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A label-free photoelectrochemical aptasensor for bisphenol A based on surface plasmon resonance of gold nanoparticle-sensitized ZnO nanopencils.
Biosens Bioelectron. 2016 Dec 15; 86:315-320.BB

Abstract

A simple and novel photoelectrochemical (PEC) aptasensor for selective detection of bisphenol A (BPA) was developed using surface plasmon resonance of Au nanoparticles activated ZnO nanopencils. With the irradiation of simulated light, the increased photocurrent of nano-Au/ZnO than that of pure ZnO nanopencil is induced by the hot electrons from excited Au nanoparticles. The perfect selectivity is attributed to the specific binding of BPA to its aptamer. With the addition of BPA, the conformation of aptamer changed to a G-quadruplex structure, which resulted in the blockages of photogenerated electron-transfer channels. Based on the above mechanisms and the optimized conditions, the assembled PEC aptasensor was linear with the concentration of BPA in the range of 1-1000nmolL(-1) with a detection limit of 0.5nmolL(-1). The presence of the same concentration and similar structure of other organics did not interfere in the detection of BPA and the recovery was between 96.2% and 108.4%. It has been successfully applied to the detection of BPA in drinking water and liquid milk samples. This PEC aptasensor has good performances in novelty, selectivity, sensitivity and low cost, and it provides an alternative approach to the detection of BPA.

Authors+Show Affiliations

School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China; School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China.School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China. Electronic address: hbli@ycit.edu.cn.School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China.School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China.School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, 211 East Jianjun Road, Yancheng 224051, PR China. Electronic address: wangw@ycit.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27387262

Citation

Qiao, Yunfei, et al. "A Label-free Photoelectrochemical Aptasensor for Bisphenol a Based On Surface Plasmon Resonance of Gold Nanoparticle-sensitized ZnO Nanopencils." Biosensors & Bioelectronics, vol. 86, 2016, pp. 315-320.
Qiao Y, Li J, Li H, et al. A label-free photoelectrochemical aptasensor for bisphenol A based on surface plasmon resonance of gold nanoparticle-sensitized ZnO nanopencils. Biosens Bioelectron. 2016;86:315-320.
Qiao, Y., Li, J., Li, H., Fang, H., Fan, D., & Wang, W. (2016). A label-free photoelectrochemical aptasensor for bisphenol A based on surface plasmon resonance of gold nanoparticle-sensitized ZnO nanopencils. Biosensors & Bioelectronics, 86, 315-320. https://doi.org/10.1016/j.bios.2016.06.062
Qiao Y, et al. A Label-free Photoelectrochemical Aptasensor for Bisphenol a Based On Surface Plasmon Resonance of Gold Nanoparticle-sensitized ZnO Nanopencils. Biosens Bioelectron. 2016 Dec 15;86:315-320. PubMed PMID: 27387262.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A label-free photoelectrochemical aptasensor for bisphenol A based on surface plasmon resonance of gold nanoparticle-sensitized ZnO nanopencils. AU - Qiao,Yunfei, AU - Li,Jing, AU - Li,Hongbo, AU - Fang,Hailin, AU - Fan,Dahe, AU - Wang,Wei, Y1 - 2016/06/25/ PY - 2016/05/07/received PY - 2016/06/18/revised PY - 2016/06/21/accepted PY - 2016/7/9/entrez PY - 2016/7/9/pubmed PY - 2017/2/7/medline KW - Aptasensor KW - Au/ZnO nanopencil KW - Bisphenol A KW - Photoelectrochemistry KW - Surface plasmon resonance SP - 315 EP - 320 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 86 N2 - A simple and novel photoelectrochemical (PEC) aptasensor for selective detection of bisphenol A (BPA) was developed using surface plasmon resonance of Au nanoparticles activated ZnO nanopencils. With the irradiation of simulated light, the increased photocurrent of nano-Au/ZnO than that of pure ZnO nanopencil is induced by the hot electrons from excited Au nanoparticles. The perfect selectivity is attributed to the specific binding of BPA to its aptamer. With the addition of BPA, the conformation of aptamer changed to a G-quadruplex structure, which resulted in the blockages of photogenerated electron-transfer channels. Based on the above mechanisms and the optimized conditions, the assembled PEC aptasensor was linear with the concentration of BPA in the range of 1-1000nmolL(-1) with a detection limit of 0.5nmolL(-1). The presence of the same concentration and similar structure of other organics did not interfere in the detection of BPA and the recovery was between 96.2% and 108.4%. It has been successfully applied to the detection of BPA in drinking water and liquid milk samples. This PEC aptasensor has good performances in novelty, selectivity, sensitivity and low cost, and it provides an alternative approach to the detection of BPA. SN - 1873-4235 UR - https://www.unboundmedicine.com/medline/citation/27387262/A_label_free_photoelectrochemical_aptasensor_for_bisphenol_A_based_on_surface_plasmon_resonance_of_gold_nanoparticle_sensitized_ZnO_nanopencils_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(16)30602-9 DB - PRIME DP - Unbound Medicine ER -