title: Highly sensitive nonenzymatic glucose sensor based on nickel nanoparticle-attapulgite-reduced graphene oxide-modified glassy carbon electrode.
abstract: In this article, a fast and sensitive nonenzymatic glucose sensor is reported utilizing a glassy carbon electrode modified by synthesizing nanocomposites of nickel nanoparticle-attapulgite-reduced graphene oxide (Ni NPs/ATP/RGO). A facile one-step electrochemical co-deposition approach is adopted to synthesize Ni NPs-ATP-RGO nanocomposites via electrochemical reduction of mixed precursor solution containing graphene oxide (GO), attapulgite (ATP) and nickel cations (Ni(2+)) at the cathode potentials. This strategy results in simultaneous depositions of ATP, cathodic reduction of Ni(2+) into nickel nanoparticles under acidic conditions, and in situ reduction of GO. The as-prepared NiNPs/ATP/RGO-based glucose sensor exhibits outstanding performance for enzymeless glucose sensing with sensitivity (1414.4 μAmM(-1)cm(-2)), linear range (1-710μM) and detection limit (0.37μM). What is more, the sensor has excellent stability and selectivity against common interferences in real sample.
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Zongxu
authors.initials: Z
authors.lastname: Shen
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Wenyu
authors.initials: W
authors.lastname: Gao
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Pei
authors.initials: P
authors.lastname: Li
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Xiaofang
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Zheng
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100083, PR China.
authors.forename: Yuehui
authors.initials: Y
authors.lastname: Ma
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100083, PR China.
authors.forename: Weijun
authors.initials: W
authors.lastname: Guan
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China.
authors.forename: Songmei
authors.initials: S
authors.lastname: Wu
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China. Electronic address: yuyu@bjtu.edu.cn.
authors.forename: Yu
authors.initials: Y
authors.lastname: Yu
authors.affiliation: School of Science, Beijing Jiaotong University, Beijing 100044, PR China. Electronic address: dkjian@bjtu.edu.cn.
authors.forename: Kejian
authors.initials: K
authors.lastname: Ding
mesh_terms: D002244:Carbon / Q000737:chemistry*; D055664:Electrochemical Techniques / Q000295:instrumentation* / Q000379:methods*; D004566:Electrodes; D005947:Glucose / Q000032:analysis*; D006108:Graphite / Q000737:chemistry; D017616:Magnesium Compounds / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D009532:Nickel / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D017655:Silicon Compounds / Q000737:chemistry
chemical_list: D017616:Magnesium Compounds; D010087:Oxides; D017655:Silicon Compounds; D002244:Carbon; D006108:Graphite; D009532:Nickel; D005947:Glucose; C026325:attapulgite
keywords: Attapulgite; Electrochemical co-deposition; Glucose; Nickel nanoparticle; Nonenzymatic sensor