Plasmonic Enhancement Coupling with Defect-Engineered TiO 2-x : A Mode for Sensitive Photoelectrochemical Biosensing - Details

author：

Shu, J. (Shu, J..) ^[1] | Qiu, Z. (Qiu, Z..) ^[2] | Lv, S. (Lv, S..) ^[3] | Zhang, K. (Zhang, K..) ^[4] | Tang, D. (Tang, D..) ^[5]

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Abstract：

This　work　demonstrates　that　the　photoelectric　response　of　defect-engineered　TiO　2-x　modified　with　Au　nanoparticles　can　be　modulated　by　oxygen　vacancy　concentration　and　excitation　wavelength.　When　strongly　plasmonic　Au　nanoparticles　are　anchored　to　defect-engineered　TiO　2-x　by　DNA　hybridization,　several　times　plasmonic　enhancement　of　photocurrent　occurs　under　585　nm　excitation,　and　it　is　employed　as　a　novel　signaling　mode　for　developing　an　improved　photoelectrochemical　sensing　platform.　This　signaling　mode　combined　with　exonuclease　III-assisted　target　recycling　amplification　exhibits　excellent　analytical　performance,　which　provides　a　novel　photoelectrochemical　detection　protocol.　©　2018　American　Chemical　Society.

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[ 1 ] [Shu, J.]Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
[ 2 ] [Qiu, Z.]Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
[ 3 ] [Lv, S.]Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
[ 4 ] [Zhang, K.]Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
[ 5 ] [Tang, D.]Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China

Reprint 's Address：

[Tang, D.]Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou UniversityChina

Email：

dianping.tang@fzu.edu.cn

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Source ：

Analytical Chemistry

ISSN： 0003-2700

Year： 2018

Issue： 4

Volume： 90

Page： 2425-2429

6 . 3 5

JCR@2018

6 . 8 0 0

JCR@2023

ESI HC Threshold：209

JCR Journal Grade：1

CAS Journal Grade：1

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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