JPWO2008153119A1 - マイクロ流路チップ - Google Patents
マイクロ流路チップ Download PDFInfo
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- JPWO2008153119A1 JPWO2008153119A1 JP2009519312A JP2009519312A JPWO2008153119A1 JP WO2008153119 A1 JPWO2008153119 A1 JP WO2008153119A1 JP 2009519312 A JP2009519312 A JP 2009519312A JP 2009519312 A JP2009519312 A JP 2009519312A JP WO2008153119 A1 JPWO2008153119 A1 JP WO2008153119A1
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Abstract
Description
2.5cm×3cm×1mmのサイズのアモルファスカーボン板を秤量後、シリコン容器又はガラス瓶中で各種試薬に浸漬した。室温にて遮光状態で放置し、カーボン重量の経時変化を調べた。試薬浸漬後の秤量は、塩酸及び硝酸等の水系試薬の場合は水で洗浄し、また有機溶媒系試薬の場合はメタノールで洗浄して、1時間真空乾燥した後に行なった。結果を下記表2に示す。表中、「DMSO」はジメチルスルホキシド、「DMF」はジメチルホルムアミドを示す。
有機化学反応では、しばしば加熱によって反応を進める。そこで、加温下でのアモルファスカーボンの耐薬品性を検証した。
熱硬化性のフェノール樹脂を型に入れた後に、90℃および120℃の2段階の熱処理を行い、ベークライトブロックを作製した。ブロックから板厚2.7mm、37x87mmサイズの平板を切り出し、鉄定盤を貼ったスピードファム社製の両面研削機16Bを用いて研削加工を行い、ベークライト板の板厚を2.30mm、平行度1μm以下とした。次に、熱処理炉において、前記ベークライト板30枚を平滑なグラファイトのブロックに挟んで平坦化した後、徐々に加温して1200℃の熱処理を行なうことにより、ベークライト板を炭化してアモルファスカーボン板とした。その後に、カップリング砥石を用いて30x70mmのサイズに整え、更に面取り加工を行った。続いて、鉄定盤を貼ったスピードファム社製の両面研削機16Bを用いて研削加工、および研磨布を貼った別の16Bを用いて研磨加工を行い、アモルファスカーボン板を板厚1.4mm、平坦度10μm以下、表面あらさ(Ra)1.0nm以下のアモルファスカーボン基板とした。次に、大気下で富士電機社製LD励起YVO4レーザーを用いて、アモルファスカーボン基板表面上に幅100μm, 深さ100μm, 全長45 cmの流路を作製した。スポット径50μmのレーザーの波長は1060nm、出力は8W、照射速度は100mm/秒で100回スキャンとした。該流路の形状を図1に示す。図1中、1は導入口である。
実施例1で製造したマイクロ流路チップを用いて、Uozumi, Y. and Nakai, Y. Organic Letters, 2002,4, 2997-3000に記載されるSuzuki-Miyauraカップリングを行なった。
実施例1で作製した研磨後の平滑なアモルファスカーボン基板に、フェムト秒レーザー(Tiドープサファイアレーザー)を用いて、幅2 μm, 深さ 2 μm, 全長175 cm の流路を作成した。レーザーの波長は760nm、出力は8mW、パルス幅は34fs、照射速度は0.2mm/秒であった。該流路の形状を図2に示す。図2中、2は導入口である。
実施例3で製造したマイクロ流路チップを用いて、PCR反応を行なった。調製したPCR反応液の組成を下記表5に示す。鋳型DNAとしては、MCF-7Cellの粗抽出液を用いた。DNAポリメラーゼとしては、AmpliTaq Gold(商品名、Applied Biosystems社)を用い、添付の反応バッファー(10 × AmpliTaq Gold(商品名)バッファー)を用いた。Fプライマーの配列は5'-TTAATGTTAGGGTAAGGTAATAGTTTT-3'(配列番号1)、Rプライマーの配列は5'-AACCACCTAAAAAAAAAACACAA-3'(配列番号2)であった。
Claims (8)
- 表面に流路を有する炭素から成る基板と、該基板に接合したガラス板から成るカバーとで構成されるマイクロ流路チップであって、前記カバーは、前記基板と前記カバーとの接触面の少なくとも一部を加熱することにより前記基板に接合されるマイクロ流路チップ。
- 前記カバーは、前記流路の外周部の少なくとも一部を加熱することにより前記基板に接合される請求項1記載のマイクロ流路チップ。
- 前記加熱はレーザーにより行なわれる請求項1又は2記載のマイクロ流路チップ。
- 前記基板がアモルファスカーボン及び/又はグラファイトから成る請求項1ないし3のいずれか1項に記載のマイクロ流路チップ。
- 前記基板がアモルファスカーボンから成る請求項4記載のマイクロ流路チップ。
- 前記基板は、熱硬化性の樹脂基板を焼成することにより製造される請求項1ないし5のいずれか1項に記載のマイクロ流路チップ。
- 前記流路の幅が20nm〜1000μmである請求項1ないし6のいずれか1項に記載のマイクロ流路チップ。
- 前記流路の表面の少なくとも一部に所望の官能基が導入された請求項1ないし7のいずれか1項に記載のマイクロ流路チップ。
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