title: Study on the electrochemical catalytic properties of the topological insulator Bi₂Se₃.
abstract: In this work, the electrochemical catalytic properties of the topological insulator bismuth selenide (Bi₂Se₃) were first studied. In the presence of Bi₂Se₃ the reduction current of dissolved O₂ could be significantly enhanced. The electron transfer resistivity (Rct) was greatly reduced at the Bi₂Se₃-PVP modified electrode as evidenced by the electrochemical impedance spectrometry, implying that the topological insulator Bi₂Se₃ could facilitate the electron transfer at the interface due to the excellent surface conductivity. Based on the high electrochemical catalytic activity for the reduction of dissolved O₂, the Bi₂Se₃-PVP modified electrode was used to detect glucose with the modification of glucose oxidase, and applied for the detection of glucose in human blood serum.
authors.affiliation: The Key Lab of Analysis and Detection Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, PR China.
authors.forename: Shan
authors.initials: S
authors.lastname: Chen
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Fang
authors.forename: Juan
authors.initials: J
authors.lastname: Li
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Sun
authors.forename: Guo-Nan
authors.initials: GN
authors.lastname: Chen
authors.forename: Huang-Hao
authors.initials: HH
authors.lastname: Yang
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D001729:Bismuth / Q000737:chemistry*; D001786:Blood Glucose / Q000032:analysis*; D002384:Catalysis; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D005949:Glucose Oxidase / Q000737:chemistry; D006801:Humans; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D011205:Povidone / Q000737:chemistry; D012643:Selenium / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D001786:Blood Glucose; D005949:Glucose Oxidase; D011205:Povidone; D012643:Selenium; D010100:Oxygen; D001729:Bismuth