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Get Free AccessA sensitive and in situ selective label-free DNA sensor based on a Schottky-contacted ZnO nanowire (NW) device has been developed and utilized to detect the human immunodeficiency virus 1 gene in this work. Piezotronic effect on the performance of the DNA sensor is studied by measuring its output current under different compressive strains and target complementary DNA concentrations. By applying a -0.59% compressive strain to a ZnO NW-based DNA sensor, the relative current response is greatly enhanced by 454%. A theoretical model is proposed to explain the observed behaviors of the DNA sensor. This study provides a piezotronically modified method to effectively improve the overall performance of the Schottky-contacted ZnO NW-based DNA sensor.
Xiaotao Cao, Xia Cao, Huijuan Guo, Tao Li, Jie Yang, Ning Wang, Zhong Lin Wang (2016). Piezotronic Effect Enhanced Label-Free Detection of DNA Using a Schottky-Contacted ZnO Nanowire Biosensor. , 10(8), DOI: https://doi.org/10.1021/acsnano.6b04121.
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Type
Article
Year
2016
Authors
7
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1021/acsnano.6b04121
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