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A novel nanozyme comprised of electro-synthesized molecularly imprinted conducting PEDOT nanocomposite with graphene-like MoS2 for electrochemical sensing of luteolin.
- Source :
-
Microchemical Journal . Sep2021, Vol. 168, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- [Display omitted] • Nanozyme sensor comprised of electro-synthesized imprinted PEDOT with graphene-like MoS 2 was prepared. • Imprinted nanozyme was employed for detection of luteolin with good electrochemical sensing performance. • The proposed method electrochemically detected luteolin in Gnaphalium affine obtained acceptable recoveries. A novel nanozyme sensor based on the electro-synthesized molecularly imprinted conducting poly(3,4-ethylenedioxythiophene) (PEDOT) nanocomposite with graphene-like two-dimensional layered molybdenum disulfide (MoS 2) was successfully prepared for electrochemical detection and analysis of luteolin in Gnaphalium affine. MoS 2 -MIPs were prepared facilely by electrochemical polymerization of monomer 3,4-ethylenedioxythiophene in the presence of both modifier MoS 2 and template molecule luteolin that can change the morphological structure and specific surface area of PEDOT, enhance electronic conductivity of MoS 2 , and improve the recognition capability and electrocatalytic capacity of electrode interface. The morphological structure of MoS 2 -MIPs was characterized by SEM, and its electrochemical performance and sensing parameters were investigated by voltammetry. The electrochemical response of luteolin was recorded by MoS 2 -MIPs in the linear concentration range from 3 × 10-7 to 3 × 10-5 Μ with limit of detection of 0.04 μΜ 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 two-dimensional layered nanomaterials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0026265X
- Volume :
- 168
- Database :
- Academic Search Index
- Journal :
- Microchemical Journal
- Publication Type :
- Academic Journal
- Accession number :
- 151350715
- Full Text :
- https://doi.org/10.1016/j.microc.2021.106418