| Literature DB >> 26073816 |
Ying Li1, Xueru Zhao2, Ping Li2, Yanfeng Huang2, Ji Wang2, Jimei Zhang3.
Abstract
A novel molecularly imprinted electrochemical sensor based on Fe3O4 nanobeads immobilized on graphene (Fe3O4-MIP@RGO) has been developed for detecting 17β-estradiol (17β-E2) in water using reversible addition fragmentation chain transfer (RAFT) polymerization technique. 17β-E2 can be detected by this electrochemical sensor through the response current change before and after binding 17β-E2. The Fe3O4-MIP@RGO-based sensor amplifies the response current in differential pulse voltammetry measurement, allowing the detection limit reaching 0.819 nM in a wide linear range from 0.05 to 10 μM. Moreover, Fe3O4-MIP@RGO-based sensor exhibits high selectivity and sensitivity towards 17β-E2. This MIP electrochemical sensor has a promising potential in the detection of 17β-E2 in water.Entities:
Keywords: 17β-estradiol; Electrochemical sensor; Fe(3)O(4) nanobeads; Graphene; Molecularly imprinted polymer; RAFT
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Year: 2015 PMID： 26073816 DOI： 10.1016/j.aca.2015.05.022
Source DB: PubMed Journal: Anal Chim Acta ISSN： 0003-2670 Impact factor: 6.558