• 文献标题:   A novel nanozyme comprised of electro-synthesized molecularly imprinted conducting PEDOT nanocomposite with graphene-like MoS2 for electrochemical sensing of luteolin
  • 文献类型:   Article
  • 作  者:   LU XY, LI YY, DUAN XM, ZHU YF, XUE T, RAO LM, WEN YP, TIAN QY, CAI Y, XU Q, XU JK
  • 作者关键词:   nanozyme, electrochemical sensor, molecularly imprinted polymer, molybdenum disulfide, poly 3, 4ethylenedioxythiophene
  • 出版物名称:   MICROCHEMICAL JOURNAL
  • ISSN:   0026-265X EI 1095-9149
  • 通讯作者地址:  
  • 被引频次:   14
  • DOI:   10.1016/j.microc.2021.106418 EA JUN 2021
  • 出版年:   2021

▎ 摘  要

A novel nanozyme sensor based on the electro-synthesized molecularly imprinted conducting poly(3,4ethylenedioxythiophene) (PEDOT) nanocomposite with graphene-like two-dimensional layered molybdenum disulfide (MoS2) was successfully prepared for electrochemical detection and analysis of luteolin in Gnaphalium affine. MoS2-MIPs were prepared facilely by electrochemical polymerization of monomer 3,4-ethylenedioxythiophene in the presence of both modifier MoS2 and template molecule luteolin that can change the morphological structure and specific surface area of PEDOT, enhance electronic conductivity of MoS2, and improve the recognition capability and electrocatalytic capacity of electrode interface. The morphological structure of MoS2MIPs was characterized by SEM, and its electrochemical performance and sensing parameters were investigated by voltammetry. The electrochemical response of luteolin was recorded by MoS2-MIPs in the linear concentration range from 3 & times; 10-7 to 3 & times; 10-5 \M with limit of detection of 0.04 mu\M under the optimal conditions, which was successfully employed for electrochemically detecting luteolin in Gnaphalium affine with acceptable recoveries in comparison with high-performance liquid chromatography. This will provide a new nanozyme sensing platform comprised of electro-synthesized molecularly imprinted conducting polymers and graphene-like twodimensional layered nanomaterials.