Plasmon-Enhanced Electrocatalysis of Conductive Polymer-Based Nano-Heterojunction for Small Molecule Metabolites Diagnostics

作者全名："Huang, Yixuan; Fu, Rumin; Zhu, Zurong; Liu, Chengli; Liu, Senwei; Yu, Peng; Yan, Ling; Zhou, Zhengnan; Ning, Chengyun; Wang, Zhengao"

作者地址："[Huang, Yixuan; Fu, Rumin; Zhu, Zurong; Liu, Chengli; Liu, Senwei; Yu, Peng; Zhou, Zhengnan; Ning, Chengyun; Wang, Zhengao] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China; [Huang, Yixuan; Fu, Rumin; Zhu, Zurong; Liu, Chengli; Liu, Senwei; Yu, Peng; Zhou, Zhengnan; Ning, Chengyun; Wang, Zhengao] South China Univ Technol, Natl Engn Res Ctr Tissue Restorat & Reconstruct, Guangzhou 510641, Peoples R China; [Yan, Ling] Chongqing Med Univ, Affiliated Hosp 2, Dept Clin Lab, Chongqing 400010, Peoples R China; [Ning, Chengyun] South China Univ Technol, Met Mat Surface Functionalizat Engn Res Ctr Guangd, Guangzhou 510641, Peoples R China"

通信作者："Zhou, ZN; Ning, CY; Wang, ZA (通讯作者)，South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China.; Zhou, ZN; Ning, CY; Wang, ZA (通讯作者)，South China Univ Technol, Natl Engn Res Ctr Tissue Restorat & Reconstruct, Guangzhou 510641, Peoples R China.; Ning, CY (通讯作者)，South China Univ Technol, Met Mat Surface Functionalizat Engn Res Ctr Guangd, Guangzhou 510641, Peoples R China."

来源：ACS APPLIED MATERIALS & INTERFACES

ESI学科分类：MATERIALS SCIENCE

WOS号：WOS:000874768400001

JCR分区：Q1

影响因子：9.5

年份：2022

卷号：14

期号：35

开始页：39799

结束页：39807

文献类型：Article

关键词：conductive polymers; localized surface plasmon resonance; metabolites detection; electrocatalysis; glucose

摘要："Conductive polymers are promising electrode candidates in the nonenzymatic catalytic detection of small molecule metabolites, due to the tunable electronic conductivity and versatile modifiability. However, the complex catalytic reaction pathway of conductive polymers results in lower detection sensitivity and a narrower linear range compared with clinical metal-based and carbon-based electrodes. Localized surface plasmon resonance (LSPR), characterized by deep strong light-matter coupling, has great potential in driving surface catalytic reactions at an ultrafast rate. Here, we constructed a salix argyracea-like polypyrrole nanowires/ silver nanoparticles (PPy/AgNPs) heterojunction electrode using polydopamine as a dopant and chelator. Through cyclic voltammetry, the Mott-Schottky curve, and COMSOL simulation, we demonstrated that the LSPR-excited photocarriers enhanced PPy/AgNPs electrode electrocatalysis. Thus, the detection current response and linear range were significantly improved under the LSPR excitation when taking glucose and hydrogen peroxide as models of small molecule metabolites. Furthermore, we discussed the LSPR-enhanced detection mechanism of PPy/AgNPs electrode from the aspects of the Tafel slope, the apparent electron diffusion coefficient, and the charge transfer resistance. This strategy opens a new avenue toward the design of LSPR-enhanced conductive polymer electrodes."

基金机构："National Natural Science Foundation of China [51932002, 52101285, 52072127]; Guangzhou Key Research and Development Program [202103000053]; China Postdoctoral Science Foundation [2021M691064]; Science and Technology Innovation Team Project of Foshan [2018IT100101]; China -Singapore International Joint Research Institute [203-A018004]"

基金资助正文："ACKNOWLEDGMENTS This work was financially supported by the National Natural Science Foundation of China (Nos. 51932002, 52101285, 52072127) , the Guangzhou Key Research and Development Program (No. 202103000053) , the China Postdoctoral Science Foundation (2021M691064) , the Science and Technology Innovation Team Project of Foshan (No. 2018IT100101) , and the China -Singapore International Joint Research Institute (No. 203-A018004) ."