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Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition

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Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition

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dc.contributor.author Wei, A.
dc.contributor.author Sun, Xiaowei
dc.contributor.author Wang, J. X.
dc.contributor.author Lei, Y.
dc.contributor.author Cai, X. P.
dc.contributor.author Li, Chang Ming
dc.contributor.author Dong, Zhili
dc.contributor.author Huang, W.
dc.date.accessioned 2011-07-12T01:00:29Z
dc.date.available 2011-07-12T01:00:29Z
dc.date.copyright 2006
dc.date.issued 2011-07-12
dc.identifier.citation Wei, A., Sun, X., Wang, J. X., Lei, Y., Cai, X. P., Li, C. M., et al. (2006). Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition. Applied Physics Letters, 89.
dc.identifier.uri http://hdl.handle.net/10220/6883
dc.description.abstract We report herein a glucose biosensor based on glucose oxidase (GOx) immobilized on ZnO nanorod array grown by hydrothermal decomposition. In a phosphate buffer solution with a pH value of 7.4, negatively charged GOx was immobilized on positively charged ZnO nanorods through electrostatic interaction. At an applied potential of +0.8 V versus Ag/AgCl reference electrode, ZnO nanorods based biosensor presented a high and reproducible sensitivity of 23.1 μA cm−2 mM−1 with a response time of less than 5 s. The biosensor shows a linear range from 0.01 to 3.45 mM and an experiment limit of detection of 0.01 mM. An apparent Michaelis-Menten constant of 2.9 mM shows a high affinity between glucose and GOx immobilized on ZnO nanorods.
dc.format.extent 3 p.
dc.language.iso en
dc.relation.ispartofseries Applied physics letters
dc.rights © 2006 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at: [DOI: http://dx.doi.org/10.1063/1.2356307]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
dc.subject DRNTU::Engineering::Materials::Biomaterials
dc.title Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1063/1.2356307
dc.description.version Published version

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