JP2013504753A - 磁性ビーズ又は磁化可能なビーズを運搬する装置及び方法 - Google Patents
磁性ビーズ又は磁化可能なビーズを運搬する装置及び方法 Download PDFInfo
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Abstract
Description
−流体中に磁性ビーズ又は磁化可能なビーズを含むチャンバと、
−前記ビーズがその上で運搬される前記運搬表面を前記チャンバ内に含む運搬素子と、
−前記運搬素子の前記運搬表面と反対側に配置される少なくとも2つの組のミアンダ状の電流ワイヤを含む電流ワイヤ構造であって、前記少なくとも2つの組が少なくとも2方向において互いにずらされている、電流ワイヤ構造と、
−前記運搬表面上で前記ビーズの運搬を引き起こすように、電流駆動スキームに従って電流ワイヤの前記組に個別に印加される電流を個別に切り替える切り替えユニットと、
を有する装置が提示される。
Claims (15)
- 運搬表面上で磁性ビーズ又は磁化可能なビーズを運搬する装置であって、
流体中に磁性ビーズ又は磁化可能なビーズを含むチャンバと、
前記ビーズがその上で運搬される前記運搬表面を、前記チャンバ内に含む運搬素子と、
前記運搬素子の前記運搬表面と反対の側に配されるミアンダ状の電流ワイヤの少なくとも2つの組を含む電流ワイヤ構造であって、前記少なくとも2つの組は、少なくとも2方向において互いにずらされている、電流ワイヤ構造と、
前記運搬表面上での前記ビーズの運搬を引き起こすように、電流駆動スキームに従って前記電流ワイヤの前記組に個別に印加される電流を個別に切り替える切り替えユニットと、
を有する装置。 - 前記ミアンダ状の電流ワイヤの前記組は、前記運搬表面と平行なワイヤ面内に実質的に配され、特に前記運搬表面と反対側の前記運搬素子の表面上に実質的に配される、請求項1に記載の装置。
- 前記ミアンダ状の電流ワイヤの前記組は、前記ワイヤ面内の直交する2方向においてずらされる、請求項2に記載の装置。
- 前記電流ワイヤ構造は、前記運搬素子の前記運搬表面と反対の側に配されるミアンダ状の電流ワイヤの少なくとも3つの組を含み、前記少なくとも3つの組は、少なくとも2方向において互いにずらされている、請求項1に記載の装置。
- 前記運搬表面とほぼ平行な方向にほぼ一様な静磁界を生成する静磁界生成手段を更に有し、前記電流ワイヤ構造は、ミアンダ状の電流ワイヤの2つの組を含む、請求項1に記載の装置。
- 前記切り替えユニットは、前記電流ワイヤの前記組が非ゼロの電流をもつフェーズ及びゼロ電流をもつフェーズを含む周期的な電流信号を個別に供給されるように、前記電流ワイヤの前記組に個別に印加される前記電流を切り替え、前記個別の組に対する電流信号は、非負の電流が一度に1つの電流信号にのみ存在するように、時間的にずらされる、請求項1に記載の装置。
- 前記個別の組に供給される電流信号は、同一であるが、時間的にずらされ、前記時間的なずれは、前記時間的なずれが最も遠くにずらされた前記組に供給される電流信号に関して最も大きくなるように、前記電流ワイヤの前記組の前記運搬方向におけるずれと相関する、請求項6に記載の装置。
- 前記切り替えユニットは、前記ビーズの前記運搬方向を選択するように前記電流信号の極性を選択する、請求項5又は6に記載の装置。
- 前記切り替えユニットは、前記ビーズの運搬方向を変更するために、少なくとも1つの電流信号の極性を切り替える、請求項5又は6に記載の装置。
- 前記電流ワイヤ構造は、
前記運搬素子の前記運搬表面と反対の側に配されるミアンダ状の電流ワイヤの少なくとも2つの第1の組の第1のグループであって、前記少なくとも2つの第1の組は、少なくとも2方向において互いにずらされている、電流ワイヤの第1のグループと、
前記運搬素子の同じ側に配されるミアンダ状の電流ワイヤの少なくとも2つの第2の組の第2のグループであって、前記少なくとも2つの組は、少なくとも2方向において互いにずらされている、電流ワイヤの第2のグループと、
を有し、前記電流ワイヤの前記第1のグループ及び前記第2のグループは、特に前記運搬表面に対し垂直な回転軸を中心に互いに90°回転されて配される、請求項1に記載の装置。 - 前記切り替えユニットは、前記電流ワイヤの前記組に個別に印加される前記電流を切り替え、それにより、前記組は、正の電流をもつフェーズ及び負の電流をもつフェーズを含む周期的な電流信号を個別に供給され、前記個別の組に対する電流信号は、それぞれ異なる電流信号の、特に隣り合う電流ワイヤに供給される電流信号の正及び/又は負のフェーズが互いに重なり合うように、時間的にずらされる、請求項1に記載の装置。
- 前記運搬表面とほぼ平行な方向にほぼ一様な磁界を生成するコイルの組と、
前記運搬表面と平行な面内で前記磁界の方向を変えるように前記コイルの組を制御するコイル制御手段であって、特に2つの逆の方向の間で前記磁界の方向を反転させるコイル制御手段と、
を有する、請求項1に記載の装置。 - 運搬表面上で磁性ビーズ又は磁化可能なビーズを運搬する方法であって、
流体中に磁性ビーズ又は磁化可能なビーズを提供するステップと、
前記運搬素子の前記運搬表面と反対の側に配されるミアンダ状の電流ワイヤの少なくとも2つの組を含む電流ワイヤ構造に電流を印加するステップであって、前記電流ワイヤの前記少なくとも2つの組は、少なくとも2方向において互いにずらされており、前記運搬素子は、前記ビーズがその上を運搬される前記運搬表面を前記チャンバ内に有する、ステップと、
前記運搬表面上での前記ビーズの運搬を引き起こすように、電流駆動スキームに従って前記電流ワイヤの前記組に個別に印加される電流を個別に切り替えるステップと、
を含む方法。 - 特にシークエンシング又は核酸テスティングのために磁性ビーズ又は磁化可能なビーズを含むサンプルを操作する、特にDNAシークエンシング装置又は免疫測定装置であるマイクロフルイディック装置であって、請求項1に記載の装置を有するマイクロフルイディック装置。
- 請求項1に記載の装置に駆動電流を供給する駆動ユニットであって、
前記駆動ユニットは、前記運搬表面上での前記ビーズの運搬を引き起こすように、電流駆動スキームに従って前記電流ワイヤの前記組に個別に印加される電流を個別に切り替え、前記駆動ユニットは、前記電流ワイヤの前記組が非ゼロの電流をもつフェーズ及びゼロ電流をもつフェーズを含む周期的な電流信号を個別に供給されるように、前記電流を切り替える、駆動ユニット。
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EP1601438B1 (en) | 2003-03-08 | 2009-10-07 | Ecole Polytechnique Federale de Lausanne EPFL-SRI | Magnetic bead manipulation and transport device |
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2010
- 2010-09-06 KR KR1020127009121A patent/KR20120050523A/ko not_active Application Discontinuation
- 2010-09-06 EP EP10760045A patent/EP2475459A1/en not_active Withdrawn
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- 2010-09-06 CN CN201080040262.0A patent/CN102481575B/zh not_active Expired - Fee Related
- 2010-09-06 RU RU2012114142/05A patent/RU2543192C2/ru not_active IP Right Cessation
- 2010-09-06 JP JP2012528482A patent/JP5711239B2/ja not_active Expired - Fee Related
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JP2003526523A (ja) * | 2000-03-16 | 2003-09-09 | エスアールアイ インターナショナル | 微小実験デバイスおよび方法 |
US20040262210A1 (en) * | 2001-11-05 | 2004-12-30 | Westervelt Robert M. | System and method for capturing and positioning particles |
WO2008084245A2 (en) * | 2007-01-12 | 2008-07-17 | Brunel University | Microfluidic device |
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US8932540B2 (en) | 2015-01-13 |
EP2475459A1 (en) | 2012-07-18 |
US20120171085A1 (en) | 2012-07-05 |
BR112012005142A2 (pt) | 2019-09-24 |
KR20120050523A (ko) | 2012-05-18 |
JP5711239B2 (ja) | 2015-04-30 |
RU2012114142A (ru) | 2013-10-20 |
CN102481575A (zh) | 2012-05-30 |
WO2011030272A1 (en) | 2011-03-17 |
RU2543192C2 (ru) | 2015-02-27 |
CN102481575B (zh) | 2015-07-01 |
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