期刊
ELECTROCHIMICA ACTA
卷 73, 期 -, 页码 129-135出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.11.089
关键词
DNA; Graphene/NiO hybrid; Nonenzymatic; Glucose sensor
资金
- National Natural Science Foundation of China [50972101, 51072131]
- Guangdong Province Innovation R&D Team Plan for Energy and Environmental Materials
- SRF for ROCS, SEM
- Program of Introducing Talents of Discipline to Universities, China [B06006]
We demonstrate graphene nanosheet/NiO hybrids (GNS/NiO) as the active material for high-performance non-enzymatic glucose sensors. Such sensors are fabricated by DNA-dispersed GNS/NiO suspension deposited on glassy carbon electrodes. ss-DNA shows strong dispersing ability for the GNS/NiO hybrid materials resulting in stable water-dispersible GNS/NiO/DNA hybrids with fully separated layers. The GNS/NiO/DNA hybrids show enhanced electron transfer in the electrocatalytic reaction process, and accordingly, such hybrids modified electrodes show good sensing performance towards glucose and are characterized by large detection ranges, short response period;, low detection limit and high sensitivity and stability. (C) 2011 Elsevier Ltd. All rights reserved.
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