JP2008501999A - 光学流体顕微鏡装置 - Google Patents
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Abstract
Description
本出願は、仮ではないものであり、2004年7月23日に受理され、「フルオロフォア配列基部の顕微鏡」の名称、2004年6月4日に受理され、「フルオロフォア配列基部の顕微鏡」の名称の、米国仮特許出願60/590,768、及び60/577,433の優先権を主張する。すべてのこれらの仮出願は、すべての目的のために、ここで参照によりその全体が組み入れられる。
該当なし
ここで、nhは孔の数に等しく、wはチャネル幅である。例えば、チャネル幅が40μmである場合、流体チャネル全体にわたる40の孔があるとすると、y方向の画素寸法は、1ミクロンであることになる。x(流れ)方向では、画素寸法は、式(2)により定義されるように、光学測定ユニットの取得率と対象の有効速度とにより定められる(すなわち、x方向の分解能は、対象の移動速度u×画素取得速度Δtに等しい)。
例えば、対象の流れ速度が100ミクロン毎秒であり、検出部の読取率が1KHzである場合、x方向の最大分解能は、概略0.1ミクロンに等しいことになる。
Sh>λ、大孔限界−
この領域では、有効透過面積ATは、単純に、孔の物理断面積に等しい。
Sh<λ、小孔限界−
この領域では、孔が無限小に薄いと仮定して、Bethe(Bethe HA、「小孔による回折理論」、物理学レビュー、66、163(1944))は、有効透過面積は、ピンホール直径の6次に比例することを示した。
この式は、De Abajoが報告したシミュレーションデータと良好に一致する。しかし、光学流体顕微鏡装置性能をより有効に評価する目的のために、材料の有限の伝導度及び従って光学シミュレーション時の応答が考慮される必要がある。画素休止時間τ(またフレーム率の逆数に等しい)の間の全透過光量子計数が与えられる。
ここでhc/λは1つの単光量子が保持するエネルギーであり、Iは照明強度であり、そしてεはCCDカメラの量子効率である。
このため、ミクロン基準の分解能及び30dBの感度を有する物体の撮像が、自然光照明の使用により、容易に実行可能である。第1に、副次波長分解能は、所望の分解限界で単純にy方向の隣接する孔の間隔をあけることにより光学流体顕微鏡装置で実現可能である。孔は、x方向に数十ミクロンで離間されているので、その透過寄与は、CCDカメラ上でそれぞれから識別可能であろう。現在のナノ製造技術は、数十ナノメータ以内の分解能を有するエッチングパターンの形成を可能にする。100ナノメータ以下の分解能を有する光学流体顕微鏡装置が製作可能である。
ここで、kBは、ボルツマン定数であり、Tはシステム温度である。室温の水に流れる直径10ミクロンの物体は、概略10ミリ秒の時間周期の間に、1次元で29ナノメータの平均の偏りを受けることになる。また、ブラウン運動が作用する回転が存在する。しかし、回転の相対量及びその分解能に関する影響は、直進のブラウン運動の偏り効果とは対照的に小さい。
ここで、λは波長であり、dは伝導層厚さであり、shは孔の直径である。この式は、上述された。十分に厚い伝導層について、伝達は、λがsh/.586を超えるとき、非常に急激に低下する。「d」が大きい場合、透過曲線は、階段関数のように見えるであろう。
Claims (20)
- 表面を有する流体チャネルを有する基体と、
基体の光透過領域と、
前記光透過領域を通過する照明を供給するために用いられる照明源と、
前記照明源からの前記光透過領域を通過する光を受けるために用いられる光学検出部と、を備える光学流体顕微鏡装置。 - 前記表面は、流体チャネルの底部である、請求項1に記載の光学流体顕微鏡装置。
- 前記光透過領域は、孔である、請求項1に記載の光学流体顕微鏡装置。
- 前記光学検出部は、荷電結合素子である、請求項1に記載の光学流体顕微鏡装置。
- 前記光学検出部は、複数の離間した光検出要素を有し、
前記光検出要素は、それぞれ、前記光透過領域に対応する、請求項1に記載の光学流体顕微鏡装置。 - 前記流体チャネルは、概略1ミクロンより小さい幅を有する底部を有する、請求項1に記載の光学流体顕微鏡装置。
- 前記光透過領域は、光学的に透明の材料を有する、請求項1に記載の光学流体顕微鏡装置。
- 孔の前記配列は、前記表面の第1の側部から前記表面の第2の側部に延びる、請求項1に記載の光学流体顕微鏡装置。
- 光透過領域の前記配列は、第1の配列の光透過領域であり、前記光学装置は、第2の配列の光透過領域を有し、
前記第2の配列の光透過領域は、基準点を形成する、請求項1に記載の光学流体顕微鏡装置。 - 前記表面は、底壁の一部であり、
前記光学検出部は、前記底壁に装着される、請求項1に記載の光学流体顕微鏡装置。 - 光透過領域の前記配列は、傾いた列を形成する、請求項1に記載の光学流体顕微鏡装置。
- 照明源は、白色光を供給する、請求項1に記載の光学流体顕微鏡装置。
- 前記基体は、高分子材料を有する、請求項1に記載の光学流体顕微鏡装置。
- 細胞を有する流体を前記流体チャネルを通して流通させる、請求項1に記載の光学流体顕微鏡装置の使用方法。
- 表面を有する流体チャネルを有する基体と、
前記表面上または下方の複数の離間した発光領域と、
前記複数の離間した発光領域により生成された光を受けるために用いられる光学検出部と、を備える光学流体顕微鏡装置。 - 前記発光領域は、量子点を有する、請求項15に記載の光学流体顕微鏡装置。
- 前記複数の離間した発光領域は、2次元配列の形態である、請求項15に記載の光学流体顕微鏡装置。
- 細胞を有する流体を前記流体チャネルを通して流通させる、請求項15に記載の光学流体顕微鏡装置の使用方法。
- 表面を有する流体チャネルを有する基体と、
前記表面上または下方の少なくとも1つの光撮像要素と、
前記少なくとも1つの光撮像要素により生成された光を受けるために用いられる光学検出部と、を備える光学流体顕微鏡装置。 - 前記少なくとも1つの光撮像要素は、対角線の形態である、請求項19に記載の光学流体顕微鏡装置。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57743304P | 2004-06-04 | 2004-06-04 | |
US60/577,433 | 2004-06-04 | ||
US59076804P | 2004-07-23 | 2004-07-23 | |
US60/590,768 | 2004-07-23 | ||
US11/125,718 US7773227B2 (en) | 2004-06-04 | 2005-05-09 | Optofluidic microscope device featuring a body comprising a fluid channel and having light transmissive regions |
US11/125,718 | 2005-05-09 | ||
PCT/US2005/016876 WO2005121749A2 (en) | 2004-06-04 | 2005-05-12 | Optofluidic microscope device |
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JP2008501999A true JP2008501999A (ja) | 2008-01-24 |
JP5243790B2 JP5243790B2 (ja) | 2013-07-24 |
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JP2007515164A Expired - Fee Related JP5243790B2 (ja) | 2004-06-04 | 2005-05-12 | 光学流体顕微鏡装置 |
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US (2) | US7773227B2 (ja) |
EP (1) | EP1756260A4 (ja) |
JP (1) | JP5243790B2 (ja) |
WO (1) | WO2005121749A2 (ja) |
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US7751048B2 (en) * | 2004-06-04 | 2010-07-06 | California Institute Of Technology | Optofluidic microscope device |
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US8822894B2 (en) | 2011-01-07 | 2014-09-02 | California Institute Of Technology | Light-field pixel for detecting a wavefront based on a first intensity normalized by a second intensity |
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WO2005121749A3 (en) | 2006-12-21 |
EP1756260A2 (en) | 2007-02-28 |
WO2005121749A9 (en) | 2006-03-16 |
WO2005121749A2 (en) | 2005-12-22 |
EP1756260A4 (en) | 2012-02-29 |
US20050271548A1 (en) | 2005-12-08 |
JP5243790B2 (ja) | 2013-07-24 |
US20100290049A1 (en) | 2010-11-18 |
US7773227B2 (en) | 2010-08-10 |
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