WO2014148800A1 - 패턴 히터가 반복 배치된 pcr 열 블록 및 이를 포함하는 pcr 장치 - Google Patents
패턴 히터가 반복 배치된 pcr 열 블록 및 이를 포함하는 pcr 장치 Download PDFInfo
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- WO2014148800A1 WO2014148800A1 PCT/KR2014/002284 KR2014002284W WO2014148800A1 WO 2014148800 A1 WO2014148800 A1 WO 2014148800A1 KR 2014002284 W KR2014002284 W KR 2014002284W WO 2014148800 A1 WO2014148800 A1 WO 2014148800A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/52—Heating or cooling apparatus; Heat insulating devices with provision for submitting samples to a predetermined sequence of different temperatures, e.g. for treating nucleic acid samples
- B01L7/525—Heating or cooling apparatus; Heat insulating devices with provision for submitting samples to a predetermined sequence of different temperatures, e.g. for treating nucleic acid samples with physical movement of samples between temperature zones
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M1/00—Apparatus for enzymology or microbiology
- C12M1/36—Apparatus for enzymology or microbiology including condition or time responsive control, e.g. automatically controlled fermentors
- C12M1/38—Temperature-responsive control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6486—Measuring fluorescence of biological material, e.g. DNA, RNA, cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
- G01N27/3277—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction being a redox reaction, e.g. detection by cyclic voltammetry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/10—Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/12—Specific details about manufacturing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/14—Process control and prevention of errors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0645—Electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/087—Multiple sequential chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/12—Specific details about materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1805—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks
- B01L2300/1827—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks using resistive heater
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
Definitions
- the present invention relates to a PCR device having a PCR heat block in which a heater is continuously and repeatedly arranged.
- Polymerase chain reaction or PCR (Polymerase Chain Reaction, hereinafter) is a technique of repeatedly heating and cooling a specific site of a template nucleic acid to replicate the specific site in sequence to amplify exponentially a nucleic acid having the specific site. It is widely used for analysis and diagnostic purposes in the life sciences, genetic engineering and medical fields. Recently, a variety of devices for efficiently performing PCR have been developed.
- One example of a conventional PCR apparatus is equipped with a container containing a sample solution containing a template nucleic acid in a heater, and the container is repeatedly heated and cooled to perform PCR.
- the above PCR device has one heater, but the overall structure is not complicated, but it is necessary to have a complicated circuit for accurate temperature control, and the entire PCR time is long due to repeated heating or cooling for one heater. There is this.
- a PCR device is equipped with a plurality of heaters having a PCR temperature, and performs a PCR by flowing a sample solution containing nucleic acid through one channel through these heaters.
- a PCR device can be implemented in a relatively simple circuit because it uses a plurality of heaters, but a long flow path for passing a high-temperature and low-temperature heater is necessary, so the overall structure is complicated and flows through the channel passing through the heater.
- the PCR device has been developed to improve the PCR yield and the PCR process in real time, as well as to develop a miniaturized and portable device by using a miniaturized heater.
- the performance of the miniaturized heater has a great influence on the PCR yield, it is very important to develop a technology that can accurately control or implement the set temperature of the miniaturized heater. Accordingly, there is still a need for implementation of a PCR device that can significantly reduce PCR time and at the same time obtain a reliable PCR yield, and furthermore, can reduce the size and portability of a product.
- embodiments of the present invention to significantly improve the PCR time and yield, further proposed a PCR heat block to enable the miniaturization and portability of the product, and further propose a PCR device including the same do.
- a PCR heat block in which two or more heaters are repeatedly implemented, wherein the heaters include at least one of the heaters to prevent uneven heat overlap between adjacent heaters according to a radial heat distribution generated from individual heaters. It provides a PCR thermal block characterized in that it comprises a compensated pattern (compensated pattern) for controlling the heat uniformity of the heater surface by adjusting the resistance of the portion.
- the compensation pattern may be formed by repeatedly forming a gap in at least a portion of the heater to adjust the resistance according to the gap pattern to adjust the thermal uniformity of the heater surface.
- the compensating pattern may be one in which a thermal uniformity of the surface of the heater is controlled by adjusting a resistance by implementing a line width of a gap repeatedly formed in at least a portion of the heater.
- the compensation pattern may be one in which the thermal uniformity of the surface of the heater is adjusted by adjusting the resistance by implementing a different thickness of the gap repeatedly formed in at least one portion of the heater.
- the compensation pattern may be one in which the heat uniformity of the surface of the heater is adjusted by controlling the resistance by implementing materials differently on at least one part of the heater.
- the compensation pattern may be implemented by differently disposing a heater electrode on at least a portion of the heater to adjust resistance to adjust thermal uniformity of the heater surface.
- a second embodiment of the present invention is a PCR column block according to the first embodiment of the present invention; And an inlet and an outlet at both ends, which are attached to the heat block to allow heat exchange with the PCR heat block, and are arranged to extend in a longitudinal direction through upper corresponding portions of the heaters provided in the PCR heat block.
- a PCR chip comprising a plate-shaped PCR reaction unit having one or more reaction channels.
- the upper surface of the PCR thermal block may be an insulating film (insulator) for preventing the electrolysis of the PCR solution.
- a third embodiment of the present invention is a PCR column block according to the first embodiment of the present invention; Inlet and outlet portions are implemented at both ends, which are in contact with the PCR heat block so as to allow heat exchange, and are arranged to extend in a longitudinal direction through upper corresponding portions of the heaters provided in the PCR heat block.
- a plate-shaped PCR reaction unit having the above reaction channel; And it provides a PCR device including a power supply for supplying power to the heaters provided in the PCR thermal block.
- An upper surface of the PCR thermal block may be an insulating film for protecting the heater.
- the PCR device may further include a pump arranged to provide a positive or negative pressure to control the flow rate and flow rate of the PCR solution flowing in the one or more reaction channels.
- the PCR apparatus may further include a light source disposed to provide light to the PCR reaction unit, and a light detector disposed to receive light emitted from the PCR reaction unit.
- the light source or light detector may be repeatedly arranged in a space between adjacent heaters of the PCR heat block.
- the PCR reaction unit is disposed repeatedly spaced apart across the bottom surface in the longitudinal direction of the reaction channel, and provided with a detection electrode implemented to detect an electrochemical signal generated due to the combination of the amplifying nucleic acid and the active material in the reaction channel
- the detection electrode may be implemented to be disposed between the two or more heater groups.
- the PCR device may further include an electrochemical signal measuring module that is electrically connected to the detection electrode and implemented to measure in real time an electrochemical signal generated in the reaction channel of the PCR reaction unit.
- the PCR reaction unit may be repeatedly spaced apart across the cross section in the longitudinal direction of the reaction channel, but formed in one region inside the reaction channel to capture and complementarily bind to one region of the amplification target nucleic acid.
- the PCR device may further include an electrochemical signal measuring module that is electrically connected to the detection electrode and implemented to measure in real time an electrochemical signal generated in the reaction channel of the PCR reaction unit.
- the heater unit can be amplified and rapidly amplified a plurality of nucleic acid samples simultaneously and rapidly using a thermal block and plate-shaped PCR reaction unit repeatedly arranged, and the nucleic acid amplification process is real-time by measuring a continuous optical signal or an electrochemical signal. You can check with
- FIG. 1 illustrates a PCR thermal block 100 in which two or more heaters 111 and 121 are repeatedly implemented.
- FIG. 7 is a photograph showing a non-uniform radial heat distribution generated when power is supplied to individual heaters to which a compensation pattern is not applied.
- FIG 9 illustrates a PCR column block 100 according to a first embodiment of the present invention to which a compensated pattern 1000 is applied.
- FIG. 10 illustrates a compensation pattern including a gap 1100 formed in a portion of the heater 111 in the PCR thermal block according to the first embodiment of the present invention.
- FIG. 11 illustrates a compensation pattern in which a line width of a gap formed in a portion of the heater 111 is implemented in the PCR thermal block according to the first embodiment of the present invention.
- FIG. 12 illustrates a compensation pattern in which a thickness of a part of the heater 111 is implemented in the PCR thermal block according to the first embodiment of the present invention.
- FIG. 13 illustrates a compensation pattern in which a material of at least one portion of the heater 111 is implemented differently in the PCR thermal block according to the first embodiment of the present invention.
- FIG. 14 illustrates a compensation pattern in which different arrangements of at least one portion of the heater 111 are implemented in the PCR thermal block according to the first embodiment of the present invention.
- FIG. 15 is a photograph showing a heat distribution generated from a PCR heat block according to a first embodiment of the present invention.
- 16 is a graph showing the heat distribution generated from the PCR heat block according to the first embodiment of the present invention.
- FIG. 17 illustrates a PCR reaction section 300 in thermal contact with a PCR thermal block.
- FIG. 18 illustrates a PCR chip in which the PCR thermal block 100 and the PCR reaction unit 300 are integrally implemented.
- FIG. 19 illustrates a PCR device in which the PCR thermal block 100 and the PCR reaction unit 300 are implemented separately.
- FIG. 20 illustrates a PCR implemented through a PCR apparatus including a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged.
- 21 is an optical real-time implemented through a PCR apparatus including a PCR thermal block 100, a light source 150, and a light detector 600 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged. PCR is shown.
- 22-25 illustrate another type of PCR reaction unit 900 in thermal contact with the PCR thermal block of FIGS. 12-16.
- 26 is a PCR implemented through a PCR apparatus including a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged and the PCR reaction unit 900 of FIGS. 22 to 25. To show.
- FIG. 27 is a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged, a PCR reaction unit 900 of FIGS. 22 to 25, a detection electrode 950, and a signal measurement An electrochemical real-time PCR is shown implemented through a PCR device having a module 800.
- 28-31 illustrate another type of PCR reaction unit 900 in thermal contact with the PCR thermal block of FIGS. 12-16.
- FIG. 32 is a PCR implemented through a PCR apparatus including a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged and the PCR reaction unit 900 of FIGS. 28 to 31. To show.
- PCR thermal block 100 repeatedly arranged with heaters to which a compensation pattern is applied according to a first embodiment of the present invention, a PCR reaction unit 900 of FIGS. 28 to 31, an immobilization layer 940, Electrochemical real-time PCR is shown implemented through a PCR device having a detection electrode 950 and a signal measurement module 800.
- PCR Polymerase Chain Reaction
- a PCR device may prepare a solution containing a PCR sample and a reagent comprising double stranded DNA as a template nucleic acid at a specific temperature, for example about 95 ° C.
- a PCR thermal block and a PCR device including the same refers to a device including modules for performing the above steps, and a detailed module not described herein is one of the prior art for performing PCR. It is assumed that all are provided in the range disclosed or self-explanatory.
- FIG. 1 illustrates a PCR thermal block 100 in which two or more heaters 111 and 121 are repeatedly implemented
- FIGS. 2 to 6 are arrangements of heaters implementing the PCR thermal block 100 according to an embodiment of the present invention. The structure is shown.
- embodiments of the present invention are based on the premise that two or more heaters 111 and 121 are repeatedly arranged on a PCR heat block 100 for supplying heat to a PCR solution.
- the PCR thermal block 100 is a module for supplying heat to a sample and a reagent at a specific temperature to perform a PCR solution, that is, PCR, and at least one surface of the PCR reaction unit 900 in which the sample and the reagent are accommodated. In order to perform PCR by supplying heat to the PCR solution through thermal contact with one surface of the PCR reaction unit 900.
- the PCR thermal block 100 is based on the substrate 99.
- the substrate 99 is made of a material such that physical or chemical properties thereof do not change due to heating of the heaters 111 and 121 disposed on the surface thereof, and heat exchange does not occur frequently between two or more heaters.
- the substrate 99 may be made of a material such as plastic, glass, silicon, or the like, and may be implemented to be transparent or translucent as necessary.
- the PCR thermal block 100 has a generally thin plate shape, for example, about 50 nanometers (nm) to 1 millimeter (mm) thick, preferably about 250 micrometers ( ⁇ m), for miniaturization and integration of the device. It may be implemented, but is not limited thereto. Two or more heaters are repeatedly arranged on the PCR thermal block 100.
- the PCR thermal block 100 may include a heater group having one or more heaters, two or more heater groups, and the two or more heater groups. Two or more spaced heater units may be repeatedly arranged.
- the contact surface of the PCR reaction unit 900 of the PCR thermal block 100 has various shapes, for example, a surface area ratio per volume, for efficiently supplying heat to the PCR reaction unit 900 containing the PCR solution. In order to increase the volume ratio, it may be implemented in a plane shape, a channel shape, or a pillar shape.
- the heaters 111, 112, 121, 122, 131, and 132 are conductive heating elements disposed or printed on the substrate 99.
- the heaters use joule heating, and thermoelectrics that cause a peltier effect. It may be implemented as a element (Thermoelement).
- the heaters 111, 112, 121, 122, 131, and 132 may be operably connected to various power modules and control modules to maintain a constant temperature, and the heaters 111, 112, 121, 122, 131, and 132 may be driven. Can be operably connected to a sensor for monitoring the temperature of the sensor.
- the heaters 111, 112, 121, 122, 131, and 132 have unit electrodes, that is, the heater electrodes are the surface center points of the heaters 111, 112, 121, 122, 131, and 132 in order to maintain a constant internal temperature thereof. It may be arranged symmetrically in the vertical and / or left and right directions with respect to.
- the heaters (111, 112, 121, 122, 131, 132) is a metal material for fast heat transfer and conductivity, for example, from the group consisting of chromium, aluminum, copper, iron, silver, and carbon 1 It may be selected from the above or may be made of composite materials based thereon, but is not limited thereto.
- the heaters 111, 112, 121, 122, 131, and 132 are light-transmitting heating elements, for example, oxide semiconductor materials or from the group consisting of In, Sb, Al, Ga, C, and Sn in the oxide semiconductor materials. It may include one or more materials selected from the group consisting of conductive nanoparticles, indium tin oxide, conductive polymer materials, carbon nanotubes, and graphene, including a material to which selected impurities are added.
- the heater group 110, 120, 130 is a unit including the one or more heaters 111, 112, 121, 122, 131, and 132, and performs a denaturation step, annealing step, and / or extension step for PCR. It means a region for maintaining the temperature for.
- the heater groups 110, 120, and 130 are disposed at least two in the PCR thermal block 100, and the two or more heater groups 110, 120, and 130 are spaced apart on the substrate 99. Two to four may be present in the PCR thermal block 100.
- the first heater group maintains the PCR denaturation step temperature and the second heater group maintains the PCR annealing / extension step temperature, or The first heater group may maintain the PCR annealing / extension step temperature and the second heater group may maintain the PCR denaturation step temperature.
- the first heater group maintains the PCR denaturation step temperature and the second heater group maintains the PCR annealing step temperature and the third heater group.
- the heater group maintains the PCR extension step temperature, or the first heater group maintains the PCR annealing step temperature, the second heater group maintains the PCR extension step temperature, and the third heater group maintains the PCR denaturation step temperature Alternatively, the first heater group may maintain the PCR extension step temperature, the second heater group may maintain the PCR denaturation step temperature, and the third heater group may maintain the PCR annealing step temperature.
- the heater group is disposed three times in the PCR thermal block 100 to maintain three temperatures for performing PCR, that is, a temperature for performing a denaturation step, an annealing step, and an extension step, and more preferably the The thermal block 100 may be disposed twice to maintain two temperatures for performing PCR, that is, a temperature for performing a denaturation step and an annealing / extension step, respectively.
- the heater group is disposed twice on the PCR thermal block 100 to perform two steps for performing PCR, that is, a denaturation step and an annealing / extension step, three steps for performing a PCR, that is, a denaturation step, an annealing step, and PCR time can be shortened than performing the extension step, and the number of heaters is reduced, thereby simplifying the structure and increasing the density.
- the temperature for performing the denaturation step is 85 °C to 105 °C, preferably 95 °C
- the temperature for performing the annealing step is 40 °C to 60 °C, preferably Is 50 ° C.
- the temperature for performing the extension step is 50 ° C. to 80 ° C., preferably 72 ° C.
- the temperature for performing the denaturation step is 85 ° C. to 105 ° C.
- the temperature for performing the annealing / extension step is 50 ° C. to 80 ° C., preferably 72 ° C.
- the specific temperature and temperature range for performing the PCR can be adjusted within a known range in the PCR performance.
- the heater groups 110, 120, and 130 may further include additional heaters for performing a temperature buffering role.
- the heater units 10 and 20 are units including the two or more heater groups including the one or more heaters, and the first circulation including the denaturation step, annealing step, and / or extension step for performing PCR is completed. It means an area.
- the heater units 10 and 20 may be repeatedly arranged in the PCR column block 100 at least two times as necessary.
- the heater units 10 and 20 are 10, 20, 30 or 40 circuits in the PCR column block 100. May be repeated.
- the PCR thermal block 100 includes heater units 10 and 20 repeatedly disposed on an upper surface thereof, two heater groups 110 and 120 respectively included therein, and one heater respectively included therein.
- the first heater 111 maintains one temperature in the range of 85 ° C. to 105 ° C., preferably 95 ° C., so that the first heater group 110 provides a temperature for performing the modification step
- the second The heater 121 maintains one temperature in the range of 50 ° C. to 80 ° C., preferably 72 ° C. such that the second heater group 120 provides a temperature for performing an annealing / extension step, thereby providing the PCR thermal block 100.
- the PCR thermal block 100 includes heater units 10 and 20 repeatedly disposed on an upper surface thereof, two heater groups 110 and 120 included therein, and two heaters respectively included therein.
- the first heater 111 has one temperature in the range of 85 ° C to 105 ° C
- the second heater 112 has one temperature that is the same as or different from the temperature of the first heater 111 in the range of 85 ° C to 105 ° C.
- the third heater 121 is one temperature in the range of 50 °C to 80 °C
- the fourth heater 122 is 50 °C to 80
- the second heater group 120 provides a temperature for performing the annealing / extension step so that the PCR thermal block 100 is
- the first heater unit 10 and the second heater unit 20 may repeatedly provide two-stage temperature for performing PCR.
- the PCR thermal block 100 includes heater units 10 and 20 repeatedly disposed on an upper surface thereof, three heater groups 110, 120 and 130 included therein, and 1 included in each of them.
- three heaters 111, 121, and 131 three steps of temperature for performing PCR, that is, one temperature of the denaturation step, one temperature of the annealing step, and one temperature of the extension step can be sequentially provided.
- the first heater 111 maintains one temperature in the range of 85 ° C. to 105 ° C., preferably 95 ° C., so that the first heater group 110 provides a temperature for performing the modification step.
- the second heater 121 maintains one temperature in the range of 40 ° C.
- step 10 and the second heater unit 20 three steps of temperature for performing PCR may be repeatedly provided sequentially.
- the PCR thermal block 100 includes heater units 10 and 20 repeatedly disposed on an upper surface thereof, three heater groups 110, 120 and 130 included therein, and 2 included in each of them.
- the three heaters 111, 112, 121, 122, 131, and 132 the three stage temperatures for performing PCR, that is, the two temperatures of the denaturation step, the two temperatures of the annealing step, and the two temperatures of the extension step are sequentially repeated.
- the first heater 111 has one temperature in the range of 85 ° C to 105 ° C
- the second heater 112 has one temperature that is the same as or different from the temperature of the first heater 111 in the range of 85 ° C to 105 ° C.
- the third heater 121 is in the temperature range of 40 °C to 60 °C 1
- the fourth heater 122 is 40 °C to Maintaining one temperature equal to or different from the temperature of the third heater 121 in the range of 60 ° C.
- the second heater group 120 provides a temperature for performing the annealing step
- the fifth heater 131 is 50 ° C.
- the third heater group 130 extends by maintaining the first temperature equal to or different from the temperature of the fifth heater 131 within the temperature range of 50 ° C. to 80 ° C., and the sixth heater 132.
- the PCR thermal block 100 is a three step for performing PCR in the first heater unit 10 and the second heater unit 20 It may also provide a sequentially repeated.
- two or more heaters 111, 112, 121, 122, 131, and 132 maintaining a constant temperature may be repeatedly disposed on the PCR heat block 100, thereby greatly increasing the temperature change rate per hour.
- the rate of temperature change between the heaters This can be made within the range of 20 °C to 40 °C per second can greatly shorten the PCR time.
- the repeated batch heater structure According to the repeated batch heater structure according to the embodiment of the present invention, accurate temperature control is possible in the denaturation step, annealing step, and extension step (or the denaturation step and annealing / modification step) of PCR, and also heat from the heaters. It is possible to maintain the desired temperature or temperature range only at the site where the supply is made.
- a PCR cycle may be variously implemented.
- the heater unit may be repeatedly arranged ten times when it is to be applied to a PCR having 10 cycles. That is, the heater unit may be repeatedly arranged on the PCR thermal block 100 in 10, 20, 30, 40, 50, etc. in consideration of the intended PCR cycle.
- the heater unit may be repeatedly arranged in half the number of predetermined PCR cycles.
- the heater unit may be repeatedly arranged ten times when it is to be applied to a PCR having 20 cycles.
- the sample and reagent solution are repeated 10 times of the PCR circulation cycle from the inlet to the outlet in the reaction channel of the PCR reaction unit, which will be described in detail below. Can be run repeatedly.
- FIG. 6 illustrates a power supply unit 200 implemented to supply power to a PCR thermal block 100 and a heater repeatedly disposed in the PCR thermal block 100 according to an embodiment of the present invention.
- the top of FIG. 6 shows a vertical cross-sectional view of the PCR column block 100
- the bottom of FIG. 6 shows a top view of the PCR column block 100.
- the PCR thermal block 100 of FIG. 6 includes a heater unit that is repeatedly disposed ten times, and the heater unit includes a first heater group and a second heater group, and the first heater group and the second heater group, respectively.
- One heater, that is, the first heater 110 and the second heater 120 is included.
- the power supply unit 200 is a module for supplying power to the PCR thermal block 100 by heating from a power supply source, the wiring (210, 220) implemented to distribute the power to each of the heaters (110, 120) Include.
- the first wiring 210 of the PCR thermal block 100 is connected to supply power to the first heater 110
- the second wiring 220 is connected to the first wiring 110. 2 is connected to supply power to the heater (120).
- the first heater 110 maintains the PCR denaturation step temperature, for example 85 °C to 105 °C and the second heater 120 maintains the PCR annealing / extension stage temperature, for example 50 °C to 80 °C
- the second wiring 220 is the PCR annealing / extension step temperature from the power supply unit 200 Power can be supplied for maintenance.
- the first wire 210 and the second wire 220 may be implemented with a conductive material such as gold, silver, copper, but is not limited thereto.
- FIG. 7 is a photograph showing a non-uniform radial heat distribution generated when powering individual heaters to which a compensation pattern is not applied.
- the photograph shows the uneven heat overlap between adjacent heaters 111 and 121 according to the uneven radial heat distribution generated from the individual heaters.
- a radial heat distribution is formed when a single heater whose overall edge is rectangular is heated by power supply.
- a single heater having an overall rim has a rectangular shape in which the heat is generated in the central region of the heater when the constant temperature is maintained after power supply, and heat is generated at a high temperature. Compared to the edge portion is a low temperature heating. Due to this non-uniform heating phenomenon, radial heat distribution is observed around the single heater as shown in FIG. 7. This radial heat distribution provides a cause for increasing thermal nonuniformity due to thermal overlap between adjacent heaters in a PCR heat block in which two or more rectangular heaters are repeatedly arranged. According to FIG.
- FIG 9 illustrates a PCR column block 100 according to a first embodiment of the present invention to which a compensated pattern 1000 is applied.
- the PCR heat block 100 may prevent the non-uniform thermal overlap between adjacent heaters according to the radial heat distribution generated from the individual heaters 111 and 121.
- Compensated pattern (1000) for controlling the thermal uniformity of the heater surface by adjusting the resistance of at least a portion of the 111, 121.
- the compensation pattern 1000 refers to a processed pattern structure for controlling the resistance and heat dissipation amount of the heater part by modifying the shape, material, size, and arrangement of at least one part of the rectangular heater.
- the compensation pattern 1000 may be implemented in various ways according to the characteristics of the rectangular heater, for example, by repeatedly forming a gap in at least a portion of the heater to implement the gap pattern or the wavelength pattern, or at least the heater.
- the material of one part may be implemented differently from other parts, the size of at least one part of the heater may be implemented differently from other parts, or the unit electrode of at least one part of the heater, that is, the arrangement of the heater electrodes may be implemented differently from other parts. have.
- the compensation pattern 1000 may be evenly applied to the entire area of the heater, but in some cases, the compensation pattern 1000 may be applied only to a partial area of the heater or may be implemented differently in each heater repeatedly arranged.
- the heater having the compensation pattern includes photolithography, electroplating, shadow mask, and the like on the substrate.
- Evaporator Deposition, Shadow Mask and Sputter Deposition, Ink Jet, Gravure, Gravure-Offset, Screen Printing, CNC Machining It can be implemented by a manufacturing method selected from the group consisting of computerized numerically controlled machine tool, laser beam machining, and electrical discharge machining.
- FIG. 10 illustrates a compensation pattern having a gap 1100 formed in a portion of the heater 111 in the PCR thermal block according to the first embodiment of the present invention.
- the compensation pattern 1000 may be formed by repeatedly forming a gap 1100 in at least a portion of the heater 111 to adjust the resistance according to the gap pattern to adjust thermal uniformity of the heater surface.
- the gap 1100 is a shape in which at least one portion of the heater 111 is modified, and refers to a processing pattern having a heater shape, such as a recessed area, a protruding area, or a gap.
- the gap 1100 may be variously implemented on the surface of the heater 111.
- the identification number 1100a indicates a convex gap
- the identification number 1100b indicates a concave gap
- the identification number 1100c indicates a gap. Indicates.
- the gap 1100 may be repeatedly implemented on the heater rim surface to be implemented in a wave shape, which is implemented by the rim surface of the heater 111 in the form of a continuous recessed area and a protruding area. Accordingly, the shape of the heater surface may be variously implemented by the various gaps 1100 structures, and thus, the amount of heat dissipation may be controlled by adjusting the resistance of at least one portion of the heater. Meanwhile, the gap 1100 may be disposed on at least one surface of the heater 111 but may be implemented in various standards. For example, the size of the gap 1100 or the width of the gap may be variously implemented on any surface of each heater 111.
- the resistance of at least two or more regions of the heater may be adjusted, respectively, and as a result, a uniform heat distribution of each heater may be realized by adjusting the amount of heat released. Can be.
- FIG. 11 illustrates a compensation pattern in which a line width of a gap formed in a portion of the heater 111 is implemented in the PCR thermal block according to the first embodiment of the present invention.
- the compensation pattern 1000 may be one in which the thermal uniformity of the surface of the heater is controlled by controlling the resistance by differently implementing a line width of a gap repeatedly formed in at least a portion of the heater 111.
- the compensation pattern 1000 whose thermal uniformity is adjusted by adjusting the resistance according to the line width is implemented by varying the line width of at least one portion of the heater 111 to deform the resistance of at least one portion of the heater to each position of the heater. It means the processing form to control the amount of heat generated by the star.
- the line width-compensated pattern may be variously implemented in a structure in which a gap is repeatedly formed on the heater surface.
- the line width-compensated pattern may be evenly applied to the entire region of the heater 111, but may be applied to a partial region of the heater 111 in some cases.
- the PCR thermal block 100 according to the first embodiment of the present invention may be implemented in a different line width in any partition section formed on at least two or more surfaces of the heater 111. That is, a plurality of partition sections A, B, and C of the heater surfaces may be determined, and the amount of heat generated in the heater region corresponding to each of the partition sections A, B, and C may be adjusted.
- the partition sections A and C are The line width is narrower than the compartment section B, which has a relatively high resistance, resulting in higher calorific value, while the compartment section B has a wider line width than the compartment sections A and C, which has a relatively low resistance, resulting in lower heat generation. do.
- the high temperature part of the existing rectangular heater is low resistance
- the high temperature part is high resistance to adjust the heat discharge amount to reduce the overall temperature unevenness It can be improved.
- FIG. 12 illustrates a compensation pattern in which a thickness of a portion of the heater 111 is implemented in the PCR thermal block according to the first embodiment of the present invention.
- the compensating pattern 1000 may be one in which the thermal uniformity of the surface of the heater is adjusted by controlling the resistance by implementing a different thickness of at least a portion of the heater 111.
- the pattern 1000 in which the thickness of at least one portion of the heater 111 is compensated for may vary the resistance of at least one portion of the heater 111 by implementing different thicknesses of the at least one portion of the heater 111. It means a processing form for adjusting the amount of heat generated by the position of the heater 111.
- the thickness-compensated pattern 1000 may be a convex surface and a concave surface continuously arranged repeatedly on the surface of the heater 111 to implement a different thickness of the convex surface or concave surface,
- the thickness is realized in the range of about 0.001 micrometer ( ⁇ m) to 1 millimeter (mm), but is not limited thereto.
- the thickness-compensated pattern 1000 may be applied evenly to the entire region of the heater 111, but may be applied to a partial region of the heater in some cases.
- the PCR thermal block 100 according to the first embodiment of the present invention may be implemented in a different thickness in any partition section formed on at least two or more surfaces of the heater 111.
- a plurality of partition sections A, B, and C of the heater surfaces may be determined, and the amount of heat generated in the heater region corresponding to each of the partition sections A, B, and C may be adjusted.
- the thickness of the convex surface of the partition sections (A, B, C) when comparing the thickness of the convex surface of the partition sections (A, B, C), partition sections A and C are Compared with the partition sections B, the thickness is implemented to have a relatively high resistance, resulting in a higher heat generation, whereas the partition section B is thicker than the sections A and C, and thus has a relatively low resistance, resulting in lower heat generation.
- the high temperature part of the existing rectangular heater lowers the resistance, and the high temperature part adjusts the resistance and adjusts the heat dissipation amount to adjust the unevenness of the overall temperature. It can be improved.
- FIG. 13 illustrates a compensation pattern in which a material of at least one portion of the heater 111 is implemented differently in the PCR thermal block according to the first embodiment of the present invention.
- the compensating pattern 1000 may adjust the resistance by differently implementing materials of at least a part of the heater 111 to adjust thermal uniformity of the heater surface.
- the pattern 1000 compensated for the material may be implemented by differently implementing the material of at least one portion of the heater 111 to modify the resistance of at least one portion of the heater 111 to control the amount of heat generated by the location of the heater. It means form.
- the material of the heater may be a composite material selected from the group consisting of at least one selected from the group consisting of chromium, aluminum, copper, iron, silver, and carbon, and is not particularly limited as long as it is a conductive material.
- the pattern 1000 compensated for the material may be uniformly applied to the entire region of the heater 111, but may be applied to a partial region of the heater in some cases.
- the PCR thermal block 100 according to the first embodiment of the present invention may be implemented in a different material in any partition section formed on at least two or more surfaces of the heater 111. That is, a plurality of partition sections A, B, and C of the heater surfaces may be determined, and the amount of heat generated in the heater region corresponding to each of the partition sections A, B, and C may be adjusted. For example, in the PCR thermal block 100 according to the first embodiment of the present invention according to FIG.
- Sections A and C are made of a material with a higher resistivity than the section B, and thus have a higher resistance, resulting in a higher heat generation. The lower the resistance, the lower the amount of heat generated.
- the high temperature part of the conventional rectangular heater has a low resistance
- the high temperature part has a high resistance and adjusts the heat dissipation to adjust the unevenness of the overall temperature. It can be improved.
- FIG. 14 illustrates a compensation pattern in which the arrangement of at least one portion of the heater 111 is implemented differently in the PCR thermal block according to the first embodiment of the present invention.
- the compensation pattern 1000 may be configured to adjust at least one part of the heater 111 to adjust the resistance to adjust the thermal uniformity of the heater surface.
- a gap 1100 for example, a convex gap or a concave gap is disposed on one surface of the heater 111 and the other surface corresponding thereto.
- the heater electrodes 1110a and 1110b implemented in a bidirectional zigzag manner may be included.
- the gap 1100 may be implemented in a zigzag manner on the corresponding surfaces of the heater electrodes 1110a and 1110b.
- the PCR thermal block 100 is disposed away from the rectangular heater electrode 1500 and the rectangular heater electrode 1500, the heater electrode 1110a to which the compensation pattern 1000 is applied. 1110b). Furthermore, as shown in FIG. 14, the rectangular heater electrode 1500 is disposed in the center region of the heater 111, and the heater electrodes 1110a and 1110b to which the compensation pattern is applied are separated from the rectangular heater electrode 1500.
- the heater electrodes 1110a and 1110b, which are spaced apart in both directions and to which the compensation pattern is applied, may be symmetrically based on the position of the rectangular heater electrode 1500.
- the PCR thermal block 100 may be implemented by only the heater electrode including the compensation pattern 1000, but if necessary, the heater electrode to which the compensation pattern 1000 is applied and existing
- the heater electrode to which the compensation pattern 1000 is applied and existing
- the high temperature portion of the existing rectangular heater is low resistance
- the high temperature portion of the high temperature resistance by adjusting the resistance and heat dissipation to adjust the overall temperature unevenness Can improve the degree.
- Figure 16 is a graph showing a heat distribution generated from a PCR heat block according to a first embodiment of the present invention.
- the PCR thermal block is implemented such that a heater having a compensation pattern in which convex gaps and concave gaps are continuously arranged repeatedly is repeatedly arranged on a substrate.
- the PCR column block implements both the line width and the distance between the convex gaps of the partition sections A and C to 200 micrometers ( ⁇ m), and the line width and the distance between the convex gaps of the partition sections B to 400 micrometers. ( ⁇ m) was implemented to control the amount of heat generated in each section of the heater.
- the line width and the distance between the gaps of the convex gaps were found to be adjustable within a range of about 50 nanometers (nm) to 1 millimeter (mm), and the thickness of the heater was realized to be 10 micrometers ( ⁇ m), but about 10 nanometers. It was found to be adjustable within the range of meters (nm) to 1 millimeter (mm).
- the heat distribution of the PCR heat block according to an embodiment of the present invention is fairly uniform compared to the heat distribution of the conventional rectangular heater according to Figs.
- the temperature peak point (circular dotted line) of the first heater 111 and the second heater 121 adjacent thereto of the PCR heat block according to the embodiment of the present invention is distinctly different from each other. It was confirmed that the thermal uniformity was significantly reduced and the thermal uniformity was increased. Based on this, when the power is supplied to the heater to which the compensation pattern is applied, and the temperature is maintained at a constant temperature, the temperature difference between the central region and the edge portion of the heater is reduced, indicating that the overall uniform heat distribution is formed. there was.
- PCR heat block As described above, using the PCR heat block according to the first embodiment of the present invention, it is possible to precisely control the temperature can significantly increase the PCR efficiency through the PCR process and further simplify and integrate the control module Miniaturization of the PCR apparatus is possible, and the manufacturing process is expected to be simpler, thereby further securing economic efficiency.
- FIG. 17 illustrates a PCR reaction unit 300 in thermal contact with a PCR thermal block.
- the PCR reaction unit 300 is disposed on the first plate 310 and the first plate 310 that are attached or attached to the PCR thermal block 100 and the one or more reaction channels 303. And a second plate 320 having an inlet) and an inlet 304 and an outlet 305 at both ends of the one or more reaction channels 303, respectively, disposed on the second plate 320. It may include a third plate 330.
- the PCR reaction unit 300 may be implemented in a variety of materials, but is preferably implemented in a thin film shape of a plastic material as a whole.
- the PCR reaction unit 300 may be implemented with a light transmitting material, and if fluorescence, phosphorescence, luminescence, Raman spectroscopy, surface enhanced Raman scattering, Surface Enhanced Raman When used for optical measurement-based real-time PCR applications such as Scattering, and Surface Plasmon Resonance, the PCR reaction unit 300 is preferably implemented with a light transmissive material.
- the first plate 310 is adhered to or attached to the PCR heat block 100 to receive heat from the PCR heat block 100.
- the first plate 310 may be implemented with various materials, but preferably, polydimethylsiloxane (PDMS), cycloolefin copolymer (COC), polymethylmethacrylate (PMMA), or the like. ), Polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof
- the material may be.
- the top surface of the first plate 310 may be treated with a hydrophilic material (not shown), which allows the PCR to be performed smoothly.
- a single layer including a hydrophilic material may be formed on the first plate 310.
- the hydrophilic material may be a variety of materials, but preferably may be selected from the group consisting of carboxyl group (-COOH), amine group (-NH2), hydroxy group (-OH), and sulfone group (-SH), Treatment of the hydrophilic material can be carried out according to methods known in the art.
- the second plate 320 is disposed on the first plate 310.
- the second plate 320 includes one or more reaction channels 303.
- the one or more reaction channels 303 are connected to portions corresponding to the inlet 304 and the outlet 305 formed in the third plate 330. Therefore, the PCR reaction proceeds after the target sample solution to be amplified is introduced into the one or more reaction channels 303.
- the one or more reaction channels 303 may be present in two or more depending on the purpose and range of use, and according to FIG. 1, five reaction channels 303 are illustrated.
- the second plate 320 may be made of various materials, but preferably, polymethylmethacrylate (PMMA), polycarbonate (PC), cycloolefin copolymer (cycloolefin copolymer, COC) , Polyamide (PA), polyethylene (PE), polypropylene (PP), polyphenylene ether (PPE), polystyrene (PS), polyoxymethylene (POM) Polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), polyvinylidene fluoride (PVDF), polybutylene terephthalate (polybutylene terephthalate) , PBT), fluorinated ethylenepropylene (FEP), perfluoroalkoxyalkane (PFA), and combinations thereof It is chosen or a thermoplastic resin may be a thermosetting resin material.
- the thickness of the second plate 320 may vary, but may be selected from 0.01 ⁇ m to 5 mm.
- the width and length of the reaction channel 303 may vary, but preferably the width of the reaction channel 303 is selected from 0.001 mm to 10 mm, the length of the reaction channel 303 is 1 mm To 400 mm.
- the inner wall of the second plate 320 may be coated with a material such as silane-based and Bovine Serum Albumin (BSA) to prevent DNA and protein adsorption. Treatment of the materials can be carried out according to methods known in the art.
- BSA Bovine Serum Albumin
- the third plate 330 is disposed on the second plate 320.
- the third plate 330 includes an inlet portion 304 formed in one region on one or more reaction channels 303 formed in the second plate 320 and an outlet portion 305 formed in the other region.
- the inlet 304 is a portion to which the target sample solution containing the nucleic acid to be amplified is introduced.
- the outlet 305 is a portion where the target sample solution is discharged after PCR is completed.
- the third plate 330 covers at least one reaction channel 303 formed in the second plate 320, wherein the inlet 304 and the outlet 305 are at least one reaction channel ( It serves as an inlet and outlet of 303).
- the third plate 330 may be implemented with various materials, but preferably, polydimethylsiloxane (PDMS), cycloolefin copolymer (COC), polymethylmethacrylate (polymethylmetharcylate) , PMMA), polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material selected from.
- the inlet 304 may have various sizes, but preferably may be selected from 0.001 mm to 10 mm in diameter.
- the outlet 305 may have a variety of sizes, but preferably may be selected from 0.001 mm to 10 mm in diameter.
- the inlet 304 and the through-opening outlet 305 are provided with separate cover means (not shown) to target the PCR when the target sample solution proceeds in the one or more reaction channels 303.
- the sample solution can be prevented from leaking.
- the cover means may be implemented in various shapes, sizes or materials.
- the thickness of the third plate 330 may vary, but preferably may be selected from 0.001 mm to 10 mm.
- the inlet 304 and the outlet 305 may be present in two or more.
- the PCR reaction unit 300 to form the inlet 304 and the outlet 305 through mechanical processing to provide the third plate (330);
- the plate having a size corresponding to the bottom surface of the third plate 330 from the portion corresponding to the inlet portion 304 of the third plate 330 to the outlet portion 305 of the third plate 330 Forming one or more reaction channels 303 through mechanical processing to a corresponding portion to provide a second plate 320;
- Providing a first plate 310 by forming a surface made of a hydrophilic material (not shown) through a surface treatment on an upper surface of a plate having a size corresponding to a lower surface of the second plate 320.
- the inlet 304 and outlet 305 of the third plate 330, and one or more reaction channels 303 of the second plate 320 are injection molding, hot-embossing It can be formed by a processing method selected from the group consisting of embossing, casting, and laser ablation.
- the hydrophilic material on the surface of the first plate 310 may be treated by a method selected from the group consisting of oxygen and argon plasma treatment, corona discharge treatment, and surfactant application and performed according to methods known in the art. Can be.
- the lower surface of the third plate 330 and the upper surface of the second plate 320, the lower surface of the second plate 320 and the upper surface of the first plate 310 may be thermally bonded ( Thermal bonding, Ultrasonic Welding, Solvent Bonding, Hot Plate Welding, Ultraviolet Bonding, and Press Bonding processes, It can be carried out according to a known method.
- a double-sided adhesive or a thermoplastic or thermosetting resin (not shown) may be processed between the third plate 330 and the second plate 320 and between the second plate 320 and the first plate 310. .
- FIG. 18 illustrates a PCR chip in which the PCR thermal block 100 and the PCR reaction unit 300 are integrally implemented
- FIG. 19 illustrates a PCR in which the PCR thermal block 100 and the PCR reaction unit 300 are separately implemented. The device is shown.
- the PCR column block having the compensated pattern according to the first embodiment of the present invention can be applied to various PCR modules or devices.
- the PCR heat block having the compensation pattern may be mounted on a PCR reaction unit containing a PCR solution and implemented as a PCR chip (chip embedded type, FIG. 18), and a separate PCR chip including the PCR reaction unit. It can be implemented with a PCR device implemented to overheat or separate (chip external, Fig. 19).
- an insulating layer 306 may be formed on an upper surface of the PCR thermal block including the compensated pattern to prevent electrolysis of the PCR solution.
- An insulating layer 307 for protecting a heater may be formed on an upper surface of the PCR thermal block.
- the thickness of the insulating layers 306 and 307 is preferably about 20 micrometers ( ⁇ m), it has been confirmed that the thickness of the insulating films 306 and 307 may be implemented within a range of about 50 nanometers (nm) to 1 millimeter (mm).
- the insulating film may be implemented with various materials to prevent electrolysis of the PCR solution.
- the insulating film may be selected from the group consisting of oxide, nitride, thermosetting resin, thermoplastic resin, and UV curable resin. have.
- the oxide is silicon oxide (SiO 2 ), titanium oxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), hafnium oxide (HfO 2 ), vanadium oxide (V 3 O 4 ), zirconium Oxide (ZrO 2 ), antimony oxide (Sb 2 O 3 ), and yttrium oxide (Y 2 O 3 ), wherein the nitride is silicon nitride (Si 3 N 4 ), titanium nitride (TiN), aluminum nitride (AlN), tantalum nitride (Ta 3 N 5 ), hafnium nitride (HfN), vanadium nitride (VN), and zirconium nitride (ZrN),
- the thermosetting resin is a phenol resin (Phenol Resin), epoxy resin (Epoxy Resin), urea resin (Urea Resin), melamine resin (Melamine Resin), alkyd resin (Polyester Res
- the UV curable resin may be selected from epoxy acrylate, polyester acrylate, urethane acrylate, polybutadiene acrylate, and silicone acrylate. Acrylate), and alkyl acrylate (Alkyl Acrylate).
- the insulating film is photolithography, electroplating, shadow mask and evaporator deposition, shadow mask and sputter deposition on the upper surface of the PCR thermal block. (Sputter Deposition, Ink jet, Gravure, Gravure-Offset, and Screen Printing) can be implemented by a manufacturing method selected from the group consisting of.
- FIG. 20 illustrates a PCR implemented through a PCR apparatus including a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged.
- a PCR device includes a PCR reaction unit 300, a power supply 400, and a pump 500. Specifically, the PCR reaction unit 300 is in contact with the PCR heat block.
- the power supply 400 is a module for supplying power to the power supply 200, and may be connected to the first wire 210 and the second wire 220 of the power supply 200, respectively.
- a first power port (not shown) of the power supply 400 is electrically connected to the first wiring 210
- a second power port (shown in the power supply 400) is shown. Not connected) is electrically connected to the second wiring 220.
- the power supply 400 supplies power to the first wiring 210 and the second wiring 220, respectively, so that the first heater and the second heater of the PCR thermal block.
- the heaters can be heated quickly, and when each heater reaches a predetermined temperature, the power supply is controlled to maintain the predetermined temperature.
- the predetermined temperature may be a PCR denaturation step temperature (85 ° C. to 105 ° C., preferably 95 ° C.) in the first heater and a PCR annealing / extension step temperature (50 ° C. to 80 ° C., Preferably 72 ° C.) or PCR annealing / extension step temperature (50 ° C. to 80 ° C., preferably 72 ° C.) in the first heater and PCR denaturation step temperature (85 ° C. to 105 ° C., in the second heater).
- 95 ° C Preferably 95 ° C).
- the pump 500 is a module for controlling the flow rate and the flow rate of the fluid flowing in the one or more reaction channels 303 of the PCR reaction unit 300, may be a positive pressure pump or a negative pressure pump, for example It may be a syringe pump.
- the pump 500 may be operably disposed in a portion of the reaction channel 303, but preferably the inlet 304 and / or outlet 305 formed at both ends of the reaction channel 303. Is placed connected to).
- the pump 500 When the pump 500 is connected to the inlet 304 and / or outlet 305, it serves as a pump as well as a target sample through the inlet 304 and / or outlet 305. It can also act as a stopper to prevent leakage of the solution.
- the pump 500 may include one of the inlet 304 and the outlet 305. It can be connected to only one, and a general stopper can be sealedly connected to the remaining one, the pump (if you want to control the flow rate and flow rate of the fluid flowing in the reaction channel 303, i. 500 may be connected to both the inlet 304 and the outlet 305.
- the nucleic acid amplification reaction of the PCR solution in the PCR device including the PCR reaction unit 300, the power supply 400, and the pump 500 may be performed through the following steps.
- oligonucleotide primer having a sequence complementary to the specific nucleotide sequence to be amplified
- DNA polymerase DNA polymerase
- dNTP deoxyribonucleotide triphosphates
- PCR reaction buffer Prepare a PCR solution containing.
- the PCR solution is introduced into the PCR reaction unit 300.
- the PCR solution is disposed in the reaction channel 303 inside the PCR reaction unit 300 through the inlet 304.
- the power supply unit 200 specifically, the first wiring 210 and the second wiring 220 are connected to the power supply 400, respectively, the inlet 304 of the PCR reaction unit 300 And the outlet 305 is sealedly connected to the pump 500.
- the power supply unit 400 is instructed to supply power to heat the first heater and the second heater through the first wire 210 and the second wire 220, and generate a specific temperature, for example.
- the PCR denaturation step temperature (95 ° C.) for the first heater and the PCR annealing / extension step temperature (72 ° C.) are maintained for the second heater.
- the target sample solution is transferred to the reaction channel 303. Allow it to flow horizontally from the inside.
- the flow rate and flow rate of the PCR solution may be controlled by adjusting the strength of the positive pressure or the negative pressure provided by the pump 500.
- the PCR solution lengthens the upper corresponding portion of the first heater and the upper corresponding portion of the second heater from the inlet 304 end to the outlet 305 end of the reaction channel 303.
- the PCR solution is supplied with heat from a heat block 100 in which a heater unit including the first heater and the second heater is disposed 10 times, and denatures the PCR in an upper corresponding portion of the first heater.
- the PCR annealing / extension step is performed in the step and the upper corresponding portion of the second heater to complete the 10 PCR cycles.
- the PCR solution is then longitudinally directed to the upper corresponding portion of the first heater and the upper corresponding portion of the second heater from the outlet 305 end of the reaction channel 303 to the inlet 304 end.
- the PCR can be performed again while moving backward.
- 21 is an optical real-time implemented through a PCR apparatus including a PCR thermal block 100, a light source 150, and a light detector 600 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged. PCR is shown.
- a PCR device includes a PCR reaction part 300 made of a light transmissive material and a light source 150 between the first heater 110 and the second heater 120. It includes a thermal block 100, a power supply 400, a pump 500 and a light detector 600 disposed.
- the PCR reaction unit 300 according to FIG. 21 is implemented with a light transmissive material, and the light source 150 is disposed between the first heater 110 and the second heater 120 of the PCR heat block 100. It is done.
- the PCR apparatus further includes a light detector 600 for detecting the light emitted from the light source 150. Therefore, the PCR device can measure and analyze the nucleic acid amplification process in real-time during PCR. In this case, a separate fluorescent substance may be further added to the PCR solution, which induces a measurable light signal by emitting light with a specific wavelength according to the generation of the PCR product.
- the light source 150 may be a mercury arc lamp, a xenon arc lamp, a tungsten arc lamp, a metal halide arc lamp, a metal halide optical fiber fiber) and LEDs (Light Emitting Diodes).
- the wavelength of the light source 150 may be selected within a range of about 200 nanometers (nm) to 1300 nanometers (nm), and may be implemented in multiple wavelengths using multiple light sources or filters.
- the light detector 600 may be selected from a group consisting of a charge-coupled device (CCD), a charge-injection device (CID), a complementary-metal-oxide-semiconductor detector (CMOS), and a photo multiplier tube (PMT). Can be.
- CCD charge-coupled device
- CID charge-injection device
- CMOS complementary-metal-oxide-semiconductor detector
- PMT photo multiplier tube
- the light source 150 may be disposed in a space between the first heater 110 and the second heater 120.
- the light source 150 may be operably connected to a lens (not shown) that collects the light emitted from the light source 150 and an optical filter (not shown) that filters light of a specific wavelength band. .
- the PCR solution may denature the PCR while successively passing through the upper corresponding portion 301 of the first heater 110 and the upper corresponding portion 302 of the second heater 120 in the reaction channel 303.
- Step and PCR annealing / extension step in which case the PCR solution is between the first heater 110 and the second heater 120 and between the first heater 110 and the second heater 120 Between the heater unit to pass through the upper corresponding portion of the light source 150.
- the light detector 600 passes through the optical transparent PCR reaction unit 300, specifically, the reaction channel 330, and measures and analyzes the optical signal generated by nucleic acid amplification in the reaction channel 330.
- the amount of target nucleic acid is monitored in real-time by monitoring the result of the reaction by amplification of nucleic acid (with fluorescent substance bound) in the reaction channel 303 during each cycle of PCR. -time) can be measured and analyzed.
- 22-25 illustrate another type of PCR reaction unit 900 in thermal contact with the PCR thermal block of FIGS. 12-16.
- the PCR reaction unit 900 according to FIGS. 22 to 25 is repeatedly spaced apart across the bottom surface in the longitudinal direction of the reaction channel, and the electrochemical signal generated due to the binding of the amplifying nucleic acid and the active material inside the reaction channel. And a detection electrode configured to detect, wherein the detection electrode is disposed between the two or more heater groups in thermal contact with the heat block.
- the PCR reaction unit 900 is implemented in a plate shape, at least one reaction channel 921 having the inlet part 931 and the outlet part 932 implemented at both ends, and in the longitudinal direction of the reaction channel 921.
- the PCR reaction unit 900 is a nucleic acid, for example, a template nucleic acid double stranded DNA, which is a PCR sample, an oligonucleotide primer having a sequence complementary to a specific nucleotide sequence to be amplified, a PCR reagent, DNA polymerase, and triphosphate deoxyribo.
- the PCR reaction unit 900 includes an inlet 931 for introducing the sample and reagent, an outlet 932 for discharging the solution having completed the nucleic acid amplification reaction, and a nucleic acid amplification reaction of the sample and reagent.
- Reaction channel 921 is provided. Referring to FIG. 22, the reaction channel 921 may be disposed to extend in a longitudinal direction through an upper corresponding portion of the first heater and an upper corresponding portion of the second heater.
- the PCR reaction unit 900 may receive heat from the heat block 100, and PCR samples and reagents included in the reaction channel 921 of the PCR reaction unit 900 may be heated and maintained.
- the PCR reaction unit 900 is implemented in a plate shape as a whole so as to increase the thermal conductivity and have two or more reaction channels 921.
- the PCR reaction unit 900 may be implemented as a plastic material of a transparent or opaque material, the thickness of the plastic material can be easily adjusted to increase the heat transfer efficiency only by adjusting the thickness, the manufacturing process is simple You can save money.
- the active material is defined as a substance that chemically reacts (couples) with the amplifying nucleic acid to generate an electrochemical signal
- the electrochemical signal can be continuously detected and measured according to the continuous amplification of the nucleic acid Say a signal.
- a double stranded nucleic acid DNA
- the amplified nucleic acid reacts with the active material as a result of continuous amplification of the nucleic acid, thereby detecting a change in total charge amount. Can be derived.
- the electrochemical signal may be due to the change in the total current value due to the combination of the negative charge of the amplified nucleic acid and the positive charge of the active material
- the active material may be a cationic material in the ionization product of the ion-binding material have.
- the ionizable material may be methylene blue
- the active material may be a cationic material in the ionization product of methylene blue.
- the methylene blue (C 16 H 18 N 3 SCl.3H 2 O) is ionized when dissolved in a solvent and ionized with C 16 H 18 N 3 S + and Cl ⁇ , in the case of the former is positively charged by a sulfur atom (S).
- Double-stranded nucleic acid is composed of sugar, base and phosphoric acid, of which the phosphate group is negatively charged, double-stranded nucleic acid (DNA) is negatively charged as a whole.
- the cation of methylene blue binds to the phosphate group of DNA, reducing the apparent diffusion of methylene blue bound to the double-stranded nucleic acid rather than the apparent diffusion of methylene blue, thus reducing the peak value of the current. Therefore, as the PCR cycle proceeds, the double-stranded nucleic acid (DNA) is amplified and the amount of methylene blue bound to the double-stranded nucleic acid (DNA) increases, resulting in a decrease in the peak value of the current. Real-time quantification of amplified nucleic acids is possible through an electrical signal due to chemical bonding of.
- the detection electrode 950 may be formed of various materials to detect an electrochemical signal generated by the combination of an amplifying nucleic acid and an active material in the one or more reaction channels 921, for example, gold (Au ), Cobalt (Co), platinum (Pt), silver (Ag), carbon nanotubes (carbon nanotube), graphene (graphene), and carbon (carbon) may be selected from one or more.
- the detection electrode 950 is repeatedly spaced apart across the bottom surface in the longitudinal direction of the reaction channel 921, and the detection electrode 950 is the two or more heater groups in thermal contact with the thermal block 100. It is implemented to be disposed between (110, 120, 130). Referring to FIG.
- the detection electrodes 950 are repeatedly spaced at regular intervals from the inlet 931 to the outlet 932 at regular intervals.
- the electrochemical signal may be repeatedly detected from the nucleic acid sequentially amplified while passing through the channel 921 in the longitudinal direction.
- the detection electrode 950 is disposed on the bottom surface of the reaction channel 921.
- the PCR reaction unit 900 may be divided into three layers based on the vertical cross-sectional view.
- the PCR reaction unit 900 may include a first plate 910 provided with the detection electrode 950; A second plate 920 disposed on the first plate 910 and provided with the one or more reaction channels 921; And a third plate 930 disposed on the second plate 920 and provided with the inlet part 931 and the outlet part 932.
- An upper surface of the first plate 910 provided with the detection electrode 950 is adhesively disposed on a lower surface of the second plate 920.
- the first plate 910 is adhered to the second plate 920 having the reaction channel 921 to secure a space with respect to the reaction channel 921, and further, at least the reaction channel 921.
- the detection electrode 950 is disposed in one region (surface).
- the first plate 910 may be implemented in a variety of materials, preferably polydimethylsiloxane (PDMS), cycloolefin copolymer (cycle olefin copolymer, COC), polymethyl methacrylate (polymethylmetharcylate) , PMMA), polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material selected from.
- a hydrophilic material (not shown) may be processed on the upper surface of the first plate 910 to smoothly perform PCR.
- hydrophilic material By treating the hydrophilic material, a single layer including a hydrophilic material may be formed on the first plate 910.
- the hydrophilic material may be a variety of materials, but preferably may be selected from the group consisting of carboxyl group (-COOH), amine group (-NH2), hydroxy group (-OH), and sulfone group (-SH), Treatment of the hydrophilic material can be carried out according to methods known in the art.
- the second plate 920 includes the reaction channel 921.
- the reaction channel 921 is connected to a portion corresponding to the inlet portion 931 and the outlet portion 932 formed on the third plate 910 so that the inlet portion 931 and the outlet portion 932 are implemented at both ends.
- the reaction channel 921 may be present in two or more depending on the purpose and range of use.
- the second plate 920 may be formed of various materials, but preferably, polymethylmethacrylate (PMMA), polycarbonate (PC), cycloolefin copolymer (cycloolefin copolymer, COC) , Polyamide (PA), polyethylene (PE), polypropylene (PP), polyphenylene ether (PPE), polystyrene (PS), polyoxymethylene (POM) Polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), polyvinylidene fluoride (PVDF), polybutylene terephthalate (polybutylene terephthalate) , PBT), fluorinated ethylenepropylene (FEP), perfluoroalkoxyalkane (PFA), and combinations thereof It is chosen or a thermoplastic resin may be a thermosetting resin material.
- the thickness of the second plate 920 may vary, but may be selected from 10 ⁇ m to 2000 ⁇ m.
- the width and length of the reaction channel 921 may vary, but preferably, the width of the reaction channel 921 is selected from 0.001 mm to 10 mm, the length of the reaction channel 921 is 1 mm To 400 mm.
- the inner wall of the second plate 920 may be coated with a material such as silane-based and Bovine Serum Albumin (BSA) to prevent DNA and protein adsorption.
- BSA Bovine Serum Albumin
- the lower surface of the third plate 930 is disposed on the upper surface of the second plate 920.
- the third plate 930 includes an inlet portion 931 formed in one region on the reaction channel 921 formed in the second plate 920 and an outlet portion 932 formed in the other region.
- the inlet portion 931 is a portion into which the PCR sample and the reagent are introduced.
- the outlet 932 is a portion where the PCR product flows out after the PCR is completed. Accordingly, the third plate 930 covers the reaction channel 921 formed in the second plate 920, but the inlet part 931 and the outlet part 932 are the inlet part of the reaction channel 921 and the same. It will act as an outlet.
- the third plate 930 may be made of various materials, but preferably, polydimethylsiloxane (PDMS), cycloolefin copolymer (CCO), polymethylmethacrylate (polymethylmetharcylate) , PMMA), polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material selected from.
- the inlet portion 931 may have various sizes, but preferably may be selected from a diameter of 1.0 mm to 3.0 mm.
- the outlet portion 932 may have various sizes, but preferably may be selected from a diameter of 1.0 mm to 1.5 mm.
- the inlet part 931 and the outlet part 932 are provided with separate cover means (not shown), so that the solution leaks when the PCR sample and the reagent in the reaction channel 921 proceed with the PCR. Can be prevented.
- the cover means may be implemented in various shapes, sizes or materials.
- the thickness of the third plate may vary, but preferably may be selected from 0.1 mm to 2.0 mm.
- the inlet part 931 and the outlet part 932 may exist at least two.
- the PCR reaction unit 900 to form an inlet (931) and outlet 932 through mechanical processing to provide a third plate (930);
- the plate having a size corresponding to the bottom surface of the third plate 930 from the portion corresponding to the inlet portion 931 of the third plate 930 to the outlet portion 932 of the third plate 930.
- the inlet 931 and outlet 932 of the third plate 930 and the reaction channel 921 of the second plate 920 are injection molding, hot-embossing. It can be produced by a processing method selected from the group consisting of, casting, and laser ablation.
- the hydrophilic material 922 on the surface of the first plate 910 may be treated by a method selected from the group consisting of oxygen and argon plasma treatment, corona discharge treatment, and surfactant application and are known in the art. Can be performed according to.
- a lower surface of the third plate 930 and an upper surface of the second plate 920, and a lower surface of the second plate 920 and an upper surface of the first plate 910 may be thermally bonded ( Thermal bonding, Ultrasonic Welding, Solvent Bonding, Hot Plate Welding, Ultraviolet Bonding, and Press Bonding processes, It can be carried out according to a known method.
- a double-sided adhesive, a thermoplastic resin, or a thermosetting resin 500 may be processed between the third plate 930 and the second plate 920 and between the second plate 920 and the third plate 910.
- the detection electrode 950 may be implemented in various ways.
- a working electrode 950a in which the amplification nucleic acid is coupled to the active material and a reference electrode as a reference for measuring the electrode potential by the coupling of the amplification nucleic acid and the active material do not occur (a two-electrode module having a reference electrode 950b, or a counter electrode through which currents generated from the working electrode 950a, the reference electrode 950b, and the working electrode flow, as shown in FIG. It can be implemented as a three-electrode module having a (950c).
- the sensitivity of the electrochemical signal generated inside the reaction channel 921 may be increased, and the detection and detection of the generated signal may be performed. Measurement can be performed easily.
- 26 is a PCR implemented through a PCR apparatus including a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged and the PCR reaction unit 900 of FIGS. 22 to 25. To show.
- the PCR reaction unit 900 is disposed on the PCR thermal block 100, and the detection electrode 950 is repeatedly disposed on the upper surface of the thermal block 100. It is arrange
- the PCR reaction unit 900 and the components included therein are as described above.
- the power supply 400 is a module for supplying power to the power supply 200, and may be connected to the first wire 210 and the second wire 220 of the power supply 200, respectively.
- a first power port (not shown) of the power supply 400 is electrically connected to the first wiring 210
- a second power port (not shown) of the power supply 400 is not shown. Not connected) is electrically connected to the second wiring 220.
- the power supply 400 supplies power to the first wiring 210 and the second wiring 220, respectively, so that the first heater of the PCR thermal block 100 is provided.
- the predetermined temperature may be a PCR denaturation step temperature (85 ° C. to 105 ° C., preferably 95 ° C.) in the first heater and a PCR annealing / extension step temperature (50 ° C. to 80 ° C., Preferably 72 ° C.) or PCR annealing / extension step temperature (50 ° C. to 80 ° C., preferably 72 ° C. or 60 ° C.) for the first heater and PCR denaturation step temperature (85 ° C. to 60 ° C.) for the second heater. 105 ° C., preferably 95 ° C.).
- the pump 500 is a module for controlling the flow rate and flow rate of the fluid flowing in the one or more reaction channels 921 of the PCR reaction unit 900, may be a positive pressure pump or a negative pressure pump, for example It may be a syringe pump.
- the pump 500 may be operably disposed in a portion of the reaction channel 921, but preferably the inlet 931 and / or outlet 932 formed at both ends of the reaction channel 921. Is placed in the connection. When the pump 500 is connected to the inlet 931 and / or the outlet 932, the pump 500 may not only serve as a pump but also provide a sample and the like through the inlet 931 and / or the outlet 932.
- the pump 500 when it is desired to control the flow rate and the flow rate of the fluid flowing in the reaction channel 921, that is, the sample and reagent solution in one direction, the pump 500 is the inlet part 931 and the outlet part 932 If only one of the connections, and the remaining one can be connected to the common plug is sealed, the flow rate and flow rate of the fluid flowing in the reaction channel 921, that is, the sample and reagent solution in both directions if the The pump 500 may be connected to both the inlet part 931 and the outlet part 932.
- the nucleic acid amplification reaction of the PCR solution in the real-time PCR device may be performed by the following steps as an example.
- oligonucleotide primer having a sequence complementary to the specific nucleotide sequence to be amplified
- DNA polymerase DNA polymerase
- dNTP deoxyribonucleotide triphosphates
- PCR reaction buffer Prepare a PCR solution containing.
- the PCR solution is introduced into the PCR reaction unit 900.
- the PCR solution is disposed in the reaction channel 921 inside the PCR reaction unit 900 through the inlet 931.
- the power supply unit 200 specifically, the first wiring 210 and the second wiring 220 are connected to the power supply 400, respectively, and the inlet portion 931 of the PCR reaction unit 900. And the outlet 932 is sealingly connected to the pump 500.
- the sample and reagent solutions are transferred to the reaction channel 921.
- the flow rate and flow rate of the sample and reagent solutions may be controlled by adjusting the strength of the positive pressure or the negative pressure provided by the pump 500.
- the PCR solution lengthens the upper corresponding portion of the first heater and the upper corresponding portion of the second heater from the inlet 931 end to the outlet 932 end of the reaction channel 921.
- the PCR solution is supplied with heat from a heat block 100 in which a heater unit including the first heater and the second heater is disposed 10 times, and denatures the PCR in an upper corresponding portion of the first heater.
- the PCR annealing / extension step is performed in the step and the upper corresponding portion of the second heater to complete the 10 PCR cycles.
- the PCR solution is then longitudinally directed to the upper corresponding portion of the first heater and the upper corresponding portion of the second heater from the outlet 931 end of the reaction channel 921 to the inlet 932 end.
- the PCR can be performed again while moving backward.
- FIG. 27 is a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged, a PCR reaction unit 900 of FIGS. 22 to 25, a detection electrode 950, and a signal measurement An electrochemical real-time PCR is shown implemented through a PCR device having a module 800.
- a PCR device includes a PCR thermal block 100 in which a first heater 110 and a second heater 120 are repeatedly arranged in a horizontal direction, and the first heater 110. And a PCR reaction unit 900 repeatedly arranged to correspond to the detection electrode 950 in a space between the second heaters 120 and an electrical connection with a connection port (not shown) of the chip holder (not shown).
- the electrochemical signal measuring module 800 implemented to measure in real time the electrochemical signal generated inside the reaction channel 921 of the PCR reaction unit 900, and other, although not shown, includes a power supply, a pump, etc. .
- the electrochemical signal measuring module 800 may be electrically connected to the connection port of the chip holder through an electrical connection means 700, for example, a lead wire. Therefore, electrochemical signals repeatedly generated by sequential nucleic acid amplification in the reaction channel 921 of the PCR reaction unit 900 are sequentially detected through the detection electrode 950 of the PCR reaction unit 900. The detected signal may be measured and further processed or analyzed by the electrochemical signal measuring module 800 via the connection port of the chip holder and the electrical connection means 700.
- the electrochemical signal measuring module 800 may vary, but an anode stripping voltammetry (ASV), a chronoamperometry (CA), a cyclic voltammetry, a square wave voltmeter (square) wave voltammetry (SWV), differential pulse voltammetry (DPV), and impedance. Therefore, according to the real-time PCR device according to an embodiment of the present invention, it is possible to measure and analyze the nucleic acid amplification process in real-time when performing PCR. In this case, unlike the optical real-time PCR device, the PCR solution does not need to be added a separate fluorescent material.
- the step of measuring the nucleic acid amplification reaction in real-time (real-time) by the real-time PCR device can be confirmed.
- the PCR solution may denature the PCR while successively passing the upper corresponding portion 301 of the first heater 110 and the upper corresponding portion 302 of the second heater 120 in the reaction channel 921.
- Step and PCR annealing / extension step in which case the PCR solution is between the first heater 110 and the second heater 120 and between the first heater 110 and the second heater 120 Passes through the detection electrode 950 region repeatedly disposed between the heater unit including.
- the electrochemical generated by the binding of the amplifying nucleic acid and the active substance after slowing or maintaining the flow rate of the PCR solution for a short time through fluid control The signal may be sequentially detected and measured through the detection electrode 950 in real time. Accordingly, the amount of target nucleic acid is monitored in real time by monitoring the result of the reaction by amplification of the nucleic acid in the reaction channel 921 (without the fluorescent substance and the light detection system) in real time during each cycle of PCR. Can be detected and measured in real-time
- 28-31 illustrate another type of PCR reaction unit 900 in thermal contact with the PCR thermal block of FIGS. 12-16.
- the PCR reaction unit 900 is repeatedly spaced apart across the cross section in the longitudinal direction of the reaction channel is formed in one region inside the reaction channel is complementary to one region of the amplification target nucleic acid Capable capture probe (capture probe) having a surface-treated immobilization layer and a detection electrode formed in the other region inside the reaction channel implemented to detect an electrochemical signal, the metal nanoparticle and the And a complex having a signaling probe coupled to the metal nanoparticle and capable of complementarily binding to another region of the amplification target nucleic acid.
- Capable capture probe capture probe having a surface-treated immobilization layer and a detection electrode formed in the other region inside the reaction channel implemented to detect an electrochemical signal, the metal nanoparticle and the And a complex having a signaling probe coupled to the metal nanoparticle and capable of complementarily binding to another region of the amplification target nucleic acid.
- the PCR reaction unit 900 is disposed above the PCR thermal block 100, and at least one reaction channel 921 having the inlet part 931 and the outlet part 932 implemented at both ends thereof, and the reaction.
- Capture probes that are repeatedly spaced apart across the cross section in the longitudinal direction of the channel 921 and are formed in one region inside the reaction channel 921 to complementarily bind to one region of the amplification target nucleic acid.
- the reaction channel 921 is a space in which PCR is performed by a PCR solution, and is formed in the PCR reaction unit 900.
- the reaction channel 921 may be implemented in various shapes and structures, such as a hollow cylinder shape, a bar shape, and a square cylinder shape.
- the reaction channel 921 is disposed in one region therein, and an immobilization layer 940 surface-treated with a capture probe capable of complementarily binding to one region of the amplifying target nucleic acid, and A detection electrode 950 disposed in another region of the interior, and configured to detect an electrochemical signal, wherein the immobilization layer 940 and the detection electrode 950 are located inside the reaction channel 921.
- the reaction channel 921 is a complex having a metal nanoparticle and a signal probe (signaling probe) that is connected to the metal nanoparticles and can complementarily bind to another region of the amplification target nucleic acid therein.
- the complex may be previously contained in the reaction channel 921 before introduction of a PCR sample including a template nucleic acid, and the like, and may be included in a PCR reagent including a primer, a polymerase, and the like. It may be introduced together.
- the immobilization layer 940 is formed of various materials, for example, silicon, plastic, glass, metal, or the like, so that a capture probe is deposited and exposed on one surface thereof.
- the surface of the immobilization layer 940 may be first surface-treated with a material such as amine NH 3 + , aldehyde COH, carboxyl group COOH, or the like before the capture probe deposition.
- the capture probe is implemented to complementarily bind to a portion (region) of the amplification target nucleic acid, and binds to metal nanoparticles to form a complex.
- the metal nanoparticles may vary, but zinc (Zn), cadmium (Cd), lead (Pb), copper (Cu), gallium (Ga), indium (In), gold (Au), chromium (Cr), Manganese (Mn), Iron (Fe), Cobalt (Co), Nickel (Ni), Cesium (Cs), Barium (Ba), Cadmium (Cd), Mercury (Hg), Arsenic (As), Selenium (Se), It may be selected from the group consisting of tin (Sn), antimony (Sb), bismuth (Bi) and silver (Ag).
- the signaling probe is implemented to bind to a region of the amplification target nucleic acid complementarily, in this case, in the amplification target nucleic acid, the complementary binding region of the signaling probe is the capture It is different from the complementary binding region of the capture probe.
- the capture probe and the signaling probe can complementarily bind to the amplification target nucleic acid.
- the amplified target nucleic acid complementarily binds to a capture probe surface-treated on the immobilization layer 940, and Complementarily binds with a signaling probe coupled to the metal nanoparticles to concentrate the metal nanoparticles in a region proximate the immobilization layer 940.
- the metal nanoparticles do not reach the detection electrode 26, causing a current change (decrease) between the metal nanoparticle and the detection electrode 26, so that a detectable electrochemical signal due to amplification of a target nucleic acid is obtained. Will occur.
- the amplification target nucleic acid, the capture probe, and the signaling probe may be single stranded DNA.
- the detection electrode 950 is disposed in at least one region of the reaction channel 921 and is implemented to detect an electrochemical signal generated inside the reaction channel 921.
- the detection electrode 950 may be made of various materials to perform the above functions, but for example, gold (Au), cobalt (Co), platinum (Pt), silver (Ag), carbon nanotubes (carbon) nanotube), graphene, graphene, and carbon.
- the detection electrode 950 may be implemented in various shapes and structures to efficiently detect electrochemical signals generated inside the reaction channel 921. For example, as illustrated in FIG. ) It may be implemented in a plate shape of a metal material disposed along the inner surface.
- the electrochemical signal is measured by the electrochemical signal measuring module to be described later, the electrochemical signal measuring module may vary, but anodizing stripping voltammetry (ASV), a time-based ammeter (chronoamperometry, CA) ), Cyclic voltammetry, square wave voltammetry (SWV), differential pulse voltammetry (DPV), and impedance.
- ASV stripping voltammetry
- CA time-based ammeter
- SWV square wave voltammetry
- DPV differential pulse voltammetry
- impedance impedance
- the electrochemical signal may be due to a change in current generated as the amplification target nucleic acid complementarily binds to the capture probe and the signaling probe.
- the first step is before the initiation of PCR, the original state of the signaling probe-metal nanoparticles containing the capture probe, the signaling probe and the metal nanoparticles surface-treated in the immobilization layer.
- the second step includes a current change (signal) generated by reduction or oxidation between the working electrode and the metal nanoparticles
- the third step is after initiation of PCR, thereby amplifying a target nucleic acid. (target DNA) in combination with a capture probe and a signaling probe of the signaling probe-metal nanoparticle to cause a decrease in current change (signal reduction).
- a reducing voltage is applied to the metal nanoparticles of the signaling probe-metal nanoparticles, the metal nanoparticles are placed on the proximal surface of the working electrode.
- the accumulation of metal nanoparticles is reduced to form an accumulation layer, followed by application of a voltage to the working electrode, whereby the reducing metal nanoparticles are oxidized (Stripping) and a change in current, that is, a signal.
- the signal change can be easily measured by the voltage value indicated by the oxidation current peak.
- a current change value ie, an electrochemical signal
- in the reaction channel 921 represents a change amount of target DNA.
- the voltage value at which the metal nanoparticles are oxidized is different for each kind of metal nanoparticles, when two or more metal nanoparticles are used, Simultaneous signal detection is also possible. Then, when PCR is performed, target DNA is amplified from a template nucleic acid, and the amplified target DNA is a signal probe of the capture probe and the signaling probe-metal nanoparticle.
- hybridized target DNA by interfering with (signaling probe) to prevent the accumulation of metal nanoparticles (Accumulation of metal nanoparticles) of the metal nanoparticles (Signaling probe-metal nanoparticles) as above
- the signal value of the capture probe and the signaling probe-metal nanoparticle increases as the current value decreases, and further, the amount of amplified target DNA increases as the PCR cycle proceeds.
- the hybridized target DNA also increases with the probe so that the current value (signal) is further reduced. Therefore, real-time PCR can be implemented by detecting and measuring the current reduction phenomenon, that is, the electrochemical signal.
- the immobilization layer 940 and the detection electrode 950 are repeatedly spaced apart across the cross section in the longitudinal direction of the reaction channel 921, and the PCR thermal block 100 is disposed.
- the immobilization layer 940 and the detection electrode 950 are arranged to be disposed between the two or more heater groups 110, 120, and 130 in thermal contact with the substrate.
- the immobilization layer 940 and the detection electrode 950 may include a reaction channel from the inlet 931 to the outlet 932. 921 is repeatedly arranged at regular intervals. Through such a structure, an electrochemical signal can be repeatedly detected from nucleic acids sequentially amplified while passing through the reaction channel 921 in the longitudinal direction.
- FIG. 29 which shows a vertical cross-sectional view of the PCR reaction unit 900
- the immobilization layer 940 and the detection electrode 950 are disposed to face each other in the cross section of the reaction channel 921.
- the positions of the immobilization layer 940 and the detection electrode 950 may be changed up and down.
- the PCR reaction unit 900 may be divided into three layers based on a vertical cross-sectional view.
- the PCR reaction unit 900 may include a first plate 910 provided with the detection electrode 950; A second plate 920 disposed on the first plate 910 and provided with the one or more reaction channels 921; And a third plate 930 disposed on the second plate 920 and provided with the immobilization layer 940, the inlet 931, and the outlet 932.
- the detection electrode 950 may be disposed on the third plate 930
- the immobilization layer 940 may be disposed on the first plate 910.
- An upper surface of the first plate 910 provided with the detection electrode 950 is adhesively disposed on a lower surface of the second plate 920.
- the first plate 910 is adhered to the second plate 920 having the reaction channel 921 to secure a space with respect to the reaction channel 921, and further, at least the reaction channel 921.
- the detection electrode 950 is disposed in one region (surface).
- the first plate 910 may be implemented in a variety of materials, preferably polydimethylsiloxane (PDMS), cycloolefin copolymer (cycle olefin copolymer, COC), polymethyl methacrylate (polymethylmetharcylate) , PMMA), polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material selected from.
- a hydrophilic material (not shown) may be processed on the upper surface of the first plate 910 to smoothly perform PCR.
- hydrophilic material By treating the hydrophilic material, a single layer including a hydrophilic material may be formed on the first plate 910.
- the hydrophilic material may be a variety of materials, but preferably may be selected from the group consisting of carboxyl group (-COOH), amine group (-NH2), hydroxy group (-OH), and sulfone group (-SH), Treatment of the hydrophilic material can be carried out according to methods known in the art.
- the second plate 920 includes the reaction channel 921.
- the reaction channel 921 is connected to a portion corresponding to the inlet portion 931 and the outlet portion 932 formed on the third plate 910 so that the inlet portion 931 and the outlet portion 932 are implemented at both ends.
- the reaction channel 921 may be present in two or more according to the purpose and range of use of the PCR device according to an embodiment of the present invention.
- the second plate 920 may be formed of various materials, but preferably, polymethylmethacrylate (PMMA), polycarbonate (PC), cycloolefin copolymer (cycloolefin copolymer, COC) , Polyamide (PA), polyethylene (PE), polypropylene (PP), polyphenylene ether (PPE), polystyrene (PS), polyoxymethylene (POM) Polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), polyvinylidene fluoride (PVDF), polybutylene terephthalate (polybutylene terephthalate) , PBT), fluorinated ethylenepropylene (FEP), perfluoroalkoxyalkane (PFA), and combinations thereof It is chosen or a thermoplastic resin may be a thermosetting resin material.
- the thickness of the second plate 920 may vary, but may be selected from 100 ⁇ m to 200 ⁇ m.
- the width and length of the reaction channel 921 may vary, but preferably, the width of the reaction channel 921 is selected from 0.001 mm to 10 mm, the length of the reaction channel 921 is 1 mm To 400 mm.
- the inner wall of the second plate 920 may be coated with a material such as silane-based and Bovine Serum Albumin (BSA) to prevent DNA and protein adsorption.
- BSA Bovine Serum Albumin
- the lower surface of the third plate 930 is disposed on the upper surface of the second plate 920.
- the third plate 930 includes an immobilization layer 940, an inlet 931, and an outlet 932 formed on the reaction channel 921 formed in the second plate 920.
- the inlet portion 931 is a portion into which the PCR sample and the reagent are introduced.
- the outlet 932 is a portion where the PCR product flows out after the PCR is completed. Accordingly, the third plate 930 covers the reaction channel 921 formed in the second plate 920, but the inlet part 931 and the outlet part 932 are the inlet part of the reaction channel 921 and the same. It will act as an outlet.
- the third plate 930 may be made of various materials, but preferably, polydimethylsiloxane (PDMS), cycloolefin copolymer (CCO), polymethylmethacrylate (polymethylmetharcylate) , PMMA), polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material selected from.
- the inlet portion 931 may have various sizes, but preferably may be selected from a diameter of 1.0 mm to 3.0 mm.
- the outlet portion 932 may have various sizes, but preferably may be selected from a diameter of 1.0 mm to 1.5 mm.
- the inlet part 931 and the outlet part 932 are provided with separate cover means (not shown), so that the solution leaks when the PCR sample and the reagent in the reaction channel 921 proceed with the PCR. Can be prevented.
- the cover means may be implemented in various shapes, sizes or materials.
- the thickness of the third plate may vary, but preferably may be selected from 0.1 mm to 2.0 mm.
- the inlet part 931 and the outlet part 932 may exist at least two.
- the PCR reaction unit 900 to form an inlet (931) and outlet 932 through mechanical processing to provide a third plate (930);
- the plate having a size corresponding to the bottom surface of the third plate 930 from the portion corresponding to the inlet portion 931 of the third plate 930 to the outlet portion 932 of the third plate 930.
- the inlet 931 and outlet 932 of the third plate 930 and the reaction channel 921 of the second plate 920 are injection molding, hot-embossing. It can be produced by a processing method selected from the group consisting of, casting, and laser ablation.
- the hydrophilic material 922 on the surface of the first plate 910 may be treated by a method selected from the group consisting of oxygen and argon plasma treatment, corona discharge treatment, and surfactant application and are known in the art. Can be performed according to.
- a lower surface of the third plate 930 and an upper surface of the second plate 920, and a lower surface of the second plate 920 and an upper surface of the first plate 910 may be thermally bonded ( Thermal bonding, Ultrasonic Welding, Solvent Bonding, Hot Plate Welding, Ultraviolet Bonding, and Press Bonding processes, It can be carried out according to a known method.
- a double-sided adhesive, a thermoplastic resin, or a thermosetting resin 500 may be processed between the third plate 930 and the second plate 920 and between the second plate 920 and the third plate 910.
- the detection electrode 950 may be implemented in various ways.
- a two-electrode module having a working electrode 950a in which an oxidation or reduction reaction occurs and a reference electrode 950b in which no oxidation or reduction reaction occurs, as shown in FIG. 30, or FIG.
- the three-electrode module may include a working electrode 950a, a reference electrode 950b, and a counter electrode 950c for adjusting an electronic balance generated from the indicator electrode. .
- the sensitivity of the electrochemical signal generated inside the reaction channel 921 may be increased, and the detection and detection of the generated signal may be performed. Measurement can be performed easily.
- FIG. 32 is a PCR implemented through a PCR apparatus including a PCR thermal block 100 in which heaters to which a compensation pattern is applied according to a first embodiment of the present invention are repeatedly arranged and the PCR reaction unit 900 of FIGS. 28 to 31. To show.
- the PCR reaction unit 900 is disposed on the PCR thermal block 100, and specifically, the detection electrode 950 is repeatedly disposed on an upper surface of the PCR thermal block 100.
- the power supply 400 is a module for supplying power to the power supply 200, and may be connected to the first wire 210 and the second wire 220 of the power supply 200, respectively.
- a first power port (not shown) of the power supply 400 is electrically connected to the first wiring 210
- a second power port shown in the power supply 400 is shown. Not connected is electrically connected to the second wiring 220.
- the power supply 400 supplies power to the first wiring 210 and the second wiring 220, respectively, so that the first heater of the PCR thermal block 100 is provided.
- 110 and the second heater 120 can be quickly heated, and when the heaters 110 and 120 reach a predetermined temperature, power supply is controlled to maintain the predetermined temperature.
- the predetermined temperature may be a PCR denaturation step temperature (85 ° C. to 105 ° C., preferably 95 ° C.) in the first heater 110 and a PCR annealing / extension step temperature (in the second heater 120). 50 ° C.
- a PCR annealing / extension step temperature 50 ° C. to 80 ° C., preferably 72 ° C. or 60 ° C.
- the PCR denaturation step temperature 85 °C to 105 °C, preferably 95 °C
- the pump 500 is a module for controlling the flow rate and flow rate of the fluid flowing in the one or more reaction channels 921 of the PCR reaction unit 900, may be a positive pressure pump or a negative pressure pump, for example It may be a syringe pump.
- the pump 500 may be operably disposed in a portion of the reaction channel 921, but preferably the inlet 931 and / or outlet 932 formed at both ends of the reaction channel 921. Is placed in the connection. When the pump 500 is connected to the inlet 931 and / or the outlet 932, the pump 500 may not only serve as a pump but also provide a sample and the like through the inlet 931 and / or the outlet 932.
- the pump 500 when it is desired to control the flow rate and the flow rate of the fluid flowing in the reaction channel 921, that is, the sample and reagent solution in one direction, the pump 500 is the inlet part 931 and the outlet part 932 If only one of the connections, and the remaining one can be connected to the common plug is sealed, the flow rate and flow rate of the fluid flowing in the reaction channel 921, that is, the sample and reagent solution in both directions if the The pump 500 may be connected to both the inlet part 931 and the outlet part 932.
- the nucleic acid amplification reaction of the PCR solution in the real-time PCR device may be performed by the following steps as an example.
- oligonucleotide primer having a sequence complementary to the specific nucleotide sequence to be amplified
- DNA polymerase DNA polymerase
- dNTP deoxyribonucleotide triphosphates
- PCR reaction buffer Prepare a PCR solution containing.
- the PCR solution is introduced into the PCR reaction unit 900.
- the PCR solution is disposed in the reaction channel 921 inside the PCR reaction unit 900 through the inlet 931.
- the power supply unit 200 specifically, the first wiring 210 and the second wiring 220 are connected to the power supply 400, respectively, and the inlet portion 931 of the PCR reaction unit 900. And the outlet 932 is sealingly connected to the pump 500.
- the power supply 400 is instructed to supply power to heat the first heater 110 and the second heater 120 through the first wiring 210 and the second wiring 220, A specific temperature, for example, the PCR denaturation step temperature (95 ° C.) for the first heater 110 and the PCR annealing / extension step temperature (72 ° C.) for the second heater 120 are maintained.
- the sample and reagent solutions are transferred to the reaction channel 921.
- the flow rate and flow rate of the sample and reagent solutions may be controlled by adjusting the strength of the positive pressure or the negative pressure provided by the pump 500.
- the PCR solution is supplied from the end of the inlet 931 of the reaction channel 921 to the end of the outlet 932 of the upper corresponding portion 301 of the first heater 110 and the second heater. PCR is performed while moving the upper corresponding portion 302 of 120 in the longitudinal direction.
- the PCR solution receives heat from the PCR heat block 100 in which a heater unit including the first heater 110 and the second heater 120 is repeatedly disposed 10 times, and is located above the first heater 110. 10 PCR cycles are completed while undergoing a PCR denaturation step in the corresponding part 301 and a PCR annealing / extension step in the upper corresponding part 302 of the second heater 120.
- the PCR solution is formed from the upper corresponding portion of the first heater 110 and the second heater 120 from the outlet 931 end of the reaction channel 921 to the end of the inlet 932. PCR can be performed again while the upper corresponding part is reversely moved in the longitudinal direction.
- PCR thermal block 100 repeatedly arranged with heaters to which a compensation pattern is applied according to a first embodiment of the present invention, a PCR reaction unit 900 of FIGS. 28 to 31, an immobilization layer 940, Electrochemical real-time PCR is shown implemented through a PCR device having a detection electrode 950 and a signal measurement module 800.
- a PCR device includes a PCR thermal block 100 in which a first heater 110 and a second heater 120 are repeatedly disposed in a horizontal direction, and the first heater 110. ) And a PCR reaction unit 900 repeatedly arranged to correspond to an immobilization layer 940 and a detection electrode 950 in a space between the second heater 120 and the chip holder (not shown).
- An electrochemical signal measuring module 800 which is electrically connected to a connection port (not shown) and is implemented to measure in real time an electrochemical signal generated inside the reaction channel 921 of the PCR reaction unit 900, although shown in FIG. But not necessarily includes power sources, pumps, and the like.
- the electrochemical signal measuring module 800 may be electrically connected to the connection port of the chip holder through an electrical connection means 700, for example, a lead wire. Therefore, electrochemical signals repeatedly generated by sequential nucleic acid amplification in the reaction channel 921 of the PCR reaction unit 900 are sequentially detected through the detection electrode 950 of the PCR reaction unit 900. The detected signal may be measured and further processed or analyzed by the electrochemical signal measuring module 800 via the connection port of the chip holder and the electrical connection means 700.
- the electrochemical signal measuring module 800 may vary, but an anode stripping voltammetry (ASV), a chronoamperometry (CA), a cyclic voltammetry, a square wave voltmeter (square) wave voltammetry (SWV), differential pulse voltammetry (DPV), and impedance. Therefore, according to the real-time PCR device according to an embodiment of the present invention according to Figure 33, it is possible to measure and analyze the nucleic acid amplification process in real-time (PC) when performing the PCR. In this case, unlike the conventional real-time PCR device, the PCR solution does not need to add a separate fluorescent material.
- ASV anode stripping voltammetry
- CA chronoamperometry
- SWV square wave voltmeter
- DPV differential pulse voltammetry
- the PCR solution may denature the PCR while successively passing the upper corresponding portion 301 of the first heater 110 and the upper corresponding portion 302 of the second heater 120 in the reaction channel 921.
- Step and PCR annealing / extension step in which case the PCR solution is between the first heater 110 and the second heater 120 and between the first heater 110 and the second heater 120 Passes through the detection electrode 950 region repeatedly disposed between the heater unit including.
- the amplification target nucleic acid and the capture probe and the amplification target nucleic acid and the capture probe An electrochemical signal (change of current) generated by complementary coupling with a signaling probe of a complex may be sequentially detected and measured in real time through the detection electrode 950. Accordingly, the amount of target nucleic acid is monitored in real time by monitoring the result of the reaction by amplification of the nucleic acid in the reaction channel 921 (without the fluorescent substance and the light detection system) in real time during each cycle of PCR. Can be detected and measured in real-time
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Abstract
Description
Claims (17)
- 2 이상의 히터가 반복적으로 구현된 PCR 열 블록(100)에 있어서,상기 히터는 개별 히터로부터 발생하는 방사형 열 분포에 따른 인접 히터 간 불균일한 열 중첩을 방지하기 위해 상기 히터의 적어도 일 부분의 저항을 조절하여 상기 히터 표면의 열 균일도를 조절하는 보상형 패턴(compensated pattern)(1000)을 구비하는 것을 특징으로 하는 PCR 열 블록.
- 제1항에 있어서,상기 보상형 패턴은 상기 히터의 적어도 일 부분에 간극(1100)을 반복 형성하여 간극 패턴에 따른 저항을 조절하여 상기 히터 표면의 열 균일도가 조절된 것을 특징으로 하는 PCR 열 블록.
- 제2항에 있어서,상기 보상형 패턴은 상기 히터의 적어도 일 부분에 반복 형성된 간극의 폭(line width)을 달리 구현함으로써 저항을 조절하여 상기 히터 표면의 열 균일도가 조절된 것을 특징으로 하는 PCR 열 블록.
- 제1항에 있어서,상기 보상형 패턴은 상기 히터의 적어도 일 부분의 두께를 달리 구현함으로써 저항을 조절하여 상기 히터 표면의 열 균일도가 조절된 것을 특징으로 하는 PCR 열 블록.
- 제1항에 있어서,상기 보상형 패턴은 상기 히터의 적어도 일 부분의 재질을 달리 구현함으로써 저항을 조절하여 상기 히터 표면의 열 균일도가 조절된 것을 특징으로 하는 PCR 열 블록.
- 제1항에 있어서,상기 보상형 패턴은 상기 히터의 적어도 일 부분의 배치를 달리 구현함으로써 저항을 조절하여 상기 히터 표면의 열 균일도가 조절된 것을 특징으로 하는 PCR 열 블록.
- 제1항에 따른 PCR 열 블록; 및상기 PCR 열 블록과 열 교환이 가능하도록 상기 열 블록 상에 부착되되 상기 PCR 열 블록에 구비된 히터들의 상측 대응 부분들을 길이 방향으로 통과하도록 연장 배치된, 양 말단에 유입부 및 유출부가 구현된 1 이상의 반응 채널을 구비하는 판 형상의 PCR 반응부;를 포함하는 PCR 칩.
- 제7항에 있어서,상기 PCR 열 블록의 상부 면은 PCR 용액의 전기 분해 방지용 절연막(insulator)이 형성된 것을 특징으로 하는 PCR 칩.
- 제1항에 따른 PCR 열 블록;상기 PCR 열 블록과 열 교환이 가능하도록 상기 열 블록 상에 접촉되되 상기 PCR 열 블록에 구비된 히터들의 상측 대응 부분들을 길이 방향으로 통과하도록 연장 배치된, 양 말단에 유입부 및 유출부가 구현된 1 이상의 반응 채널을 구비하는 판 형상의 PCR 반응부; 및상기 PCR 열 블록에 구비된 히터들에 전력을 공급하기 위한 전력 공급부;를 포함하는 PCR 장치.
- 제9항에 있어서,상기 PCR 열 블록의 상부 면은 히터 보호용 절연막(insulator)이 형성된 것을 특징으로 하는 PCR 장치.
- 제9항에 있어서,상기 1 이상의 반응 채널 내에서 유동하는 PCR 용액의 유량 및 유속을 제어하기 위해 양압 또는 음압을 제공하도록 배치된 펌프를 더 포함하는 것을 특징으로 하는 PCR 장치.
- 제9항에 있어서,상기 PCR 반응부에 광을 제공하도록 배치된 광원, 및 상기 PCR 반응부로부터 방출되는 광을 수용하도록 배치된 광 검출부를 더 포함하는 것을 특징으로 하는 PCR 장치.
- 제12항에 있어서,상기 광원 또는 광 검출부는 상기 PCR 열 블록의 인접 히터 사이 공간에 반복 배치되는 것을 특징으로 하는 PCR 장치.
- 제9항에 있어서,상기 PCR 반응부는 상기 반응 채널의 길이 방향으로 그 하단 면을 가로질러 반복 이격 배치되되 상기 반응 채널 내부에서 증폭 핵산과 활성물질의 결합으로 인해 발생하는 전기화학적 신호를 검출하도록 구현된 검출 전극을 구비하는 것으로서, 상기 PCR 열 블록과의 열 접촉시 상기 검출 전극은 상기 2 이상의 히터 군 사이에 배치되도록 구현된 것을 특징으로 하는 PCR 장치.
- 제14항에 있어서,상기 검출 전극과 전기적으로 연결되어 상기 PCR 반응부의 반응 채널 내부에서 발생하는 전기화학적 신호를 실시간으로 측정하도록 구현된 전기화학적 신호 측정 모듈을 더 포함하는 것을 특징으로 하는 PCR 장치.
- 제9항에 있어서,상기 PCR 반응부는 상기 반응 채널의 길이 방향으로 그 단면을 가로질러 반복 이격 배치되되 상기 반응 채널 내부의 일 영역에 형성되어 증폭 표적 핵산의 일 영역과 상보적으로 결합할 수 있는 포획 프로브(capture probe)가 표면 처리된 고정화(immobilization) 층 및 상기 반응 채널 내부의 다른 일 영역에 형성되어 전기화학적 신호를 검출하도록 구현된 검출 전극을 구비하는 것으로서, 금속 나노입자 및 상기 금속 나노입자에 연결되되 상기 증폭 표적 핵산의 다른 일 영역과 상보적으로 결합할 수 있는 신호 프로브(signaling probe)를 구비하는 복합체를 포함하는 것을 특징으로 하는 PCR 장치.
- 제16항에 있어서,상기 검출 전극과 전기적으로 연결되어 상기 PCR 반응부의 반응 채널 내부에서 발생하는 전기화학적 신호를 실시간으로 측정하도록 구현된 전기화학적 신호 측정 모듈을 더 포함하는 것을 특징으로 하는 PCR 장치.
Priority Applications (7)
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US14/777,540 US10272437B2 (en) | 2013-03-18 | 2014-03-18 | PCR heating block having pattern heater repeatedly arranged thereon and PCR device having the same |
JP2015561284A JP6069536B2 (ja) | 2013-03-18 | 2014-03-18 | パターンヒーターが繰り返し配置されたポリメラーゼ連鎖反応(pcr)熱ブロック及びこれを備えるポリメラーゼ連鎖反応(pcr)装置 |
EP14768574.7A EP2977441A4 (en) | 2013-03-18 | 2014-03-18 | THERMAL PCR BLOCK WITH REPEATEDLY FITTED PROFILE HEATING AND PCR APPARATUS INCLUDING THE SAME |
CA2907654A CA2907654C (en) | 2013-03-18 | 2014-03-18 | Pcr thermal block with pattern heaters repeatedly arranged and pcr apparatus including same |
RU2015144509A RU2618859C2 (ru) | 2013-03-18 | 2014-03-18 | Нагревательный блок пцр с повторно расположенными контурными нагревателями и устройство пцр, содержащее его |
AU2014238680A AU2014238680B2 (en) | 2013-03-18 | 2014-03-18 | PCR thermal block with pattern heaters repeatedly arranged and PCR apparatus including same |
CN201480016764.8A CN105073974B (zh) | 2013-03-18 | 2014-03-18 | 反复配置有图案加热器的聚合酶链式反应热块及包括其的聚合酶链式反应装置 |
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KR1020130028772A KR102041205B1 (ko) | 2013-03-18 | 2013-03-18 | 패턴 히터가 반복 배치된 pcr 열 블록 및 이를 포함하는 pcr 장치 |
KR10-2013-0028772 | 2013-03-18 |
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EP (1) | EP2977441A4 (ko) |
JP (1) | JP6069536B2 (ko) |
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- 2014-03-18 CN CN201480016764.8A patent/CN105073974B/zh not_active Expired - Fee Related
- 2014-03-18 WO PCT/KR2014/002284 patent/WO2014148800A1/ko active Application Filing
- 2014-03-18 JP JP2015561284A patent/JP6069536B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN105073974B (zh) | 2018-06-05 |
CA2907654A1 (en) | 2014-09-25 |
EP2977441A4 (en) | 2016-11-02 |
AU2014238680B2 (en) | 2017-04-27 |
US10272437B2 (en) | 2019-04-30 |
JP6069536B2 (ja) | 2017-02-01 |
KR102041205B1 (ko) | 2019-11-06 |
CA2907654C (en) | 2022-07-12 |
CN105073974A (zh) | 2015-11-18 |
JP2016508734A (ja) | 2016-03-24 |
US20160279639A1 (en) | 2016-09-29 |
KR20140114206A (ko) | 2014-09-26 |
AU2014238680A1 (en) | 2015-10-15 |
RU2015144509A (ru) | 2017-04-28 |
RU2618859C2 (ru) | 2017-05-11 |
EP2977441A1 (en) | 2016-01-27 |
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