Title of Paper:Molecularly imprinted polymer/mesoporous carbon nanoparticles as electrode sensing material for selective detection of ofloxacin

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Date of Publication:2014-08-15

Journal:MATERIALS LETTERS

Included Journals:SCIE、EI、Scopus

Volume:129

Page Number:95-97

ISSN No.:0167-577X

Key Words:Nanoparticles; Nanocomposites; Molecularly imprinted polymer; Electrochemical detection; Mesoporous carbon; Ofloxacin

Abstract:Molecularly imprinted polymer/mesoporous carbon composite nanoparticles (MCNs@MIP) were prepared through covalent grafting of the polymer onto the surface of mesoporous carbon nanoparticles by precipitation polymerization using ofloxacin as a template. The MCNs@MIP were well monodisperse, with a diameter of similar to 220 nm. Using the MCNs@MIP as electrode sensing material, the electrode showed good electrochemical activity and selective response to ofloxacin in aqueous solutions. There was a linear relationship between the peak currents in cyclic voltammetry measurement and ofloxacin concentrations in the range of 0.5-100 mu M, with a limit of detection (S/N=3) of 80 nM. (C) 2014 Elsevier B.V. All rights reserved.