title: Enhanced simultaneous detection of ractopamine and salbutamol--Via electrochemical-facial deposition of MnO2 nanoflowers onto 3D RGO/Ni foam templates.
abstract: In this paper, we report a facile method to successfully fabricate MnO2 nanoflowers loaded onto 3D RGO@nickel foam, showing enhanced biosensing activity due to the improved structural integration of different electrode materials components. When the as-prepared 3D hybrid electrodes were investigated as a binder-free biosensor, two well-defined and separate differential pulse voltammetric peaks for ractopamine (RAC) and salbutamol (SAL) were observed, indicating the simultaneous selective detection of both β-agonists possible. The MnO2/RGO@NF sensor also demonstrated a linear relationship over a wide concentration range of 17 nM to 962 nM (R=0.9997) for RAC and 42 nM to 1463 nM (R=0.9996) for SAL, with the detection limits of 11.6 nM for RAC and 23.0 nM for SAL. In addition, the developed MnO2/RGO@NF sensor was further investigated to detect RAC and SAL in pork samples, showing satisfied comparable results in comparison with analytic results from HPLC.
authors.affiliation: Jiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, China. Electronic address: mingyanlyg@hotmail.com.
authors.forename: Ming Yan
authors.initials: MY
authors.lastname: Wang
authors.affiliation: Jiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhu
authors.affiliation: Jiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.affiliation: Jiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, China.
authors.forename: Juan Juan
authors.initials: JJ
authors.lastname: Ma
authors.affiliation: Jiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, China.
authors.forename: Dong En
authors.initials: DE
authors.lastname: Zhang
authors.affiliation: Jiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, China.
authors.forename: Zhi Wei
authors.initials: ZW
authors.lastname: Tong
authors.affiliation: Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute of Innovative Materials, Innovation Campus, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia. Electronic address: junc@uow.edu.au.
authors.forename: Jun
authors.initials: J
authors.lastname: Chen
mesh_terms: D000420:Albuterol / Q000302:isolation & purification*; D000818:Animals; D015374:Biosensing Techniques / Q000379:methods*; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D006108:Graphite / Q000737:chemistry; D008345:Manganese / Q000737:chemistry; D008461:Meat Products / Q000032:analysis; D009532:Nickel / Q000737:chemistry; D010087:Oxides / Q000737:chemistry; D010627:Phenethylamines / Q000302:isolation & purification*; D013552:Swine
chemical_list: D010087:Oxides; D010627:Phenethylamines; D008345:Manganese; C060897:ractopamine; D006108:Graphite; D009532:Nickel; D000420:Albuterol
keywords: 3D reduced graphene oxide foam; MnO(2) nanoflowers; Ni foam; biosensor; β-agonists