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Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition
Open accessAbstract
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 +0.8V versus Ag∕AgCl reference electrode, ZnO nanorods based biosensor presented a high and reproducible sensitivity of 23.1μAcm−2mM−1 with a response time of less than 5s. The biosensor shows a linear range from 0.01to3.45mM and an experiment limit of detection of 0.01mM. An apparent Michaelis-Menten constant of 2.9mM shows a high affinity between glucose and GOx immobilized on ZnO nanorods.
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Cited by
A Comprehensive Review of Glucose Biosensors Based on Nanostructured Metal-Oxides
Rahman, M. M., Ahammad, A. J. S., Jin, J.-H., Ahn, S. J., & Lee, J.-J. (2010) · Sensors · doi:10.3390/s100504855 · Cited by 762
CuO Nanospheres Based Nonenzymatic Glucose Sensor
Reitz, E., Jia, W., Gentile, M., Wang, Y., & Lei, Y. (2008) · Electroanalysis · doi:10.1002/elan.200804327 · Cited by 346
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Metadata
- Authors
- Wei, A., Sun, X. W., Wang, J. X., Lei, Y., Cai, X. P., Li, C. M., Dong, Z. L., & Huang, W.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2006-09-18
- Volume
- 89
- Issue
- 12
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2079704578
- Cited by
- 442
- References
- 0
- FWCI
- 30.70
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Wei, A., Sun, X. W., Wang, J. X., Lei, Y., Cai, X. P., Li, C. M., Dong, Z. L., & Huang, W. (2006). Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition. Applied Physics Letters. https://doi.org/10.1063/1.2356307
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