• 文献标题:   A sensitive sensor based on molecularly imprinted polypyrrole on reduced graphene oxide modified glassy carbon electrode for nevirapine analysis
  • 文献类型:   Article
  • 作  者:   POUR BH, HAGHNAZARI N, KESHAVARZI F, AHMADI E, ZARIF BR
  • 作者关键词:  
  • 出版物名称:   ANALYTICAL METHODS
  • ISSN:   1759-9660 EI 1759-9679
  • 通讯作者地址:  
  • 被引频次:   5
  • DOI:   10.1039/d1ay00500f EA SEP 2021
  • 出版年:   2021

▎ 摘  要

A molecularly imprinted polymer (MIP) sensor was offered for nevirapine (NVP) analysis based on the electropolymerization of pyrrole (Py) on electrochemically reduced graphene oxide (ErGO) immobilized on a glassy carbon electrode (GCE). Electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and atomic force microscope (AFM) were applied to characterize the proposed sensor (MIP/ErGO/GCE). The electrochemical operation of this sensor for NVP analysis was tested using differential pulse voltammetry (DPV) and cyclic voltammetry (CV) methods in an alkaline medium. The prepared MIP/ErGO/GCE exhibited better analytical performance than other modified electrodes toward NVP detection. The offered sensor depicted a linearity range between 0.005 mu M and 400 mu M with a limit of detection (LOD) of 2 nM under optimal conditions. Notably, the offered sensor illustrated excellent selectivity, good reproducibility, acceptable repeatability, and reliable long-term performance. These experiments depicted the constructed sensor as a favorable and good sensing element towards NVP monitoring in pharmaceutical and serum samples.