WO2004010537A2 - Biopuce flexible - Google Patents
Biopuce flexible Download PDFInfo
- Publication number
- WO2004010537A2 WO2004010537A2 PCT/FR2003/002287 FR0302287W WO2004010537A2 WO 2004010537 A2 WO2004010537 A2 WO 2004010537A2 FR 0302287 W FR0302287 W FR 0302287W WO 2004010537 A2 WO2004010537 A2 WO 2004010537A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support
- electrodes
- electrically
- electronically
- multiplicity
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
Definitions
- the present invention relates to a sensor, and more particularly a biosensor, to serve as a tool in molecular biological analysis.
- biosensor is meant a functional unit, for single use or not, for example implemented for the purposes of molecular biological determination, arranged for and / or intended to cooperate with at least one distinct and complementary device or instrument, receiving a sample of interest, liquid or fluid, stationary or in motion, said liquid sample comprising at least one target species, in suspension or in solution, for example a biomolecule, optionally labeled; and the biosensor delivers at least one output signal in relation to the presence, and / or the nature, and / or the structure and / or the quantity of said target species.
- biochip a small biosensor, for example of the order of a centimeter, it can be called a "biochip", according to the terminology used in the technical field concerned.
- the biosensor comprises at least:
- the material or material of the support is inert, and not substantially electrically conductive, in the sense that said material practically does not interact with the sample, and in particular the target species, by strong bond of the covalent chemical bond type , or by weak bond, for example hydrogen bond, other interactions of physical type, such as surface tension, not being moreover excluded;
- the material constituting such a support is for example a plastic material, for example a thermoplastic resin, for example a polypropylene,
- this treatment may for example consist of a coating with a layer of an electronic conductive polymer, for example modified polypyrole, according to the techniques set out in documents F 2 703 359, WO9422889, and EP0 691 978, FR 2 787 582, EP I 141 391, and WO 0036145, at the end of this treatment, a multiplicity of electrically or electronically conductive electrodes is obtained on the support, arranged on the useful face of the support according to the operating arrangement adopted, discovered, in the sense that these electrodes can be brought into contact together with the same external liquid medium, in this case the sample of interest.
- an electronic conductive polymer for example modified polypyrole
- a set of connections, or circuit, of electrical or electronic type, with the various elementary electrodes respectively said set of connections being arranged to connect each elementary electrode individually, independently with respect to the other elementary electrodes, for example by addressing ( confer document FR-A-2741475); a multiplicity of electrical terminals corresponding respectively to the above-mentioned electrodes, disposed on a useful face of the support, uncovered, in the sense that said terminals can be connected to the outside, electrically or electronically, independently, with respect to each other; a multiplicity of electrically or electronically conductive tracks, each running on one and / or the other face of the support, connecting the multiplicity of electrodes respectively to the multiplicity of terminals; said set of connections is therefore an electrical or electronic circuit multiplexed with electrical terminals and electrodes and counter-electrodes which are connected to them respectively; a layer of an electrically or electronically insulating material, for example a varnish, coating one and / or the other face of the support, on the one hand by covering said tracks at least in part, and
- biosensors for example of the order of 1 mm 2 to a few cm 2 may require for their realization or production, the implementation of techniques called “micro” or “nano-technologies”, for example by lithography or micromachining.
- the Applicant does not intend to be limited to particular dimensions, in particular of the order of ⁇ m or of nm, when it uses the term “sensor”, “biosensor”, or “biochip” in the present description and in the claims in annex, considering that the same structure or the same arrangement as that defined below can be implemented with dimensions of the order of a few mm 2 , as with much larger dimensions.
- a biosensor as considered by the present invention cannot function autonomously, except to carry with it its own source of energy. Consequently, this biosensor is designed to cooperate, for example removably, on the one hand with external means making it possible to circulate or remain, in contact with the operating surface and the ligands, the liquid sample of interest, but also other fluids or liquids, such as washing liquid, and on the other hand with means for detecting and processing the output signal (s), the whole being generally controlled and controlled, by external electronic means, analog or computer, for example according to any processing logic or flowchart.
- biomolecule any entity, in particular biochemical, or biological, identical to or derived from any molecular species existing in nature.
- biopolymers for example DNA, TARN, oligo and polynucleotides, functional or structural proteins, peptides, oligo and polypeptides, polysaccharides, etc.
- markers or “marked” is meant the characteristic according to which a marker, that is to say a substituent or residue allowing, is attached to an entity, for example the target species, covalently or otherwise, with or without the aid of an external means, such as illumination, with or without a posterior step, such as bringing into contact with a substrate, to produce a signal, previously called the output signal.
- the preferred markers according to the present invention are:
- Fluorophores for example fluorescein, cyanine, phycoerythrin.
- Luminophores luminol, isoluminol, ABEI (N-4-amino-butyl-N- ethyl-isoluminol).
- Enzymes for example oxidation of a chromogen; confer horseradish peroxidase, alkaline phosphatase.
- determination is meant the identification, qualitative and / or quantitative, detection, description (for example sequencing), separation, or enrichment of the target species, which may be called “analyte” in the case qualitative and / or quantitative identification.
- analyte in the case qualitative and / or quantitative identification.
- determination any sequencing of a biomolecule of the DNA or polypeptide type.
- the output signal (s) for the purposes of the determination may be of any suitable nature, depending on the markers used, and the type of detection required. It could be. light, visible or invisible, electrical, electro-optical, electrochemical, etc. signals. Furthermore, these signals can if necessary be detected separately, taking into account, on the one hand, the addressing of the electrodes of the biosensor, and on the other hand of the connection assembly of the electrical terminals respectively with the different electrodes present on the biosensor.
- ligand is meant any entity, cellular, biological, or biomolecule having an affinity, specific or not, for a target species.
- a ligand mention will be made of any oligonucleotide capable of binding by weak bonds, in this case it will be said to hybridize, with a strand of DNA (target species), comprising a sequence complementary to that of the ligand.
- Each ligand is attached or anchored at each site or on each electrode of the biosensor, optionally after functionalization of the elementary sites of the operating surface of the support, by any appropriate means, for example chemical, by covalent bond, for example via a spacer arm, or by adsorption, absorption, etc.
- the binding of the ligands can be carried out according to the electrochemical techniques described in documents FR 2789401, EP 1 152 821 and WO 0047317, FR2 742 451, EP 0 868 464 and WO 9722648.
- target species any cell, biological or biochemical species capable of binding by weak bond to one or more ligands.
- biosensors of the biochip type are tools, simple or complex, well suited to all kinds of molecular biology analysis; confer
- DNA chips a new tool for genetic analysis and diagnostics. Mr. Cuzin. Clinical and Biological Transfusion 2001; 8: 291-6; and "How to make a DNA chip", Michael C.
- a biosensor as described above is placed at the bottom of a well, for example a micro-titration plate, into which the liquid sample comprising the target species is introduced, stays, then is evacuated .
- the present invention relates to a sensor, in particular a biosensor, and for example a biochip, particularly simple to manufacture or produce, and allowing the most varied implementations, for example in the wells of a microplate.
- the multiplicity of electrodes is arranged in an extreme zone opposite to another extreme zone in which the electrical terminals are grouped together, and on the other hand the support comprises at least one flexible zone, located between the two extreme zones.
- the entire support is flexible and made, for example, of flexible insulating material with a small thickness.
- Flexible means in particular that the area of the same name is foldable around at least one axis having a direction perpendicular to the direction of alignment of the operating arrangement of the electrodes and the grouping of the electrical terminals.
- the support is a flexible sheet or plate of insulating material.
- the purely electrical zone of the sensor is offset from its active zone, that is to say that comprising and gathering the electrodes, on which the ligands are respectively fixed, and this allowing n ' any relative position between the two end zones comprising the electrical terminals and the electrodes respectively, thanks to the flexibility of the support, at least in its intermediate zone between the two said end zones.
- the electrodes can be soaked in a liquid solution, while the electrical terminals are in the open air and / or dry. This makes it possible, under excellent technical or practical conditions: - addressing the ligands in an extreme zone, with a measurement by electrical detection in another extreme zone,
- the offset between the extreme zones makes it possible to have a sensor according to the invention, in each well, with its active zone, that is to say that comprising the electrodes at bottom of said well and its electrical zone, that is to say that comprising the electrical terminals, as a peripheral, for example on the edge of the microplate.
- a sensor according to the present invention makes it possible to manufacture and implement biochips according to an approach totally different from the traditional approach, by:
- each biochip cut in the place of its use for example at the bottom of a well of a micro-titration plate, by adapting to the conformation of the place of use.
- FIG. 1 represents on an enlarged scale a biosensor of the biochip type, according to the present invention
- FIG. 2 represents a sectional view along line II / II of the figure
- FIGS. 3 and 4 respectively represent two other embodiments of the present invention
- FIG. 5 represents a detail, (at the left end according to the representation of the Figure 2), of another embodiment of the present invention.
- an electrically or electronically insulating material for example a varnish
- the multiplicity of electrodes (4) is arranged in a zone (la) opposite to a zone (lb) in which the multiplicity of electrical terminals (5) are grouped together, and on the other hand the support (2), because of the flexibility or suppleness of the insulating material used, is arranged to be flexible at least in an intermediate zone (le), at least around at least an axis having a direction perpendicular to the direction of alignment of the operating arrangement of the electrodes (31 and 32) in the area (la), and of the grouping of the electrical terminals (5) in the area (lb).
- Each assembly composed of an electrode (31) and an electrode (32) can be seen as a single electrode comprising two adjacent heads, connected to each other.
- another electrically or electronically conductive track (7) travels on the other face (2b) of the support (2), from another electrical terminal (8) arranged on the face (2b) of the support thus made useful; this terminal (8) is discovered to be connected to a potential of reference, and one end (8 a) of the track (7) is covered with a layer (9) of the electronically insulating material, for example a varnish.
- electrically or electronically conductive pass between, respectively two other electrical terminals (8 and 11), to be connected to a reference potential, disposed respectively on one (2a) and the other (2b) faces of the support (2), and respectively two ends (8a) and (10a), each covered with electrically or electronically insulating material, for example a varnish.
- the track (7) and or the track (10) thus described can be assigned to the electric shielding of the arrangement of the electrodes (31 and 32), in order to guard against electromagnetic radiation disturbing the addressing signals or of measurement.
- at least one electrical terminal (4) is disposed on the other face (2b) of the support (2), a face also useful within the meaning of the present invention, and the track (5) which corresponds to it crosses the thickness of the support (2).
- This arrangement allows electrical contact to be made on the side opposite the stud (31), so that the latter possibly in contact with a liquid is electrically accessible in an area outside said liquid.
- a plurality of ligands are each fixed in multiple number, on the electrodes (31 and / or 32), respectively different.
- Example A sensor according to the invention, or “flexo-chip”, is implemented, before or after addressing, or before or after hybridization, as shown diagrammatically in FIG. 6, with the following reference numbers: 1) sensor
- a flexo-chip according to the invention is addressed as follows: - a flexo-chip (1) is immersed in a copolymerization solution (21) containing 20 mM of pyrrole and 1 ⁇ M of pyrrole-ODNl (1 pyrrole-ODN unit for 20,000 pyrrole units). A potential of + 1N / DHW is applied for a time t necessary to pass a quantity of charge equal to 2.7 mC.cm "2 per stud,
- the flexo-chip (1) is immersed in a solution (21) containing the same pyrrole / pyrrole-OD ⁇ molar ratio but with a different OD ⁇ (OD ⁇ 2),
- nucleotide sequences of the deposited probes are by way of example:
- ODN 5 SE01-1262P TT ⁇ TTTTTTGTATGGTTTATTTGATGCTTACTGGTATTATTGCAGATAAATTACACTCT
- ODN 6 YDR411C-894P TTTTTTTTTTGTCTCAAACCAGTGGCACAGATTCAGGCAGAGCTTCTGGAAGTCAATTAA
- ODN 7 YEF3-2800P T TTTTTTTTGCTTTGTCTAAGGCTTTGAAGGAATTTGAAGGTGGTGTTATTATCATTAC '
- ODN 8 YNL208 -542P TTTTTTTTTTCCTCAGGAA ⁇ TCGGGGGCCAAGGTCGTCAAGGATTCAATGGCGGTTCACG
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- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003271819A AU2003271819A1 (en) | 2002-07-19 | 2003-07-18 | Flexible biochip |
EP03753656A EP1523786A2 (fr) | 2002-07-19 | 2003-07-18 | Biopuce flexible |
US10/520,105 US20060049046A1 (en) | 2002-07-19 | 2003-07-18 | Flexible biochip |
JP2004522267A JP2005534004A (ja) | 2002-07-19 | 2003-07-18 | 可撓性バイオチップ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0209232A FR2842603A1 (fr) | 2002-07-19 | 2002-07-19 | Biopuce flexible |
FR02/09232 | 2002-07-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2004010537A2 true WO2004010537A2 (fr) | 2004-01-29 |
WO2004010537A3 WO2004010537A3 (fr) | 2004-04-08 |
WO2004010537B1 WO2004010537B1 (fr) | 2004-05-27 |
Family
ID=29797603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002287 WO2004010537A2 (fr) | 2002-07-19 | 2003-07-18 | Biopuce flexible |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060049046A1 (fr) |
EP (1) | EP1523786A2 (fr) |
JP (1) | JP2005534004A (fr) |
AU (1) | AU2003271819A1 (fr) |
FR (1) | FR2842603A1 (fr) |
WO (1) | WO2004010537A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8166835B2 (en) | 2007-04-12 | 2012-05-01 | Fuji Xerox Co., Ltd. | Sensor chip and inspection device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1915633A1 (fr) * | 2005-08-09 | 2008-04-30 | Koninklijke Philips Electronics N.V. | Micropuce a cote avant accessible |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4295695A (en) * | 1978-10-12 | 1981-10-20 | International Computers Limited | Electrical connectors |
US5556300A (en) * | 1994-11-14 | 1996-09-17 | The Whitaker Corporation | End connection for a flexible shielded cable conductor |
US5744305A (en) * | 1989-06-07 | 1998-04-28 | Affymetrix, Inc. | Arrays of materials attached to a substrate |
US6190196B1 (en) * | 1996-09-27 | 2001-02-20 | The Whitaker Corporation | Cable connector assembly |
US6392162B1 (en) * | 2000-11-10 | 2002-05-21 | Chris Karabatsos | Double-sided flexible jumper assembly and method of manufacture |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6015880A (en) * | 1994-03-16 | 2000-01-18 | California Institute Of Technology | Method and substrate for performing multiple sequential reactions on a matrix |
US7014992B1 (en) * | 1996-11-05 | 2006-03-21 | Clinical Micro Sensors, Inc. | Conductive oligomers attached to electrodes and nucleoside analogs |
US6134461A (en) * | 1998-03-04 | 2000-10-17 | E. Heller & Company | Electrochemical analyte |
US6475360B1 (en) * | 1998-03-12 | 2002-11-05 | Lifescan, Inc. | Heated electrochemical cell |
US6287451B1 (en) * | 1999-06-02 | 2001-09-11 | Handani Winarta | Disposable sensor and method of making |
-
2002
- 2002-07-19 FR FR0209232A patent/FR2842603A1/fr active Pending
-
2003
- 2003-07-18 US US10/520,105 patent/US20060049046A1/en not_active Abandoned
- 2003-07-18 WO PCT/FR2003/002287 patent/WO2004010537A2/fr not_active Application Discontinuation
- 2003-07-18 AU AU2003271819A patent/AU2003271819A1/en not_active Abandoned
- 2003-07-18 JP JP2004522267A patent/JP2005534004A/ja active Pending
- 2003-07-18 EP EP03753656A patent/EP1523786A2/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4295695A (en) * | 1978-10-12 | 1981-10-20 | International Computers Limited | Electrical connectors |
US5744305A (en) * | 1989-06-07 | 1998-04-28 | Affymetrix, Inc. | Arrays of materials attached to a substrate |
US5556300A (en) * | 1994-11-14 | 1996-09-17 | The Whitaker Corporation | End connection for a flexible shielded cable conductor |
US6190196B1 (en) * | 1996-09-27 | 2001-02-20 | The Whitaker Corporation | Cable connector assembly |
US6392162B1 (en) * | 2000-11-10 | 2002-05-21 | Chris Karabatsos | Double-sided flexible jumper assembly and method of manufacture |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8166835B2 (en) | 2007-04-12 | 2012-05-01 | Fuji Xerox Co., Ltd. | Sensor chip and inspection device |
Also Published As
Publication number | Publication date |
---|---|
EP1523786A2 (fr) | 2005-04-20 |
FR2842603A1 (fr) | 2004-01-23 |
JP2005534004A (ja) | 2005-11-10 |
US20060049046A1 (en) | 2006-03-09 |
WO2004010537A3 (fr) | 2004-04-08 |
WO2004010537B1 (fr) | 2004-05-27 |
AU2003271819A1 (en) | 2004-02-09 |
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