JP4798183B2 - 電気泳動チップ - Google Patents
電気泳動チップ Download PDFInfo
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- JP4798183B2 JP4798183B2 JP2008201026A JP2008201026A JP4798183B2 JP 4798183 B2 JP4798183 B2 JP 4798183B2 JP 2008201026 A JP2008201026 A JP 2008201026A JP 2008201026 A JP2008201026 A JP 2008201026A JP 4798183 B2 JP4798183 B2 JP 4798183B2
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- 238000001155 isoelectric focusing Methods 0.000 claims description 14
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- 102000004169 proteins and genes Human genes 0.000 description 7
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- 238000005530 etching Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
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- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000005871 repellent Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000002940 repellent Effects 0.000 description 3
- 230000036962 time dependent Effects 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 238000005194 fractionation Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
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- 239000005297 pyrex Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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Classifications
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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
- G01N27/416—Systems
- G01N27/447—Systems using electrophoresis
- G01N27/44756—Apparatus specially adapted therefor
- G01N27/44795—Isoelectric focusing
-
- 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
- B01L3/502746—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 characterised by the means for controlling flow resistance, e.g. flow controllers, baffles
-
- 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
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
- B01L2400/0415—Moving fluids with specific forces or mechanical means specific forces electrical forces, e.g. electrokinetic
- B01L2400/0421—Moving fluids with specific forces or mechanical means specific forces electrical forces, e.g. electrokinetic electrophoretic flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/08—Regulating or influencing the flow resistance
- B01L2400/084—Passive control of flow resistance
- B01L2400/086—Passive control of flow resistance using baffles or other fixed flow obstructions
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Hematology (AREA)
- Clinical Laboratory Science (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Description
上記特許文献1では、キャリヤー液体中に分散状態あるいは浮遊状態で存在する試料がキャリヤー液体と共に流れるメイン流路の周囲を、交流電圧を印可した複数の電極のエッジが取り囲む構造の流路を用いることで、少量の試料を用いて精度良く分析や分取を可能にしている。
上記特許文献2では、基板41上に形成された流路1が分岐点において流路2と流路3とに分岐する構成とする。そして、流路1と流路2、及び流路3の分岐点に、柱状構造の妨害体8を一定の間隔を設けて配列することにしている。
本発明にかかる電気泳動チップは、
等電点電気泳動により試料を分離する流路を備える電気泳動チップであって、
前記流路全体に渡って敷き詰められて配置された複数の柱状構造を有し、
各柱状構造は、全て同じ形状で構成し、ドリフト現象を抑制するために、前記流路の長手方向に沿って一直線で向かう試料溶液の流れを妨害するように前記流路内に配置されており、所定の流路内の領域に渡って敷き詰められて配置された前記柱状構造の配列が前記所定の流路全体に渡って規則的に配置されており、
前記所定の流路内の前記柱状構造の配列は、
前記流路の長手方向と直交する流路幅方向の前記柱状構造の幅が、前記流路の長手方向に配置される柱状構造間の溝の長さよりも広くなるように前記柱状構造を配置して構成しており、前記所定の流路内の前記柱状構造の配列が前記流路全体に渡って敷き詰められていることを特徴とする。
まず、図1、図2を参照しながら、本実施形態の電気泳動チップの概要について説明する。
このように、本実施形態によれば、流路233内に配置された複数の柱状構造は、図4に示すように、流路233の長手方向に沿って一直線で向かう試料溶液の流れを妨害するように配置されている。これにより、等電点電気泳動のスピードと比較して、再現性を乱すドリフト現象のスピードを遅くすることが可能となる。その結果、ドリフト現象を抑制することが可能となる。
233 流路
239、240 液留め
235 蓋
Claims (3)
- 等電点電気泳動により試料を分離する流路を備える電気泳動チップであって、
前記流路全体に渡って敷き詰められて配置された複数の柱状構造を有し、
各柱状構造は、全て同じ形状で構成し、ドリフト現象を抑制するために、前記流路の長手方向に沿って一直線で向かう試料溶液の流れを妨害するように前記流路内に配置されており、所定の流路内の領域に渡って敷き詰められて配置された前記柱状構造の配列が前記所定の流路全体に渡って規則的に配置されており、
前記所定の流路内の前記柱状構造の配列は、
前記流路の長手方向と直交する流路幅方向の前記柱状構造の幅が、前記流路の長手方向に配置される柱状構造間の溝の長さよりも広くなるように前記柱状構造を配置して構成しており、前記所定の流路内の前記柱状構造の配列が前記流路全体に渡って敷き詰められていることを特徴とする電気泳動チップ。 - 前記各柱状構造は、
前記流路の長手方向と直交する流路幅方向の前記柱状構造の幅が、前記流路の長手方向の前記柱状構造の幅よりも長い形状で構成することを特徴とする請求項1記載の電気泳動チップ。 - 前記所定の流路内の前記柱状構造の配列は、
前記流路の長手方向に前記柱状構造を5または6つ規則的に配置し、前記所定の流路内において前記流路の長手方向に沿って一直線で前記試料溶液を流すための溝を形成し、
前記所定の流路内の前記柱状構造の配列が、前記流路全体に渡って敷き詰められており、
各前記所定の流路内の前記柱構造の配列は、他の前記所定の流路内を一直線で流れてきた前記試料溶液の流れを妨害するように、前記他の前記所定の流路内の前記柱状構造の配列で形成される前記溝とT字路状あるいはY字路状の溝が形成されるように前記柱状構造を配置していることを特徴とする請求項2記載の電気泳動チップ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008201026A JP4798183B2 (ja) | 2008-08-04 | 2008-08-04 | 電気泳動チップ |
US12/534,671 US20100025248A1 (en) | 2008-08-04 | 2009-08-03 | Electrophoersis chip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2008201026A JP4798183B2 (ja) | 2008-08-04 | 2008-08-04 | 電気泳動チップ |
Publications (2)
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JP2010038694A JP2010038694A (ja) | 2010-02-18 |
JP4798183B2 true JP4798183B2 (ja) | 2011-10-19 |
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JP (1) | JP4798183B2 (ja) |
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WO2014137681A1 (en) * | 2013-03-05 | 2014-09-12 | Borgwarner Inc. | Push-to-release mechanism for clip ratchet-style tensioner |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE69800630T2 (de) * | 1998-07-29 | 2001-08-23 | Agilent Technologies, Inc. | Chip zur elektroforetischen Trennung von Molekülen und Verfahren zur Verwendung desselben |
ATE463292T1 (de) * | 2002-10-23 | 2010-04-15 | Univ Princeton | Verfahren zur kontinuierlichen teilchentrennung unter verwendungvon zu feldern asymmetrisch ausgerichteten hindernisarrays |
US20060070951A1 (en) * | 2002-11-29 | 2006-04-06 | Masakazu Baba | Microchip, solvent displacement method using the microchip, concentrating method, and mass spectrometry system |
JP3984557B2 (ja) * | 2003-04-25 | 2007-10-03 | アオイ電子株式会社 | 電気泳動デバイス |
JP4661125B2 (ja) * | 2004-08-04 | 2011-03-30 | 日立電線株式会社 | 成分分離素子およびその製造方法 |
US20090045058A1 (en) * | 2005-12-14 | 2009-02-19 | Nec Corporation | Microchip and analysis method using the microchip |
JP2007278906A (ja) * | 2006-04-07 | 2007-10-25 | National Institute For Materials Science | ナノギャップアレイ及びそれを用いた生体高分子の診断方法 |
US20100108512A1 (en) * | 2006-12-26 | 2010-05-06 | Wataru Hattori | Electrophoretic chip and method of using the same |
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2008
- 2008-08-04 JP JP2008201026A patent/JP4798183B2/ja not_active Expired - Fee Related
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2009
- 2009-08-03 US US12/534,671 patent/US20100025248A1/en not_active Abandoned
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JP2010038694A (ja) | 2010-02-18 |
US20100025248A1 (en) | 2010-02-04 |
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