We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Direct electrochemistry of glucose oxidase immobilized on TiO-graphene/nickel oxide nanocomposite film and its application.
- Authors
Xu, Chun-Xuan; Huang, Ke-Jing; Chen, Xue-Min; Xiong, Xiao-Qin
- Abstract
A novel electrochemical platform based on nickel oxide (NiO) nanoparticles and TiO-graphene (TiO-Gr) was developed for the direct electrochemistry of glucose oxidase (GOD). The electrochemical behavior of the sensor was studied using cyclic voltammetry and chronoamperometry. The experimental results demonstrated that the nanocomposite well retained the activity of GOD and the modified electrode GOD/NiO/TiO-Gr/GCE exhibited excellent electrocatalytic activity toward the redox of GOD as evidenced by the significant enhancement of redox peak currents in comparison with bare GCE. The biosensor responded linearly to glucose in the range of 1.0-12.0 mM, with a sensitivity of 4.129 μA mM and a detection limit of 1.2 × 10 M under optimized conditions. The response time of the biosensor was 3 s. In addition, the developed biosensor possessed good reproducibility and stability, and there was negligible interference from other electroactive components.
- Subjects
ELECTROCHEMICAL analysis; NICKEL; NANOPARTICLES; GRAPHENE; GLUCOSE; VOLTAMMETRY
- Publication
Journal of Solid State Electrochemistry, 2012, Vol 16, Issue 12, p3747
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-012-1813-5