JP5475010B2 - マイクロ流体単一粒子解析に関する指型電極 - Google Patents
マイクロ流体単一粒子解析に関する指型電極 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
- G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
- G01N15/131—Details
- G01N15/132—Circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1023—Microstructural devices for non-optical measurement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
- G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
- G01N2015/135—Electrodes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/125—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by capacitive pick-up
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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Description
により算出されることができる。ここで、
は、ロックイン増幅器31上でセットされることができる位相である(デフォルトではゼロにセットされる)。
に関して、
となるようにされる。長さ7のバーカーコードの例は、+1、+1、+1、−1、−1、+1、−1である。これは、例えば図4に示される互いに嵌合された指型構造に対応する。
の依存性が暗示されることになる。表記は単にgとなる。また、パラメータω及びσが代替的に使用されることになる。これは、比較的任意の表記理由のためになされる。測定されたデータf(t)に関するテンプレート関数の投影(又は、内積、たたみ込み、相関又は要素)は、
により与えられる。
の値の範囲に関する
を示す。表面プロット線は、明確な最大を呈し、これは、トレースの始まりからの値t0=1.2msに対応し、
が成り立つ。
を算出するのに使用される幅パラメータは、ω=0.3にセットされた。測定されたトレースf(t)及び最良のフィットである
が、挿入図に示される。見て分かるように、良好なフィットが得られる。
により与えられる。
を変化させることにより実現されることができる。見て分かるように、ccトレースは、ほとんどの時間において上の図におけるはっきり識別可能な(RBC)イベントに対応するピークを示す。いくつかのイベント(7ms周辺)は、2倍又は3倍の細胞イベントとして解釈されることができる。特に興味深いのは22ms周辺でのイベントである。相関係数は明確にピークを示すが、上の図では、何らイベントが見られることができない。3つ目のダイアグラムにおける振幅トレースもピークを示し、4つ目及び5つ目のダイアグラムにおけるω及びtδパラメータも許容可能な値を示す。このイベントは、血小板イベントとして解釈される。
Claims (14)
- 搬送液体に懸濁される粒子を調査する測定デバイスであって、前記粒子の電気的測定を行う測定電極の第1のペアを少なくとも有し、前記測定電極のペアにおける少なくとも1つの電極が、複数のフィンガーを持つ指型電極であり、前記フィンガーが、空間的に不規則なパターンで配置される、測定デバイス。
- 前記電極ペアの両方の電極が、指型電極である、請求項1に記載の測定デバイス。
- 前記パターンが、正規化された自己相関特性を定めるシーケンスコードを定める信号を生成するよう構成される、請求項1に記載の測定デバイス。
- 前記シーケンスコードが、疑似乱数シークエンスに対応する、請求項3に記載の測定デバイス。
- 測定電極の第2のペアを更に有する、請求項1に記載の測定デバイス。
- 前記測定電極の第2のペアが、少なくとも1つの指型電極を持ち、前記電極の第1のペアにおける1つの電極の前記フィンガーは、前記電極の第2のペアにおける1つの電極の前記フィンガーと互いに嵌合される、請求項5に記載の測定デバイス。
- 少なくとも1つの指型電極構造体が、可変電極フィンガー幅及び/又は可変間隔幅を持つ、請求項1乃至6のいずれかに記載の測定デバイス。
- 請求項1に記載の測定デバイスを有するマイクロ流体システム。
- 請求項8に記載のマイクロ流体システムを有する細胞ソーター。
- 搬送液体において懸濁される粒子を調査する方法において、
少なくとも1つの測定電極ペアを用いて少なくとも1つの粒子に関する電気的測定処理を行い、測定信号を生成するステップであって、前記電極ペアにおける少なくとも1つの電極が、空間的に不規則なパターンで配置される複数のフィンガーを持つ指型電極である、ステップと、
前記搬送液体における粒子の存在を前記測定信号から決定するステップとを有する、方法。 - 電気的測定処理を実行するステップが、インピーダンス測定を行うステップを有する、請求項10に記載の方法。
- 電気的測定処理を実行するステップが、インピーダンス分光法を行うステップを有する、請求項11に記載の方法。
- 基準測定を行うステップと、前記測定信号と前記基準測定の結果とを比較するステップとを更に有する、請求項10に記載の方法。
- 前記搬送液体における粒子の存在を前記測定信号から決定するステップが、前記少なくとも1つの測定電極ペアの前記フィンガー間の粒子の通過を表すモデル曲線を前記測定信号のセクションと相関させるステップと有し、前記電極ペアにおける少なくとも1つの電極が、複数のフィンガーを持つ指型電極である、請求項10に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP09151418.2 | 2009-01-27 | ||
EP09151418A EP2211164A1 (en) | 2009-01-27 | 2009-01-27 | Fingered electrodes for microfluidic single particle analysis |
PCT/IB2010/050355 WO2010086797A1 (en) | 2009-01-27 | 2010-01-27 | Fingered electrodes for microfluidic single particle analysis |
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JP2012515918A JP2012515918A (ja) | 2012-07-12 |
JP5475010B2 true JP5475010B2 (ja) | 2014-04-16 |
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JP2011547038A Active JP5475010B2 (ja) | 2009-01-27 | 2010-01-27 | マイクロ流体単一粒子解析に関する指型電極 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8841924B2 (ja) |
EP (2) | EP2211164A1 (ja) |
JP (1) | JP5475010B2 (ja) |
CN (1) | CN102301221B (ja) |
WO (1) | WO2010086797A1 (ja) |
Families Citing this family (22)
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EP2490020A1 (en) | 2011-02-18 | 2012-08-22 | Koninklijke Philips Electronics N.V. | Measurement chip, microfluidic device and method of measurement chip manufacture |
GB201306914D0 (en) | 2013-04-16 | 2013-05-29 | Univ Southampton | Apparatus for electrically measuring individual particles flowing in a liquid |
GB201306913D0 (en) * | 2013-04-16 | 2013-05-29 | Univ Southampton | A method of electrically measuring the size of individual particles flowing in a liquid |
DE102013105953B4 (de) | 2013-06-07 | 2015-07-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Detektion von strahlungsemittierenden Partikeln |
BR112016017466B1 (pt) | 2014-01-30 | 2021-05-18 | Hewlett-Packard Development Company, L.P. | dispositivos de captação microfluídica e método |
US10527579B2 (en) | 2014-03-28 | 2020-01-07 | The Board Of Trustees Of The University Of Illinois | Label free analyte detection by electronic desalting and field effect transistors |
AU2014391652B2 (en) | 2014-04-25 | 2018-02-22 | Hewlett-Packard Development Company, L.P. | Diagnostic cassette |
US20150346148A1 (en) * | 2014-05-28 | 2015-12-03 | Agilent Technologies, Inc. | Method and Apparatus for Manipulating Samples Using Optoelectronic Forces |
US9851288B2 (en) * | 2014-11-11 | 2017-12-26 | Agency For Science, Technology And Research | Event-driven coulter counter IC for high throughput particle counting |
EP3230721B1 (en) | 2015-01-30 | 2020-06-03 | Hewlett-Packard Development Company, L.P. | Diagnostic chip |
DE102015110316B4 (de) * | 2015-06-26 | 2021-09-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtungen, Zytometer, Verfahren und Computerprogramm zum Bereitstellen von Information über zumindest eine Sequenz |
CA2999683A1 (en) | 2015-09-30 | 2017-04-06 | Semen Refinement B.V. | Microfluidic device for selection of semen |
TWI593943B (zh) * | 2015-10-19 | 2017-08-01 | 國立清華大學 | 可調變的感測元件 |
US10914669B2 (en) * | 2015-10-22 | 2021-02-09 | Georgia Tech Research Corporation | Electronic sensors for multiplexed detection of particles on microfluidic chips and uses thereof |
EP3449236B1 (en) | 2016-04-29 | 2024-03-13 | The Solubility Company Oy | Method and device for physicochemical characterization of materials |
EP3418718B1 (en) * | 2017-06-23 | 2021-01-13 | Cellix Limited | System for improved identification of particles and cells |
EP3418719A1 (en) * | 2017-06-23 | 2018-12-26 | Cellix Limited | System and method for improved identification of particles or cells |
CN108375613B (zh) * | 2018-04-08 | 2023-08-22 | 浙江大学 | 三维立体叉指电极 |
WO2020097488A1 (en) * | 2018-11-08 | 2020-05-14 | Georgia Tech Research Corporation | Parallel electrodes sensor |
EE05830B1 (et) | 2019-02-08 | 2020-12-15 | Tallinna Tehnikaülikool | Mikrovooluti meetod ja seade |
US20220212187A1 (en) * | 2019-04-29 | 2022-07-07 | Siemens Healthcare Diagnostics Inc. | Liquid sensor assemblies, apparatus, and methods |
GB2588422A (en) * | 2019-10-23 | 2021-04-28 | Univ Loughborough | Shape analysis device |
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US5132824A (en) * | 1990-08-31 | 1992-07-21 | Bell Communications Research, Inc. | Liquid-crystal modulator array |
US6377057B1 (en) * | 1999-02-18 | 2002-04-23 | The Board Of Trustees Of The Leland Stanford Junior University | Classification of biological agents according to the spectral density signature of evoked changes in cellular electric potential |
ES2217208T3 (es) * | 2002-02-01 | 2004-11-01 | Leister Process Technologies | Componente microfluido y procedimiento para la clasificacion de particulas en un fluido. |
US20030203384A1 (en) * | 2002-03-08 | 2003-10-30 | Chafin David R. | Multiplex detection of biological materials in a sample |
JP2005304376A (ja) * | 2004-04-21 | 2005-11-04 | Kri Inc | 生体検出方法および生体検出装置 |
DE102004059650B4 (de) * | 2004-12-10 | 2006-09-28 | Robert Bosch Gmbh | Resistive Partikelsensoren mit Messelektroden |
US7629797B2 (en) * | 2006-04-05 | 2009-12-08 | California Institute Of Technology | Resonance-induced sensitivity enhancement method for conductivity sensors |
WO2009014792A2 (en) * | 2007-05-11 | 2009-01-29 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Electrical detection using confined fluids |
JP5620642B2 (ja) * | 2008-01-30 | 2014-11-05 | パロ・アルト・リサーチ・センター・インコーポレーテッドPaloAlto ResearchCenterIncorporated | 符号器付センサを用いる方法、符号器付センサ及びシステム |
KR20110089267A (ko) * | 2008-10-24 | 2011-08-05 | 엡슨 토요콤 가부시키 가이샤 | 탄성 표면파 공진자, 탄성 표면파 발진기 및 탄성 표면파 모듈 장치 |
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2009
- 2009-01-27 EP EP09151418A patent/EP2211164A1/en not_active Ceased
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2010
- 2010-01-27 JP JP2011547038A patent/JP5475010B2/ja active Active
- 2010-01-27 US US13/146,244 patent/US8841924B2/en active Active
- 2010-01-27 EP EP10702767.4A patent/EP2391879B1/en active Active
- 2010-01-27 CN CN201080005655.8A patent/CN102301221B/zh active Active
- 2010-01-27 WO PCT/IB2010/050355 patent/WO2010086797A1/en active Application Filing
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Publication number | Publication date |
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EP2391879A1 (en) | 2011-12-07 |
JP2012515918A (ja) | 2012-07-12 |
WO2010086797A1 (en) | 2010-08-05 |
CN102301221A (zh) | 2011-12-28 |
EP2391879B1 (en) | 2015-11-04 |
CN102301221B (zh) | 2014-03-26 |
US8841924B2 (en) | 2014-09-23 |
US20110279130A1 (en) | 2011-11-17 |
EP2211164A1 (en) | 2010-07-28 |
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