Noncovalently functionalized multi-wall carbon nanotubes in aqueous solution using the hydrophobin HFBI and their electroanalytical application.
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.
Wang
Xinsheng
X
The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Weijin Road No. 94, Tianjin 300071, PR China.
Wang
Huicai
H
Huang
Yujian
Y
Zhao
Zixia
Z
Qin
Xia
X
Wang
Yanyan
Y
Miao
Zhiying
Z
Chen
Qiang
Q
Qiao
Mingqiang
M
D015374:Biosensing Techniques / Q000379:methods* / Q000706:statistics & numerical data; D055664:Electrochemical Techniques; D005656:Fungal Proteins / Q000737:chemistry*; D005947:Glucose / Q000032:analysis; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry / Q000648:ultrastructure; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D012996:Solutions; D014242:Trichoderma / Q000737:chemistry; D014867:Water
D005656:Fungal Proteins; D037742:Nanotubes, Carbon; D012996:Solutions; D014867:Water; D005947:Glucose