title: In situ polymerization of highly dispersed polypyrrole on reduced graphite oxide for dopamine detection.
abstract: A composite consisting of reduced graphite oxide and highly dispersed polypyrrole nanospheres was synthesized by a straightforward technique, by in situ chemical oxidative polymerization. The novel polypyrrole nanospheres can prevent the aggregation of reduced graphite oxide sheets by electrostatic repulsive interaction, and enhance their electrochemical properties in the nano-molar measurement of dopamine in biological systems with a linear range of 1-8000 nM and a detection limit as low as 0.3 nM.
authors.affiliation: School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Qian
authors.forename: Chenfei
authors.initials: C
authors.lastname: Yu
authors.forename: Shishan
authors.initials: S
authors.lastname: Wu
authors.forename: Jian
authors.initials: J
authors.lastname: Shen
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D004298:Dopamine / Q000097:blood*; D055664:Electrochemical Techniques / Q000379:methods; D006108:Graphite / Q000737:chemistry*; D006801:Humans; D057230:Limit of Detection; D054118:Nanospheres / Q000737:chemistry; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*
chemical_list: D010087:Oxides; D011108:Polymers; D011758:Pyrroles; C067635:polypyrrole; D006108:Graphite; D004298:Dopamine
keywords: Dopamine; Electrochemical detection; High dispersibility; Polypyrrole nanospheres; Reduced graphite oxide