JP7064007B2 - 薄膜トランジスタと容量感知とを伴う二重基板を含むデジタルマイクロ流体デバイス - Google Patents
薄膜トランジスタと容量感知とを伴う二重基板を含むデジタルマイクロ流体デバイス Download PDFInfo
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Description
本願は、2017年10月18日に出願された、米国仮特許出願第62/573,846号の優先権を主張する。本明細書において参照される全ての特許および特許出願は、それらの全体が、参照により援用される。
デジタルマイクロ流体デバイスは、限られた環境内で液滴を推進、分割、および継合するために、独立した電極を使用し、それによって、「ラボオンチップ」を提供する。デジタルマイクロ流体デバイスは、代替として、電気泳動流および/またはマイクロポンプに依拠する競合マイクロ流体システムと本方法をさらに区別するように、誘電体上エレクトロウェッティング(すなわち、「EWoD」)と称される。エレクトロウェッティング技術の2012年の論評が、“Digital Microfluidics,” Annu. Rev. Anal. Chem. 2012, 5:413-40においてWheelerによって提供され、その全体が、参照によって本明細書に援用される。本技法は、サンプル調製、検定、および合成化学が、少量のサンプルおよび試薬の両方を用いて実施されることを可能にする。近年では、エレクトロウェッティングを使用するマイクロ流体セル内の制御された液滴操作が、商業的に実現可能になっており、現在、大きな生命科学企業(例えば、Oxford Nanopore)から入手可能な製品が存在する。
本明細書は、例えば、以下の項目も提供する。
(項目1)
デジタルマイクロ流体デバイスであって、
薄膜トランジスタの第1のセットに結合される第1の複数の電極を備える第1の基板であって、前記第1の基板は、前記第1の複数の電極および前記薄膜トランジスタの第1のセットの両方を被覆する第1の誘電体層を含む、第1の基板と、
薄膜トランジスタの第2のセットに結合される第2の複数の電極を備える第2の基板であって、前記第2の基板は、前記第2の複数の電極および前記薄膜トランジスタの第2のセットの両方を被覆する第2の誘電体層を含む、第2の基板と、
前記第1の基板および前記第2の基板を分離し、前記第1の基板と前記第2の基板との間にマイクロ流体領域を作成するスペーサと、
前記薄膜トランジスタの第1のセットに動作可能に結合され、前記第1の複数の電極の少なくとも一部に推進電圧を提供するように構成される第1のコントローラと、
前記薄膜トランジスタの第2のセットに動作可能に結合され、前記第2の複数の電極のうちの少なくとも1つと駆動電極との間の静電容量を判定するように構成される第2のコントローラと
を備える、デジタルマイクロ流体デバイス。
(項目2)
前記第1の誘電体層は、疎水性を有する、項目1に記載のデジタルマイクロ流体デバイス。
(項目3)
前記第2の誘電体層は、疎水性を有する、項目1に記載のデジタルマイクロ流体デバイス。
(項目4)
前記第1の誘電体層を被覆する第1の疎水性層と、前記第2の誘電体層を被覆する第2の疎水性層とをさらに備える、項目1に記載のデジタルマイクロ流体デバイス。
(項目5)
前記第1の複数の薄膜トランジスタまたは前記第2の複数の薄膜トランジスタは、非晶質シリコンを含む、項目1に記載のデジタルマイクロ流体デバイス。
(項目6)
前記第1の複数の電極は、アレイ内に配列される、項目1に記載のデジタルマイクロ流体デバイス。
(項目7)
前記第1の複数の電極のアレイは、1線形センチメートルあたり少なくとも25個の電極を含む、項目6に記載のデジタルマイクロ流体デバイス。
(項目8)
前記第2の複数の電極のうちの各電極は、前記駆動電極と相互嵌合される、項目1に記載のデジタルマイクロ流体デバイス。
(項目9)
前記駆動電極に結合され、前記駆動電極に時変電圧を提供するように構成される信号源をさらに備える、項目8に記載のデジタルマイクロ流体デバイス。
(項目10)
前記第2の複数の電極は、幅が0.01~5mmである、項目8に記載のデジタルマイクロ流体デバイス。
(項目11)
前記第2の基板は、少なくとも1つの光透過性領域を含む、項目1に記載のデジタルマイクロ流体デバイス。
(項目12)
前記光透過性領域は、面積が少なくとも10mm 2 である、項目11に記載のデジタルマイクロ流体デバイス。
(項目13)
前記第2の複数の電極は、第1の密度および第2の密度で配列され、前記第1の密度は、100mm 2 あたり前記第2の密度より少なくとも3倍多くの電極を含む、項目1に記載のデジタルマイクロ流体デバイス。
(項目14)
前記第2の複数の電極の第1の密度は、1線形センチメートルあたり20~200個の電極を含む、項目13に記載のデジタルマイクロ流体デバイス。
(項目15)
前記第2の複数の電極の第2の密度は、1線形センチメートルあたり1~15個の電極を含む、項目13に記載のデジタルマイクロ流体デバイス。
(項目16)
前記第1の密度に対応する前記デバイスの面積は、前記第2の密度に対応する前記デバイスの面積よりも小さい、項目13に記載のデジタルマイクロ流体デバイス。
(項目17)
前記第2の密度に対応する前記デバイスの面積は、前記第1の密度に対応する前記デバイスの面積よりも少なくとも3倍大きい、項目16に記載のデジタルマイクロ流体デバイス。
Claims (16)
- デジタルマイクロ流体デバイスであって、
薄膜トランジスタの第1のセットに結合される第1の複数の電極を備える第1の基板であって、前記第1の基板は、前記第1の複数の電極および前記薄膜トランジスタの第1のセットの両方を被覆する第1の誘電体層を含む、第1の基板と、
薄膜トランジスタの第2のセットおよび駆動電極に結合される第2の複数の電極を備える第2の基板であって、前記第2の基板は、前記第2の複数の電極、前記薄膜トランジスタの第2のセット、および前記駆動電極を被覆する第2の誘電体層を含む、第2の基板と、
前記第1の基板および前記第2の基板を分離し、前記第1の基板と前記第2の基板との間にマイクロ流体領域を作成するスペーサと、
前記薄膜トランジスタの第1のセットに動作可能に結合され、前記第1の複数の電極の少なくとも一部に推進電圧を提供するように構成される第1のコントローラと、
前記薄膜トランジスタの第2のセットに動作可能に結合され、前記第2の複数の電極のうちの少なくとも1つと前記駆動電極との間の静電容量を判定するように構成される第2のコントローラと
を備える、デジタルマイクロ流体デバイス。 - 前記第1の誘電体層は、疎水性を有する、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第2の誘電体層は、疎水性を有する、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第1の誘電体層を被覆する第1の疎水性層と、前記第2の誘電体層を被覆する第2の疎水性層とをさらに備える、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第1の複数の薄膜トランジスタまたは前記第2の複数の薄膜トランジスタは、非晶質シリコンを含む、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第1の複数の電極は、アレイ内に配列される、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第1の複数の電極のアレイは、1線形センチメートルあたり少なくとも25個の電極を含む、請求項6に記載のデジタルマイクロ流体デバイス。
- 前記駆動電極に結合され、前記駆動電極に時変電圧を提供するように構成される信号源をさらに備える、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第2の複数の電極は、幅が0.01~5mmである、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第2の基板は、少なくとも1つの光透過性領域を含む、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記光透過性領域は、面積が少なくとも10mm2である、請求項10に記載のデジタルマイクロ流体デバイス。
- 前記第2の複数の電極は、第1の密度および第2の密度で配列され、前記第1の密度は、100mm2あたり前記第2の密度より少なくとも3倍多くの電極を含む、請求項1に記載のデジタルマイクロ流体デバイス。
- 前記第2の複数の電極の第1の密度は、1線形センチメートルあたり20~200個の電極を含む、請求項12に記載のデジタルマイクロ流体デバイス。
- 前記第2の複数の電極の第2の密度は、1線形センチメートルあたり1~15個の電極を含む、請求項12に記載のデジタルマイクロ流体デバイス。
- 前記第1の密度に対応する前記デバイスの面積は、前記第2の密度に対応する前記デバイスの面積よりも小さい、請求項12に記載のデジタルマイクロ流体デバイス。
- 前記第2の密度に対応する前記デバイスの面積は、前記第1の密度に対応する前記デバイスの面積よりも少なくとも3倍大きい、請求項15に記載のデジタルマイクロ流体デバイス。
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CN111107937B (zh) | 2022-08-02 |
KR102417289B1 (ko) | 2022-07-06 |
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CA3075408A1 (en) | 2019-04-25 |
US20190111433A1 (en) | 2019-04-18 |
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