title: Three-Dimensional Ni2P Nanoarray: An Efficient Catalyst Electrode for Sensitive and Selective Nonenzymatic Glucose Sensing with High Specificity.
abstract: It is highly attractive to construct a natural enzyme-free electrode for sensitive and selective detection of glucose. In this Letter, we report that a Ni2P nanoarray on conductive carbon cloth (Ni2P NA/CC) behaves as an efficient three-dimensional catalyst electrode for glucose electrooxidation under alkaline conditions. Electrochemical measurements demonstrate that the Ni2P NA/CC, when used as a nonenzymatic glucose sensor, offers superior analytical performances with a short response time of 5 s, a wide detection range of 1 μM to 3 mM, a low detection limit of 0.18 μM (S/N = 3), a response sensitivity of 7792 μA mM(-1) cm(-2), and satisfactory selectivity, specificity, and reproducibility. Moreover, it can also be used for glucose detection in human blood serum, promising its application toward determination of glucose in real samples.
authors.affiliation: College of Chemistry, Sichuan University , Chengdu 610064, Sichuan, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
authors.affiliation: College of Chemistry, Sichuan University , Chengdu 610064, Sichuan, China.
authors.forename: Danni
authors.initials: D
authors.lastname: Liu
authors.affiliation: College of Chemistry, Sichuan University , Chengdu 610064, Sichuan, China.
authors.forename: Wenbo
authors.initials: W
authors.lastname: Lu
authors.affiliation: Chengdu Institute of Geology and Mineral Resources , Chengdu 610081, Sichuan, China.
authors.forename: Kunyang
authors.initials: K
authors.lastname: Wang
authors.affiliation: Chengdu Institute of Geology and Mineral Resources , Chengdu 610081, Sichuan, China.
authors.forename: Gu
authors.initials: G
authors.lastname: Du
authors.affiliation: Chemistry Department, King Abdulaziz University , Jeddah 21589, Saudi Arabia.
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.affiliation: College of Chemistry, Sichuan University , Chengdu 610064, Sichuan, China.
authors.forename: Xuping
authors.initials: X
authors.lastname: Sun
mesh_terms: D001786:Blood Glucose / Q000032:analysis*; D002384:Catalysis; D004566:Electrodes; D006801:Humans; D036103:Nanotechnology; D009532:Nickel / Q000737:chemistry*; D010316:Particle Size; D010758:Phosphorus / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D001786:Blood Glucose; D010758:Phosphorus; D009532:Nickel