JP5791621B2 - 液滴生成技術 - Google Patents
液滴生成技術 Download PDFInfo
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- JP5791621B2 JP5791621B2 JP2012536941A JP2012536941A JP5791621B2 JP 5791621 B2 JP5791621 B2 JP 5791621B2 JP 2012536941 A JP2012536941 A JP 2012536941A JP 2012536941 A JP2012536941 A JP 2012536941A JP 5791621 B2 JP5791621 B2 JP 5791621B2
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Description
シルガード182、シルガード184、およびシルガード186で販売されているものが含まれる。PDMSを含むシリコーンポリマーには、本発明のマイクロ流体構造の形成を単純化するいくつかの有益な特性を有する。例えば、かかる材料は安価であり、容易に利用可能であり、そして熱を用いる硬化を介してプレポリマー液体から固化することができる。例えば、PDMSは、通例、例えば、約65℃〜約75℃の温度に、例えば、約1時間の曝露時間で、プレポリマー液体を曝露することによって硬化可能である。また、PDMSなどのシリコーンポリマーは、エラストマー性でありえ、従って、本発明の特定の実施形態において必要である、比較的高いアスペクト比を有する非常に小さな特徴を形成するために有用であり得る。柔軟な(例えば、エラストマー性)成型またはマスターは、この点において有利であり得る。
ydimethylsiloxane」という標題の論文、Anal.Chem.,70:474−480,1998(ダフィら)において記載されている。
以下の実施例は、1つの非限定的な実施形態による、複数の液滴の生成について記載する。特に、この実施例は、大きいエマルションライブラリを生成する制御され、拡張可能な方法を示す。この方法は、自動化され、ユーザによる介入をほとんど必要としない。また、並列処理され、ライブラリの迅速な作成を許容する。
この実施例は、2つの液滴のグループの集合体を示し、各グループは、組成物によって区別できるが、各グループ自体の液滴は、組成的に区別不能である。
この実施例は、複数の液滴のグループを有する集合体を示し、各グループは、組成物によって区別できるが、各グループ自体の液滴は、組成的に区別不能である。
Claims (22)
- 複数の液滴を生成する方法であって、
第2の流体によって実質的に囲まれている第1の流体を有する複数の液滴を備えるエマルションを供給し、
上記エマルションをマイクロ流体チャネルの交差部を通過させて複数の分割液滴を生成し、
上記交差部は、少なくとも2つの交差チャネルを有し、これらの交差チャネルは、上記交差部で上記マイクロ流体チャネルと交差する第3の流入流体を含んでいることを特徴とする方法。 - 請求項1に記載の方法において、
上記第1の流体と上記第2の流体とは、実質的に混合可能でないことを特徴とする方法。 - 請求項1に記載の方法において、
上記複数の分割液滴は、上記第2の流体によって実質的に囲まれていることを特徴とする方法。 - 請求項1に記載の方法において、
上記少なくとも1つの液滴を供給することは、それぞれが上記第2の流体によって実質的に囲まれた複数の液滴を供給することを含み、
上記少なくとも1つの液滴を通過させることは、上記液滴のそれぞれが分割されて、2以上の分割液滴を生成するように、上記液滴の少なくともいくつかを上記マイクロ流体チャネルの上記交差部を通過させることを含むことを特徴とする方法。 - 請求項1に記載の方法において、
上記少なくとも1つの液滴を供給することは、それぞれが上記第2の流体によって実質的に囲まれた複数の液滴を供給することを含み、
上記少なくとも1つの液滴を通過させることは、上記液滴のそれぞれが分割されて、略同じ数の分割液滴を生成するように、上記液滴の少なくともいくつかを上記マイクロ流体チャネルの上記交差部を通過させることを含むことを特徴とする方法。 - 請求項4に記載の方法において、
上記マイクロ流体チャネルの上記交差部を通過するそれぞれの液滴について、
上記それぞれの液滴から生成された2以上の分割液滴は、上記分割液滴の約5%以内が、生成された全ての上記分割液滴の平均直径の約10%よりも大きい直径を有するような直径の分布を有することを特徴とする方法。 - 請求項5に記載の方法において、
上記複数の分割液滴は、上記液滴の約5%以内が上記液滴の平均直径の約10%よりも大きい直径を有するような直径の分布を有することを特徴とする方法。 - 請求項5に記載の方法において、
上記複数の液滴は、少なくとも4つの区別可能なスピーシーズを含み、上記液滴の約5%以内が上記少なくとも4つの区別可能なスピーシーズのうちの2以上を含むことを特徴とする方法。 - 請求項8に記載の方法において、
上記少なくとも4つの区別可能なスピーシーズは、少なくとも4つの区別可能な核酸を有することを特徴とする方法。 - 請求項8に記載の方法において、
上記少なくとも4つの区別可能なスピーシーズは、少なくとも4つの区別可能な同定要素を有することを特徴とする方法。 - 請求項8に記載の方法において、
上記少なくとも4つの区別可能なスピーシーズは、少なくとも4つの区別可能なタンパク質を有することを特徴とする方法。 - 請求項1に記載の方法において、
上記少なくとも1つの液滴は、約500ミクロンより大きい平均直径を有し、上記複数の分割液滴は、約500ミクロンより小さい平均直径を有することを特徴とする方法。 - 請求項1に記載の方法において、
少なくとも約10の分割液滴は、少なくとも1つの第1の液滴から生成されていることを特徴とする方法。 - 請求項1に記載の方法において、
少なくとも約50の分割液滴は、少なくとも1つの第1の液滴から生成されていることを特徴とする方法。 - 請求項1に記載の方法において、
複数の分割液滴の平均直径は、約1000ミクロンより小さく、上記液滴は、実質的に単分散であることを特徴とする方法。 - 請求項1に記載の方法において、
上記少なくとも1つの液滴を供給することは、少なくとも1つの第1のスピーシーズを有する第1の液滴と、上記第1のスピーシーズから区別可能な少なくとも1つの第2のスピーシーズを有する第2の液滴とを供給することを含むことを特徴とする方法。 - 請求項16に記載の方法において、
上記複数の分割液滴を有するエマルションを生成し、
上記各分割液滴は、上記第1の液滴の一部または上記第2の液滴の一部を有し、
上記エマルション中の上記分割液滴の平均直径は、約1000ミクロンより小さいことを特徴とする方法。 - 複数の液滴を含む流体を備え、上記複数の液滴の少なくともいくつかは、区別可能な組成物を有し、
マイクロ流体チャネルの交差部で上記流体内に含まれる上記複数の液滴を使用して分割液滴を生成できるフローフォーカシングデバイスを備え、
上記交差部は、少なくとも2つの交差チャネルを有し、これらの交差チャネルは、上記交差部で上記マイクロ流体チャネルと交差する流入流体を含むことができ、
上記生成された分割液滴は、上記液滴の約5%以内が上記液滴の平均直径の約10%よりも小さい直径を有するような直径の分布を有することを特徴とする製品。 - 請求項18に記載の製品において、
上記流体は、少なくとも5つの区別可能な液滴を含むことを特徴とする製品。 - 請求項18に記載の製品において、
少なくとも10の分割液滴は、各液滴から生成されることを特徴とする製品。 - 請求項1に記載の方法において、
上記第3の流体と上記第2の流体とは、それぞれ油を含むことを特徴とする方法。 - 複数の液滴を生成する方法であって、
第2の流体によって実質的に囲まれている第1の流体を有する複数の液滴を備えるエマルションを供給し、
上記エマルションをマイクロ流体チャネルに通して複数の分割液滴を生成し、
上記分割液滴のそれぞれは、少なくとも4つの区別可能な同定要素を上記分割液滴中に実質的に含むことを特徴とする方法。
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