Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 235, Issue -, Pages 162-169Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.05.068
Keywords
Self-supporting; Glucose biosensor; Electron transfer; Detection potential; Multiple responses
Funding
- Qingdao City Programs for Science and Technology Plan Projects [15-9-1-82-jch]
- Fundamental Research Funds for the Central University [201513008]
- National Natural Science Foundation [51072188]
- Natural Science Foundation of Shandong Province [ZR2014EMM021]
- Shandong Province Programs for Science and Technology Development [2013GHY11508]
Ask authors/readers for more resources
A new Co3O4 electrode material with self-supporting urchin-like hollow microspheres structure was fabricated via a self-assembly method. Incorporating the adsorption and entrapment, the high porosity and large surface area were favorable for the highly effective immobilization of glucose oxidases. Multiple responses, consisting of enzymatic and material catalysis, were subsequently employed and achieved on the microsphere surface. As the radially oriented nanowires array provided a vast number of catalytic active sites, which lowered the energy barrier of glucose redox and acted as a media to boost the electron transfer, the detection potential was largely decreased. Furthermore, numerous electron transport paths in a short distance were formed among the interconnected bridge-like nanowires, resulting in improved electron transfer efficiency. The prepared glucose biosensor exhibited extra high sensitivity (102.77 mu amM(-1) cm 2), fast response (3 s) and outstanding selectivity and stability at a lower applied potential (0.35 (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available