Electrochemical sensors based on magnetic molecularly imprinted polymers: A review

Anal Chim Acta. 2017 Apr 1:960:1-17. doi: 10.1016/j.aca.2017.01.003. Epub 2017 Jan 5.

Abstract

Participation of magnetic component in molecularly imprinted polymers (MIPs) has facilitated enormously the incorporation of these polymeric materials on electrode surfaces allowing the design of electrochemical sensors with very attractive analytical characteristics in terms of simplicity, reproducibility, low fabrication cost, high sensitivity and selectivity and rapid assay time. The magnetically susceptible resultant MIPs (MMIPs) allowed a simple and fast elution of the template molecules from MMIPs, are easily and faster collected without filtration, centrifugation or other complex operations and are also faster assembled and removed from the electrode surface by simply using an external magnetic field. A wide range of different (nano)materials such as gold nanoparticles (AuNPs), graphene oxide, single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs) as well as different electrode modifiers (ionic liquids (ILs) and surfactants/dispersants) have been incorporated into the MMIPs to improve the analytical performance of the resulting electrochemical sensors which have demonstrated great promise for determination of relevant analytes in environmental, food and clinical analyses.

Keywords: AuNPs; CNTs; Electrochemical sensor; Fe(3)O(4) NPs; Graphene; Magnetic molecularly imprinted polymers.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Electrochemistry / instrumentation*
  • Humans
  • Magnetic Phenomena*
  • Molecular Imprinting*
  • Polymers / chemical synthesis*
  • Polymers / chemistry

Substances

  • Polymers