FABRICATION OF MOLECULAR IMPRINTED POLYMER (MIP)-GRAPHENE MODIFIED ELECTRODES AND INITIAL EVALUATION FOR BISPHENOL-A SENSITIVITY

Abstract

    A promising potential of a molecularly imprinted nanocomposite thin film based on poly(1,5-diaminonaphthlene) toward selectively detecting bisphenol A (BPA) was reported. This composite thin film was prepared by in-situ electrodeposition of 1,5-diaminonaphthlene)-bisphenol A in an aqueous solution onto a glassy carbon electrode modified by monolayer graphene. This electrode was easily prepared and highly stable. The template BPA was removed BPA by immersing the prepared electrode in ethanol, generating a GC/Gr/P(1,5DAN)-MIP sensor. The capacity of BPA sensing was tested at BPA concentrations of 10 M and 20 M in phosphate buffer (pH 7.2) using Cyclic Voltammetry. The results indicated the potential of this MIP sensor in BPA detection. The sensitivity of the sensors can be improved by using more highly sensitive electrochemical techniques as Differential Pulse Voltammetry or Square Wave Voltammetry.

Keywords: Graphene, electrochemical MIP, bisphenol A.