1. Investigation of Flexible Arrayed Lactate Biosensor Based on Copper Doped Zinc Oxide Films Modified by Iron–Platinum Nanoparticles.
- Author
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Nien, Yu-Hsun, Kang, Zhi-Xuan, Su, Tzu-Yu, Ho, Chih-Sung, Chou, Jung-Chuan, Lai, Chih-Hsien, Kuo, Po-Yu, Lai, Tsu-Yang, Dong, Zhe-Xin, Chen, Yung-Yu, and Huang, Yu-Hao
- Subjects
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ZINC oxide films , *PLATINUM , *FOURIER transform infrared spectroscopy , *LACTATES , *ZINC electrodes , *BIOSENSORS , *IRON powder , *GOLD nanoparticles - Abstract
Potentiometric biosensors based on flexible arrayed silver paste electrode and copper-doped zinc oxide sensing film modified by iron-platinum nanoparticles (FePt NPs) are designed and manufactured to detect lactate in human. The sensing film is made of copper-doped zinc oxide (CZO) by a radio frequency (RF) sputtering system, and then modified by iron-platinum nanoparticles (FePt NPs). The surface morphology of copper-doped zinc oxide (CZO) is analyzed by scanning electron microscope (SEM). FePt NPs are analyzed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The average sensitivity, response time, and interference effect of the lactate biosensors are analyzed by voltage-time (V-T) measurement system. The electrochemical impedance is analyzed by electrochemical impedance spectroscopy (EIS). The average sensitivity and linearity over the concentration range 0.2–5 mM are 25.32 mV/mM and 0.977 mV/mM, respectively. The response time of the lactate biosensor is 16 s, with excellent selectivity. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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