CN107262165A - The co-detections of tumor markers in benign chip apparatus for taking the dual drive of integrated architecture to couple - Google Patents
The co-detections of tumor markers in benign chip apparatus for taking the dual drive of integrated architecture to couple Download PDFInfo
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- CN107262165A CN107262165A CN201610240923.3A CN201610240923A CN107262165A CN 107262165 A CN107262165 A CN 107262165A CN 201610240923 A CN201610240923 A CN 201610240923A CN 107262165 A CN107262165 A CN 107262165A
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Abstract
The present invention relates to the co-detections of tumor markers in benign chip apparatus that a kind of dual drive for taking integrated architecture is coupled, belong to analysis testing field.The substrate for eight kinds of classifiable tumor markers in detecting micro-fluidic chips that women is applicable is made so that PDMS is dimethyl silicone polymer, it is advantageous, there is problem;This case is directed to the problem.This case main points are, the selected PDMS with ecosystem surface of substrate, and fastening is positioned at the test liquid stream terminal of the micro-fluidic chip its neighbor positions manually by the hinge-type fixture for being attached to miniature ultrasonic transducer units, simultaneously, ultrasonic wave damper is installed at the sample introduction end of the micro-fluidic chip, reach ultrasonic intensity rapid decrement in short distance, so as to form interfacial tension difference at the two ends of the chip, difference offer is a kind of to drive the strength that test liquid stream flows along hydrophobic capillary channel to the terminal direction, the strength while with Micropump its mechanicalness pumping strength Collaboration for being included in structure.
Description
Technical field
The present invention relates to the co-detections of tumor markers in benign chip apparatus that a kind of dual drive for taking integrated architecture is coupled, belong to analysis and survey
Examination field.
Background technology
Tumor markers (tumor marker, TM) refers in the generation and breeding of tumour, is produced in itself by tumour cell
Raw either reacted by body tumour cell and produce, reflection tumour exist and growth a class material, including protein,
Hormone, enzyme (isodynamic enzyme) and oncoprotein etc..The tumor markers in blood samples of patients or body fluid is chemically examined, can be in cancer screening
Early detection tumour, and observe the curative effect of oncotherapy and judge patient's prognosis.The tumor markers clinically commonly used at present has:
(1) alpha-fetoprotein (AFP) is the mark of the tumours such as primary carcinoma of liver, carcinoma of testis, oophoroma;(2) carcinomebryonic antigen (CEA) is digestion
The mark of the tumours such as system tumor, lung cancer, breast cancer;(3) CA125 (CA125) is the mark of the tumours such as oophoroma;
(4) CA153 (CA153) is the mark of the tumours such as breast cancer;(5) CA19-9 (CA19-9) is digestive system tumor
Mark;(6) CA724 (CA724) is the mark of the tumours such as stomach cancer, oophoroma;(7) carbohydrate antigen 242 (CA242)
For the mark of digestive system tumor;(8) CA50 (CA50) is the mark of the tumours such as digestive system tumor, breast cancer, lung cancer
Thing;(9) CYFRA21-1 (Cy211) is the mark of the tumours such as non-small cell lung cancer;(10) neuronspecific enolase (NSE)
For the mark of the tumours such as ED-SCLC, neuroendocrine tumor;(11) PSA (PSA) is prostate cancer
Tumor markers;(12) human chorionic gonadotrophin (HCG) is that embryonic cell carcinoma, trophoblastic tumor (suede cancer, vesicular mole) etc. are swollen
The mark of knurl;(13) thyroglobulin (TG) is the mark of thyroid cancer;(14) ferritin (SF) is digestive system tumor, liver
The mark of the tumours such as cancer, breast cancer, lung cancer;(15) B2M (β 2-MG) is in chronic lymphocytic leukemia, lymph
Raised in the patient body fluids such as knurl, myeloma, lung cancer, thyroid cancer, nasopharyngeal carcinoma;(16) squamous cell antigen (SCC) be cervical carcinoma,
The tumor markerses such as lung squamous cancer, the cancer of the esophagus.The tumor markers overwhelming majority clinically detected at present is not only present in malignant tumour
In, exist in benign tumour, embryonic tissue, even in normal structure.Therefore, tumor markers has dynamic chek and multinomial
Joint inspection is more valuable.So for numerous tumor markerses, clinically how to selectDifferent tumours understands some phases
To special tumor markers, such as CA153 often appears in breast cancer;CEA often appears in intestinal cancer, stomach cancer;CA19-9 is often appeared in
Intestinal cancer, cancer of pancreas;CA125 often appears in oophoroma etc..Clinician can be according to the different mark of different tumor examinations.
Same tumour or different types of tumour can have one or more of tumor markerses abnormal;Same tumor markers can be in difference
Tumour in occur.To improve the additive diagnostic value of tumor markers and determining which kind of mark can be supervised as the follow-up after treatment
Index is surveyed, tumor markers joint-detection, the complementary tumor markers group of several sensitivity of reasonable selection, specific performance can be carried out
Into best of breed, joint-detection is carried out.In general the joint-detection of tumor markers can improve the accuracy to diagnosing tumor.
Only with regard to Diagnostic Value of Several Serum Tumor Markers its joint-detection background of related itself general picture or overview for, may refer to
Lower Chinese invention patent application case:CN200410041175.3、CN200510026780.8、CN200610040051.2、
CN200910064647.X。
Only for the microfluidic chip technology overall general picture of itself, famous micro-fluidic expert Mr. Lin Ping Cheng may refer to soon
Before the monograph " diagram Microfluid based Lab on a chip " that goes out, the monograph is published via Science Press, and the monograph is for micro-fluidic
Past of technology, now, and, in terms of vision of the future etc., suffer from detail, be deep into long discussion of detail.
So, the focal issue that this case that to have a talk below is paid special attention to.
The basic framework of micro-fluidic chip, including it is etched with the substrate of small fluid course and the cover plate fit together therewith,
Small fluid course on the substrate, assembling upper cover plate before, it is apparent on see to be exactly some micro-channels, wait until thereon
After covering cover plate, just real closure forms the small fluid course, and the conduit inner surface of the micro-channel is together with surround this
The part cover plate of micro-channel constitutes described small fluid course together;So, it is clear that this after assembling is completed is small
Fluid course, the major part of its inner surface area is the inner surface area of that micro-channel, in other words, in the micro-channel
The state or property on surface substantially determine the integrality or property of the small fluid course;Therefore say, this is built in base
The inner surface state or inner surface property of micro-channel on piece are key factors;In principle, it is any to keep or protecting substantially
The material of its solid forms is held, can be used to make substrate and cover plate, such as, the material that can act as substrate and cover plate can be with
It is monocrystalline silicon piece, quartz plate, sheet glass, high polymer such as dimethyl silicone polymer, polymethyl methacrylate, makrolon etc.
Deng;Certainly, the selection of substrate and the selection of cover plate be able to can also be differed with identical;From material consumption, manufacture difficulty and
From the point of view of in terms of application popularization prospect etc., between these materials exist not small difference, the especially selection of that substrate, influence compared with
Greatly.
In various substrate making materials, dimethyl silicone polymer, i.e. PDMS, comparatively very easily shaping, so
Substrate on make that micro-channel is extremely simple, and the lower cost for material makes substrate with the polydimethyl siloxane material,
Micro-channel is being suppressed or etched thereon, and is being engaged with the cover plate that the cheap material such as glass or polypropylene or other plastic sheets makes,
It is a kind of more satisfactory selection seemingly;Certainly, patch material can also select to use cheap polydimethyl siloxane material:
So, this substrate selection is the scheme of polydimethyl siloxane material, and material is extremely cheap, makes extremely simple, seems and should also be as
It is extremely easy to popularize, promotes.
But, thing is really not so simple.
First, this polydimethyl siloxane material, that is, the material that the letter PDMS that abridges is referred to, itself are a kind of strong
Hydrophobic material, micro-channel is built on this material, if without being operated for the modified of the micro-channel surface, then,
After overall assembling is completed, that is, cover after cover plate, because the micro-channel its inner surface in structure occupies most liquid circulation
The inner surface in road, then, its strong hydrophobic property of the PDMS micro-channels inner surface, is deciding factor, it can cause class
Be similar to the aqueous solution the fine liquid stream of polar liquid by becoming very difficult, its flow resistance is big, or even general Micropump is all
It is difficult to promote, certainly, if cover plate also selects to use the PDMS material, then, problem is substantially identical, similar;
Therefore, among prior art, modification is modified particular for the micro-channel inner surface on the PDMS material, is necessary
Operation;So, this is pretty troublesome for the modified operation of PDMS micro-channel inner surfacesThat falls nor this problem, structure
Perplex into serious technical, be another problem:PDMS polymer molecules tool inside its body phase of this PDMS material substrate
There are PDMS polymer molecules inside the characteristic for diffusing to the surface, migrating automatically, this substrate body phase to diffuse to the surface, move automatically
The characteristic of shifting, will cause the state after modification by its inner surface of that micro-channel of surface modifying and decorating can not maintain foot
Enough long time, the holding time for micro-channel its inner surface state after that is surface-modified is substantially only sufficient to complete in laboratory
The time of portion's test experiments needs;In other words, by surface modification or the PDMS micro-channel inner surfaces of surface modification, its
The surface state that is formed can not be lasting after modification or after saying modification, but soon automatically tend to or say and become surface again and change
Surface state before property, returns to the strong hydrophobic surface state of that script in the shorter time, then, just think,
Such micro-fluidic chip can largely make, mass storage, be widely popularized, and answer is it is obvious that is, impossible.
Micro-channel on this PDMS material, can not pump similar to the fine liquid stream of polar solvent of the aqueous solution if not doing surface modification
Send and pass through, chip also cannot just be used;And if having done surface modification, the state after its modification can not be persistently kept again, also
Being equally can not popularization and application.
So, how to accomplish that substrate can either be made using cheap PDMS material, and table in the micro-channel can be released
Face decorating state can not persistently, chip can not largely make, largely lay in so that be widely popularized it is such a make this area it is numerous specially
The puzzlement that industry personnel are entangled with for a long time, the highly difficult problem that exactly one its obvious technology barrier can not despise.
Be present many year in the highly difficult problem, so far, not yet properly settled.
Second, the PDMS material of non-surface modification, above it is stated that, its surface is strongly hydrophobic, this strong hydrophobic
Material surface and also another problem, that is, this strong hydrophobic PDMS surfaces can adsorb large biological molecule, and
And, these adsorbed large biological molecules can also further depression further on PDMS surfaces, gradually fall into gradually deep, directly
It is trapped in heavy within the body phase of PDMS substrates, in fact, this process is partly also due to inside PDMS material body phase
Polymer molecule, which has, to be diffused to the surface, caused by travel motion;Such case, can also be explained from another angle, i.e.
Continuously from inside PDMS body phases to its diffusion into the surface, migration those polymer molecules, its result moved, be by
Gradually those are involved within the body phase of PDMS substrates by the large biological molecule of adsorption, briefly, these are inhaled
Attached large biological molecule is exactly to be swallowed up by PDMS substrate body phases;So, this PDMS substrates body phase swallows up large biological molecule
Phenomenon, the influence caused by it necessarily causes the severe deviations of all kinds of test data of experiment for being related to large biological molecule.
As described above, be the problem of PDMS substrates, its not only adsorption large biological molecule, and swallow up large biological molecule,
So, as the large biological molecule of experiment test object, its disappearance will not stop because the absorption of surface saturation, but, no
It is disconnected adsorbed, also constantly swallowed up.
On PDMS substrates in related experiment test process its body phase constantly swallow up test associated biomolecule macromolecular phenomenon, separately
It is to say that one kind, which is explained, there are substantial amounts of Minute pores in PDMS body phases, and associated biomolecule macromolecular is by after adsorption, depression
Into these Minute pores, and then swallowed up;However, inventor thinks, those can allow the air point of miniature scale
Son squeezes into the Minute pores therebetween, and being not equal to them also can directly allow that the large biological molecule of relative large scale enters, and two
Person's difference on yardstick is huge, must not make sweeping generalizations.Explanation is bypassed, in any case, the biology of object is analyzed as dependence test
Macromolecular is adsorbed by PDMS substrate micro-channels inner surface, and then is constantly swallowed up by PDMS substrate body phases, and this is known objective
The phenomenon of presence.
, can be from containment PDMS surfaces to life in order to prevent this PDMS substrate bodies relative to the effect of swallowing up of large biological molecule
The absorption of thing macromolecular is addressed, and method is chemically modified modification aiming at the PDMS material surface, for
For PDMS is the situation of substrate material, modification exactly is chemically modified to the surface of described micro-channel part, by changing
The micro-channel inner surface of modification is learned, its absorption to large biological molecule can be contained, and then avoid large biological molecule quilt
PDMS substrate body phases are swallowed up;But, or that old problem, that is, the chemical modification on PDMS material surface changes
Surface state after property can not persistently be kept, the polymer molecule inside the PDMS substrate body phases its diffuse to the surface automatically,
The process of migration, soon can become that micro-channel inner surface state being modified by surface chemical modification again script strong and dredge
Water and the state of strong adsorption large biological molecule, in other words, no matter how professionals in the field turn from side to side, the PDMS
Its micro-channel inner surface of substrate is always rapidly to strong hydrophobic surface state evolution.
So, how can either obtain that PDMS material price is extremely cheap, substrate makes extremely easy benefit, can reach again
Growth stage contains absorption process of the PDMS substrate micro-channel inner surfaces to large biological molecule, and then prevents PDMS substrate body phases
The effect of swallowing up to large biological molecule so that related chip manufactured goods are able to maintain that a prolonged enough, rational shelf-life,
It is exactly a very intractable problem.The problem makes the numerous specialties in this area as another problem addressed above, equally
Personnel are entangled with, perplexed for a long time, and the problem is equally the highly difficult problem that its obvious technology barrier can not despise.The hardly possible
Also be present many year in topic, so far, also not yet properly settled.
Third, as described above, the PDMS micro-channel inner surfaces are strongly hydrophobic, and targetedly surface chemical modification or come to the surface
Learn modification to be difficult to again persistently, therefore, actually can only still belong to effective short in the surface state after the modification of its surface or surface modification
It is used within phase;If have passed through that ofer short duration period of validity, and still by force if use, due to surface shape
State already again close to hydrophobic state, is then certainly existed than larger flow resistance using usual Micropump driving test liquid stream,
So, just test liquid can only be forced to flow to target direction flowing by increasing Micropump pump power and pumping pressure, as described above,
This PDMS material is soft, pumps test liquid stream with too high, machinery pumping pressure, causing the substrate, it enters
Bubbling, expanded, distortion, deformation, also, this high-pressure situations occur for the micro-channel that sample end includes sample introduction end near zone
Under, also easily occur the stripping between substrate and cover plate, this feelings in the sample introduction end and its micro-channel of near zone and its periphery
Under shape, sample solution flows in the crack of the appearance between the substrate and cover plate that are formed after the entrance stripping everywhere, this reality
Border causes the damage of the micro-fluidic chip;Certainly, it is not in place if surface modification or surface modification script, also result in
There is said circumstances within the of short duration usual term of validity;It is above-mentioned in the case where carrying out liquid stream driving using additional Micropump merely
The problem exists all the time.If be modified or the pre action such as surface modification as described above, not doing any surface completely,
So, the above-mentioned problem will be even more serious, even without occur micro-channel bubbling described in sample introduction end and its near zone, it is expanded,
Between distortion, deformation and substrate and cover plate the problems such as peel off, merely because the flow resistance is excessive, using high pressure Micropump also not
Test liquid stream must can be driven to be marched forward towards terminal side.
The content of the invention
The technical problems to be solved by the invention are to provide a package solution, while solving three addressed above
The a series of problem actually mutually involved together of aspect, also, the solution is a kind of new applied to building
It can especially need seven kinds paid close attention to than more typical primary tumor mark progress examination simultaneously, simultaneously for belonging to women physical examination
The micro flow control chip device of detection.
The present invention solves the technical problem by following scheme, and the device that the program is provided is a kind of to take the double of integrated architecture
Drive the co-detections of tumor markers in benign chip apparatus of coupling, it is characterised in that the structure of the device includes micro-fluidic chip, and this is micro-
The structure of fluidic chip includes the substrate and cover plate of installing bonded to each other together, and the substrate and cover plate are plate object or sheet
The channel structure via mould pressing process or etching technics formation is contained in thing, that face towards the cover plate of the substrate, bonded to each other
The substrate being installed together has been built into the micro-fluidic chip containing pipeline configuration, the locations of structures of the pipeline jointly with the cover plate
Positioned at the substrate and cover plate juncture area bonded to each other, the two ends of the pipeline respectively with the sample introduction end of the micro-fluidic chip and
Terminal is connected, and the sample introduction end is the injection end of the micro-fluidic chip sample solution, and the terminal is that the actual sample introduction of the micro-fluidic chip is surveyed
The terminal that sample solution flows in its chip during examination, the terminal is located remotely from each other with the sample introduction end, between the terminal and the sample introduction end
Distance between 3 centimetres and 10 centimetres, in the pipeline on diverse location in order or backward be equiped with working electrode and
To electrode and reference electrode, the order refers to its locations of structures of the reference electrode closer to the terminal location, described
Backward refers to the reference electrode locations of structures closer to the sample introduction end position, the working electrode by conductive electrode and
The gold size sensitive membrane for having embedded tumor markers antibody being attached on the conductive electrode is constituted, and the construction of the pipeline is presented in parallel
Construction, the pipeline in parallel construction is made up of eight lateral parallel connections, and the pipeline of the presentation parallel construction is outside it
Shape profile is similar to the profile of parallel circuit, and the quantity of the working electrode is eight, the installation position point of eight working electrodes
Not Wei Yu in eight laterals, and, the tumor markers in the sensitive membrane structure of its top layer gold size of eight working electrodes
Antibody is the eight kinds of tumor markers antibody materials that can be specifically bound to tumor markers antigen, eight kinds of antibody materials point respectively
It is not tumor markers antibody CA199, CA153, CA125, CA242, AFP, CEA, EB and β-HCG, the antigen is
The antigen of broad sense, the antibody is the antibody of broad sense, and its material of the working electrode is argent material, gold material, carbon
Column, sheet or thread, its material of the substrate is presented in material or thermal decomposition conducting polymer material, its pattern of the working electrode
Dimethyl silicone polymer material, its surface of the substrate is the surface of primary form, the surface of the primary form its be intended to refer to
Not by any surface chemical modification or the surface of the primary form of the material of any surface chemical modification, the structure of the device
Also include hinge-type fixture, the hinge-type fixture its appearance profile likeness in form hinge, the hinge-type fixture is by being mutually hinged
Two hinges and matched through a fastening screw of two hinges and one with the fastening screw and with the fastening screw
The nut for being used for fastening and hand break loose manually connected together is constituted, and two hinges of the hinge-type fixture are each with its tip phase
Mutually draw close and clamp the micro-fluidic chip, the tip is positioned in the locations of structures of the neighbouring terminal of the micro-fluidic chip,
Fixation is attached in a hinge at least in and is equiped with miniature ultrasonic transducer units, and, higher-order of oscillation electric signal is passed
Transmission cable, one end and the miniature ultrasonic transducer units of the higher-order of oscillation electric signal transmission cable link together;The hinge-type is pressed from both sides
Tool facilitates the function that the device is disassembled there is provided one;Its major function of the miniature ultrasonic transducer units is actual in micro-fluidic chip
When sample introduction is tested, the ultrasonic wave launched using it is reduced between sample solution and the inwall of its inner passage of micro-fluidic chip
Interfacial tension, can be compatible, also, filled using the sample introduction end and the terminal with the miniature ultrasonic transducer units
If the difference on the distance between position difference and its ultrasonic intensity experienced, its interface of sample introduction end described in induced synthesis
Interfacial tension difference between difference between tension force and the terminal its interfacial tension, the micro-fluidic chip two ends can be micro- at this
Pressure gap is formed between the two ends of fluidic chip, the pressure gap can drive sample solution to the end flow;This is miniature
Ultrasonic transducer its function also includes checking large biological molecule contained in sample with its ultrasonic wave launched that it is micro- at this
Absorption on its inner passage inner surface of fluidic chip, and then check the substrate of the dimethyl silicone polymer material its body phase to the life
The effect of swallowing up of thing macromolecular;It is soft and have the substrate of the dimethyl silicone polymer material of elasticity its function and include with it to ultrasound
The property that ripple absorbs strongly, is absorbed strongly to ultrasonic wave, and thereby in the micro-fluidic chip terminal between the sample introduction end
Limited short distance within realize the rapid decrement of ultrasonic intensity;And, Micropump, the Micropump is connected with the sample introduction end;Should
The function of Micropump is that the interfacial tension between the inwall of the sample solution and its inner passage of micro-fluidic chip is by the ultrasonic wave
Effect and reduce, under the increased precondition of alternate compatibility, come with the mechanicalness pumping strength of the Micropump and ultrasonic wave induction
The two ends between interfacial tension difference its driving force brought support mutually, adjust mutually, be mutually coupled, to assist
Mode with running pools the strength that one driving test liquid flows to the terminal direction flowing;Described its thickness of cover plate and substrate
Between 1.0 millimeters and 5.0 millimeters;And, ultrasonic wave damper, its profile of ultrasonic wave damper is in block, plate
Shape is bar-shaped;Its material of the ultrasonic wave damper is microcellular rubber, sponge rubber or microporous polyurethane elastomer;And, elastic force
Folder, the elastic force accompanies two clamping limbs, and the medial surface of each clamping limb is relative with the medial surface of another clamping limb, one of them
The medial surface of clamping limb is close to the sample introduction end of the micro-fluidic chip, and the medial surface of another clamping limb is close to ultrasonic wave abatement
Device, the elastic clip with its gripping strength by the sample introduction end of the micro-fluidic chip and the ultrasonic wave damper it is bonded to each other be clipped in one
Rise, the strong consumption to ultrasonic wave that the ultrasonic wave damper is brought with its material, further support in the micro-fluidic core
The piece terminal thereby further expands to the rapid decrement that ultrasonic intensity is realized within the limited short distance between the sample introduction end
Difference between its interfacial tension of big described its interfacial tension of sample introduction end and the terminal.
The tumor markers antibody is the antibody of broad sense, and the antibody of the broad sense refers to possessing antibody function or functionally similar
Can occur to combine and formed immune complex or immune compound with the various involved tumor markerses of corresponding clinic in antibody
The material of the analog of thing;The tumor markers antigen is the antigen of broad sense, and the antigen of the broad sense is referred to can be using accordingly
Antibody or be functionally similar to antibody material carry out enzyme mark detection it is various it is clinical involved the need for differentiate, the tumor-marker of detection
Thing.
Described miniature ultrasonic transducer units can certainly be all installed in two hinges;But, only installing one is micro-
Type ultrasonic transducer is dealt with enough to be used.
The word of hinge one art-recognized meanings of itself are known.
The word of Micropump one art-recognized meanings of itself are known for the professional in micro-fluidic chip field.
The Micropump both can be the Micropump of external form;The Micropump can also be done into or say inside the embedded micro-fluidic chip
The Micropump of the built in version of its sample introduction end structure position or the sample introduction end Near-neighbor Structure position.
The Micropump such as miniature piezoelectric pump, miniature peristaltic pump or miniature air driven pump.
The gold size sensitive membrane is to be sufficiently mixed chitosan gold size solution and tumor markers antibody-solutions uniformly, uses point sample instrument
Point sample is coated on specified structure position, and forms its drying and forming-film.Tumor markers antibody in the gold size sensitive membrane is equal
The tumor markers antibody marked for horseradish peroxidase or glucose oxidase, the gold size sensitive membrane has been included as fixing
Above-mentioned each tumor markers antibody and introduce complementary medium therein, the complementary medium for example chitosan, cellulose acetate,
Gelatin is therein a kind of or their mixture.
The pipeline in the microfluidic chip structure includes the lateral, and its internal diameter size may each be arbitrarily selected
Size, still, for less with the consideration in terms of prepare liquid sample and reduction reagent loss, the pipeline includes described as far as possible
The passage of the preferred capillary level of lateral, the passage of the capillary level implies that the interior of its internal diameter and the capillary on ordinary meaning
The suitable passage in footpath.The shape of cross section of its inner passage of capillary can be arbitrary shape, the shape of cross section example
Such as circular, oval, square, rectangle, bar shaped, naturally it is also possible to be arbitrarily the presence of the linear of bending, also, the hair
The interior shape of tubule is with the extension of pipeline, and the shape of cross section of different parts can also allow to be different shapes.Only with regard to hair
For the word of tubule one, its art-recognized meanings is known.
What is be related in structure is the electrode of microsize to electrode and reference electrode, and its electrode shape may each be any choosing
Fixed shape, the arbitrarily selected shape such as column, sheet, strip or thread etc..It is described to electrode and the ginseng
Art-recognized meanings than the electrode vocabulary of itself are known.
It is public only for professional of the word of ultrasonic transducer one art-recognized meanings of itself for ultrasonic technology field
Know.
Various sizes, variously-shaped ultrasonic transducer are commercially available;Commercially available miniature ultrasonic transducer units its sizes can be with
It is small to the magnitude only calculated with millimeter.
Only with regard to miniature ultrasonic transducer units its technique for fixing on general industry application solid body surface itself and
Speech, is known general technology for the professional in ultrasonic technology field.This case is not to this expansion superfluous words.
Only with regard to naked PDMS substrates itself micro-channel molding or lithographic technique for, be open-and-shut known technology.
The industrial products market of involved its all size of higher-order of oscillation electric signal transmission cable is on sale.
The structure of the device can also include higher-order of oscillation electric signal generator;Its is another for the higher-order of oscillation electric signal transmission cable
One end can be connected with the higher-order of oscillation electric signal generator.
The involved higher-order of oscillation electric signal generator technology of itself, for the professional in ultrasonic technology field, be
It is simple and known;The higher-order of oscillation electric signal generator can be customized to ultrasonic instrument specialized factory.
The preferred scope of its specified ultrasonic wave transmission power of the miniature ultrasonic transducer units be between 5 milliwatts and 5000 milliwatts it
Between;The preferred scope of the frequency of its ultrasonic wave operationally launched of the miniature ultrasonic transducer units be between 100KHz with
Between 12MHz.
This case device can further include some annexes, the annex such as multiple tracks electrochemical workstation etc., institute certainly
The art-recognized meanings for stating multiple tracks electrochemical workstation are known.Each working electrode for being related in this case microfluidic chip structure and
, can be respectively via corresponding special the corresponding interface got lines crossed with the multiple tracks electrochemical workstation to electrode and reference electrode etc.
Coupled.It is described that special to get lines crossed be for each the corresponding interface of each electrode and the multiple tracks electrochemical workstation is carried out into phase
The private cable being mutually coupled with.The micro-fluidic chip in this case device, its structure can also include micro-valve, the number of the micro-valve
Amount is not limited, according to actual needs, and the micro-valve can be installed in any required position installed in the microfluidic chip structure;
The word of micro-valve one is for the professional of micro fluidic chip technical field, and the art-recognized meanings of itself are known;The micro-valve
The manufacturing technology of itself and the use of technology is also known;The component that the micro-valve is not required.
The diameter of the working electrode can allow to be that any setting is easily installed the suitable diameter used, it is however recommended to
Or say preferred its scope of the diameter between 0.1 micron to 2000 microns;The length of the working electrode can permit
Permitted to be that any setting is easily installed the length used, it is however recommended to or to say preferred its scope of the length be at 1 micron
To between 15000 microns.
The gold size for being installed in the working electrode surface layer by spraying or point sample instrument point sample or the coating of other appropriate process is quick
Feel film, its thicknesses of layers can allow be any setting treat sample measuring liquid occur electrical signals response thickness, still, push away
Preferred thickness is between 10 nanometers and 200 nanometers in other words for the thickness recommended.
The cover plate in chip structure, its material can allow to be any electrical insulating property material, for example:Polypropylene, glass
Glass, polymethyl methacrylate, dimethyl silicone polymer, etc., in order to make smaller size of micro-fluidic chip, such as do
Realized into the micro-fluidic chip of only 2.0 centimetres to 3.0 centimetres of super-small of length, and in the extremely short distance to ultrasonic wave
Extremely fast decay, can preferably dimethyl silicone polymer be used as cover plate.Certainly, selected on large-sized micro-fluidic chip
It is used as the cover plate using dimethyl silicone polymer, is also that this case technical scheme is allowed.
Described its thickness of cover plate and substrate can allow be any setting be easy to assembling thickness, the thickness of recommendation or say preferably
Thickness be between 1.0 millimeters and 5.0 millimeters.Less thickness is conducive to saving material.
Described its size of ultrasonic wave damper is not limited, and described its length of ultrasonic wave damper, width, thickness may each be according to need
The arbitrary size to be set.
It is known in field of rubber technology only for the word of microcellular rubber one art-recognized meanings of itself.
The microcellular rubber is commercially available.
It is known in field of rubber technology only for the word of sponge rubber one art-recognized meanings of itself.
The sponge rubber is commercially available.
It is known in technical field of macromolecules only for the word of microporous polyurethane elastomer one art-recognized meanings of itself.
The polyurethane micropore elastomer material is commercially available.
The microcellular rubber preferred microporous silicon rubber or micropore fluorubber.
It is known in field of rubber technology only for the word of micropore silicon rubber one art-recognized meanings of itself.
The microporous silicon Rubber market is on sale.
It is known in field of rubber technology only for the word of micropore fluorubber one art-recognized meanings of itself.
The micropore fluorubber is commercially available.
The word of elastic clip one art-recognized meanings of itself are known.
The elastic clip is commercially available.
The application method of this case micro-fluidic chip:
This case is flowed with dual drive coupling operating mode driving liquid stream in the capillary channel of eight channel microfluidic chip,
Eight kinds of classifiable tumor mark diagnostic antigens are detected respectively using eight passage electrochemical analytical instruments.
The specific detection of this case micro-fluidic chip is as follows using step:
1st, blood serum sample liquid is added in micro-pipe road, under dual drive coupling operating mode driving, various tumor markerses
The tumor-marker for the corresponding horseradish peroxidase-labeled that antigen molecule is embedded by gold size sensitive membrane on electrode surface in each passage
Thing antibody capture.
2nd, the tumor markers antigen in the tumor markers antibody and blood serum sample of horseradish peroxidase-labeled forms immune multiple
Compound.
3rd, using multi-channel electrochemical analyzer, the electron mediators such as catechol are added, using the above-mentioned reaction of amperometric detection
Caused curent change, is derived from the species and content of various analytes.
4th, result is subjected to comprehensive analysis, comprehensive diagnos is carried out to tumor markers antigen.
It is an advantage of the invention that its close position positions the hinge-type fixture in the terminal of the micro-fluidic chip, with
The miniature ultrasonic transducer units installed, the low-power launched using it, high-frequency band are attached in its hinge of the hinge-type fixture
Ultrasonic wave so that without surface chemical modification or surface chemical modification strong hydrophobic micro-fluidic chip internal pipeline its
Compatibility between tube wall and the test object aqueous solution is significantly increased, and this passes through possible there is provided a reality for test liquid stream
Property;Meanwhile, using its strong absorbability to ultrasonic wave of dimethyl silicone polymer substrate, in shorter distance, also
Be, from the terminal to the very short distance of only several centimeters yardsticks the sample introduction end in, reach the quick of ultrasonic intensity
Successively decrease, interfacial tension between the difference of the interfacial tension, the two ends is thereby caused at the two ends of the micro-fluidic chip
Difference can cause a kind of driving force, this kind because caused by interfacial tension difference its function of driving force be to drive test liquid stream to exist
Originally flowed in strong hydrophobic capillary channel to the terminal direction;And the simultaneous Micropump in structure, its function
It is that the interfacial tension between the inwall of the sample solution and its inner passage of micro-fluidic chip is dropped by the ul-trasonic irradiation
Under low, the alternate increased precondition of compatibility, described two induced with the ultrasonic wave are come with the mechanicalness pumping strength of the Micropump
Interfacial tension difference its driving force brought between end is supported mutually, adjusts mutually, is mutually coupled, with Collaboration
Mode pools the strength that one driving test liquid flows to the terminal direction flowing;The presence of the Micropump so that the miniature ultrasonic
Its ultrasonic wave emissive porwer of wave transducer can be allowed to appropriate reduction, and this in detection object for containing ultrasonic wave sensitive composition
Situation is particularly suitable for;And by the presence of the ultrasonic transducer and its radiated ultrasonic wave, it is possible to increase alternate compatibility, drop
Low interfacial tension, and the two ends interfacial tension difference special driving force that it is brought is provided, then, in this case,
Its flow resistance in the micro-channel of test liquid stream is greatly reduced, and correspondingly, its running resistance of the Micropump is greatly reduced, so,
The Micropump just can be to carry out the pumping work for the sample solution than relatively low pumping pressure, due to mechanical pumping
Pressure is greatly reduced, therefore, in such a situation, be just not susceptible to because sample introduction terminal tool pumping pressure it is excessive caused by
Between the micro-channel bubbling of the sample introduction end and its near zone, expansion, deformation, distortion and the region substrate and cover plate
The problems such as stripping etc.;This case dual drive couples the scheme of running and adds the manipulation acted for the sample fluid flow
Property, it can allow for coming using the multiple indexs of ultrasonic intensity, ultrasonic frequency, Micropump pump power, Micropump pumping pressure etc.
Flow rate, flowing action for the flowing include flow forward or suspend flowing or accelerate flowing etc. flowing action progress many
Parameter is accurately manipulated;By the scheme of this case dual drive coupling running, entirely without must be to the base of the dimethyl silicone polymer material
Any surface chemical modification of its micro-channel of piece etc. relevant surfaces progress or surface chemical modification, have altogether dispensed with the surface chemistry
Modification or the laborious procedures of surface chemical modification;On the other hand, the ultrasonic wave of the low-power, high-frequency band, additionally it is possible to containment examination
The absorption of large biological molecule in sample on literalness naked its inner surface of pipeline of dimethyl silicone polymer substrate, and then contain
The swallow up effect of its body phase of dimethyl silicone polymer substrate to the large biological molecule;The antigen, antibody and antigen are with resisting
The Reversible binding thing of body is all the type for belonging to described large biological molecule certainly;Due to described suction-operated and described gulp down
Do not act on and effectively being contained, therefore, dependence test result will be better able to objectively reflect actual conditions;The low-power, height
The effect of frequent section ultrasonic wave, also include facilitating the Reversible binding between antigen, antibody react certainly quickly reaches, and this causes
Dependence test operation can be with than the completion of faster speed.
As described above, the presence of the Micropump so that its ultrasonic wave emissive porwer of the miniature ultrasonic transducer units can be allowed to fit
Degree reduction, then, the feature helps to protect its sensitive coating of the working electrode, is allowed to from ultrasound injury.
Based on this case scheme, repaiied completely without the surface chemistry carried out for the dimethyl silicone polymer substrate its relevant surfaces
Decorations or surface chemical modification operation, therefore, this surface chemical modification layer or surface chemical modification layer not need to exist,
So, its body phase interior polymer molecule of the dimethyl silicone polymer substrate is constantly diffused to the surface, migrated caused by it automatically
Damaging influence to surface chemical modification layer or surface chemical modification layer is also just not present.
The technical scheme of this case has dissolved its application related one to dimethyl silicone polymer substrate addressed above totally
Row technical barrier.Based on this case scheme, the polydimethyl siloxane material of this kind very cheap and easily processing and fabricating just has can
Can in the micro-fluidic chip its prepare, production, using etc. field play bigger effect.
The miniature ultrasonic transducer units have been installed in fixation in the hinge-type fixture its hinge in this case structure, and the structure is provided
One facilitates the function that the device is disassembled, in this way, the hinge-type fixture is together with appended miniature ultrasonic transducer units in its hinge
Just easily it can be mutually disengaged with the micro-fluidic chip, then, the component that the part can freely depart from just can circulate benignly ground
Reuse many times;The architectural feature is conducive to saving the use cost of the device.
This case its installation position is located at the ultrasonic wave damper at the sample introduction end, from its terminal of this case micro-fluidic chip to entering
Said on the sport technique segment that ultrasonic intensity rapid decrement is realized in the such short distance in sample end, the ultrasonic wave damper its function as
The size expansion device of micro-fluidic chip, in other words, the ultrasonic wave damper its function as significantly extend it is micro-fluidic
Its terminal of chip the distance between to sample introduction end, be the equal of from length of several centimetres of the extension of script to more than ten centimetres or
Twenties centimetres of length or longer length, so so that described terminal is strong to the ultrasonic wave between sample introduction end in short distance
The sport technique segment of degree rapid decrement can relatively easily be reached, also, the size expansion device namely the ultrasonic wave damper its
Installation and removal are all very convenient, it is important that it can also be reused.
Its presence of the ultrasonic wave damper in this case device, further reduce to its pumping pressure of Micropump and pump power according to
Rely;Correspondingly, its running resistance of the Micropump is further greatly reduced, so, and the Micropump just can be with lower pumping
Pressure carries out the pumping work for the sample solution, because mechanical pumping pressure is further greatly reduced,
Therefore, in such a situation, just be less susceptible to occur because sample introduction terminal tool pumping pressure it is excessive caused by the sample introduction end and
The problems such as stripping between the micro-channel bubbling of its near zone, expansion, deformation, distortion and the region substrate and cover plate etc.;
The scheme of this case dual drive coupling running is further added for the test liquid due to its presence of the ultrasonic wave damper
The handling of flowing action is flowed, wherein, the factor that can adjust includes ultrasonic intensity, ultrasonic frequency, Micropump pump power, micro-
Pump pumps pressure, and, the selection and use of ultrasonic wave damper material, the selection of ultrasonic wave damper block size and use,
The selection of the size of its corresponding ultrasonic wave abatement ability of ultrasonic wave damper and use etc., this kind of many adjustable factor it is same
When exist, can more operation indexs, further, more it is multifactor adjustably for the flowing flow rate, stream
Action includes flow forward or pause flowing or accelerates flowing etc. flowing action to carry out the accurate manipulation under more parameters.
The framework of its large-scale integrated of this case micro-fluidic chip, determines it among actual test application, to Serum samples
The need for measure smaller, this helps to reduce the body and mind damage of related subject.
Brief description of the drawings
Fig. 1 is its rough outside side view of this case micro flow control chip device.
In figure, 1 is hinge-type fixture, and 2 indicate linkwork positions, and 3 be fastening screw, and 4 be higher-order of oscillation telecommunication
Number transmission cable, 5 be miniature ultrasonic transducer units, and 6,11 be two different hinges of locations of structures respectively, and 7 be cover plate, 8
It is substrate, 9 be sample introduction end, and 10 be terminal, and 12 be nut, and 13 be infusion tube, and 14 be Micropump;The conjunction in legend
Page clamp structure is only the legend structure of signal, and actual its structure of the hinge-type fixture is not limited to the legend hinge-type fixture knot
Structure;Arrow in legend indicate the micro-fluidic chip its in actual motion, by pressure at two ends difference drive, its test liquid stream
Flow direction.The ultrasonic wave damper is depicted without in legend;Also the elastic clip is depicted without in legend.
Embodiment
In this case that Fig. 1 is shown embodiment, its main points of the example are that the structure of the device includes micro-fluidic chip, should
The structure of micro-fluidic chip includes the substrate 8 and cover plate 7 of installing bonded to each other together, and the substrate 8 and cover plate 7 are plate
Contain the conduit via mould pressing process or etching technics formation in shape thing or tablet, that face towards the cover plate 7 of the substrate 8
Structure, substrate 8 bonded to each other being installed together has been built into the micro-fluidic chip containing pipeline configuration jointly with the cover plate 7,
The locations of structures of the pipeline is located at the substrate 8 and the cover plate 7 juncture area bonded to each other, and the two ends of the pipeline are micro- with this respectively
The sample introduction end 9 of fluidic chip and terminal 10 are connected, and the sample introduction end 9 is the injection end of the micro-fluidic chip sample solution, should
Terminal 10 is the terminal of sample solution flowing in its chip when the actual sample introduction of the micro-fluidic chip is tested, the terminal 10 and the sample introduction
End 9 is located remotely from each other, and the distance between the terminal 10 and the sample introduction end 9 are between 3 centimetres and 10 centimetres, in the pipeline
On diverse location in order or backward is equiped with working electrode and to electrode and reference electrode, the order refers to the ginseng
Than its locations of structures of electrode closer to the position of terminal 10, the backward refer to the reference electrode locations of structures closer to
The position of sample introduction end 9, the working electrode is by conductive electrode and is attached on the conductive electrode and has embedded tumour mark
The gold size sensitive membrane of will thing antibody is constituted, and parallel construction is presented in the construction of the pipeline, and the pipeline in parallel construction is by eight points
Branch pipe(tube) parallel connection is constituted, and its appearance profile of the pipeline of the presentation parallel construction is similar to the profile of parallel circuit, the work
The quantity for making electrode is eight, and the installation position of eight working electrodes is located in eight laterals respectively, and, should
Tumor markers antibody in eight sensitive membrane structures of its top layer gold size of working electrode is respectively can be special to tumor markers antigen
Property combine eight kinds of tumor markers antibody materials, eight kinds of antibody materials be respectively tumor markers antibody CA199, CA153,
CA125, CA242, AFP, CEA, EB and β-HCG, the antigen are the antigen of broad sense, and the antibody is the antibody of broad sense,
Its material of the working electrode is argent material, gold material, carbon material or thermal decomposition conducting polymer material, the work
Make electrode its pattern and column, sheet or thread is presented, its material of the substrate 8 is dimethyl silicone polymer material, the substrate 8
Its surface is the surface of primary form, the surface of the primary form its be intended to refer to not by any surface chemical modification or appoint
The surface of the primary form of the material of what surface chemical modification, the structure of the device also includes hinge-type fixture 1, the hinge-type
Fixture 1 its appearance profile likeness in form hinge, the hinge-type fixture 1 is by two hinges 6,11 for being mutually hinged and passes through
A fastening screw 3 for wearing two hinges 6,11 and one matched with the fastening screw 3 and with 3 sets of the fastening screw
The nut 12 for being used for fastening and hand break loose manually being connected together is constituted, and the nut 12 is employed in this example to be easier
Manually operated butterfly nut, butterfly nut is commercially available, and two hinges 6,11 of the hinge-type fixture 1 are each with its tip
Mutually draw close and clamp the micro-fluidic chip, the tip is positioned at the structure position of the neighbouring terminal 10 of the micro-fluidic chip
Put, fixation is attached in a hinge at least in and is equiped with miniature ultrasonic transducer units, this example, this is miniature super
Acoustic wave transducer 5 is to attach to be fixed in hinge 6, and, higher-order of oscillation electric signal transmission cable 4, the higher-order of oscillation telecommunication
One end of number transmission cable 4 links together with the miniature ultrasonic transducer units 5;The hinge-type fixture 1 provides a convenience
The function that the device is disassembled;Its major function of the miniature ultrasonic transducer units 5 is the profit in micro-fluidic chip actual sample introduction test
The ultrasonic wave launched with it reduces the interfacial tension between sample solution and the inwall of its inner passage of micro-fluidic chip, makes
It can be compatible, also, utilizes the sample introduction end 9 and the terminal 10 and the installation position of miniature ultrasonic transducer units 5
The distance between difference on difference and its ultrasonic intensity experienced, its interfacial tension of sample introduction end 9 described in induced synthesis
With the difference between described its interfacial tension of terminal 10, the interfacial tension difference meeting between the micro-fluidic chip two ends 9,10
Pressure gap is formed between the two ends 9,10 of the micro-fluidic chip, the pressure gap can drive sample solution to the terminal
Flow in 10 directions;Its function of the miniature ultrasonic transducer units 5 also includes checking with its ultrasonic wave launched contained in sample
Large biological molecule its absorption on the micro-fluidic chip its inner passage inner surface, and then check the dimethyl silicone polymer material
Swallow up effect of its body phase of the substrate 8 of matter to the large biological molecule;The base of the dimethyl silicone polymer material that is soft and having elasticity
Piece 8 its function includes, with its property to the strong absorption of ultrasonic wave, ultrasonic wave being absorbed strongly, and thereby micro-fluidic at this
The chip terminal 10 is to the rapid decrement that ultrasonic intensity is realized within the limited short distance between the sample introduction end 9;And,
Micropump 14, the Micropump 14 is connected with the sample introduction end 9;The function of the Micropump 14 is, in the sample solution and the micro-fluidic core
Interfacial tension between the inwall of its inner passage of piece is reduced by the ul-trasonic irradiation, the increased precondition of alternate compatibility
Under, it is poor with the interfacial tension that the mechanicalness pumping strength of the Micropump 14 is come between the two ends 9,10 of ultrasonic wave induction
Its different driving force brought is supported mutually, adjusts mutually, is mutually coupled, and one driving is pooled in the way of Collaboration
Test liquid flows to the strength of the direction of terminal 10 flowing;Its thickness of the cover plate 7 and substrate 8 is between 1.0 millimeters and 5.0
Between millimeter;And, ultrasonic wave damper, its profile of ultrasonic wave damper is in block, tabular or bar-shaped;The ultrasonic wave disappears
It is microcellular rubber, sponge rubber or microporous polyurethane elastomer to subtract device its material;And, elastic clip, the elastic force accompanies two folders
Gripping arm, the medial surface of each clamping limb is relative with the medial surface of another clamping limb, and the medial surface of one of clamping limb is close to
The sample introduction end 9 of the micro-fluidic chip, the medial surface of another clamping limb is close to the ultrasonic wave damper, and the elastic clip is pressed from both sides with it
Holding force amount by the sample introduction end 9 of the micro-fluidic chip and the ultrasonic wave damper it is bonded to each other clip together, the ultrasonic wave damper
The strong consumption to ultrasonic wave brought with its material, further supports that the terminal 10 is entered to this in the micro-fluidic chip
The rapid decrement of ultrasonic intensity is realized within limited short distance between sample end 9, and thereby further expands the sample introduction end
Difference between 9 its interfacial tension and the terminal 10 its interfacial tension.
The ultrasonic wave damper is depicted without in legend;Also the elastic clip is depicted without in legend.
Arrow in legend indicate the micro-fluidic chip its in actual motion, by two ends 9,10 pressure differentials drive, its
The flow direction of test liquid stream.
Fig. 1 is depicted without the associate members such as the higher-order of oscillation electric signal generator.
The Micropump 14 can be customized to specialized factory.
Its connected mode with various micro-fluidic chip of various Micropump is known.
Described its main body of hinge-type fixture can simply be changed a social system using commercially available hinge;It can also be customized to hardware processing factory.
Involved miniature ultrasonic transducer units 5 are commercially available;It can also be customized to ultrasonic transducer producer.
Involved higher-order of oscillation electric signal transmission cable 4 is commercially available;Can also be to ultrasonic transducer producer or cable special manufacturer
Family's customization.
Involved higher-order of oscillation electric signal generator market has the product close to needs commercially available;It can also be customized to relevant manufacturers.
Its inner passage of the micro-fluidic chip involved by this case is the pipeline of hydrophobic capillary form.
The Micropump both can be the Micropump of external form;The Micropump can also be done into or say inside the embedded micro-fluidic chip
The Micropump of the built in version of its sample introduction end structure position or the sample introduction end Near-neighbor Structure position, its basic structure key element and external form
Micropump it is identical.Micropump in legend is the Micropump of external form.
The multiple tracks electrochemical workstation is commercially available;The multiple tracks electrochemical workstation can also be according to specific needs to related special
Industry producer customizes.
In view of this case pipeline of the presentation parallel construction its form that related text expresses that it is described above is clear enough
It is clear, the concrete form of the pipeline in this kind of micro-fluidic chip of this case is no longer specifically illustrating in this case embodiment.
Antibody described in this case refers to the antibody of broad sense;Antigen described in this case refers to the antigen of broad sense;It is immunized described in this case multiple
Compound refers to the immune complex of broad sense.
Claims (10)
1. the co-detections of tumor markers in benign chip apparatus for taking the dual drive of integrated architecture to couple, it is characterised in that the knot of the device
Structure includes micro-fluidic chip, and the structure of the micro-fluidic chip includes the substrate and cover plate of installing bonded to each other together, the substrate
It is plate object or tablet with cover plate, that face towards the cover plate of the substrate is contained via mould pressing process or etching technics shape
Into channel structure, substrate bonded to each other being installed together has been built into containing the micro-fluidic of pipeline configuration jointly with the cover plate
Chip, the locations of structures of the pipeline is located at the substrate and cover plate juncture area bonded to each other, the two ends of the pipeline respectively with this
The sample introduction end of micro-fluidic chip and terminal connection, the sample introduction end is the injection end of the micro-fluidic chip sample solution, and the terminal is
The terminal that sample solution flows in its chip when the actual sample introduction of the micro-fluidic chip is tested, the terminal is located remotely from each other with the sample introduction end,
The distance between the terminal and the sample introduction end between 3 centimetres and 10 centimetres, in the pipeline on diverse location in order or
Backward is equiped with working electrode and to electrode and reference electrode, and the order refers to the reference electrode its locations of structures more
Close to the terminal location, the backward refers to the reference electrode locations of structures closer to the sample introduction end position, the work
Make electrode by conductive electrode and the gold size sensitive membrane structure for having embedded tumor markers antibody being attached on the conductive electrode
Into parallel construction is presented in the construction of the pipeline, and the pipeline in parallel construction is made up of eight lateral parallel connections, described to be in
Its appearance profile of the existing pipeline of parallel construction is similar to the profile of parallel circuit, and the quantity of the working electrode is eight, should
The installation position of eight working electrodes is located in eight laterals respectively, and, its top layer gold size of eight working electrodes
Tumor markers antibody in sensitive membrane structure is the eight kinds of tumor markerses that can be specifically bound to tumor markers antigen respectively
Antibody materials, eight kinds of antibody materials be respectively tumor markers antibody CA199, CA153, CA125, CA242, AFP, CEA,
EB and β-HCG, the antigen is the antigen of broad sense, and the antibody is the antibody of broad sense, and its material of the working electrode is gold
The silver-colored material of category, gold material, carbon material or thermal decomposition conducting polymer material, the working electrode its pattern presentation column,
Sheet is thread, and its material of the substrate is dimethyl silicone polymer material, and its surface of the substrate is the surface of primary form, the original
The surface of raw form its be intended to refer to not by any surface chemical modification or the original of the material of any surface chemical modification
The surface of raw form, the structure of the device also includes hinge-type fixture, hinge-type fixture its appearance profile likeness in form hinge, the conjunction
Page fixture by two hinges being mutually hinged and through a fastening screw of two hinges and one with should
The nut for being used for fastening and hand break loose manually that fastening screw is matched and connected together with the fastening screw is constituted, the hinge-type
Two hinges of fixture are respectively mutually drawn close with its tip and clamp the micro-fluidic chip, and the tip is positioned at the micro-fluidic chip
Fixation, which is attached, in the locations of structures of the neighbouring terminal, in a hinge at least in is equiped with miniature ultrasonic transducing
Device, and, higher-order of oscillation electric signal transmission cable, one end and the miniature ultrasonic of the higher-order of oscillation electric signal transmission cable are changed
Energy device links together;The hinge-type fixture facilitates the function that the device is disassembled there is provided one;The miniature ultrasonic transducer units its
Major function is that in the test of micro-fluidic chip actual sample introduction, the ultrasonic wave launched using it reduces sample solution and the miniflow
The interfacial tension between the inwall of its inner passage of chip is controlled, can be compatible, also, utilize the sample introduction end and described
Difference in the distance between terminal and the miniature ultrasonic transducer units installation position difference and its ultrasonic intensity experienced
It is different, the difference between its interfacial tension of sample introduction end described in induced synthesis and the terminal its interfacial tension, the micro-fluidic chip this two
Interfacial tension difference between end can form pressure gap between the two ends of the micro-fluidic chip, and the pressure gap can drive examination
Sample solution is to the end flow;Its function of the miniature ultrasonic transducer units also includes checking in sample with its ultrasonic wave launched
Its absorption on the micro-fluidic chip its inner passage inner surface of contained large biological molecule, and then check the poly dimethyl silicon
Swallow up effect of its body phase of the substrate of oxygen alkane material to the large biological molecule;The dimethyl silicone polymer material that is soft and having elasticity
Substrate its function include, with its property to the strong absorption of ultrasonic wave, ultrasonic wave being absorbed strongly, and thereby in the miniflow
Control chip terminal is to the rapid decrement that ultrasonic intensity is realized within the limited short distance between the sample introduction end;And, Micropump,
The Micropump is connected with the sample introduction end;The function of the Micropump is, the inwall in the sample solution Yu its inner passage of micro-fluidic chip
Between interfacial tension reduced by the ul-trasonic irradiation, under the increased precondition of alternate compatibility, with the mechanicalness of the Micropump
Interfacial tension difference its driving force brought between the two ends that are induced come the ultrasonic wave of pumping strength supports mutually,
Adjust mutually, be mutually coupled, the power that one driving test liquid flows to the terminal direction flowing is pooled in the way of Collaboration
Amount;Described its thickness of cover plate and substrate is between 1.0 millimeters and 5.0 millimeters;And, ultrasonic wave damper, the ultrasound
Its profile of ripple damper is in block, tabular or bar-shaped;Its material of the ultrasonic wave damper is microcellular rubber, sponge rubber or poly- ammonia
Ester micro-pore elastomer;And, elastic clip, the elastic force accompanies two clamping limbs, and the medial surface of each clamping limb is clamped with another
The medial surface of arm is relative, and the medial surface of one of clamping limb is close to the sample introduction end of the micro-fluidic chip, another clamping limb
Medial surface is close to the ultrasonic wave damper, and the elastic clip is with its gripping strength by the sample introduction end of the micro-fluidic chip and the ultrasonic wave
Damper is clipped together bonded to each otherly, the strong consumption to ultrasonic wave that the ultrasonic wave damper is brought with its material,
Further support to realize ultrasonic intensity within micro-fluidic chip terminal to the limited short distance between the sample introduction end
Rapid decrement, and thereby further expand the difference between described its interfacial tension of sample introduction end and the terminal its interfacial tension.
2. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, it is capillary channel that the pipeline, which includes the lateral,.
3. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
Be characterised by, the thermal decomposition conducting polymer be by polyimides or polyacrylonitrile be heat-treated through anoxybiotic after the electric conductivity material that is formed
Material.
4. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
Be characterised by, the width or diameter of the working electrode between 0.1 micron to 2000 microns, and, work electricity
The length of pole is between 1 micron to 15000 microns.
5. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, the thickness of the gold size sensitive membrane is between 10 nanometers and 200 nanometers.
6. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, its material of the cover plate in structure is dimethyl silicone polymer material.
7. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, the Micropump is miniature piezoelectric pump, miniature peristaltic pump or miniature air driven pump.
8. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, the microcellular rubber is micropore silicon rubber or micropore fluorubber.
9. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, the structure of the micro fluidic device also includes higher-order of oscillation electric signal generator, the higher-order of oscillation electric signal transmission electricity
Its other end of cable is connected with the higher-order of oscillation electric signal generator.
10. the co-detections of tumor markers in benign chip apparatus that the dual drive according to claim 1 for taking integrated architecture is coupled, its
It is characterised by, its specified ultrasonic wave transmission power of the miniature ultrasonic transducer units is between 5 milliwatts and 5000 milliwatts, and this is micro-
The frequency of its ultrasonic wave operationally launched of type ultrasonic transducer is between 100KHz and 12MHz.
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Application publication date: 20171020 |