Localized surface plasmon resonance of gold nanoparticles modified Cu2O/ZnO nanorods array for hybrid glucose sensor electrode

Wen-Wei Huang; Hsi-Chao Chen; Ying-Sheng Lin; Ming-Hsien Yen; An-Hsiung Cheng

doi:10.1117/12.3008341

20 September 2023 Localized surface plasmon resonance of gold nanoparticles modified Cu₂O/ZnO nanorods array for hybrid glucose sensor electrode

Wen-Wei Huang, Hsi-Chao Chen, Ying-Sheng Lin, Ming-Hsien Yen, An-Hsiung Cheng

Author Affiliations +

Proceedings Volume 12606, Optical Manipulation and Structured Materials Conference; 126060N (2023) https://doi.org/10.1117/12.3008341
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

The proposal of the research is used localized surface plasmon resonance (LSPR) of gold nanoparticles (Au NPs) modified Cuprous Oxide/Zinc oxide nano-rod array (Cu₂O/ZnO NRA) composite electrode to apply in non-enzymatic glucose sensor. An anodic aluminum oxidation (AAO) method is used for growing aluminum array holes, then ZnO is grew in these holes by hydrothermal method to form ZnO NRA. Cu₂O is electrodeposited on ZnO NRA at different pH values from 4 to 10. Au NPs are prepared by chemical synthesis and is uniformly dispersed on the surface of Cu₂O/ZnO NRA by Nafion dispersant. The stability and linearity of the glucose sensing electrode of Cu₂O/ZnO composite materials are improved by utilizing the catalytic, stable and high-sensitivity characteristics LSPR of Au NPs. Scanning electron microscope (SEM) is used to check the array hole size of the AAO. A sorption spectrum of ZnO is used to verify the energy gap. The sensor would be tested by the chronoamperometry method with the increasing of glucose concentration. The calibration curve of glucose sensor has linear ranges: 7.41-11.111 mM and the sensitivity of 315.67 μA/M^-1 cm^-2.

Citation Download Citation

Wen-Wei Huang, Hsi-Chao Chen, Ying-Sheng Lin, Ming-Hsien Yen, and An-Hsiung Cheng "Localized surface plasmon resonance of gold nanoparticles modified Cu₂O/ZnO nanorods array for hybrid glucose sensor electrode", Proc. SPIE 12606, Optical Manipulation and Structured Materials Conference, 126060N (20 September 2023); https://doi.org/10.1117/12.3008341

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