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Proceedings Paper

Detection of esophageal cancer cell by photoelectrochemical Cu2O/ZnO biosensor (Conference Presentation)
Author(s): Chao-Hsin Hsu; Cheng-Hsun Chu; Weichung Chen; I-Chen Wu; Ming Tsang Wu; Chie-Tong Kuo; Raymond Chien-Chao Tsiang; Hsiang-Chen Wang

Paper Abstract

We have demonstrated a Cu2O/ZnO nanorods (NRs) array p-n heterostructures photoelectrochemical biosensor. The electrodeposition of Cu2O at pH 12 acquired the preferably (111) lattice planes, resulting in the largest interfacial electric field between Cu2O and ZnO, which finally led to the highest separation efficiency of photogenerated charge carriers. High verticality ZnO nanorods by seed layer and thermal annealing assist the hydrothermal growth. The optimized Cu2O/ZnO NRs array p-n heterostructures exhibited enhanced PEC performance, such as elevated photocurrent and photoconversion efficiency, as well as excellent sensing performance for the sensitive detection of four strains of different races and different degree of cancer cell which made the device self-powered. We got spectral response characteristics and operating wavelength range of biosensor, and to verify the biological characteristics of cancer cells wafer react with different stages of cancer characterized by a cancer measured reaction experiment.

Paper Details

Date Published: 27 April 2016
PDF: 1 pages
Proc. SPIE 9725, Frontiers in Biological Detection: From Nanosensors to Systems VIII, 972504 (27 April 2016); doi: 10.1117/12.2212073
Show Author Affiliations
Chao-Hsin Hsu, National Chung Cheng Univ. (Taiwan)
Cheng-Hsun Chu, National Chung Cheng Univ. (Taiwan)
Weichung Chen, Kaohsiung Medical Univ. (Taiwan)
I-Chen Wu, Kaohsiung Medical Univ. (Taiwan)
Ming Tsang Wu, Kaohsiung Medical Univ. (Taiwan)
Chie-Tong Kuo, National Sun Yat-Sen Univ. (Taiwan)
Raymond Chien-Chao Tsiang, National Chung Cheng Univ. (Taiwan)
Hsiang-Chen Wang, National Chung Cheng Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9725:
Frontiers in Biological Detection: From Nanosensors to Systems VIII
Benjamin L. Miller; Brian T. Cunningham, Editor(s)

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