JP2001510394A - フェロ流体を用いる移動による粒子または分子の分離法および装置 - Google Patents
フェロ流体を用いる移動による粒子または分子の分離法および装置Info
- Publication number
- JP2001510394A JP2001510394A JP52437798A JP52437798A JP2001510394A JP 2001510394 A JP2001510394 A JP 2001510394A JP 52437798 A JP52437798 A JP 52437798A JP 52437798 A JP52437798 A JP 52437798A JP 2001510394 A JP2001510394 A JP 2001510394A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- separation
- molecules
- magnetic field
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/32—Magnetic separation acting on the medium containing the substance being separated, e.g. magneto-gravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D57/00—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C
- B01D57/02—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C by electrophoresis
-
- 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
- G01N27/44786—Apparatus specially adapted therefor of the magneto-electrophoresis type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Electrostatic Separation (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 粒子または分子を、フェロ流体、すなわち磁性粒子のコロイド状懸濁液 である分離媒質、に導入し、少なくとも1種類の原動力を上記のフェロ流体内の これらの粒子または分子に加える、粒子または分子の分離法であって、磁場をこ のフェロ流体に掛けて、分離される粒子または分子がその移動中に通過するフェ ロ流体の磁性粒子の多いゾーンと少ないゾーンとを少なくとも1回交互にフェロ 流体中に生成させ、これにより分離を生じさせることを特徴とする方法。 2. 分離媒質内に電場を掛けることによって移動力が得られ、電気泳動法を 構成する、請求項1に記載の方法。 3. 分離流体の磁性粒子が本質的に中性である、請求項2に記載の方法。 4. 磁場が、分離される粒子または分子の移動方向に対して本質的に垂直で ある、請求項1〜3のいずれか1項に記載の方法。 5. 磁場が、それが掛けられるゾーンにおいて本質的に一定である、請求項 1〜4のいずれか1項に記載の方法。 6. 磁場が、それが掛けられるゾーンにおいて強度勾配を有する、請求項1 〜4のいずれか1項に記載の方法。 7. 分離ゾーンが、磁場の方向において本質的に一定の厚みを有し、この厚 みが分離流体中の磁性粒子の濃度と、分離される粒子または分子の大きさの関数 としての磁場の大きさにより選択される、請求項1〜6のいずれか1項に記載の 方法。 8. 分離ゾーンが、分離される粒子または分子の優先的移動方向に沿って可 変厚みを有し、このゾーンの平均厚みが分離流体中の磁性粒子の濃度と、分離を 行う粒子または分子の大きさの関数としての磁場の大きさにより選択される、請 求項1〜6のいずれか1項に記載の方法。 9. 磁場に対して本質的に垂直な分離ゾーンの壁が平坦であり、且つ互いに 実質的に傾斜している、請求項8に記載の方法。 10. 分離ゾーンの厚みが1μm〜1mmである、請求項1〜9のいずれか 1項に記載の方法。 11. 分離ゾーンの厚みが10μm〜100μmである、請求項10に記載 の方法。 12. 任意の順序で行われる、様々な下記の段階 分離ゾーンに分離媒質を満たし、 磁場を活性化し、 分離される粒子または分子を含む試料の一定量を分離ゾーンの一方の側に導 入し、 分離される粒子または分子に原動力を働かせる手段を活性化する、 を特徴とする、請求項1〜11のいずれか1項に記載の方法。 13. 磁場の活性化の前に、分離ゾーンへ分離媒質を充填する、請求項12 に記載の方法。 14. 試料の導入の前に、磁場を掛ける、請求項1〜13のいずれか1項に 記載の方法。 15. 分離される粒子または分子に原動力を働かせる手段を活性化する前に 、試料を導入する、請求項1〜13のいずれか1項に記載の方法。 16. 分離ゾーンの出口で、分離生成物の通過を検出し、および/または分 離生成物を収集する、請求項12に記載の方法。 17. 磁性粒子のコロイド流体が、2つの分離操作の間に自動的に交換され る、請求項1〜16のいずれか1項に記載の方法。 18. 分離された分子が核酸、特にDNAである、請求項1〜17のいずれ か1項に記載の方法。 19. 分離された分子が、大きさが50Kb〜数百MbのDNA分子である 、請求項18に記載の方法。 20. 分離された粒子または分子が、細胞、ウイルス、非磁性コロイド懸濁 液およびリポソームのような液体に懸濁した要素である、請求項1〜17のいず れか1項に記載の方法。 21. フェロ流体、すなわち磁性粒子のコロイド懸濁液である分離媒質を収 容するセル、これらの粒子または分子を上記分離媒質に導入する手段、およびこ の流体に磁場を掛けるための手段を含んでなる粒子または分子の分離装置であっ て、上記媒質内で少なくとも1個の移動力を加えるための手段を包含し、磁場を 掛けるために、分離される粒子や分子がその移動中に通過するフェロ流体磁性粒 子の多いゾーンと少ないゾーンを少なくとも1回交互に生じさせることができる 手段があり、これにより分離が行われることを特徴とする装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR96/14661 | 1996-11-29 | ||
FR9614661A FR2756501B1 (fr) | 1996-11-29 | 1996-11-29 | Procede et dispositif de separation de particules ou molecules par migration a travers un ferrofluide |
PCT/FR1997/002149 WO1998023379A1 (fr) | 1996-11-29 | 1997-11-28 | Procede et dispositif de separation de particules ou molecules par migration a travers un ferrofluide |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001510394A true JP2001510394A (ja) | 2001-07-31 |
JP4651754B2 JP4651754B2 (ja) | 2011-03-16 |
Family
ID=9498175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52437798A Expired - Fee Related JP4651754B2 (ja) | 1996-11-29 | 1997-11-28 | フェロ流体を用いる移動による粒子または分子の分離法および装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6610186B1 (ja) |
EP (1) | EP0941142B1 (ja) |
JP (1) | JP4651754B2 (ja) |
DE (1) | DE69723460T2 (ja) |
FR (1) | FR2756501B1 (ja) |
WO (1) | WO1998023379A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008190882A (ja) * | 2007-01-12 | 2008-08-21 | National Institute Of Advanced Industrial & Technology | 除血球機能を統合した電気泳動チップを用いた一酸化窒素最終代謝物の分析法 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10224150B4 (de) * | 2002-05-27 | 2004-04-01 | Siemens Ag | Reaktor zur Behandlung eines Probenmediums |
US7238269B2 (en) * | 2003-07-01 | 2007-07-03 | 3M Innovative Properties Company | Sample processing device with unvented channel |
US7422709B2 (en) * | 2004-05-21 | 2008-09-09 | Crosby Gernon | Electromagnetic rheological (EMR) fluid and method for using the EMR fluid |
US8211386B2 (en) | 2004-06-08 | 2012-07-03 | Biokit, S.A. | Tapered cuvette and method of collecting magnetic particles |
US20070080062A1 (en) * | 2005-10-03 | 2007-04-12 | Harnett Cindy K | Coated metal structures and methods of making and using thereof |
US8974658B2 (en) * | 2006-07-17 | 2015-03-10 | Universal Biosensors Pty Ltd | Electrochemical detection of magnetic particle mobility |
DE102009043537B4 (de) * | 2009-09-30 | 2012-03-22 | Siemens Aktiengesellschaft | Verfahren und Anordnung zur Bestimmung von Zell-Vitalitäten |
US8919451B2 (en) * | 2011-01-21 | 2014-12-30 | Halliburton Energy Services, Inc. | Varying pore size in a well screen |
CA2862364C (en) * | 2011-12-30 | 2021-02-23 | Quest Diagnostics Investments Incorporated | Nucleic acid analysis using emulsion pcr |
FR2995225B1 (fr) | 2012-09-07 | 2014-10-03 | Jean-Louis Viovy | Systeme microfluidique presentant un lit de particules magnetiques |
US20160296945A1 (en) | 2013-03-15 | 2016-10-13 | Ancera, Inc. | Systems and methods for active particle separation |
WO2014145765A1 (en) * | 2013-03-15 | 2014-09-18 | Ancera, Inc. | Systems and methods for bead-based assays in ferrofluids |
US11285490B2 (en) | 2015-06-26 | 2022-03-29 | Ancera, Llc | Background defocusing and clearing in ferrofluid-based capture assays |
CN112808453B (zh) * | 2021-02-07 | 2023-08-15 | 广东奥胜新材料有限公司 | 磁选装置 |
US20230058962A1 (en) * | 2021-08-18 | 2023-02-23 | Alpaqua Engineering, LLC | Plate Cushion Device Having A Compression Gap Lock |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140714A (en) * | 1962-06-28 | 1964-07-14 | Cordis Corp | Blood separation method |
US3477948A (en) * | 1965-12-13 | 1969-11-11 | Inoue K | Magnetic filter and method of operating same |
US3941136A (en) * | 1973-11-21 | 1976-03-02 | Neuronyx Corporation | Method for artificially inducing urination, defecation, or sexual excitation |
US3991743A (en) * | 1974-10-09 | 1976-11-16 | Louis Bucalo | Conception-preventing and variable filtering or flow control devices and methods |
US4526681A (en) * | 1983-10-31 | 1985-07-02 | Purdue Research Foundation | Magnetic separation method utilizing a colloid of magnetic particles |
US4911806A (en) * | 1987-02-27 | 1990-03-27 | Biotronics | Method and apparatus for separating particles in liquid suspension utilizing oscillating electric and magnetic fields |
US5541072A (en) * | 1994-04-18 | 1996-07-30 | Immunivest Corporation | Method for magnetic separation featuring magnetic particles in a multi-phase system |
-
1996
- 1996-11-29 FR FR9614661A patent/FR2756501B1/fr not_active Expired - Fee Related
-
1997
- 1997-11-28 DE DE69723460T patent/DE69723460T2/de not_active Expired - Lifetime
- 1997-11-28 US US09/319,078 patent/US6610186B1/en not_active Expired - Fee Related
- 1997-11-28 WO PCT/FR1997/002149 patent/WO1998023379A1/fr active IP Right Grant
- 1997-11-28 EP EP97948951A patent/EP0941142B1/fr not_active Expired - Lifetime
- 1997-11-28 JP JP52437798A patent/JP4651754B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008190882A (ja) * | 2007-01-12 | 2008-08-21 | National Institute Of Advanced Industrial & Technology | 除血球機能を統合した電気泳動チップを用いた一酸化窒素最終代謝物の分析法 |
Also Published As
Publication number | Publication date |
---|---|
US6610186B1 (en) | 2003-08-26 |
DE69723460T2 (de) | 2004-04-15 |
JP4651754B2 (ja) | 2011-03-16 |
WO1998023379A1 (fr) | 1998-06-04 |
EP0941142A1 (fr) | 1999-09-15 |
DE69723460D1 (de) | 2003-08-14 |
FR2756501B1 (fr) | 1999-02-19 |
EP0941142B1 (fr) | 2003-07-09 |
FR2756501A1 (fr) | 1998-06-05 |
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