Noncovalently functionalized multi-wall carbon nanotubes in aqueous solution using the hydrophobin HFBI and their electroanalytical application
文献类型： 外文期刊
作者： Wang, Xinsheng 1 ; Wang, Huicai 1 ; Huang, Yujian 2 ; Zhao, Zixia 3 ; Qin, Xia 1 ; Wang, Yanyan 1 ; Miao, Zhiying 1 ; Che 1 ;
作者机构： 1.Nankai Univ, Coll Life Sci, Minist Educ, Key Lab Bioact Mat, Tianjin 300071, Peoples R China
2.Nankai Univ, Coll Life Sci, Key Lab Mol Microbiol & Technol, Tianjin 300071, Peoples R China
3.Chinese Acad Fishery Sci, Ctr Appl Aquat Genom, Beijing 100141, Peoples R China
关键词： Biosensor;Electrochemistry;Hydrophobin;Multi-wall carbon nanotubes;Nanocomposite materials
期刊名称：BIOSENSORS & BIOELECTRONICS （ 影响因子：10.618； 五年影响因子：9.323 ）
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收录情况： SCI
摘要： 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.
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