In this paper we present a new fabrication technique that only uses conventional techniques of microtechnology such as microlithography, thin-film deposition and directional ion beam etching to makevery narrow, wafer-scale length platinum (Pt) nanowires, named deposition and etching under angles (DEA). Then fabricated Pt nanowires electrodes were modified by using several chemicals to immobilize glucose oxidase (GOD) enzyme for application in glucose detection. A cyclic voltammetry (CV) technique was used to determine glucose concentrations. The detection results showed that GOD was immobilized on all of the tested surfaces and the highest glucose detection sensitivity of 60Î¼M was obtained when the Pt nanowires were modified by PVA. Moreover, the sensors also showed very high current response when the Pt nanowires were modified with the cysteamine SAM.
Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
How to Cite
Pham, T., Pham, B., Dang, D., Phan, T., Tran, D., Le, T., Dang, C., & Tong, H. (2013). Fabrication and surface modification of PT nanowires for glucose detection. Science and Technology Development Journal, 16(1), 26-36. https://doi.org/https://doi.org/10.32508/stdj.v16i1.1416
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Science and Technology Development Journal (STDJ) (1859-0128) is the official journal of Viet Nam National University Ho Chi Minh City, Viet Nam, published by Viet Nam National University Ho Chi Minh City, Viet Nam. Science & Technology Development Journal is a multiple discipline science journal covering from natural science, engineering & technology, humanities, art, laws, economics, earth science, environment, social sciences and health sciences.