JP2008542786A - アプタマーを利用したカーボンナノチューブトランジスタバイオセンサーおよびこれを利用したターゲット物質の検出方法 - Google Patents
アプタマーを利用したカーボンナノチューブトランジスタバイオセンサーおよびこれを利用したターゲット物質の検出方法 Download PDFInfo
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Abstract
【選択図】 図1
Description
(a)カーボンナノチューブトランジスタのチャンネル領域をなすカーボンナノチューブにターゲット物質と結合することのできるアプタマーを固定させた構造のカーボンナノチューブトランジスタを製作する段階、
(b)前記アプタマーと特異的に結合する前記ターゲット物質がアプタマーに露出された時に表される前記カーボンナノチューブの電気伝導度の変化を測定する段階と、
(c)電気伝導度の変化を基に、前記ターゲット物質を検出/確認する段階とを含むことを特徴とするバイオセンサーを利用したターゲット物質の検出方法を提供する。
12 ソース
14 ドレーン
16 ゲート
18 カーボンナノチューブ
20 アプタマー
22 固定物質
Claims (9)
- ソース、ドレーン、ゲート、およびカーボンナノチューブからなるチャンネル領域を含むカーボンナノチューブトランジスタと、
分子認識としてカーボンナノチューブの表面に固定されたDNAアプタマーと、
前記カーボンナノチューブの表面に前記アプタマーを固定させる結合物質とからなることを特徴とするアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。 - 前記カーボンナノチューブで構成されたチャンネルが、単一壁カーボンナノチューブまたは多重壁カーボンナノチューブで製作されていることを特徴とする、請求項1記載のアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。
- 前記カーボンナノチューブで構成されたチャンネルが、トランジスタの特性が優れた各種金属酸化物ナノワイヤーまたは半導体ナノワイヤーであることを特徴とする、請求項1記載のアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。
- 前記チャンネルからなるナノワイヤーが、その種類に関わらず、アプタマーを分子認識素子として使用し、その直径が50nm以下であることを特徴とする、請求項3記載のアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。
- 前記単一壁カーボンナノチューブが、2nm以下の直径を有するカーボンナノチューブであり、前記多重壁カーボンナノチューブが、50nm以下の直径を有するカーボンナノチューブであることを特徴とする、請求項2記載のアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。
- 前記アプタマーをカーボンナノチューブの表面に固定化させるために使用する物質が、ピレンおよびカーボンナノチューブに対して親和力が高い別の分子の中から選択されることを特徴とする、請求項1記載のアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。
- 前記結合物質の疎水性を有する一方が前記カーボンナノチューブに吸着され、もう一方の固定物質が前記アプタマーと共有結合されていることを特徴とする、請求項1または6記載のアプタマーを利用したカーボンナノチューブトランジスタバイオセンサー。
- (a)カーボンナノチューブトランジスタのチャンネル領域をなすカーボンナノチューブに、ターゲット物質と結合することのできるアプタマーを固定させた構造のカーボンナノチューブトランジスタを製作する段階、
(b)前記アプタマーと特異的に結合する前記ターゲット物質がアプタマーに露出された時に表される前記カーボンナノチューブの電気伝導度の変化を測定する段階と、
(c)電気伝導度の変化を基に、前記ターゲット物質を検出/確認する段階とを含むことを特徴とする、請求項1記載のバイオセンサーを利用したターゲット物質の検出方法。 - 前記ターゲット物質が、タンパク質、ペプチド、アミノ酸、ヌクレチオド、ドラッグ、ビタミン、有機化合物、及び無機化合物からなる群から選択された少なくとも一つであることを特徴とする、請求項6記載の請求項1記載のバイオセンサーを利用したターゲット物質の検出方法。
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KR1020050056195A KR100748408B1 (ko) | 2005-06-28 | 2005-06-28 | 압타머를 이용한 탄소 나노튜브 트랜지스터 바이오센서 및이것을 이용한 타겟물질 검출 방법 |
PCT/KR2005/004372 WO2007102629A1 (en) | 2005-06-28 | 2005-12-19 | Carbon nanotube transistor biosensors with aptamers as molecular recognition elements and method for sensing a target material using the same |
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US (1) | US7854826B2 (ja) |
EP (1) | EP1896847B1 (ja) |
JP (1) | JP2008542786A (ja) |
KR (1) | KR100748408B1 (ja) |
CN (1) | CN101194162B (ja) |
WO (1) | WO2007102629A1 (ja) |
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KR100748408B1 (ko) | 2007-08-10 |
EP1896847B1 (en) | 2016-08-17 |
US20080094078A1 (en) | 2008-04-24 |
EP1896847A1 (en) | 2008-03-12 |
CN101194162B (zh) | 2013-02-27 |
US7854826B2 (en) | 2010-12-21 |
EP1896847A4 (en) | 2011-12-07 |
CN101194162A (zh) | 2008-06-04 |
WO2007102629A1 (en) | 2007-09-13 |
KR20070000667A (ko) | 2007-01-03 |
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