JP4063770B2 - 検出装置および検出方法 - Google Patents
検出装置および検出方法 Download PDFInfo
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- JP4063770B2 JP4063770B2 JP2003571724A JP2003571724A JP4063770B2 JP 4063770 B2 JP4063770 B2 JP 4063770B2 JP 2003571724 A JP2003571724 A JP 2003571724A JP 2003571724 A JP2003571724 A JP 2003571724A JP 4063770 B2 JP4063770 B2 JP 4063770B2
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6813—Hybridisation assays
- C12Q1/6816—Hybridisation assays characterised by the detection means
- C12Q1/6825—Nucleic acid detection involving sensors
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- 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
- G01N27/403—Cells and electrode assemblies
- G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
- G01N27/4145—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS specially adapted for biomolecules, e.g. gate electrode with immobilised receptors
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2565/00—Nucleic acid analysis characterised by mode or means of detection
- C12Q2565/60—Detection means characterised by use of a special device
- C12Q2565/607—Detection means characterised by use of a special device being a sensor, e.g. electrode
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- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
[1]F. Sterky, J. Lundeberg, “Sequence of genes and genoumes,” Journal of Biotechnology, vol.76, pp.1-31, 2000.
[2]Mathews, Holde, Ahern, Biochemistry, 2nd Edn
[3]Yuri A. Shakhov, Pal Nyren, ‘A Sensitive and Rapid Method for Determination of Pyophosphate Activity’ Acta Chemica Scandinavica B 36(1982) pp 689-694
[4]R. Buck, “Electrochemistry of Ion-Selective Electrodes,” Sensors and Actuators, (1), pp.197-260, 1981
[5]P. Woias, L. Meixner, D. Amandi, et. al, “Modelling the short-time response of ISFET sensors,” Sensors and Actuators B, 24-25, pp.211-217, 1995
[6]Taor, S. and Richardson, C.C, “DNA Sequence analysis with a modified bacteriophage T7 DNA polymerase. Effect of pyrophosphorolysis and metal irons” Journal of Biological Chemistry, pp8322 8328, 1990
[7]L. Victorova, et al., “New substrates of DNA polymerases,” Federation of European Biochemical Societies Letters, 453, pp.6-10, 1999
[8]Hanazato et al., “Integrated Multi-Biosensors Based on an Ion-sensitive Field-Effect Transistor Using Photolithographic Techniques,” IEEE Transactions of Electron Devices, vol.36, pp.1303-1310, 1989.
[9]Matsuo, M. Esashi, “Methods of ISFET fabrication,” Sensors and Actuators, 1, pp.77-96, 1981
[10]N.F. Starodub, W. Torbicz. et. al, “Optimisation methods of enzyme integration with transducers for analysis of irreversible inhibitors,” Sensors and Actuators B, 58, pp.420-426, 1999
[11]Hon-Sum Wong, Marvin White, “A Self-Contained CMOS Integrated pH Sensor,” Electron Devices Meeting,
[12]Alphey Luke, “DNA sequencing: from experimental methods to bioinformatics”
Claims (31)
- 化学反応中に反応中間体を観察する方法であって、該反応に曝されたイオン感応電界効果トランジスタからの電気信号出力を検知し、検知された電気信号をモニタリングして、電気信号中の離散的変動であって化学反応中に生じている反応中間体を示す離散的変動を区別する方法。
- ヌクレオチド鎖の末端への一又は複数のヌクレオチドの挿入を検出する、請求項1に記載の方法。
- ヌクレオチド鎖の末端へのジデオキシヌクレオチド3リン酸(ddNTP)の挿入を検出する、請求項2に記載の方法。
- DNA合成を観察し、電気信号中の離散的変動が一又は複数のデオキシヌクレオチド3リン酸(dNTP)の挿入とジデオキシヌクレオチド3リン酸(ddNTP)の挿入によるDNA合成の終結を示す、請求項1に記載の方法。
- DNAまたはmRNAをシーケンシングするために、変動が起こる時期と変動の大きさをモニタリングする、請求項4に記載の方法。
- サーモサイクリングを含む、請求項4または5に記載の方法。
- 信号対雑音比を向上するために反応ステップと、検出およびモニタリングステップを複数回繰り返す、請求項1ないし6のいずれか1項に記載の方法。
- トランジスタが曝された化学反応に反応して電気出力信号を発生するように配設されたイオン感応電界効果トランジスタと、電気信号中の離散的変動であって、化学反応中に生じている反応中間体を示す離散的変動を区別する手段とを具備する検出装置。
- イオン感応電界効果トランジスタが窒化ケイ素層を有する、請求項8に記載の検出装置。
- イオン感応電界効果トランジスタが酵素結合層を有する、請求項8または9に記載の検出装置。
- 酵素結合層が窒化ケイ素層にわたって設けられている、請求項10に記載の検出装置。
- 酵素結合層がポリメラーゼを含む、請求項11に記載の検出装置。
- イオン感応電界効果トランジスタが、エポキシ樹脂でほぼ覆われている集積回路の一部として設けられ、該電界効果トランジスタそのものはエポキシ樹脂で覆われていない、請求項8ないし12のいずれか1項に記載の検出装置。
- イオン電荷の離散的変動がヌクレオチド鎖の末端への一又は複数のヌクレオチドの挿入を示す、請求項8ないし13のいずれか1項に記載の方法。
- DNAまたはmRNAをシーケンシングするために、離散的変動が起こる時期と局所変動の大きさをモニタリングするように配設されたモニタリング手段をさらに具備する、請求項14に記載の検出装置。
- イオン感応電界効果トランジスタが、ピロリン酸塩加水分解反応に応じて電気出力信号を発生するように構成される、請求項14または15に記載の検出装置。
- イオン感応電界効果トランジスタが、pHが7未満の試薬混合溶液中に配される、請求項16に記載の検出装置。
- イオン感応電界効果トランジスタが、pHが6.8の試薬混合溶液中に配される、請求項17に記載の検出装置。
- 試薬混合溶液がマグネシウムを含有する、請求項17または18に記載の検出装置。
- 酵素結合層を有する第一のトランジスタと非酵素結合層を有する第二のトランジスタの二のイオン感応電界効果トランジスタと、第一および第二トランジスタによって発生される電気信号間の差を決定して電気出力信号を提供する手段とを具備する、請求項8ないし19のいずれか1項に記載の検出装置。
- 第一および第二トランジスタが第一および第二演算増幅器に連結され、演算増幅器の出力が、電気出力信号を提供する別の増幅器に送られる、請求項20に記載の検出装置。
- 電気出力信号が、試薬混合溶液中に配された電極に送られて、第一および第二トランジスタに印加される電圧が一定のレベルに保たれる、請求項19に記載の検出装置。
- 第一および第二トランジスタが、第一および第二演算増幅器の一部をそれぞれ形成するように配設されている、請求項21または22に記載の検出装置。
- 弱反転領域において作動するように構成された少なくとも一のPMOSトランジスタを含む、請求項8ないし23のいずれか1項に記載の検出装置。
- 弱反転領域において作動するように構成された少なくとも一のNMOSトランジスタを含む、請求項8ないし24のいずれか1項に記載の検出装置。
- 二のイオン感応電界効果トランジスタが両方とも弱反転領域において作動するように構成されたPMOSトランジスタである、請求項20ないし23のいずれか1項に記載の検出装置。
- 二のイオン感応電界効果トランジスタが両方とも弱反転領域において作動するように構成されたNMOSトランジスタである、請求項20ないし23のいずれか1項に記載の検出装置。
- イオン消費またはイオン分離に応じて電気出力信号を発生するように構成される、請求項8ないし27のいずれか1項に記載の検出装置。
- 化学反応の反応中間体をモニタリングするのに十分な速度で電気出力信号を変更できるように構成される、請求項8ないし28のいずれか1項に記載の検出装置。
- 10ミリ秒より速い速度で電気出力信号を変更できるように構成される、請求項29に記載の検出装置。
- 3ミリ秒より速い速度で電気出力信号を変更できるように構成される、請求項30に記載の検出装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0105831.2A GB0105831D0 (en) | 2001-03-09 | 2001-03-09 | Method for dna sequencing utilising enzyme linked field effect transistors |
PCT/GB2002/000965 WO2003073088A2 (en) | 2001-03-09 | 2002-03-11 | Apparatus and method for the detection of localised fluctuactions of ionic charge by ion sensitive field effect transistors during a chemical reaction |
Publications (3)
Publication Number | Publication Date |
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JP2005518541A JP2005518541A (ja) | 2005-06-23 |
JP2005518541A5 JP2005518541A5 (ja) | 2006-01-19 |
JP4063770B2 true JP4063770B2 (ja) | 2008-03-19 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003571724A Expired - Lifetime JP4063770B2 (ja) | 2001-03-09 | 2002-03-11 | 検出装置および検出方法 |
Country Status (7)
Country | Link |
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US (3) | US7686929B2 (ja) |
EP (2) | EP1379863A2 (ja) |
JP (1) | JP4063770B2 (ja) |
DK (1) | DK2211173T3 (ja) |
ES (1) | ES2440571T3 (ja) |
GB (2) | GB0105831D0 (ja) |
WO (1) | WO2003073088A2 (ja) |
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