Development of a Glucose Biosensor Using Advanced Electrode Modified by Nanohybrid Composing Chemically Modified Graphene and Ionic Liquid
- Authors
- Yang, Min Ho; Choi, Bong Gill; Park, HoSeok; Hong, Won Hi; Lee, Sang Yup; Park, Tae Jung
- Issue Date
- Jun-2010
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Chemically modified electrode; Ionic liquids; Electron transfer; Glucose biosensor; Electrochemistry; Biosensor
- Citation
- ELECTROANALYSIS, v.22, no.11, pp 1223 - 1228
- Pages
- 6
- Journal Title
- ELECTROANALYSIS
- Volume
- 22
- Number
- 11
- Start Page
- 1223
- End Page
- 1228
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/27787
- DOI
- 10.1002/elan.200900556
- ISSN
- 1040-0397
1521-4109
- Abstract
- Nanohybrids of chemically modified graphene (CMG) and ionic liquid (IL) were prepared by sonication to modify the electrode. The modified CMG-IL electrodes showed a higher current and smaller peak-to-peak potential separation than a bare electrode due to the promoted electron transfer rate. Furthermore, the glucose oxidase (GOx) immobilized on the modified electrode displayed direct electron transfer rate and symmetrical redox potentials with a linear relationship at different scan rates. The fabricated GOx/CMG-IL electrodes were developed selective glucose biosensor with respect to a sensitivity of 0.64 mu A mM(-1), detection limit of 0.376 mM, and response time of <5 s.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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