Noncovalently functionalized multi-wall carbon nanotubes in aqueous solution using the hydrophobin HFBI and their electroanalytical application.
Noncovalently functionalized multi-wall carbon nanotubes in aqueous solution using the hydrophobin HFBI and their electroanalytical application.
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DOI：
10.1016/j.bios.2010.08.024
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发表时间：
2010-11
影响因子：
12.6
通讯作者：
Xinsheng Wang;Huicai Wang;Yujian Huang;Zixia Zhao;X. Qin;Yanyan Wang;Zhiying Miao;Qiang Chen
中科院分区：
文献类型：
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作者：
Xinsheng Wang;Huicai Wang;Yujian Huang;Zixia Zhao;X. Qin;Yanyan Wang;Zhiying Miao;Qiang Chen
开发了一种新的非共价方法，用于使用疏水蛋白HFBI功能化多壁碳纳米管（MWNTs）。由于HFBI的两亲性，它可以被吸附到MWNTs表面，形成在水中分散性良好的纳米复合材料。采用扫描电镜（SEM）、透射电镜（TEM）和水接触角（WCA）等方法对纳米复合材料进行了表征。在此基础上，采用一步浇铸法制备了基于HFBI-MWNTs的葡萄糖生物传感器。该传感器具有灵敏度高、线性范围宽、检测限低、响应速度快等特点，有望应用于传感器、生物传感器等电化学器件的设计。
A novel noncovalent approach was developed for the functionalization of multi-wall carbon nanotubes (MWNTs) using the hydrophobin, HFBI. Owing to the amphipathic nature, HFBI can be adopted onto the surface of MWNTs to form HFBI–MWNTs nanocomposite with good dispersion in water. The HFBI–MWNTs nanocomposite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and water contact angle measurements (WCA). Furthermore, a glucose biosensor was developed based on HFBI–MWNTs by a one-step casting method. The resulting biosensor displayed high sensitivity, wider linear range, low detection limit, and fast response for glucose detection, which implicated that the HFBI–MWNTs nanocomposite film holds great promise in the design of electrochemical devices, such as sensors and biosensors.