WO2006025358A1 - 化学センサ装置用の検出子およびその利用 - Google Patents
化学センサ装置用の検出子およびその利用 Download PDFInfo
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- WO2006025358A1 WO2006025358A1 PCT/JP2005/015715 JP2005015715W WO2006025358A1 WO 2006025358 A1 WO2006025358 A1 WO 2006025358A1 JP 2005015715 W JP2005015715 W JP 2005015715W WO 2006025358 A1 WO2006025358 A1 WO 2006025358A1
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- adsorption layer
- sensor device
- chemical sensor
- substance
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
- G01N21/552—Attenuated total reflection
- G01N21/553—Attenuated total reflection and using surface plasmons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/405—Concentrating samples by adsorption or absorption
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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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N2021/7769—Measurement method of reaction-produced change in sensor
- G01N2021/7776—Index
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors
Definitions
- the present invention relates to a detector for a chemical sensor device used for detecting a trace amount of a chemical substance or biomolecule and its use, in particular, using a hydroxyapatite and a derivative thereof,
- the present invention relates to a detector for an energy sensor device with improved adsorption efficiency and its use.
- the QCM method is a technique for detecting chemical substances and biological substances that apply the microbalance principle using a quartz resonator.
- the changing force of the oscillation frequency of the quartz crystal in this type also detects and quantifies the adsorption / desorption of the sample components on the working electrode surface.
- a crystal resonator 100 is formed by depositing metal electrodes 102 on the front and back surfaces of a thin crystal plate 101, and chemical substances and biomolecules are formed on the metal electrodes 102.
- the weight of the deposit and the change in frequency are proportional.
- the frequency corresponding to the weight per unit surface area of the substance existing on the surface of the metal electrode 102 is reduced. A shift will occur. By using this frequency shift phenomenon as an index, minute chemical substances and biomolecules contained in the medium can be detected.
- the SPR method is a technique for detecting a trace chemical substance using an optical technique.
- the metal thin film is irradiated with light and the reflected light is monitored, the change in the refractive index on the metal thin film caused by the chemical substance adhering to the metal thin film is detected, and trace chemical substances are detected.
- Chemical sensor devices using the SPR method are applied in the bio, environmental, and industrial fields, and are used for interaction analysis of biomolecules immobilized on the surface, antigen-antibody reaction monitoring, sugar content monitoring, etc. (For example, see Patent Document 2).
- the present invention has been made in view of the above problems, and an object thereof is to provide a detector for an energy sensor device with improved detection sensitivity and use thereof.
- the present inventors coat the surface of a detector for a chemical sensor device with hydroxyapatite or element-replaced apatite in which a part of the constituent elements is substituted. As a result, it was found that the detection sensitivity of the detector can be remarkably improved, and the present invention has been completed. That is, the present invention includes the following inventions (1) to (15) as industrially useful substances.
- a detector for a chemical sensor device that detects a measurement target substance by adsorbing the measurement target substance contained in a medium to the detection surface, wherein the detector is a measurement
- a detector comprising an adsorption layer containing element-substituted apatite in which a part of elements in hydroxyapatite is substituted on the detection surface for detecting a target substance.
- biocompatible element-substituted apatite is an element-substituted apatite in which a part of elements in the nodyl and adroxyapatite is substituted with Mg.
- a non-adsorption layer is provided on the surface of the adsorption layer, and the non-adsorption layer has an opening for bringing the substance to be measured in the medium into contact with the adsorption layer.
- the detector according to any one of (1) to (7).
- the adsorption layer further includes a specific binding substance for selectively adsorbing the measurement target substance.
- the adsorption layer is formed by a laser ablation method (1) to (9
- a detector for a chemical sensor device that detects the measurement target substance by adsorbing the measurement target substance contained in the medium to the detection surface, wherein the detector is the measurement target substance.
- the adsorption layer may be formed by heat treatment or sintering treatment during or after formation.
- a chemical sensor device comprising the detector according to any one of (1) to (14).
- the detector of the present invention since the detection surface of the detector is provided with hydroxyapatite or element-substituted apatite having excellent fine particle adsorptivity, the detector for a conventional chemical sensor device is provided. Compared with this, the detection sensitivity of the measurement target substance contained in the medium can be remarkably improved. Therefore, the measurement target substance contained in the medium and the interaction between the measurement target substances can be detected with high sensitivity. In other words, lower concentrations of chemical substances can be detected.
- the use of the detector according to the present invention can provide an energy sensor device with improved detection sensitivity.
- FIG. 1 (a) is a top view of the configuration of the detector according to the present embodiment as viewed from above
- Fig. 1 (b) is a diagram.
- FIG. 2 is a cross-sectional view of a detector 1 (a).
- FIG. 2 (a) is a top view of the configuration of the detector according to the present embodiment as viewed upward.
- FIG. 2 (b) FIG. FIG.
- FIG. 3 (a) is a top view of the configuration of another detector according to the present embodiment as viewed from above.
- FIG. 3 (b) is a cross-sectional view of the detector of FIG. 3 (a).
- FIG. 4 (a) is a top view of the configuration of another detector according to the present embodiment as viewed from above.
- FIG. 4 (b) is a cross-sectional view of the detector of FIG. 4 (a).
- FIG. 5 (a) is a top view of the configuration of another detector according to the present embodiment as viewed from above.
- FIG. 5 (b) is a cross-sectional view of the detector of FIG. 5 (a).
- FIG. 6 is a diagram showing the results of examining the detection sensitivity of the detector in this example.
- FIG. 7 (a) is a top view of the structure of the detector used in the conventional QCM chemical sensor device as viewed from above.
- FIG. 7 (b) is a cross-sectional view of the detector of FIG. 7 (a).
- the present invention relates to a detector that can be used for a chemical sensor device using the QCM method or the SPR method, and the use thereof. For this reason, in the following embodiment, the detector according to the present invention will be described first, and then its usage will be described.
- the detector according to the present invention is a detector for a chemical sensor device that detects the measurement target substance by adsorbing the measurement target substance contained in the medium to the detection surface, and the detector is a measurement target.
- a specific configuration is sufficient if the detection surface for detecting a substance has an adsorption layer containing hydroxyapatite or element-substituted apatite in which some elements are substituted.
- the size and shape) and the manufacturing method are not particularly limited.
- the subject of the present invention is to provide an adsorption layer containing hydroxyapatite or the like having excellent adsorption ability for the measurement target substance on the detection surface where the detector for the chemical sensor device and the measurement target substance are in contact with each other. This is to improve the detection sensitivity of the detector, and does not exist in the individual structural features or manufacturing methods specifically described in the present specification. Therefore, it should be noted that configurations other than the structure and method of each embodiment described in this specification also belong to the scope of the present invention.
- the term “medium” means any medium such as liquid or gas that can detect a substance using a conventionally known chemical sensor device.
- the type is not particularly limited.
- various buffer solutions that can stably hold biomolecules can be cited as shown in the examples described later.
- the specific configuration of the "measurement target substance” is not particularly limited as long as it is a substance that can be detected by adsorbing to the surface of the detector. Examples include fine particle chemicals, ligands, nucleic acids (DNA, RNA, etc.), proteins, peptides, antibodies, signal transduction substances such as specific cell inducers and hormones, and environmental hormone substances.
- the “detection surface” is a surface for detecting the measurement target substance by adsorbing the measurement target substance. When the measurement target substance is adsorbed on the detection surface of the detector, its characteristics change, and the measurement target substance can be detected.
- detection surfaces include, for example, the electrode surface in a detector (quartz crystal) for a chemical sensor device using the QCM method and the surface of a metal thin film in the detector for a chemical sensor device using the SPR method. I can list them.
- Adsorption refers to any specific, non-specific adsorption, attachment or binding that is physical, and also includes biological / immunological specific binding.
- the "chemical sensor device” is not particularly limited as long as it is a chemical sensor device for detecting a small amount of chemical substances contained in a medium, but preferably, A chemical sensor device using the QCM method or the SPR method is suitable.
- no, idroxyapatite as used herein is represented by Ca (PO) (OH).
- 10 4 6 2 Refers to the substance, but also includes a mixture of calcium phosphate and hydroxyapatite from which water molecules have been released, which is obtained by subjecting powerful hydroxyapatite to a heat treatment such as sintering.
- the "element-substituted apatite” is not particularly limited in terms of the type, amount, and the like of the substituted element as long as a part of the elements in the hydroxyapatite molecule is substituted.
- a substitution element that enhances conductivity and a substitution element that enhances biocompatibility are particularly preferable.
- Na can be cited as a substitution element that enhances electrical conductivity
- Mg can be cited as a substitution element that enhances biocompatibility.
- the substitution element is not limited to these substitution elements. In other words, it can be said that element-substituted apatite is a highly functionalized product with new properties added while maintaining the excellent adsorption performance of nodyl and hydroxyapatite.
- the "adsorption layer" includes the above-mentioned no, idoxyapatite or element-substituted avatar.
- Contains. Nodyl, idroxyapatite or element-substituted apatite is a substance having a phosphate group and a Ca ion and having excellent adsorptivity.
- the content in the medium is more than that of the detector for the conventional chemical sensor device. It is possible to improve the detection sensitivity of the particles or the interaction between particles.
- the "adsorption layer” may contain any other substance as long as it contains at least the hydroxyapatite or the element-substituted apatite.
- the “adsorption layer” includes a specific binding substance (intermediate substance) for adjusting the adsorptive power and binding force between the substance to be measured and the adsorbing layer!
- the “specific binding substance” is preferably a substance that specifically interacts with the substance to be measured, and examples thereof include ligands, antibodies, and specific cell inducers.
- the formation method of the "adsorption layer" is not particularly limited as long as it is provided on the surface of the detector that can contact the substance to be measured.
- a coating method a conventionally known dipping method, sputtering method, plasma spraying method, laser ablation method and the like can be mentioned.
- the laser ablation method is preferable.
- the adsorption layer can be formed into a thin film by forming the adsorption layer using the laser ablation method, and the detector can be obtained without impairing the high resolution characteristics inherent in the detector. This is because it is possible to improve the sensitivity by performing surface modification.
- heat treatment or sintering treatment may be performed at a predetermined temperature for the purpose of improving crystallinity.
- the "detector" in the present specification is detachable from the chemical sensor device main body and is attached to the chemical sensor device to detect a measurement target substance such as a trace amount of chemical substance.
- Element sensor part
- a change in the oscillation frequency (in the case of the QCM method) or a change in the refractive index of the light (in the case of the SPR method) caused by the target substance adhering to the surface of the detector is used as an index
- it is an element for detecting and quantifying the adsorption / desorption of the measurement target substance.
- crystal resonators for use in chemical sensor devices using the QCM method, elements for use in chemical sensor devices using the SPR method, etc. Can be mentioned.
- FIG. 1 (a) is a top view of the configuration of the detector according to the present embodiment as viewed from above
- FIG. 1 (b) is a cross-sectional view of the detector of FIG. 1 (a).
- the detector 10 includes an adsorption layer 1, a quartz plate 11, and metal electrodes 12a′12b.
- the metal electrodes 12a′12b are arranged so as to face both sides of the crystal plate 11 with the crystal plate 11 interposed therebetween.
- the metal electrodes 12a '12b are formed smaller than the size of the quartz plate 11.
- the surface 11a of the crystal plate 11 on which the metal electrode 12a is formed is a surface in contact with the sample (medium) containing the measurement target substance.
- the adsorption layer 1 is formed so as to cover the entire surface 11a of the quartz plate 11 on which the metal electrode 12a is formed.
- the detector 10 is formed on the surface of the conventional detector (for example, the detector 100 in FIGS. 7 (a) and 7 (b)) on which the metal electrode that contacts the measurement target substance is formed. Is provided on the entire surface.
- the adsorption layer 1 including hydroxyapatite or the like having excellent adsorption ability is formed on the entire surface 11a of the quartz plate 11 including the metal electrode 12a. For this reason, adsorption in a wide area can be induced and sensitivity can be improved to the maximum.
- the detector 10 can perform detection with high sensitivity exceeding the limit of detection sensitivity caused by the low adsorption capability of the metal electrode material in the conventional detector for chemical sensor devices. it can. In other words, the detector 10 can detect even a low-concentration chemical substance that cannot be detected by a conventional detector.
- the adsorption layer 1 may contain bio-compatible element-substituted apatite.
- tissue induction that is more likely to be adsorbed specifically to bio-compatible element-substituted apatite than other element-substituted apatite or stoichiometric composition apatite. It is possible to improve the effectiveness as a means for conducting molecular biological experiments regarding biocompatibility, such as the presence or absence of factors.
- FIGS. 2 ( a ) and 2 (b) One embodiment of the present invention will be described below with reference to FIGS. 2 ( a ) and 2 (b).
- components having the same functions as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted. That is, here, differences from the first embodiment will be described.
- Fig. 2 (a) is a top view of the configuration of the detector according to the present embodiment as viewed from above
- Fig. 2 (b) is a cross-sectional view of the detector of Fig. 2 (a).
- the detector 20 according to the present embodiment includes an adsorption layer 21, a crystal plate 11, and a metal electrode 12b.
- the adsorption layer 21 and the metal electrode 12b are arranged so as to face both sides of the crystal plate 11 with the crystal plate 11 interposed therebetween.
- the adsorption layer 21 and the metal electrode 12b are formed smaller than the size of the quartz plate 11.
- the surface 11a of the quartz plate 11 on which the adsorption layer 21 is formed is a surface that comes into contact with a sample (medium) containing the substance to be measured.
- the adsorption layer 21 includes element-substituted apatite having conductivity, and the adsorption layer 21 itself has a conductivity.
- the adsorption layer 21 is provided as an electrode.
- the detector 20 is provided with the conductive adsorption layer 21 as a metal electrode in contact with the measurement target substance in the conventional detector (for example, the detector 100 in FIGS. 7 (a) and 7 (b)). It is the structure which was made.
- the electrode of the detector which usually has a metal material force, is replaced with the adsorption layer 21 containing conductive element-substituted apatite, whereby an adsorption layer that also serves as an electrode can be formed. And the manufacturing process of the detector can be simplified.
- the metal electrode 12b may be composed of an adsorption layer 21 containing conductive element-substituted apatite.
- FIGS. 3 (a) and 3 (b) An embodiment of the present invention will be described below with reference to FIGS. 3 (a) and 3 (b).
- constituent elements having the same functions as those in the first and second embodiments described above are denoted by the same reference numerals and description thereof is omitted. That is, here Now, differences from the first and second embodiments will be described.
- FIG. 3 (a) is a top view of the configuration of the detector according to the present embodiment as viewed from above
- FIG. 3 (b) is a cross-sectional view of the detector of FIG. 3 (a).
- the detector 30 according to the present embodiment includes an adsorption layer 31, a crystal plate 11, and metal electrodes 12a′12b.
- the configurations of the crystal plate 11 and the metal electrodes 12a ′ 12b are the same as in the first embodiment, and the adsorption layer 31 is provided on the surface of the metal electrode 12a in a distributed manner at a plurality of locations.
- the detector 30 is finely formed on the surface of the metal electrode in contact with the measurement target substance in the conventional detector (for example, the detector 100 in FIGS. 7A and 7B).
- the adsorbed layer 31 is provided in a dispersed manner at a plurality of locations.
- the detector 30 can be easily manufactured, for example, by etching a part of the adsorption layer 1 in the detector 10 of the first embodiment.
- the adsorption layer 31 coated with hydroxyapatite or the like is provided by being dispersed at a part of the surface of the detector 30 or at a plurality of locations, thereby greatly affecting the adsorptivity.
- the total adsorption area (surface area) of the layer 30 can be easily adjusted as intended, and the detection sensitivity can be controlled.
- the size and shape of the adsorption layer 31 according to the type of the substance to be measured the type and direction of adsorption of the adsorbed substance can be controlled. Therefore, according to the detector 30 according to the present embodiment, it is possible to control the adsorption selectivity, adsorption orientation, adsorption efficiency, etc. of the measurement target substance, and it can be applied to the analysis of the adsorption mechanism. .
- FIGS. 4 ( a ) and 4 (b) One embodiment of the present invention is described below with reference to FIGS. 4 ( a ) and 4 (b).
- constituent elements having the same functions as those in the first to third embodiments described above are given the same reference numerals, and descriptions thereof are omitted. That is, here, differences from Embodiments 1 to 3 described above will be described.
- Fig. 4 (a) is a top view of the configuration of the detector according to the present embodiment as viewed from above
- Fig. 4 (b) is a cross-sectional view of the detector of Fig. 4 (a).
- the detector 40 according to the present embodiment includes an adsorption layer 1, a crystal plate 11, a metal electrode 12a′12b, and a non-adsorption layer 41. Yes.
- the non-adsorbing layer 41 does not adsorb the measurement target substance in the sample (medium).
- the force that can be suitably formed using a material such as silicone resin, tetrafluoroethylene resin, etc. is not limited to these.
- the configurations of the adsorption layer 1, the quartz plate 11, and the metal electrodes 12a and 12b are the same as those in Embodiment 1.
- the adsorption layer 1 is formed on the entire surface 11a of the quartz plate 11 including the metal electrode 12a. Have been.
- the non-adsorbing layer 41 is formed so as to cover the surface of the adsorbing layer 1.
- the non-adsorbing layer 41 is provided with openings 42 dispersed at a plurality of locations for bringing the measurement target substance in the sample (medium) into contact with the adsorbing layer 1.
- the detector 40 adsorbs the measurement target substance at the portion of the adsorption layer 1 exposed from the finely formed opening 42. For this reason, by providing the non-adsorbing layer 41 and the opening 42 in a part of the surface of the detector 40 or in a plurality of locations, the total adsorption area (surface area) of the adsorption layer 1 that greatly affects the adsorptivity. ) Can be easily adjusted as intended, and the detection sensitivity can be controlled. Further, by appropriately adjusting the size and shape of the non-adsorbing layer 41 and the opening 42 according to the type of the substance to be measured, it is possible to control the type and direction of the adsorbing substance.
- the adsorption selectivity, adsorption orientation, adsorption efficiency, etc. of the measurement target substance can be controlled as in the third embodiment, and the adsorption mechanism can be analyzed. It can be applied to.
- the detector 40 can be easily manufactured by, for example, etching a part of the non-adsorbing layer 41.
- FIGS. 5 (a) and 5 (b) An embodiment of the present invention will be described below with reference to FIGS. 5 (a) and 5 (b).
- constituent elements having the same functions as those in the first to fourth embodiments described above are given the same reference numerals, and descriptions thereof are omitted. That is, here, differences from Embodiments 1 to 4 described above will be described.
- FIG. 5 (a) is a top view of the configuration of the detector according to the present embodiment as viewed from above
- FIG. 5 (b) is a cross-sectional view of the detector of FIG. 5 (a).
- the detector 50 according to the present embodiment includes an adsorption layer 51, a quartz plate 11, and metal electrodes 12a′12b.
- the configurations of the quartz plate 11 and the metal electrodes 12a '12b are the same as those in the first embodiment, and the adsorption layer 51 is formed on the entire surface 11a of the quartz plate 11 including the metal electrodes 12a.
- the adsorption layer 51 contains a specific binding substance 52 in addition to hydroxyapatite or element-substituted apatite. That is, the adsorption layer 51 is configured to have selectivity for the measurement target substance due to the action of the specific binding substance 52.
- the specific binding substance 52 may be already included when the adsorption layer 51 is formed by coating, but the adsorption layer 51 may be subjected to a heat treatment to improve crystallinity after coating. After the heat treatment, it is preferably applied to the surface of the adsorption layer 51 and included.
- the detector 50 includes the adsorption layer 51 having the specific binding substance 52 (for example, a ligand, an antibody, a specific cell inducer, etc.), so It is possible to adjust the binding force between the substance to be measured and the adsorption layer 51 by providing selectivity.
- the specific binding substance 52 for example, a ligand, an antibody, a specific cell inducer, etc.
- the detector according to the present invention has an adsorption layer containing a substance having excellent adsorptivity such as hydroxyapatite, as described above. Therefore, a trace amount of chemical substance can be detected with high sensitivity by using the detector according to the present invention in the chemical sensor device.
- the present invention includes a chemical sensor device including the above-described detector.
- the other configuration of the chemical sensor device according to the present invention is not particularly limited as long as it includes the above-described detector.
- the chemical sensor device here is not particularly limited as long as it is a chemical sensor device to which the above-described detector can be applied, but is particularly a chemical sensor device using the QCM method or the SPR method. I prefer to be there.
- the detector according to the present invention or the chemical sensor device including the detector inclusions and fine particles (for example, biomolecules, ligands, proteins, etc.) in a medium such as liquid or gas.
- Detection of chemical substances such as antibodies, specific cell inducers, environmental substances, etc., or interactions between particles in the same medium (protein-protein, antibody-antigen, hormone-receptor, protein-nucleic acid, substrate-enzyme, (Such as between complementary DNA pairs) can be detected with high sensitivity.
- proteins-protein, antibody-antigen, hormone-receptor, protein-nucleic acid, substrate-enzyme, can be detected with high sensitivity.
- by increasing the detection sensitivity of trace amounts of chemical substances it is possible to expand the measurement applicable range of, for example, genes, antigenic substances, odors, tastes, and environmental substances (environmental hormones).
- a hyde mouth xiapatite or one of them is formed on the surface of the detector portion in a chemical sensor device for detecting a trace substance such as a quartz crystal microbalance method (QCM method), a surface plasmon resonance sensor, and the like.
- QCM method quartz crystal microbalance method
- a chemical sensor device in which the hydroxyapatite detector surface coating method is a laser ablation method is included in the present invention. Also included in the present invention is a detector for a magnetic sensor device that uses conductive element-substituted apatite for the electrode itself of the vibrator. In addition, a detector for a chemical sensor device using element-substituted apatite having biocompatibility for the adsorption layer is included in the present invention.
- a chemical sensor device in which a hydroxyapatite coating film is coated on the entire surface of the detector is included. Also included is a digital sensor device coated with a structure in which a hydroxyapatite coating film is dispersed at multiple locations on the detector surface.
- the present invention includes a detector for an energy sensor device obtained by covering a part of the adsorption layer with another material, a force for performing processing such as etching to achieve the vibrator.
- the present invention includes a detector for a chemical sensor device in which an intermediate substance is added in advance to any force of the adsorption layer in order to adjust the binding force between the non-detection substance and the vibrator.
- a QCM detector coated with hydroxyapatite was prepared by the following method, and the effect of improving the detection sensitivity of the adsorbed substance by the QC M method was confirmed.
- Hydroxyapatite was deposited on the surface of a commercially available QCM detector (sensor chip for AFFINIXQ manufactured by i-Siam Co., Ltd.) using a laser ablation method. Then, heat treatment was applied to increase crystallinity, and a hydroxyapatite-coated QCM detector was fabricated. This is attached to the body of the QCM chemical sensor device (AFFINIXQ, manufactured by Y-Sham Co., Ltd.) as a detector (sensor), and the sushi derived sushi solution dripped in 8 mL (milliliter) of physiological saline (PBS) buffer solution. We detected and compared the sensitivity with the conventional sensor.
- QCM chemical sensor device AFFINIXQ, manufactured by Y-Sham Co., Ltd.
- the detection sensitivity can be remarkably improved as compared with the conventional detector and the chemical sensor device. Can do. For this reason, it is possible to measure a very small amount of chemical substances that could not be detected so far, so it has a wide range of industrial applicability including related industries such as chemicals, pharmaceuticals, and foods.
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JP2006532699A JP4670084B2 (ja) | 2004-08-31 | 2005-08-30 | 化学センサ装置用の検出子およびその利用 |
US11/661,358 US8277750B2 (en) | 2004-08-31 | 2005-08-30 | Detector for chemical sensor device and use thereof |
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JP2010071716A (ja) * | 2008-09-17 | 2010-04-02 | Seiko Epson Corp | Qcmデバイスとその製造方法 |
JP2014081297A (ja) * | 2012-10-17 | 2014-05-08 | Fujitsu Ltd | Qcmセンサとその製造方法 |
JP2016065726A (ja) * | 2014-09-22 | 2016-04-28 | 尾池工業株式会社 | バイオセンサ、及びその製造方法 |
JP2016136102A (ja) * | 2015-01-23 | 2016-07-28 | 尾池工業株式会社 | バイオセンサ、及びその製造方法 |
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DE102007013938A1 (de) * | 2007-03-23 | 2008-09-25 | Forschungszentrum Karlsruhe Gmbh | Vorrichtung zur Messung von Feinstpartikelmassen |
US7930923B2 (en) * | 2009-04-01 | 2011-04-26 | The University Of North Florida Board Of Trustees | Quartz crystal microbalance with nanocrystalline oxide semiconductor thin films and method of detecting vapors and odors including alcoholic beverages, explosive materials and volatilized chemical compounds |
US8860943B2 (en) * | 2009-05-12 | 2014-10-14 | Valorisation-Recherche, Limited Partnership | High sensitivity plasmonic structures for use in surface plasmon resonance sensors and method of fabrication thereof |
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JPS6014481B2 (ja) * | 1980-01-17 | 1985-04-13 | 三菱電機株式会社 | 感湿素子 |
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JP2003322653A (ja) * | 2002-05-07 | 2003-11-14 | Toshiba Corp | プローブ固定支持体及びプローブ固定担体 |
JP2005283550A (ja) * | 2004-03-27 | 2005-10-13 | Japan Science & Technology Agency | 化学バイオセンサおよびその製造方法 |
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US4855118A (en) * | 1987-04-15 | 1989-08-08 | Nichia Kagaku Kogyo K.K. | Method of producing fluorapatite |
US5763191A (en) * | 1990-12-12 | 1998-06-09 | Boehringer Mannheim Gmbh | Universal binding film |
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JP3300542B2 (ja) | 1994-09-08 | 2002-07-08 | 旭光学工業株式会社 | 抗原又は抗体の検出シート、検出キット及び検出方法 |
US6645644B1 (en) * | 1996-10-17 | 2003-11-11 | The Trustees Of Princeton University | Enhanced bonding of phosphoric and phosphoric acids to oxidized substrates |
JP2001153777A (ja) | 1999-11-26 | 2001-06-08 | Initium:Kk | 水晶発振子 |
JP4096242B2 (ja) | 2002-11-13 | 2008-06-04 | 東洋紡績株式会社 | 表面プラズモン共鳴測定装置 |
JP4295231B2 (ja) * | 2005-03-01 | 2009-07-15 | 富士通株式会社 | 広帯域光吸収性光触媒及びその製造方法、並びに、広帯域光吸収性光触媒含有組成物及び成形体 |
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JPS6014481B2 (ja) * | 1980-01-17 | 1985-04-13 | 三菱電機株式会社 | 感湿素子 |
JPS63257201A (ja) * | 1987-04-15 | 1988-10-25 | 日亜化学工業株式会社 | 感湿抵抗体 |
JPH07128269A (ja) * | 1993-11-05 | 1995-05-19 | Sekisui Plastics Co Ltd | 炭酸ガス検出素子 |
JP2003253424A (ja) * | 2002-03-01 | 2003-09-10 | Shigeki Mototsu | ハイドロキシアパタイト膜コーティング材とその製造方法 |
JP2003322653A (ja) * | 2002-05-07 | 2003-11-14 | Toshiba Corp | プローブ固定支持体及びプローブ固定担体 |
JP2005283550A (ja) * | 2004-03-27 | 2005-10-13 | Japan Science & Technology Agency | 化学バイオセンサおよびその製造方法 |
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JP2010071716A (ja) * | 2008-09-17 | 2010-04-02 | Seiko Epson Corp | Qcmデバイスとその製造方法 |
JP2014081297A (ja) * | 2012-10-17 | 2014-05-08 | Fujitsu Ltd | Qcmセンサとその製造方法 |
JP2016065726A (ja) * | 2014-09-22 | 2016-04-28 | 尾池工業株式会社 | バイオセンサ、及びその製造方法 |
JP2016136102A (ja) * | 2015-01-23 | 2016-07-28 | 尾池工業株式会社 | バイオセンサ、及びその製造方法 |
Also Published As
Publication number | Publication date |
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US8277750B2 (en) | 2012-10-02 |
JP4670084B2 (ja) | 2011-04-13 |
JPWO2006025358A1 (ja) | 2008-05-08 |
US20080202926A1 (en) | 2008-08-28 |
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