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An Antibacterial Nonenzymatic Glucose Sensor Composed of Carbon Nanotubes Decorated with Silver Nanoparticles |
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| Authors: | Yingzhu Liu Shan Liu Rongsheng Chen Weiting Zhan Hongwei Ni Feng Liang |
| Institution: | 1. School of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081, P.?R. China fax: 86‐27‐68862811;2. tel: 86‐27‐68862107;3. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, P.?R. China;4. Key Laboratory of Analytical Chemistry for Biology and Medicine of Ministry of Education, Wuhan University, Wuhan 430072, P.?R. China |
| Abstract: | A glucose sensor composed of silver nanoparticles decorated carbon nanotubes (Ag‐NPs/CNTs) prepared by ion implantation is described. Ag‐NPs with size of 2–4 nm are uniformly distributed in the CNTs after ion implantation. This process provides a strong combination between Ag‐NPs and CNTs and can effectively prevent the Ag‐NPs from aggregation. A linear range of 125 µM to 10 mM towards glucose determination was obtained. The Ag‐NPs/CNTs electrode shows minimal interferences from co‐existence species such as uric acid and ascorbic acid and an antibacterial rate of 94 % towards E. coli. |
| Keywords: | Silver nanoparticles Carbon nanotubes Ion implantation Nonenzymatic glucose sensor Antibacterial activity |