JP4539707B2 - 微小粒子分取装置及び微小粒子分取用基板、並びに微小粒子分取方法 - Google Patents
微小粒子分取装置及び微小粒子分取用基板、並びに微小粒子分取方法 Download PDFInfo
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- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
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- 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
- B01L3/502761—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 specially adapted for handling suspended solids or molecules independently from the bulk fluid flow, e.g. for trapping or sorting beads, for physically stretching molecules
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- B01L2200/06—Fluid handling related problems
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Description
この微小粒子分取装置において、前記流路は、基板上に配設されていてもよい。
前記光照射手段は、前記分岐流路内の分散溶媒中に気泡を発生させ得るよう構成され、発生させた気泡による前記分岐流路の流れ抵抗の増大に基づいて、前記流路分岐部における前記分散溶媒の送流方向の制御を行うものである。
また、前記光照射手段を、前記導入流路に連通するチャンバ内の分散溶媒中に気泡を発生させ得るよう構成し、発生させた気泡により前記チャンバ内から排出される前記分散溶媒の排出圧に基づいて、前記流路分岐部における前記分散溶媒の送流方向の制御を行うようにすることもできる。なお、この場合、前記チャンバが前記導入流路に連通する連通口の口径は、前記微小粒子の直径よりも小さくなるように構成される。
さらに、前記光照射手段は、前記分岐流路又は前記チャンバに対してレーザー光を走査するための光走査部又は/及びレーザー光の強度を制御する光変調部を備えていてもよい。
この光走査部は、前記流路が複数設けられている場合においては、全ての流路の前記分岐流路又は前記チャンバに対してレーザー光を走査可能に構成される。
さらに、微小粒子の分散溶媒を導入可能な導入流路と、該導入流路に連通する複数の分岐流路と、を含む流路の流路分岐部において、前記分散溶媒の送流方向を制御して所望の微小粒子を選択された一の分岐流路内へ分取する微小粒子分取方法であって、熱源としてのレーザー光の照射により前記分散溶媒中に気泡を発生させ、発生させた気泡によって前記流路分岐部における前記分散溶媒の送流方向の制御を行う微小粒子分取方法をも提供する。
a 基板
a1 上層部
a2 下層部
a3 蓄熱層
A 流路
A1 導入流路
A2,A3,A4 分岐流路
Ap2,Ap3,Ap4 サンプル貯留部
Ac3,Ac4 チャンバ
B 気泡
L1 測定レーザー光
L2 気泡発生レーザー光
P 微小粒子
R 検出対象光
・ レーザー光源
3 走査部
4 対物レンズ
5 光検出部
6 解析手段
7 光変調部
8 分光器
9,10 コリメータレンズ
Claims (10)
- 微小粒子の分散溶媒を導入可能な導入流路と、該導入流路に連通する複数の分岐流路と、を含む流路の流路分岐部において、前記分散溶媒の送流方向を制御して所望の微小粒子を選択された一の分岐流路内へ分取する微小粒子分取装置であって、
熱源としてのレーザー光の照射により前記分散溶媒中に気泡を発生させ得る光照射手段を備え、
前記気泡によって前記流路分岐部における前記分散溶媒の送流方向の制御を行う微小粒子分取装置。 - 前記光照射手段は、前記分岐流路内の分散溶媒中に気泡を発生させ得るよう構成され、
発生させた気泡による前記分岐流路の流れ抵抗の増大に基づいて、前記流路分岐部における前記分散溶媒の送流方向の制御を行うことを特徴とする請求項1記載の微小粒子分取装置。 - 前記光照射手段は、前記導入流路に連通するチャンバ内の分散溶媒中に気泡を発生させ得るよう構成され、
発生させた気泡により前記チャンバ内から排出される前記分散溶媒の排出圧に基づいて、前記流路分岐部における前記分散溶媒の送流方向の制御を行うことを特徴とする請求項1記載の微小粒子分取装置。 - 前記光照射手段は、照射されるレーザー光の強度を時系列に従って漸減させる光変調部を備えることを特徴とする請求項2又は3記載の微小粒子分取装置。
- 前記流路が複数設けられており、
前記光照射手段は、前記分岐流路又は前記チャンバに対してレーザー光を走査するための光走査部を備え、
光走査部は、複数の流路の前記分岐流路又は前記チャンバに対してレーザー光を走査可能に構成されていることを特徴とする請求項4記載の微小粒子分取装置。 - 前記流路は、照射されるレーザー光のエネルギーを熱に変換する蓄熱層を含んでなる基板上に配設されていることを特徴とする請求項1記載の微小粒子分取装置。
- 前記チャンバが前記導入流路に連通する連通口の口径は、前記微小粒子の直径よりも小さいことを特徴とする請求項3記載の微小粒子分取装置。
- 微小粒子の分散溶媒を導入可能な導入流路と、該導入流路に連通する複数の分岐流路と、を含む流路の流路分岐部において、前記分散溶媒の送流方向を制御して所望の微小粒子を選択された一の分岐流路内へ分取する微小粒子分取用基板であって、
熱源としてのレーザー光の照射により前記分散溶媒中に発生させた気泡によって、前記流路分岐部における前記分散溶媒の送流方向を制御し得る微小粒子分取用基板。 - 照射されるレーザー光のエネルギーを熱に変換する蓄熱層を含んでなる請求項8記載の微小粒子分取用基板。
- 微小粒子の分散溶媒を導入可能な導入流路と、該導入流路に連通する複数の分岐流路と、を含む流路の流路分岐部において、前記分散溶媒の送流方向を制御して、所望の微小粒子を選択された一の分岐流路内へ分取する微小粒子分取方法であって、
熱源としてのレーザー光の照射により前記分散溶媒中に気泡を発生させ、
前記気泡によって前記流路分岐部における前記分散溶媒の送流方向の制御を行う微小粒子分取方法。
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US12/257,355 US8127624B2 (en) | 2007-10-25 | 2008-10-23 | Particulate sampling apparatus, particulate sampling substrate and particulate sampling method |
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US9364831B2 (en) * | 2009-08-08 | 2016-06-14 | The Regents Of The University Of California | Pulsed laser triggered high speed microfluidic switch and applications in fluorescent activated cell sorting |
US9176504B2 (en) * | 2011-02-11 | 2015-11-03 | The Regents Of The University Of California | High-speed on demand droplet generation and single cell encapsulation driven by induced cavitation |
EP2602608B1 (en) * | 2011-12-07 | 2016-09-14 | Imec | Analysis and sorting of biological cells in flow |
WO2014013802A1 (ja) | 2012-07-18 | 2014-01-23 | ソニー株式会社 | 微小粒子分取装置、微小粒子分取用マイクロチップ及び微小粒子分取方法 |
JP6036496B2 (ja) | 2012-07-24 | 2016-11-30 | ソニー株式会社 | 微小粒子分取方法 |
JP5910412B2 (ja) | 2012-08-16 | 2016-04-27 | ソニー株式会社 | 微小粒子分取方法及び微小粒子分取用マイクロチップ |
CN104769414B (zh) | 2012-09-06 | 2018-08-24 | 古河电气工业株式会社 | 检体识别分离提取装置及检体识别分离提取方法 |
US9731293B2 (en) * | 2012-10-03 | 2017-08-15 | The United States Of America, As Represented By The Secretary Of The Navy | Paired laser and electrokinetic separation, manipulation, and analysis device |
AU2014233699B2 (en) | 2013-03-15 | 2018-05-24 | The Regents Of The University Of California | High-speed on demand microfluidic droplet generation and manipulation |
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JP6953679B2 (ja) | 2016-03-30 | 2021-10-27 | ソニーグループ株式会社 | 試料分取キット、試料分取装置 |
US11203017B2 (en) | 2016-07-26 | 2021-12-21 | Hewlett-Packard Development Company, L.P. | Microfluidic apparatuses |
US10228317B1 (en) * | 2016-08-25 | 2019-03-12 | Verily Life Sciences Llc | Multiplexed microfluidic cell sorting using laser induced cavitation bubbles |
JP6871116B2 (ja) | 2017-09-15 | 2021-05-12 | 株式会社東芝 | セルソータ |
JP2020041881A (ja) * | 2018-09-10 | 2020-03-19 | ソニー株式会社 | 制御装置、該制御装置を用いた微小粒子分取装置及び微小粒子分取システム、並びに制御方法、及び制御プログラム |
US20220226814A1 (en) * | 2019-04-25 | 2022-07-21 | University Public Corporation Osaka | Microscopic object collection method and microscopic object collection system |
GB2585584A (en) * | 2020-09-09 | 2021-01-13 | Ttp Plc | Microfluidic particle sorter |
US20240253041A1 (en) * | 2021-11-26 | 2024-08-01 | Tsinghua University | Sorting device and method based on electric spark cavitation bubbles |
CN114292741B (zh) * | 2021-12-13 | 2023-01-24 | 清华大学 | 一种基于电火花空化气泡的分选装置及方法 |
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