MIPdatabase
Authors: Chen SN, Bu MK, You XY, Dai ZX, Shi JJ
Article Title: High-performance detection of p-nitroaniline on defect-graphene SERS substrate utilizing molecular imprinting technique.
Publication date: 2021
Journal: Microchemical Journal
Volume: 168
Article Number: 106536.
DOI: 10.1016/j.microc.2021.106536
Alternative URL: https://www.sciencedirect.com/science/article/pii/S0026265X21006226
Abstract: We report a novel surface-enhanced Raman scattering (SERS) substrate for detecting p-nitroaniline (PNA) in real water samples, which possesses excellent sensitivity, good selectivity, and high SERS activity. Specifically, the uniform distribution structure of defect-graphene/Ag (DG/Ag) is obtained by acid etching graphene loading silver nanoparticles. The Molecularly imprinted polymer (MIP) film is copolymerized on the surface of DG/Ag by function monomer, crosslinker and template of PNA. A DG/Ag-MIP SERS substrate is obtained through polymerization of molecular imprinted polymer (MIP) on defect-graphene/Ag (DG/Ag) supporting materials. Our results signify that this new SERS substrate reveals excellent performance for PNA with an enhancement factor of 2.42 × 10^7. Moreover, DG/Ag-MIP substrate exhibits outstanding capability to detect PNA molecules with detection limit approximately reaching 1.0 × 10-14 M. These experimental results imply that the DG/Ag-MIP SERS substrate possesses potential application for sensing detection of PNA in environment
Template and target information: p-nitroaniline, PNA
Author keywords: Surface-enhanced Raman scattering, molecularly imprinted polymer, p-Nitroaniline, Defect graphene, Ag nanoparticles, Environmental monitoring
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