title: Highly sensitive Fe₃O₄ nanobeads/graphene-based molecularly imprinted electrochemical sensor for 17β-estradiol in water.
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.
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, College of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300016, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China. Electronic address: ly@tjpu.edu.cn.
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, College of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300016, China.
authors.forename: Xueru
authors.initials: X
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, College of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300016, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Li
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, College of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300016, China.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, College of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300016, China.
authors.forename: Ji
authors.initials: J
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, College of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300016, China. Electronic address: zjimei@gmail.com.
authors.forename: Jimei
authors.initials: J
authors.lastname: Zhang
mesh_terms: D055664:Electrochemical Techniques / Q000295:instrumentation* / Q000379:methods*; D004958:Estradiol / Q000032:analysis*; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D006108:Graphite; D057230:Limit of Detection; D054802:Molecular Imprinting / Q000379:methods; D049329:Nanostructures / Q000737:chemistry*; D058105:Polymerization; D012680:Sensitivity and Specificity; D013059:Spectrum Analysis, Raman; D014867:Water / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D014874:Water Pollutants, Chemical; D014867:Water; D004958:Estradiol; D006108:Graphite; D052203:Ferrosoferric Oxide
keywords: 17β-estradiol; Electrochemical sensor; Fe(3)O(4) nanobeads; Graphene; Molecularly imprinted polymer; RAFT