WO2002065112A1 - Apparatus for detecting interaction between biopolymer and ligand and method thereof - Google Patents
Apparatus for detecting interaction between biopolymer and ligand and method thereof Download PDFInfo
- Publication number
- WO2002065112A1 WO2002065112A1 PCT/JP2002/001269 JP0201269W WO02065112A1 WO 2002065112 A1 WO2002065112 A1 WO 2002065112A1 JP 0201269 W JP0201269 W JP 0201269W WO 02065112 A1 WO02065112 A1 WO 02065112A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- biopolymer
- reaction field
- detecting
- interaction
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
- G01N33/54373—Apparatus specially adapted for solid-phase testing involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
- G01N33/5438—Electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0645—Electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/0864—Configuration of multiple channels and/or chambers in a single devices comprising only one inlet and multiple receiving wells, e.g. for separation, splitting
Definitions
- the present invention relates to an apparatus for detecting an interaction between a biopolymer and a ligand, and a method therefor.
- radioimmunoassay which labels a known ligand with a radioisotope, an enzyme, or a fluorescent compound
- a labeled immunoassay method such as an enzyme immunoassay (EIA / ELISA) or a fluorescence immunoassay (FIA)
- EIA / ELISA enzyme immunoassay
- FIA fluorescence immunoassay
- SPR sensor surface plasmon resonance phenomenon
- This method is based on the phenomenon that, if there is a change in concentration near a metal thin film provided on a glass substrate, it is reflected on the refractive index, and the incident angle that reduces the intensity of reflected light changes.
- one of the compounds whose bond is to be observed is immobilized on a gold thin film via dextran or the like, and a sample solution containing another compound is allowed to flow to detect a change in the incident angle.
- the streaming potential or the electropotential generated by the interfacial electric double layer indicates the state of the solid surface, and is applied to various purposes in many fields such as polymer membranes, fibers, and various particles. It is known that this streaming potential or overnight potential is also changed by the binding of a biopolymer to a ligand (Biosensors 2, pages 89-: 100, 1986).
- Labeling immunoassay methods such as the enzyme immunoassay (E. I AZE LISA) and fluorescence immunoassay (FIA) require the use of a known ligand / labeled compound. Not applicable to proteins of unknown function.
- the SPR sensor does not require a known ligand-labeled compound, it is currently focused on detecting relatively large intermolecular bonds, and it is said that the lower molecular weight is limited to several hundred daltons even under optimal conditions. This is a major limitation when applied to proteins of unknown function.
- the mechanochemical method does not require a known ligand-labeled compound like the SPR sensor, and can be applied to low molecular weight compounds. (It has been reported that the binding between protein and Ca or Mg can be detected.) However, it is very likely that the device will be very large and complicated if it is applied to simultaneously detect the binding of a large number of proteins and ligands.
- the streaming potential-sequential potential has been studied as a method applicable to detection of binding between a biopolymer and a ligand without requiring a known ligand-labeled compound and regardless of the molecular weight.
- the problem with this method is the method for fixing biopolymers. Glad et al. Fixed the biopolymer in a tube packed with a porous material, Nishizaki fixed it in latex particles, and Koch et al. Fixed it in a fused silica-filled cavernary. Therefore, the conventional fixation method cannot detect the interaction between many biopolymers and the ligand at once.
- an object of the present invention is to provide an apparatus and a method for detecting the binding between a high molecule and a compound that specifically binds thereto without the need for a known ligand-labeled compound.
- Another object of the present invention is to provide an apparatus and a method for detecting the binding between a large number of biopolymers and a compound that specifically binds to them at a time without requiring a known ligand / labeled compound. It is. Disclosure of the invention
- An apparatus for detecting an interaction between a biopolymer and a ligand according to the present invention includes: a reaction field in which a biopolymer is immobilized; a supply channel connected to the reaction field, for supplying a sample to the reaction field; A recovery flow path connected to the reaction field and recovering a sample that has passed at least a part of the reaction field; and a block forming a reaction system having:
- a sample is supplied to the reaction field via the supply channel, and while the sample that has passed at least a part of the reaction field is collected from the recovery channel, the flow potential of the fixed biological polymer is changed.
- an apparatus for detecting an interaction between a biopolymer and a ligand comprises: the block comprising first and second substrates having flat surfaces joined to each other; A supply flow path and a recovery flow path are formed on the joint surface of these substrates, and a supply opening and a recovery opening for connecting the supply flow path and the recovery flow path to the outside are formed. It is characterized by having achieved.
- an apparatus for detecting an interaction between a biopolymer and a ligand according to the present invention is characterized in that the biopolymer is immobilized by an electrospray deposition method.
- the apparatus for detecting the interaction between a biopolymer and a ligand according to the present invention includes a pair of minute electrodes arranged on the supply channel side and the recovery channel side of the fixed biopolymer,
- the electrode is an ISFET
- the apparatus for detecting the interaction between a biopolymer and a ligand comprises a plurality of biopolymer films or spots arranged and fixed in an array, and each of the above-mentioned films or spots.
- a plurality of pairs of electrodes disposed on the supply channel side and the recovery channel side of the film or spot,
- an apparatus for detecting an interaction between a biopolymer and a ligand includes: a pair of pressure detecting means arranged at the supply opening and the collection opening; And calculating means for determining the potential over time based on
- the method for detecting the interaction between a biopolymer and a ligand comprises a reaction field in which the biopolymer is immobilized, a reaction field connected to the reaction field, and a sample supplied to the reaction field.
- the method for detecting the interaction between a biopolymer and a ligand according to the present invention includes the steps of detecting pressure at the supply opening and the recovery opening, respectively, based on the measured streaming potential and pressure.
- the present invention has been mainly described as an apparatus. However, it goes without saying that the present invention includes respective methods corresponding to these apparatuses.
- the potential difference between the slip surface and the inside of the solution is called the zero potential () potential or the electrokinetic potential.
- ⁇ an arbitrary pressure difference
- ⁇ an arbitrary pressure difference
- streaming potential a potential difference appears between both interfaces of the membrane, at both ends of the capillary and the two flat plates.
- ⁇ ⁇ is the pressure difference between the two interfaces of the membrane and the ends of the capillary or two flat plates when flowing the solution
- ⁇ is the dielectric constant of the solution
- ? 7 is the viscosity of the solution
- ⁇ is the conductivity of the solution.
- ⁇ , 7 and are values specific to the solution, and can be known from the literature and other measurements. Therefore, ⁇ can be obtained by measuring ⁇ while changing. ⁇ can be considered as a parameter that represents the characteristics of the surface of the membrane, capillary, or plate.
- the measurement is performed between both interfaces of the membrane and at both ends of the capillary or two flat plates as described above.
- a local pressure difference ⁇ ⁇ ⁇ is applied between two intermediate points in a membrane pore, capillary or two flat plates, a local potential difference ⁇ between the two points can be obtained, and an apparent local One night potential ⁇ ⁇ ⁇ 5 can be obtained.
- ⁇ ? 7. If the conditions such as ⁇ are kept constant, the obtained streaming potential can be used as a measure of the surface evaluation instead of the overnight potential. Therefore, when there are ⁇ parts with different properties (called local surfaces) on the surface of pores, capillaries and two flat plates in a membrane, ⁇ sets of electrodes are placed at both ends of each local surface.
- ⁇ sets of streaming potentials can be obtained.
- the local pressure difference between the electrodes on the ⁇ sets of local surfaces can be obtained from the measurement of the total pressure difference ⁇ and the position of the electrodes, and thus the apparent local zeta potential can be finally calculated.
- FIG. 1 is a sectional view showing the basic structure of a detection device 10 according to the present invention
- FIG. 2 is a schematic diagram of a first substrate 21 constituting a detection device according to the present invention
- FIG. 3 is a schematic diagram of a second substrate 34 constituting a detection device according to the present invention
- FIG. Sectional view of a double-sided detection device 50 according to the invention
- Figure 5 is a cross-sectional view of a substrate using a pin-type electrode
- Figure 6 is a cross-sectional view of a substrate using land-type electrodes
- Fig. 7 is a schematic diagram of an electrode using an IS-FET (Ion Sensitive Field Effect Transistor).
- IS-FET Ion Sensitive Field Effect Transistor
- FIG. 8 is a cross-sectional view of a substrate using an IS-FET type electrode
- Figure 9 is a schematic diagram of an array-type detector in which a number of biopolymer spots and electrodes are arranged;
- FIG. 10 is a graph showing the relationship between the potential difference obtained when a CaC 12 aqueous solution (HEPES buffer pH 7.5) was passed at lm L / min and the aqueous solution concentration; and
- FIG. 4 is a graph showing the difference between the streaming potential of a substrate on which a polymer spot is immobilized and the streaming potential of a substrate without spots alone.
- FIG. 1 is a cross-sectional view showing a basic structure of a detection device 10 according to the present invention.
- the detection device 10 is composed of a block having a reaction system in which the flat surfaces of the first substrate 11 and the second substrate 14 are joined to form a flow path and a reaction field on the joining surface.
- a biopolymer spot 12 (film) is immobilized on the surface of the first substrate 11, and a pair of electrodes 13 is arranged on the upstream and downstream sides of the spot 12.
- the second substrate 14 is provided with a concave portion 18 that forms a supply channel 15, a recovery channel 16, and a reaction field 17 by bonding.
- a supply opening 19 and a recovery opening 20 for communicating the flow path with the outside, and are connected to the inflow pipe and the discharge pipe, respectively.
- a 0 ring is A ring-shaped groove for accommodating the O-ring is provided on both or one of the substrates.
- the size of the first substrate 11 is about 75 x 25 mm made of acrylic having a thickness of 1 mm, and the second substrate 14 functioning as a flow channel structure has a thickness of 75 x 25 mm as well. It is 5 mm and made of acrylic.
- two rod-shaped platinum electrodes 13 are fixed in front and behind (upstream and downstream) of the polymer film of the first substrate 11 and have a diameter of about 0.2 mm. It protrudes approximately 0.5 mm from the substrate surface.
- the channel is sealed by an oval o-ring, 1 mm thick, 5 mm wide and about 35 mm long.
- the liquid is injected from the inflow pipe by a peristatic pump or the like.
- the biopolymer spots 12 are formed by an electrospray method, and are cross-linked by dartal aldehyde.
- the local streaming potential generated between the pair of electrodes 13 and 13 is measured while the sample solution containing the ligand is injected into the inflow tube while applying pressure, and the sample is allowed to flow into the reaction field serving as the measurement site. .
- the binding between the substance present on the local surface and the ligand is determined based on the change in the value of the streaming potential measured in this way or the difference from the reference potential measured using a substrate without a biopolymer.
- FIG. 1 shows an example of a device having a single measuring unit provided with one biopolymer film and a pair of electrodes.
- n measuring units are provided in an array (n spots and It is also possible to configure an apparatus that measures a streaming potential due to the binding of a plurality of types of biomolecules and ligands at a time, with n pairs of electrodes provided before and after each spot).
- the range of n is preferably l ⁇ n ⁇ l 0 0 0 0.
- the device can be configured under the following conditions.
- the distance between the flow path and the reaction field formed on the joint surface between the first substrate and the second substrate is set to 50 nm or more and 1 cm or less.
- each substrate is lmm 2 or more and 900 cm 2 or less.
- the material of the substrate is a metal, inorganic, or organic material, but has conductivity.
- Platinum, platinum black, silver / silver chloride are used for the electrodes. 5 mm or more and 2 mm or less, for a flat plate, the thickness is 0.05 mm or more and 2 mm or less, and the width is 0.1 mm or more and 1 cm or less.
- the electrolyte solution used is an aqueous solution consisting of electrolytes monovalent such NaC 1, an aqueous solution comprising a divalent electrolytes such as Ca C 1 2, with an aqueous solution consisting of other multivalent electrolyte, concentration 10- 5 Use between mo 1ZL and 5mo 1ZL.
- the pressure difference ⁇ applied between both ends of the flow channel is from 0.01 atm to 1 atm.
- the size of the minute film or spots to 1 cm 2 or less 1 m 2 or more.
- the g separation between electrodes should be 1 m or more and 1 cm or less.
- the individual potentiometers are located in front of or behind the biopolymer microfilm or spot (the supply channel side and the recovery channel side) on which proteins and DNA are deposited by electrospray. It consists of a pair of electrodes arranged back and forth across a film or spot on an unfixed part, and the potential difference between these electrodes is measured while flowing the sample. The difference between the potential difference measured in this way and the potential difference when the biopolymer is not fixed or the potential difference from when the sample is started to flow is used to bind the biopolymer to the ligand. To detect.
- FIG. 2 is a schematic diagram of the first substrate 21 constituting the detection device according to the present invention.
- a spot 22 (film) of a biopolymer is fixed on the flat surface of the first substrate 21, and a pair of electrodes 23 are arranged on the upstream and downstream sides of the spot 22.
- FIG. 3 is a schematic diagram of the second substrate 34 constituting the detection device according to the present invention.
- the second substrate 34 is provided with a recess 38 that forms a supply channel 35, a recovery channel 36, and a reaction field 37 by bonding.
- a supply opening 39 and a recovery opening 40 for communicating the flow path with the outside are provided.
- a groove 41 for attaching an O-ring is provided to prevent liquid leakage of the sample.
- FIG. 4 is a cross-sectional view of a double-sided detection device 50 according to the present invention.
- This double-sided detector The device 50 is composed of a block having a reaction system in which the flat surfaces of the first substrate 51 and the second substrate 54 are joined to form a flow path and a reaction field on the joining surface.
- a biopolymer spot 52A (film) is immobilized on the surface of the first substrate 51, and a pair of electrodes 53A are arranged upstream and downstream of the spot 52A.
- a biopolymer spot 52B (film) is fixed on the surface of the second substrate 54, and a pair of electrodes 53B are arranged on the upstream and downstream sides of the spot 52B.
- the biopolymer spot 52 B and the pair of electrodes 53 B are provided on the upper substrate, and the streaming potential can be detected with higher sensitivity. It is.
- FIG. 5 is a cross-sectional view of a substrate using a pin-type electrode.
- a biopolymer spot 62 is immobilized on the surface of a substrate 61, and a pair of pin-type electrodes 6 are formed on the upstream and downstream sides so as to penetrate the substrate 61 and be exposed to a reaction field. Three are provided.
- FIG. 6 is a cross-sectional view of a substrate using land-type electrodes.
- a biopolymer spot 72 is immobilized on the surface of a substrate 71, and a pair of land electrodes 73 is provided on the upstream and downstream sides. Wiring is connected to the land-type electrode 73 by penetrating from the lower side to the upper side of the substrate 71.
- FIG. 7 is a schematic diagram of an electrode using an IS-FET (Ion Sensitive Field Effect Transistor).
- a biopolymer spot 82 is immobilized on the surface of a substrate 81, and a pair of IS-FET electrodes 83 is provided on the upstream and downstream sides thereof.
- FIG. 8 is a sectional view of a substrate using IS-FET type electrodes.
- 91 is a substrate
- 92 is an oxide film
- 93 A is a drain
- 93 B is a source
- 94 is a gate oxide film
- 95 is a protective film
- 96 is an electrode wiring. If an ISFET type electrode is used as shown in the figure, it is possible to detect the streaming potential with higher sensitivity because it is very sensitive to the potential change on the upper surface of the gate oxide film.
- FIG. 9 is a schematic diagram of an array-type detector in which a number of biopolymer spots and electrodes are arranged.
- 101 is the inlet
- 102 is the distribution circuit
- 103 Is a reaction field, ie, a measurement site
- 104 is a connector for taking out electrode wiring
- 105 is a recovery circuit
- 106 is an outlet.
- the lower part of Fig. 9 is an enlarged view of a part of the reaction field 103.
- 111 is a microchannel
- 112 is a biopolymer spot
- 113 is an electrode
- 114 is Is a wiring.
- each spot 1 1 2 is almost the same as the basic type, but these electrode wirings are drawn out to one place by the pattern on the back surface of the substrate, making it possible to electrically detect at high speed. ing.
- the sample (reaction liquid) is supplied uniformly and continuously to each spot 1 1 2 by the fine channel 1 1 1. According to this configuration, it is also possible to construct a system in which a large number of different biopolymer spots are formed on a substrate to enable detection of many different types of substances at the same time.
- a different structure such as a land type can be obtained by applying a printed board forming technique or the like.
- the wiring can be guided to the outside of the substrate using the back surface or the front surface, and an amplifier circuit can be provided immediately below the electrodes.
- FIG. 11 is a graph showing the difference between the streaming potential of the substrate on which the spot of the biopolymer is immobilized and the streaming potential of the substrate without the spot alone.
- the apparatus and method for detecting the interaction between a biopolymer and a ligand of the present invention for example, it is possible to specifically bind to various polymers without requiring a known ligand / labeled compound.
- the binding to the compound, ie, the interaction can be detected easily and easily.
- the device and method according to the present invention are expected to be applied to various fields such as clinical diagnostic analysis and environmental analysis.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Urology & Nephrology (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cell Biology (AREA)
- Microbiology (AREA)
- Clinical Laboratory Science (AREA)
- Dispersion Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/467,762 US20040115679A1 (en) | 2001-02-14 | 2002-02-14 | Apparatus for detecting interactions between biopolymer and ligand and method thereof |
| EP02712364A EP1371974A4 (en) | 2001-02-14 | 2002-02-14 | DEVICE AND METHOD FOR DETECTING INTERACTIONS BETWEEN A BIOPOLYMER AND A LIGAND |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001-37141 | 2001-02-14 | ||
| JP2001037141A JP4809983B2 (ja) | 2001-02-14 | 2001-02-14 | 生体高分子とリガンドとの相互作用を検出する装置及びその方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002065112A1 true WO2002065112A1 (en) | 2002-08-22 |
Family
ID=18900316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/001269 Ceased WO2002065112A1 (en) | 2001-02-14 | 2002-02-14 | Apparatus for detecting interaction between biopolymer and ligand and method thereof |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040115679A1 (ja) |
| EP (1) | EP1371974A4 (ja) |
| JP (1) | JP4809983B2 (ja) |
| WO (1) | WO2002065112A1 (ja) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003095620A2 (en) * | 2002-05-08 | 2003-11-20 | Scion Pharmaceuticals, Inc. | Oocyte recording chamber |
| US8536661B1 (en) | 2004-06-25 | 2013-09-17 | University Of Hawaii | Biosensor chip sensor protection methods |
| JP2006242900A (ja) * | 2005-03-07 | 2006-09-14 | Mitsubishi Chemicals Corp | センサユニット及び反応場セルユニット並びに分析装置 |
| CN101558295A (zh) * | 2006-12-12 | 2009-10-14 | 皇家飞利浦电子股份有限公司 | 电化学传感器装置及其制造方法 |
| US11339430B2 (en) | 2007-07-10 | 2022-05-24 | Life Technologies Corporation | Methods and apparatus for measuring analytes using large scale FET arrays |
| US8262900B2 (en) | 2006-12-14 | 2012-09-11 | Life Technologies Corporation | Methods and apparatus for measuring analytes using large scale FET arrays |
| US8349167B2 (en) | 2006-12-14 | 2013-01-08 | Life Technologies Corporation | Methods and apparatus for detecting molecular interactions using FET arrays |
| AU2007334393A1 (en) | 2006-12-14 | 2008-06-26 | Life Technologies Corporation | Methods and apparatus for measuring analytes using large scale FET arrays |
| GB2461127B (en) * | 2008-06-25 | 2010-07-14 | Ion Torrent Systems Inc | Methods and apparatus for measuring analytes using large scale FET arrays |
| EP2982437B1 (en) | 2008-06-25 | 2017-12-06 | Life Technologies Corporation | Methods and apparatus for measuring analytes using large scale fet arrays |
| DE202008009938U1 (de) | 2008-07-23 | 2008-10-09 | Bürkert Werke GmbH & Co.KG | Sensorsystem |
| US20100137143A1 (en) | 2008-10-22 | 2010-06-03 | Ion Torrent Systems Incorporated | Methods and apparatus for measuring analytes |
| US20100301398A1 (en) | 2009-05-29 | 2010-12-02 | Ion Torrent Systems Incorporated | Methods and apparatus for measuring analytes |
| CN102422164B (zh) * | 2009-05-15 | 2015-12-16 | 柯尼卡美能达株式会社 | 微芯片 |
| US20120261274A1 (en) | 2009-05-29 | 2012-10-18 | Life Technologies Corporation | Methods and apparatus for measuring analytes |
| US8673627B2 (en) | 2009-05-29 | 2014-03-18 | Life Technologies Corporation | Apparatus and methods for performing electrochemical reactions |
| US8776573B2 (en) | 2009-05-29 | 2014-07-15 | Life Technologies Corporation | Methods and apparatus for measuring analytes |
| TW201716791A (zh) | 2010-06-30 | 2017-05-16 | 生命技術公司 | 用於測試離子感測場效電晶體(isfet)陣列之裝置及方法 |
| US8415177B2 (en) | 2010-06-30 | 2013-04-09 | Life Technologies Corporation | Two-transistor pixel array |
| TWI580955B (zh) | 2010-06-30 | 2017-05-01 | 生命技術公司 | 離子感測電荷累積電路及方法 |
| US11307166B2 (en) | 2010-07-01 | 2022-04-19 | Life Technologies Corporation | Column ADC |
| JP5876044B2 (ja) | 2010-07-03 | 2016-03-02 | ライフ テクノロジーズ コーポレーション | 低濃度ドープドレインを有する化学的感応性センサ |
| EP2595753A1 (en) * | 2010-07-22 | 2013-05-29 | Stichting voor de Technische Wetenschappen | Lab-on-a-chip device, for instance for use of the analysis of semen |
| US9618475B2 (en) | 2010-09-15 | 2017-04-11 | Life Technologies Corporation | Methods and apparatus for measuring analytes |
| EP2619564B1 (en) | 2010-09-24 | 2016-03-16 | Life Technologies Corporation | Matched pair transistor circuits |
| US9970984B2 (en) | 2011-12-01 | 2018-05-15 | Life Technologies Corporation | Method and apparatus for identifying defects in a chemical sensor array |
| US8747748B2 (en) | 2012-01-19 | 2014-06-10 | Life Technologies Corporation | Chemical sensor with conductive cup-shaped sensor surface |
| US8821798B2 (en) | 2012-01-19 | 2014-09-02 | Life Technologies Corporation | Titanium nitride as sensing layer for microwell structure |
| US8786331B2 (en) | 2012-05-29 | 2014-07-22 | Life Technologies Corporation | System for reducing noise in a chemical sensor array |
| EP3460486A1 (en) | 2012-11-12 | 2019-03-27 | The Regents of The University of California | Electrophoretic bar code assay devices and methods for making and using the same |
| US9080968B2 (en) | 2013-01-04 | 2015-07-14 | Life Technologies Corporation | Methods and systems for point of use removal of sacrificial material |
| US9841398B2 (en) | 2013-01-08 | 2017-12-12 | Life Technologies Corporation | Methods for manufacturing well structures for low-noise chemical sensors |
| US8962366B2 (en) | 2013-01-28 | 2015-02-24 | Life Technologies Corporation | Self-aligned well structures for low-noise chemical sensors |
| US8841217B1 (en) | 2013-03-13 | 2014-09-23 | Life Technologies Corporation | Chemical sensor with protruded sensor surface |
| US8963216B2 (en) | 2013-03-13 | 2015-02-24 | Life Technologies Corporation | Chemical sensor with sidewall spacer sensor surface |
| JP6671274B2 (ja) | 2013-03-15 | 2020-03-25 | ライフ テクノロジーズ コーポレーション | 薄伝導性素子を有する化学装置 |
| JP2016510895A (ja) | 2013-03-15 | 2016-04-11 | ライフ テクノロジーズ コーポレーション | 一貫性のあるセンサ表面積を有する化学センサ |
| JP6581074B2 (ja) | 2013-03-15 | 2019-09-25 | ライフ テクノロジーズ コーポレーション | 一貫性のあるセンサ表面積を有する化学センサ |
| US9116117B2 (en) | 2013-03-15 | 2015-08-25 | Life Technologies Corporation | Chemical sensor with sidewall sensor surface |
| US9835585B2 (en) | 2013-03-15 | 2017-12-05 | Life Technologies Corporation | Chemical sensor with protruded sensor surface |
| US10458942B2 (en) | 2013-06-10 | 2019-10-29 | Life Technologies Corporation | Chemical sensor array having multiple sensors per well |
| US20160252517A1 (en) * | 2013-10-11 | 2016-09-01 | The Regents Of The University Of California | Biomolecular interaction detection devices and methods |
| WO2015163194A1 (ja) * | 2014-04-25 | 2015-10-29 | 国立大学法人東京大学 | 細胞外小胞体分析チップ、細胞外小胞体分析方法、細胞外小胞体分析装置 |
| US10077472B2 (en) | 2014-12-18 | 2018-09-18 | Life Technologies Corporation | High data rate integrated circuit with power management |
| TWI794007B (zh) | 2014-12-18 | 2023-02-21 | 美商生命技術公司 | 積體電路裝置、感測器裝置及積體電路 |
| KR20170097712A (ko) | 2014-12-18 | 2017-08-28 | 라이프 테크놀로지스 코포레이션 | 대형 fet 어레이를 사용한 분석물 측정을 위한 방법과 장치 |
| EP3427037A4 (en) * | 2016-03-09 | 2019-11-27 | The Regents of the University of California | TRANSIENT INDUCED MOLECULAR ELECTRONIC SPECTROSCOPY PROCESS FOR THE INVESTIGATION OF MOLECULAR INTERACTIONS |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257052A (ja) * | 1988-03-14 | 1990-10-17 | Ngk Spark Plug Co Ltd | バイオセンサ |
| JPH0450758A (ja) * | 1990-06-19 | 1992-02-19 | Ebara Infilco Co Ltd | ゼータ電位測定装置 |
| JPH06265551A (ja) * | 1993-03-11 | 1994-09-22 | Hoechst Japan Ltd | ゼータ電位を用いた免疫学的測定方法及び免疫学的測定用キット |
| JPH07239313A (ja) * | 1994-02-28 | 1995-09-12 | Shimadzu Corp | 導電率測定方法 |
| JPH09292358A (ja) * | 1996-02-29 | 1997-11-11 | Horiba Ltd | 光走査型二次元濃度分布測定装置を用いたゼータ電位計測方法 |
| JPH10104188A (ja) * | 1996-09-27 | 1998-04-24 | Nec Corp | ゼータ電位測定装置 |
| JPH10332621A (ja) * | 1997-06-02 | 1998-12-18 | Shimadzu Corp | ゼータ電位評価方法およびゼータ電位測定装置 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4810657A (en) * | 1987-10-19 | 1989-03-07 | Swank Roy L | Method of diagnosing multiple sclerosis and other diseases by measurement of blood plasma protein streaming potential |
| AU642444B2 (en) * | 1989-11-30 | 1993-10-21 | Mochida Pharmaceutical Co., Ltd. | Reaction vessel |
| US5770029A (en) * | 1996-07-30 | 1998-06-23 | Soane Biosciences | Integrated electrophoretic microdevices |
| US5726026A (en) * | 1992-05-01 | 1998-03-10 | Trustees Of The University Of Pennsylvania | Mesoscale sample preparation device and systems for determination and processing of analytes |
| DE4318519C2 (de) * | 1993-06-03 | 1996-11-28 | Fraunhofer Ges Forschung | Elektrochemischer Sensor |
| US5470749A (en) * | 1993-08-27 | 1995-11-28 | Mobil Oil Corporation | Method for determining steam quality using a foaming surfactant |
| DE4345152C2 (de) * | 1993-09-10 | 1999-07-15 | Inst Polymerforschung Dresden | Zeta-Potential-Meßzelle |
| US5630924A (en) * | 1995-04-20 | 1997-05-20 | Perseptive Biosystems, Inc. | Compositions, methods and apparatus for ultrafast electroseparation analysis |
| DE19755183C2 (de) * | 1997-12-11 | 2001-11-29 | Inst Polymerforschung Dresden | Mikro-Spaltzelle |
| JP2000019144A (ja) * | 1998-06-30 | 2000-01-21 | Shimadzu Corp | ゼータ電位測定方法および測定装置 |
| US6169394B1 (en) * | 1998-09-18 | 2001-01-02 | University Of The Utah Research Foundation | Electrical detector for micro-analysis systems |
| US20020177135A1 (en) * | 1999-07-27 | 2002-11-28 | Doung Hau H. | Devices and methods for biochip multiplexing |
| US6361958B1 (en) * | 1999-11-12 | 2002-03-26 | Motorola, Inc. | Biochannel assay for hybridization with biomaterial |
-
2001
- 2001-02-14 JP JP2001037141A patent/JP4809983B2/ja not_active Expired - Fee Related
-
2002
- 2002-02-14 WO PCT/JP2002/001269 patent/WO2002065112A1/ja not_active Ceased
- 2002-02-14 US US10/467,762 patent/US20040115679A1/en not_active Abandoned
- 2002-02-14 EP EP02712364A patent/EP1371974A4/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257052A (ja) * | 1988-03-14 | 1990-10-17 | Ngk Spark Plug Co Ltd | バイオセンサ |
| JPH0450758A (ja) * | 1990-06-19 | 1992-02-19 | Ebara Infilco Co Ltd | ゼータ電位測定装置 |
| JPH06265551A (ja) * | 1993-03-11 | 1994-09-22 | Hoechst Japan Ltd | ゼータ電位を用いた免疫学的測定方法及び免疫学的測定用キット |
| JPH07239313A (ja) * | 1994-02-28 | 1995-09-12 | Shimadzu Corp | 導電率測定方法 |
| JPH09292358A (ja) * | 1996-02-29 | 1997-11-11 | Horiba Ltd | 光走査型二次元濃度分布測定装置を用いたゼータ電位計測方法 |
| JPH10104188A (ja) * | 1996-09-27 | 1998-04-24 | Nec Corp | ゼータ電位測定装置 |
| JPH10332621A (ja) * | 1997-06-02 | 1998-12-18 | Shimadzu Corp | ゼータ電位評価方法およびゼータ電位測定装置 |
Non-Patent Citations (4)
| Title |
|---|
| SABINE KOCH ET AL.: "Protein detection with a novel ISFET-based zeta potential analyzer", BIOSENSORS & BIOELECTRONICS, vol. 14, 1999, pages 413 - 421, XP002950522 * |
| See also references of EP1371974A4 * |
| VICTOR N. MOROZOV ET AL.: "Electrospray deposition as a method for mass fabrication of mono- and multicomponent microarrays of biological and biologically active substances", ANAL. CHEM., vol. 71, no. 15, 1999, pages 3110 - 3117, XP000851424 * |
| VICTOR N. MOROZOV ET AL.: "Electrospray deposition as a method to fabricate functionally active protein films", ANAL. CHEM., vol. 71, no. 7, 1999, pages 1415 - 1420, XP002942985 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1371974A4 (en) | 2007-05-16 |
| JP4809983B2 (ja) | 2011-11-09 |
| EP1371974A1 (en) | 2003-12-17 |
| US20040115679A1 (en) | 2004-06-17 |
| JP2002243741A (ja) | 2002-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4809983B2 (ja) | 生体高分子とリガンドとの相互作用を検出する装置及びその方法 | |
| Rezaei et al. | Electrochemical detection techniques in biosensor applications | |
| US4822566A (en) | Optimized capacitive sensor for chemical analysis and measurement | |
| CN101978260B (zh) | 电分析方法 | |
| Knichel et al. | Utilization of a self-assembled peptide monolayer for an impedimetric immunosensor | |
| Pänke et al. | Impedance spectroscopy and biosensing | |
| Tang et al. | Fabrication of immunosensor microwell arrays from gold compact discs for detection of cancer biomarker proteins | |
| US20090242429A1 (en) | Electrochemical Biosensor | |
| US20060141469A1 (en) | Multi-layered electrochemical microfluidic sensor comprising reagent on porous layer | |
| CA2407973A1 (en) | Biological identification system with integrated sensor chip | |
| KR102153736B1 (ko) | 수직 유체 흐름을 갖는 바이오 센서 및 이를 이용한 분석 방법 | |
| US20210063334A1 (en) | Apparatus and methods for detection of diabetes-associated molecules using electrochemical impedance spectroscopy | |
| US20210285936A1 (en) | Docked aptamer eab biosensors | |
| KR101218987B1 (ko) | 바이오칩 및 그 제조 방법, 이를 이용한 분석 대상 물질 검출 방법 | |
| Ortiz et al. | Detection of antigliadin autoantibodies in celiac patient samples using a cyclodextrin-based supramolecular biosensor | |
| Thangsunan et al. | Affimer-based impedimetric biosensors for fibroblast growth factor receptor 3 (FGFR3): a novel tool for detection and surveillance of recurrent bladder cancer | |
| JP6231655B2 (ja) | 生体分子相互作用を調整するための側方流動イムノアッセイにおけるpH/温度/イオン勾配の発生およびその用途 | |
| Ameur et al. | Impedimetric measurements on polarized functionalized platinum electrodes: application to direct immunosensing | |
| JP5571705B2 (ja) | 電気的分析方法 | |
| Shlyapnikov et al. | Rapid ultrasensitive gel-free immunoblotting with magnetic labels | |
| JP2025000817A (ja) | 半導体ベースのバイオセンサとその検出方法 | |
| US7595170B2 (en) | Apparatus and method for measuring concentrations of molecules through a barrier | |
| KR100427599B1 (ko) | 대면형 다공성 전극을 포함하는 자가 시료채취 흐름계형바이오 센서 | |
| KR100972391B1 (ko) | 나노센서를 이용한 질병검사장치 | |
| RU178317U1 (ru) | Полевой транзистор для определения биологически активных соединений |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2002712364 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 2002712364 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10467762 Country of ref document: US |