Preparation of Gold Nanotube by Direct Electrodeposition for Biosensors |
| |
Authors: | Jun Wan Junjie Ding Meng Wang |
| |
Institution: | (1) Key Laboratory of Eco-Chemical Engineering, Ministry of Education; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China |
| |
Abstract: | A simple method to fabricate gold nanotube by means of a direct electrodeposition is constructed, utilizing anodic aluminum
oxide (AAO) as a template. The performances of gold nanoelectrode have been characterized with cyclic voltammetric technique
and scanning electron microscope (SEM). The SEM image of as-prepared gold nanoelectrode shows that the surface of electrode
was covered with honeycomb gold tube with average pore diameter 200 nm. Its cyclic voltammetric shows the peak current is
6.25 times larger than the bare Au electrode, so the new honeycomb gold nanoelectrode was obviously better than conventional
gold electrode. Microperoxidase-11 (MP-11) was immobilized on the electrode and characterized with cyclic voltammetric technique.
It was demonstrated that the gold nanotube not only could offer a friendly environment to immobilize MP-11, but also enhance
the electron transfer ability between protein molecules and the underlying electrodes. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|