Visible illumination enhanced nonenzymatic glucose photobiosensor based on TiO 2 nanorods decorated with au nanoparticles

Sin Hui Wang, Shoou Jinn Chang, Cheng Liang Hsu, Yu Jui Fang

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

A nonenzymatic glucose photobiosensor was developed based on Au-nanoparticle-decorated TiO 2 nanorods (NRs) under visible illumination. Au nanoparticles (NPs) absorbed the visible illumination, resulting in surface plasmon resonance (SPR). The SPR of the Au NPs indicated that there was a strong electric field around them, which promoted the transport of more electrons to the TiO 2 NRs and enhanced the glucose sensing properties. The sensing current under visible illumination was five times higher than in the dark when in 0.1 M NaOH solution at a potential of 0.17 V. Moreover, the Michaelis-Menten constant (K m ) of the Au NPs/TiO 2 NRs/FTO under visible illumination was 0.52 mM, which is much smaller than that reported previously. Moreover, these results indicate that the Au NPs/TiO 2 NRs/FTO under visible illumination feature outstanding properties as a nonenzymatic glucose photobiosensor.

原文English
文章編號8231189
頁(從 - 到)2052-2057
頁數6
期刊IEEE Transactions on Biomedical Engineering
65
發行號9
DOIs
出版狀態Published - 2018

All Science Journal Classification (ASJC) codes

  • 生物醫學工程

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