JP2013519671A - 高繰返周波数の超高速パルスレーザ溶発による、有機化合物のナノ粒子の液中生成方法 - Google Patents
高繰返周波数の超高速パルスレーザ溶発による、有機化合物のナノ粒子の液中生成方法 Download PDFInfo
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Abstract
Description
本出願は、2010年2月10日に出願した米国仮出願第61/302,984号明細書の利益を請求するものである。
生物学的システムで生物学的使用効率と使用性とを増加するために、水及び他の液体で溶解度が不十分な有機化合物からナノ粒子を形成する方法を開発することが望まれる。そのうえ、凝集を回避し、安定剤の任意の必要性を解消し、迅速なスループットを提供し、大量生産のレベルをスケールアップする、有機性のナノ粒子を生産する方法を開発することが有用と思われる。
Claims (23)
- (a) 有機化合物材料のターゲットの少なくとも一部がパルスレーザビームの波長に対して実質的に透明な液体と接触した状態で、前記ターゲットを500ピコ秒以下のパルス幅の超高速パルスレーザで照射し、溶発によって前記液体中の有機化合物材料のナノ粒子の懸濁液を生成するステップと、
(b) 前記ターゲットの表面に対する前記液体の相対的動き、及び、前記パルスレーザビームと前記ターゲットとの間の相対運動の、一方又は両方を行うステップ、
と含むことを特徴とする、貧溶媒に有機材料のナノ粒子のコロイド懸濁液を生成する方法。 - ステップ(a)が、約1Hz〜100MHzの範囲の繰返周波数の前記パルスレーザビームで照射することを含むことを特徴とする請求項1に記載の方法。
- ステップ(a)が、約10kHz〜100MHzの範囲の繰返周波数の前記パルスレーザビームで照射することを含むことを特徴とする請求項1に記載の方法。
- ステップ(a)が、10フェムト秒〜500ピコ秒の範囲のパルス幅の前記パルスレーザビームで照射することを含むことを特徴とする請求項2に記載の方法。
- ステップ(a)が、100フェムト秒〜200ピコ秒の範囲のパルス幅の前記パルスレーザビームで照射することを含むことを特徴とする請求項2に記載の方法。
- ステップ(a)が、1nJ〜10mJの範囲のパルスエネルギの前記パルスレーザビームで照射することを含むことを特徴とする請求項1に記載の方法。
- ステップ(a)が、100nJ〜10μJの範囲のパルスエネルギの前記パルスレーザビームで照射することを含むことを特徴とする請求項1に記載の方法。
- ステップ(a)が、10mJ/cm2〜5J/cm2のレーザ・フルエンスの前記パルスレーザビームで、ターゲット表面を照射することを含むことを特徴とする請求項1に記載の方法。
- ステップ(a)が、400nm〜4000nmの範囲の波長の前記パルスレーザビームで照射することを含むことを特徴とする請求項1に記載の方法。
- ステップ(a)は、有機化合物材料を特定の形状にすることにより、有機化合物材料のターゲットをつくるステップを更に含むことを特徴とする請求項1に記載の方法。
- ステップ(a)が、前記液体として脱イオン水を用いることを含むことを特徴とする請求項1に記載の方法。
- 0.05MΩ.cm以上の抵抗率を有する前記脱イオン水を用いることを更に含むことを特徴とする請求項11に記載の方法。
- ステップ(b)が、1mL/秒以上の流速で前記ターゲットの表面に前記液体を流すことを含むことを特徴とする請求項1に記載の方法。
- ステップ(b)が、フロー・セルに閉じ込まれた前記液体の流れを形成することを含むことを特徴とする請求項1に記載の方法。
- レーザビームに対して透過性の光学的な窓を、前記フロー・セルと共に更に含むことを特徴とする請求項14に記載の方法。
- ステップ(b)が、液体ポンプを用いて前記ターゲットの表面に液体の流れを形成することを含むことを特徴とする請求項1に記載の方法。
- ステップ(b)が少なくとも一つの光学部品を提供することを含んでいて、光学部品はレーザビームを前記ターゲットに相応して移動することを特徴とする請求項1に記載の方法。
- 前記レーザビームを移動するために、少なくとも一つの光学部品として、少なくとも一つの振動ミラーを用いることを更に含むことを特徴とする請求項17に記載の方法。
- 10Hz以上の周波数と、0.1mrad以上の角度振幅とを有する振動ミラーを用いることを更に含むことを特徴とする請求項18に記載の方法。
- 前記レーザビームの焦点が、前記ターゲット上を0.1m/秒以上の速度で移動するように、前記ターゲット上の前記レーザビームの移動をガイドすることを含むことを特徴とする請求項18に記載の方法。
- ステップ(b)が、前記ターゲット周辺の領域を冷却し、前記ナノ粒子をその領域から離して収集位置に向けて送る、前記液体の流れを形成することを含むことを特徴とする請求項1に記載の方法。
- 請求項1に記載の方法により作成したナノ粒子のコロイド懸濁液。
- 前記コロイド懸濁液が、安定化学薬剤のない条件において、生成後の少なくとも一週間、25℃で貯蔵される時に凝集しないことを特徴とする請求項22に記載のナノ粒子のコロイド懸濁液。
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US30298410P | 2010-02-10 | 2010-02-10 | |
US61/302,984 | 2010-02-10 | ||
US12/951,496 | 2010-11-22 | ||
US12/951,496 US8992815B2 (en) | 2010-02-10 | 2010-11-22 | Production of organic compound nanoparticles with high repetition rate ultrafast pulsed laser ablation in liquids |
PCT/US2011/023530 WO2011100154A1 (en) | 2010-02-10 | 2011-02-03 | Production of organic compound nanoparticles with high repetition rate ultrafast pulsed laser ablation in liquids |
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JP2013519671A5 JP2013519671A5 (ja) | 2015-08-20 |
JP6076742B2 JP6076742B2 (ja) | 2017-02-08 |
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2011
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- 2011-02-03 CN CN2011800089575A patent/CN102802934A/zh active Pending
- 2011-02-03 WO PCT/US2011/023530 patent/WO2011100154A1/en active Application Filing
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JP6076742B2 (ja) | 2017-02-08 |
CN102802934A (zh) | 2012-11-28 |
WO2011100154A1 (en) | 2011-08-18 |
US8992815B2 (en) | 2015-03-31 |
US20110196044A1 (en) | 2011-08-11 |
US20150258631A1 (en) | 2015-09-17 |
DE112011100502T5 (de) | 2013-03-28 |
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