JP7854331B2 - エマルジョンの独立した反応体積を移動させるためのマイクロ流体チップ、キット、およびシステム - Google Patents
エマルジョンの独立した反応体積を移動させるためのマイクロ流体チップ、キット、およびシステムInfo
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Description
Malic、Lidijaらによる「Epigenetic subtyping of white blood cells using a thermoplastic elastomer-based microfluidic emulsification device for multiplexed,methylation-specific digital droplet PCR.」Analyst 144.22(2019):6541~6553。
Schuler、Friedrichらによる「Digital droplet PCR on disk.」Lab on a Chip 16.1(2016):208~216。
Schuler、Friedrichらによる「Digital droplet LAMP as a microfluidic app on standard laboratory devices.」Analytical Methods 8.13(2016):2750~2755。
Li、Binらによる「Miniaturized Continuous-Flow Digital PCR for Clinical-Level Serum Sample Based on the 3D Microfluidics and CMOS Imaging Device.」Sensors 20.9(2020):2492。
Hu、Feiらによる「Smartphone-based droplet digital LAMP device with rapid nucleic acid isolation for highly sensitive point-of-care detection.」Analytical Chemistry 92.2(2019):2258~2265。
Madic、J.、A.Zocevic、V.Senlis、E.Fradet、B.Andre、S.Muller、R.Dangla、およびM.E.Droniouによる「Three-color crystal digital PCR.」Biomolecular detection and quantification 10(2016):34~46。
Clime、Liviuらによる「Bouyancy-driven step emulsification on pneumatic centrifugal microfluidic platforms.」Lab on a Chip 20(2020):3091~3095。
Schuler、Friedrichらによる「Centrifugal step emulsification applied for absolute quantification of nucleic acids by digital droplet RPA.」Lab on a Chip 15(2015):2759~5766。
Claims (12)
- 軸線を中心として回転させるために遠心分離機に取り付けるための遠心型マイクロ流体チップであって、チャンバおよび相互接続チャネルのネットワークを備え、前記ネットワークが、
10~800μLの容積(vtc)、ならびに平均長さ(ltc)、平均幅(wtc)、および平均深さ(dtc)を有し、dtc<ltc、およびdtc<wtcである、処理チャンバ(tc)と、
前記tcにサンプルを送出するように適合された第1の経路であって、前記第1の経路が、2~120μmの水力半径rnを有するノズルを備え、前記ノズルが好適な媒体で満たされている場合、前記サンプルをエマルジョン分割された独立した反応体積(IRV)として離散化して前記tcに送出するように適合された、第1の経路と、
前記IRVが前記tcから選択的に移動され得る開口によって前記tcに結合された提示チャンバ(pc)と、
少なくとも前記pcの長さおよび幅にわたって前記チップを通じて設けられた、前記pcを検査するために透明である窓と、
前記pcに第2の経路によって結合された、引込みチャンバ(rc)と、
を含み、
dtcが、5×rn~2mmであり、前記pcが、1.2×rn~7×rnの厚さdpcを有し、dtc>2dpcであり、前記開口を通る流路が、前記IRVが無傷で前記pcを通過できるように8×rnよりも大きい最小水力半径を有する、遠心型マイクロ流体チップ。 - 前記pcが、0.6~1.2vtcの容積(vpc)と、前記チップの占有面積の80%以下で少なくとも3cm2の占有面積と、を有する、請求項1に記載の遠心型マイクロ流体チップ。
- チャンバおよびチャネルの前記ネットワークが、20μm~5mmの公称厚さを有する第1のフィルムの少なくとも第1の面にレリーフ形成されており、前記チップが、前記チップのポート以外の部分で前記チャンバおよび前記チャネルを密閉するように前記第1の面を覆うカバーフィルムを備える、請求項1に記載の遠心型マイクロ流体チップ。
- dpcが、周囲圧力との差圧にかかわらず、支持用微細構造の配列によって実質的に維持される、請求項1に記載の遠心型マイクロ流体チップ。
- 前記ノズルが、前記tcへの前記第1の経路の入口に配置された、
前記tcへの前記第1の経路の入口が分岐して、1つ以上の追加のノズルをさらに提供する、
前記tcと前記pcとの間の前記開口が、長さよりも幅が広い、
前記開口の床が、dtcからdpcまで変化する深さを有する傾斜部を備える、
前記開口の床が、30°~75°のスロープを有する傾斜部を備える、
前記第1の経路または第2の経路が、体積制御された送出のために、オーバーフローチャンバを有する計量チャンバを備える、
のうちの少なくともいずれか1つに該当する、請求項4に記載の遠心型マイクロ流体チップ。 - 2つ以上のフィルムのスタックを備え、前記フィルムのうちの少なくとも1つが、前記ネットワークを形成するレリーフ構造を有し、各フィルムが、20μm~3mmの公称厚さを有するか、各フィルムが、シロキサン以外の硬化したもしくは凝固した高分子化合物から構成されているか、前記チップの厚さが、0.1~12mmであるか、前記チップの平面延長が、3~25cmであるか、または前記チップが、少なくとも2つのポートを有する、請求項1に記載の遠心型マイクロ流体チップ。
- 前記第1の経路内の第1のチャンバ内の、乾燥形態もしくは液体形態の、PCR混合物などのサンプル準備反応混合物、前記第1の経路内の第2のチャンバ内の、乾燥形態もしくは液体形態のサンプル、前記第1の経路内の前記サンプルもしくは前記反応混合物を溶解もしくは懸濁するための緩衝液、溶媒、もしくは液体、または前記tc、前記pc、もしくは前記rc内に充填され、IRVを支持するように適合された分散媒、のうちの1つ以上が充填された、請求項1~6のいずれか一項に記載の遠心型マイクロ流体チップ。
- 前記tcの軸線方向近位端で前記tcと合流する第3の経路によって前記tcに結合された、低密度媒体チャンバをさらに備え、前記低密度媒体チャンバには、前記サンプルの密度、前記緩衝液、前記溶媒または前記液体の密度、前記分散媒の密度よりも低い密度を有する液体が充填された、請求項7に記載の遠心型マイクロ流体チップ。
- チップコントローラと共にキットで提供され、前記チップと前記コントローラとの両方を回転させるために前記遠心分離機に取り付けられているか、または前記遠心分離機に取り付けるためのものであって、前記チップコントローラが、前記pc内の流体を前記rc内に選択的に移動させるためのオフチップ流量制御デバイスと、前記チップのポートに結合するための加圧流体供給ラインと、を備える、請求項1に記載の遠心型マイクロ流体チップ。
- 前記チップコントローラが、前記チップを前記チップコントローラの片側で支持するように寸法決めされたチップ保持面を備え、
前記チップ保持面が、前記チップの前記処理チャンバをエネルギー場に選択的にさらすための、熱エネルギー源もしくはシンク、超音波トランスデューサ、または電磁界発生器のようなエネルギーデバイスを備える、または
前記チップ保持面が、照明および撮像システムが前記窓を通して前記pcを撮像できるように前記チップを保持する、請求項9に記載のキット。 - 組み立てられて遠心型マイクロ流体システムを形成する、請求項10に記載のキット。
- エマルジョン分割された反応体積(IRV)を同時処理して、前記処理されたIRVを単層で提示する方法であって、前記方法が、
遠心型マイクロ流体チップの処理チャンバ(tc)内に、水力半径r n を有するノズルによって生成された前記IRVを提供するステップと、
前記チップが遠心分離されている間に、前記チップと共に遠心分離機に取り付けられたエネルギーデバイスを作動させることによって、前記tc内の前記IRVにエネルギー処理を施すステップであって、前記tcが、3~100個のIRVを収容する最小寸法を有する、ステップと、
流量制御デバイスを動作させて、8×r n よりも大きい最小水力半径および提示チャンバ(pc)の深さよりも大きい幅を有する開口を介して、前記IRVを無傷のままで前記tcから前記pcに移動させて、前記IRVを実質的な単層に配置する、ステップであって、前記流量制御デバイスが、15kPa未満の圧力差を印加する、ステップと、
を含む方法。
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| JP2000514928A (ja) | 1997-05-23 | 2000-11-07 | ガメラ バイオサイエンス コーポレイション | ミクロ流体工学システムでの流動運動を駆動するために向心的加速を使用するための装置および方法 |
| JP2013524171A (ja) | 2010-03-25 | 2013-06-17 | クァンタライフ・インコーポレーテッド | 液滴ベースのアッセイのための液滴の発生 |
| JP2015532424A (ja) | 2012-10-08 | 2015-11-09 | エコール ポリテクニック | 生物学的材料を含有する溶液を処理および分析するためのマイクロ流体工程ならびにこれに対応するマイクロ流体回路 |
| WO2020102702A1 (en) | 2018-11-16 | 2020-05-22 | Precigenome, LLC | Integrated microfluidic system for droplet generation, nucleic acid amplification, and detection |
| WO2020109388A1 (en) | 2018-11-27 | 2020-06-04 | Stilla Technologies | Wells for optimized sample loading in microfluidic chips |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000514928A (ja) | 1997-05-23 | 2000-11-07 | ガメラ バイオサイエンス コーポレイション | ミクロ流体工学システムでの流動運動を駆動するために向心的加速を使用するための装置および方法 |
| JP2013524171A (ja) | 2010-03-25 | 2013-06-17 | クァンタライフ・インコーポレーテッド | 液滴ベースのアッセイのための液滴の発生 |
| JP2015532424A (ja) | 2012-10-08 | 2015-11-09 | エコール ポリテクニック | 生物学的材料を含有する溶液を処理および分析するためのマイクロ流体工程ならびにこれに対応するマイクロ流体回路 |
| WO2020102702A1 (en) | 2018-11-16 | 2020-05-22 | Precigenome, LLC | Integrated microfluidic system for droplet generation, nucleic acid amplification, and detection |
| WO2020109388A1 (en) | 2018-11-27 | 2020-06-04 | Stilla Technologies | Wells for optimized sample loading in microfluidic chips |
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