JP5210417B2 - ナノストラクチャまたはマイクロストラクチャ表面の液体の移動を制御するための方法および装置 - Google Patents
ナノストラクチャまたはマイクロストラクチャ表面の液体の移動を制御するための方法および装置 Download PDFInfo
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Description
式(1) cosθ=(γS−V−γS−L)/γL−V
式(1)は、小液滴がマイクロレンズとして使用されるか否かに関わらず、小滴が表面に置かれている場合に適用される。
上式で、cosθ(V=0)は、小滴202と電極204の間に電圧が印加されていないときの絶縁層203と小滴202の間の接触角、γL−Vは先に説明した小滴の界面張力、εrは絶縁層203の比誘電率、ε0は、真空の誘電率8.85×10−12F/Mである。
「Nanostructured Surfaces for Dramatic Reduction of Flow Resistance in Droplet−based Microfluidics」、J.KimおよびC.J.Kim、IEEE Conf.MEMS、米ネバダ州ラスべガス、2002年1月、479〜482ページ
Claims (6)
- フィーチャーのパターンを有する表面を備える装置であって、前記フィーチャーのパターンが、
前記表面にわたって液滴を支持することができ、前記表面に沿って前記液滴を所定の方向に制御移動させるために適合されたパターン内特性を有するナノポスト又はマイクロポストのパターンを含み、
前記ナノポスト又はマイクロポストのパターンが、前記所定の方向における前記液滴の先縁の接触角を前記液滴の後縁の接触角度より小さくするように構成され、
前記ナノポスト又はマイクロポストの空間密度が、前記所定の方向に沿って増大し、又は、前記ナノポスト又はマイクロポストが、非対称の形状を有し、前記所定の方向に沿って平滑パターンを形成する
ことを特徴とする装置。 - 前記ナノポスト又はマイクロポストの空間密度が、前記所定の方向の沿って増大することを特徴とする請求項1に記載の装置。
- 隣接する前記ナノポスト又はマイクロポストが、前記所定の方向に沿って単調に減少する間隔で分割されることを特徴とする請求項2に記載の装置。
- 前記ナノポスト又はマイクロポストが、非対称の形状を有し、前記所定の方向の沿って平滑パターンを形成することを特徴とする請求項1に記載の装置。
- 隣接する前記ナノポスト又はマイクロポストの垂直面が、一定の間隔で分離されることを特徴とする請求項4に記載の装置。
- 前記ナノポスト又はマイクロポストの空間密度が、前記表面の1つの領域においてより高いことを特徴とする請求項1に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/403,159 US20040191127A1 (en) | 2003-03-31 | 2003-03-31 | Method and apparatus for controlling the movement of a liquid on a nanostructured or microstructured surface |
US10/403159 | 2003-03-31 |
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- 2004-02-24 EP EP04015738A patent/EP1468730A3/en not_active Withdrawn
- 2004-02-24 EP EP04015735A patent/EP1468727A3/en not_active Withdrawn
- 2004-02-24 EP EP04015737A patent/EP1468729A3/en not_active Withdrawn
- 2004-02-24 EP EP04250982A patent/EP1473079A1/en not_active Withdrawn
- 2004-02-24 EP EP04015736A patent/EP1468728A3/en not_active Withdrawn
- 2004-03-26 KR KR1020040020742A patent/KR20040086572A/ko not_active Application Discontinuation
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KR20040086572A (ko) | 2004-10-11 |
CN1534312B (zh) | 2011-03-16 |
US20090274580A1 (en) | 2009-11-05 |
EP1468729A3 (en) | 2004-10-27 |
CN1534312A (zh) | 2004-10-06 |
EP1468729A2 (en) | 2004-10-20 |
JP5361108B2 (ja) | 2013-12-04 |
EP1468728A3 (en) | 2004-10-27 |
EP1473079A1 (en) | 2004-11-03 |
US20040191127A1 (en) | 2004-09-30 |
EP1468727A3 (en) | 2004-10-27 |
EP1468730A3 (en) | 2004-10-27 |
EP1468728A2 (en) | 2004-10-20 |
JP2013079964A (ja) | 2013-05-02 |
JP2012013688A (ja) | 2012-01-19 |
JP2004299051A (ja) | 2004-10-28 |
EP1468730A2 (en) | 2004-10-20 |
EP1468727A2 (en) | 2004-10-20 |
US9433907B2 (en) | 2016-09-06 |
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