WO2006078022A1 - センサチップの製造方法及びセンサチップ - Google Patents
センサチップの製造方法及びセンサチップ Download PDFInfo
- Publication number
- WO2006078022A1 WO2006078022A1 PCT/JP2006/300982 JP2006300982W WO2006078022A1 WO 2006078022 A1 WO2006078022 A1 WO 2006078022A1 JP 2006300982 W JP2006300982 W JP 2006300982W WO 2006078022 A1 WO2006078022 A1 WO 2006078022A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor chip
- substrate
- tapes
- tape
- manufacturing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
- G01N27/3272—Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
Definitions
- the present invention relates to a method for manufacturing a sensor chip, in particular, a method for manufacturing a biosensor chip, capable of easily quantifying and detecting a chemical substance contained in a sample.
- the present invention further relates to a sensor chip that can be manufactured by this method of manufacturing a sensor chip.
- a nanosensor chip is obtained by introducing a trace amount sample into a reaction part in the chip, causing a biochemical reaction such as an enzyme reaction or an antigen-antibody reaction to the trace amount sample in the chip, and obtaining the biochemical reaction.
- Sensor chip that outputs information to the outside of the chip, for example, as a blood glucose sensor or urine sugar sensor that measures glucose level (blood glucose level) or urine sugar level in blood Used for health checkups (self-care).
- JP-A-2001-159618 describes an example of such a biosensor chip.
- This biosensor chip has a cavity (hollow reaction part) into which a liquid sample is introduced by capillary action, and analyzes the components in the liquid sample by the reaction between the introduced liquid sample and the reagent.
- Chip (Claim 1) in addition to the hollow reaction part, has an electrode system (detection means) consisting of a working electrode and a counter electrode, a lead (output terminal) for outputting the detected signal to the outside, and a sample introduction port Is.
- FIG. 2 For example, as a method of collectively forming the hollow reaction portion or the like, as shown in FIG. 2, a plurality of hollow portions or grooves forming the hollow reaction portion on a sheet forming a plurality of substrates.
- the A method of covering a double-sided adhesive (adhesive) sheet (spacer layer) at a position corresponding to the substrate is mentioned and is generally performed.
- the hollow reaction part formed in this way is required to have the characteristics that the volume variation between sensor chips is small, the positional deviation from a predetermined position is small, and so on. In order to enable detection, the feature that the thickness of the spacer layer is thin and the volume (small volume) is small is also required.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-159618 (Claim 1)
- the present invention provides a method for manufacturing a sensor chip that can further reduce the volume variation and positional deviation of the hollow reaction portion, compared with the conventional method of covering the double-sided adhesive (adhesive) sheet. It is an object of the present invention to provide a sensor chip manufacturing method with a small volume variation and positional deviation, and a sensor chip that can be manufactured by this method, even if the reaction part has a small volume.
- the present inventor has applied two or more adhesive or adhesive tapes on a sheet forming a plurality of substrates or a plurality of substrates so as to provide a gap between the tapes.
- the inventors have found that the above problems can be achieved by a method of forming a hollow reaction part by a gap between loops, and have completed the present invention.
- the present invention provides, as claim 1, a sensor having a substrate, a cover layer, a spacer layer provided between the substrate and the cover layer, and a hollow reaction portion provided in the spacer layer.
- a method for manufacturing a subchip in which a spacer layer is formed by attaching two or more adhesive or adhesive tapes on a sheet or a plurality of substrates forming a plurality of substrates, and 1 or
- a method for producing a sensor chip characterized by comprising a step of forming a hollow reaction part by a plurality of gaps.
- This method is characterized in that two or more adhesives or adhesive tapes are pasted on a sheet or a plurality of substrates forming a plurality of substrates.
- the target to which the tape is applied may be a sheet that becomes the substrate of each sensor chip after being separated into pieces by cutting or the like, or a plurality of substrates of individual sensor chips arranged side by side. Also, productivity is preferable A sheet for forming a plurality of substrates is used.
- Two or more adhesive or adhesive tapes are attached with a gap between each other.
- a hollow reaction part is formed by the gap between the tapes, and a side surface of each tape becomes a side wall of the hollow reaction part, and each tape forms a so-called spacer layer.
- the number of tapes is 3 or more, a plurality of gaps are formed, and a plurality of hollow reaction portions may be formed by these.
- the present invention is to form the side wall of the hollow reaction portion with two tapes instead of the conventionally used sheet.
- this method it is possible to reduce the volume variation and the positional deviation of the hollow reaction part as compared with the conventional method of covering the sheet. This effect is particularly remarkable when the volume of the hollow reaction part is small. Furthermore, it is easy to adjust the position of the side wall of the hollow reaction part, which is necessary for obtaining a hollow reaction part of a predetermined size.
- Claim 2 is a manufacturing method of the sensor chip, and corresponds to this preferable mode.
- the tape As another method for attaching the tape to the substrate, there may also be a method in which two or more tapes are attached to a sheet for forming a plurality of substrates or a plurality of substrates in order of the respective tape end forces. Can be mentioned. This method is preferable from this point of view because the tape is less likely to sag compared to a method in which a tape tensioned in the air is moved up and down and attached to the substrate. Claim 4 corresponds to this preferred embodiment.
- Claim 5 corresponds to this preferred embodiment, and is a method for manufacturing the sensor chip, wherein a jig having a structure for adhering a tape while keeping a gap between two or more tapes uniform is used.
- the present invention also provides a method for manufacturing a sensor chip, characterized in that a tape is attached.
- the hollow reaction part of the sensor chip has a small thickness. Therefore, the material for forming the spacer layer including the hollow reaction part, that is, the double-sided adhesion described above
- the (adhesion) sheet or tape is preferably thin.
- the thickness of the sheet normally used is about 250 / zm, and it is considered that a thin film sheet of 150 / zm thickness is difficult to handle.
- the problem of tape slack is less than in the case of using the above-mentioned sheet, particularly when the tape is affixed using the above-mentioned jig, Even in the case of a thin film tape, the problem of looseness does not easily occur. Therefore, by using a thin film tape, it is possible to easily form a small volume hollow reaction part. Therefore, according to the present invention, it is possible to manufacture an excellent sensor chip that can handle a small amount of sample by setting the thickness of the tape to 150 ⁇ m or less. A sensor chip can be manufactured.
- Claim 6 corresponds to this preferred embodiment, and provides the method for manufacturing a sensor chip, wherein the tape has a thickness of 150 m or less. is there.
- a single sheet that forms a substrate and also forms a cover layer as a target for applying a plurality of tapes, and a portion of the sheet on which the substrate is formed After applying the tape on top and forming other sensor chip elements such as detection means, if necessary, the tape is also applied to the side on which the cover layer is formed and the sensor chip elements are formed. After this, the sheet is folded in two around the boundary portion between the substrate forming side and the cover layer forming side, that is, the folding line that divides the sheet into approximately two equal parts, and the cover layer side is attached to the tape. According to the aligning method, it is possible to perform the bonding on the substrate side and the cover layer side with high positional accuracy, which is preferable. Claim 7 This corresponds to this preferred embodiment.
- Folding in two around the fold line is a method of folding in two at the position of the fold line, and at the position of two straight lines that are parallel to the fold line and equidistant from the fold line. Also included is a method of bending so that the cross section becomes a U-shape.
- the present invention provides a substrate, a cover layer, a spacer layer provided between the substrate and the cover layer, and the spacer, which can be manufactured by this manufacturing method, in addition to the method for manufacturing the sensor chip.
- a sensor chip having a hollow reaction part provided in a spacer layer, wherein the spacer layer and the hollow reaction part are formed by two or more adhesive or adhesive tapes. (Claim 8).
- the sensor chip of the present invention is particularly suitably used as a biosensor chip.
- Claim 9 provides a sensor chip characterized by being the biosensor chip.
- the biosensor chip of the present invention is used as a blood glucose level sensor for measuring glucose level (blood glucose level) and urinary glucose level in blood, and as a urinary glucose level sensor for self-management and prevention of diabetes, for home health check (self-care), etc. Can be used.
- the method for producing a sensor chip of the present invention it is possible to reduce the volume variation and the positional deviation of the hollow reaction part.
- the conventional double-sided adhesive (adhesive) sheet is applied to the substrate, it is difficult to reduce the volume variation and positional displacement, and this problem is particularly noticeable when the volume of the hollow reaction part is small.
- the sensor chip of the present invention that can be manufactured by this method can be suitably used as a nanosensor chip such as a blood glucose level sensor, and can be used for home health diagnosis (self-care) and the like.
- FIG. 1 is an explanatory plan view showing a method for producing a sensor chip of the present invention.
- FIG. 2 is an explanatory plan view showing a conventional method for manufacturing a sensor chip.
- FIG. 3 is a conceptual diagram showing a jig used in the sensor chip manufacturing method of the present invention.
- BEST MODE FOR CARRYING OUT THE INVENTION the best mode for carrying out the present invention will be described. Note that the present invention is not limited to this embodiment, and can be changed to other forms as long as the gist of the present invention is not impaired.
- an insulating material film is selected.
- the insulating material ceramics, glass, paper, biodegradable material (for example, polylactic acid) Microbial production polyester, etc.), Polysalt resin, Polypropylene, Polystyrene, Polycarbonate, Atalinole, Polybutylene terephthalate, Polyethylene terephthalate (PET), etc.
- Thermosetting resin such as epoxy resin, UV A plastic material such as cured resin can be exemplified.
- Plastic materials such as polyethylene terephthalate are preferred because of their mechanical strength, flexibility, and ease of chip production and processing, especially ease of folding.
- the preferred range of the thickness of the substrate and the cover layer varies depending on the application of the sensor chip and is not particularly limited. However, in the case of a neurosensor chip such as a blood glucose sensor, about 100 to 300 m is preferable.
- the hollow reaction part (formed by two or more tapes) of the sensor chip of the present invention is a part where a sample is introduced when the sensor chip is used, and the introduced sample chemically reacts.
- chemicals such as a catalyst and an enzyme for causing a biochemical reaction are fixed therein, and these promote the chemical reaction of the sample.
- this portion includes a glucose oxidase layer, a glucose oxidase electron acceptor (mediator) mixture layer, a glucose oxidase-albumin mixture layer. Or a dulca oxidase electron acceptor albumin mixture layer or the like is formed.
- Samples to be measured such as blood, urine, and aqueous solution samples drawn on the production line, are introduced into the hollow reaction part from the sample introduction port.
- the sample inlet may be provided in one layer of the substrate or the cover, but may be opened in at least one of the side surfaces of the sensor chip.
- a plurality of sample inlets may be provided.
- a straw-like structure provided on both side surfaces of the sensor chip and connecting the hollow reaction parts therebetween is preferable because the sample can be taken in easily.
- a detection means is provided in the hollow reaction part.
- the detection means is composed of at least two electrodes. These electrodes are usually referred to as a working electrode and a counter electrode.
- the force detection means may further include other electrodes such as a reference electrode and other means.
- the electrode performs functions such as applying a predetermined voltage to the hollow reaction part and measuring the current value generated by the reaction. Detection and quantification of chemical substances in the sample are performed based on the signal from the electrode. Is called. Examples of the electrode include a carbon electrode and can be formed by screen printing on a substrate.
- an output terminal (lead wire) portion of the electrode is further formed in or between the substrate, the spacer layer or the force bar layer, It can be electrically connected to the outside of the subchip, and a predetermined voltage is applied through this output terminal portion, and a current value is measured.
- the drug may be applied before or after the tape is applied. However, the drug is applied after the tape is applied because of easy drug application work and easy positioning of the drug application. It is usually preferred.
- a rubber adhesive using natural rubber, SBR, block SIS or the like, an acrylic adhesive using an acrylic ester copolymer, or silicone rubber is used as the adhesive layer
- the thickness of the adhesive layer is sufficient to achieve the desired adhesive strength, both sides including non-woven fabric such as paper, PP, PE, polyester, polyamide, etc., polyester film, etc. as an intermediate support layer for improved handling Tape is desired.
- the thickness is not particularly limited, but in order to obtain a small volume of the hollow reaction part, the thickness is preferably 100 / zm or less as described above, which is preferably thinner.
- FIG. 1 is an explanatory plan view showing the manufacturing method of the present invention.
- two tapes 2 and 3 are bonded onto a sheet 1 forming a plurality of substrates la while forming a gap 4 having a constant width.
- Each substrate la has a rectangular shape and is arranged so that the long sides thereof are connected to each other, and the short side portions thereof are arranged in a substantially straight line.
- the two tapes 2 and 3 are the forces that have been picked up by the reels 5 and 6, respectively. They are attached in order from the end of each tape onto the parallel substrate 1.
- Nitto Denko Co., Ltd. No. 5606 core PET thickness 12 / ⁇ ⁇ , 60 m thick including double-sided adhesive layer
- a cover layer (not shown) is attached thereon, and the gap 4 becomes a hollow portion between the substrate 1 and the cover layer.
- This hollow part forms the hollow reaction part of the sensor chip.
- detection means, output terminals, etc. (not shown) are formed on the substrate 1.
- the cover layer is applied, the sheet 1 is cut along the cutting line lb, and at the same time, the tapes 2 and 3 are cut at the same position to obtain individual sensor chips.
- FIG. 2 is an explanatory plan view showing a substrate sheet 7 (FIG. 2a) for forming a plurality of substrates and a double-sided adhesive sheet 8 (FIG. 2b) in the method of covering the double-sided adhesive sheet on the substrate.
- 7 a is a portion forming a substrate, and these are rectangular, and are arranged in parallel so that adjacent long sides face each other.
- a double-sided pressure-sensitive adhesive sheet 8 having a hollow portion 9 is placed on the substrate sheet 7. Thereafter, a cover layer (not shown) is adhered thereon, and the hollow portion 9 between the substrate sheet 7 and the cover layer forms a hollow reaction portion of the sensor chip. After that, the substrate sheet 7 and the double-sided pressure-sensitive adhesive sheet 8 are cut to obtain individual sensor chips.
- FIG. 3 is a conceptual diagram showing a jig having a structure for attaching a tape while maintaining a uniform gap between two tapes that can be used in the present invention.
- Two tapes 11 and 12 are attached to a reel (not shown) and can be applied in order from the respective tape ends 14 and 15 while maintaining a certain gap 13.
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06712198A EP1843151A1 (en) | 2005-01-24 | 2006-01-23 | Sensor chip manufacturing method and sensor chip |
CA002595870A CA2595870A1 (en) | 2005-01-24 | 2006-01-23 | Method for fabricating sensor chip, and sensor chip |
AU2006206942A AU2006206942A1 (en) | 2005-01-24 | 2006-01-23 | Sensor chip manufacturing method and sensor chip |
NO20073883A NO20073883L (no) | 2005-01-24 | 2007-07-24 | Fremgangsmate ved produksjon av sensorbrikker, og sensorbrikker. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005015994A JP2006201136A (ja) | 2005-01-24 | 2005-01-24 | センサチップの製造方法及びセンサチップ |
JP2005-015994 | 2005-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006078022A1 true WO2006078022A1 (ja) | 2006-07-27 |
Family
ID=36692394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/300982 WO2006078022A1 (ja) | 2005-01-24 | 2006-01-23 | センサチップの製造方法及びセンサチップ |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1843151A1 (ja) |
JP (1) | JP2006201136A (ja) |
KR (1) | KR20070100318A (ja) |
CN (1) | CN101137900A (ja) |
AU (1) | AU2006206942A1 (ja) |
CA (1) | CA2595870A1 (ja) |
NO (1) | NO20073883L (ja) |
RU (1) | RU2007128525A (ja) |
WO (1) | WO2006078022A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104407023B (zh) * | 2014-11-14 | 2017-01-25 | 无锡信大气象传感网科技有限公司 | 一种传感器元件 |
CN106814110B (zh) * | 2017-01-05 | 2020-11-06 | 华中科技大学 | 一种可拉伸半导体电阻式柔性气体传感器及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001088526A1 (fr) * | 2000-05-16 | 2001-11-22 | Arkray, Inc. | Biocapteur et production de ce biocapteur |
-
2005
- 2005-01-24 JP JP2005015994A patent/JP2006201136A/ja not_active Withdrawn
-
2006
- 2006-01-23 WO PCT/JP2006/300982 patent/WO2006078022A1/ja active Application Filing
- 2006-01-23 EP EP06712198A patent/EP1843151A1/en not_active Withdrawn
- 2006-01-23 CA CA002595870A patent/CA2595870A1/en not_active Abandoned
- 2006-01-23 KR KR1020077016870A patent/KR20070100318A/ko not_active Application Discontinuation
- 2006-01-23 RU RU2007128525/28A patent/RU2007128525A/ru not_active Application Discontinuation
- 2006-01-23 AU AU2006206942A patent/AU2006206942A1/en not_active Abandoned
- 2006-01-23 CN CNA2006800072323A patent/CN101137900A/zh active Pending
-
2007
- 2007-07-24 NO NO20073883A patent/NO20073883L/no not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001088526A1 (fr) * | 2000-05-16 | 2001-11-22 | Arkray, Inc. | Biocapteur et production de ce biocapteur |
Also Published As
Publication number | Publication date |
---|---|
RU2007128525A (ru) | 2009-01-27 |
JP2006201136A (ja) | 2006-08-03 |
CA2595870A1 (en) | 2006-07-27 |
NO20073883L (no) | 2007-10-24 |
KR20070100318A (ko) | 2007-10-10 |
EP1843151A1 (en) | 2007-10-10 |
AU2006206942A1 (en) | 2006-07-27 |
CN101137900A (zh) | 2008-03-05 |
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