title: Cobalt oxide nanosheets wrapped onto nickel foam for non-enzymatic detection of glucose.
abstract: Ultra-sensitive and highly selective detection of glucose is essential for the clinical diagnosis of diabetes. In this paper, an ultra-sensitive glucose sensor was successfully fabricated based on cobalt oxide (Co3O4) nanosheets directly grown on nickel foam through a simple hydrothermal method. Characterizations indicated that the Co3O4 nanosheets are completely and uniformly wrapped onto the surface of nickel foam to form a three-dimensional heterostructure. The resulting self-standing electrochemical electrode presents a high performance for the non-enzymatic detection of glucose, including short response time (<10 s), ultra-sensitivity (12.97 mA mM(-1) cm(-2)), excellent selectivity and low detection limit (0.058 μM, S/N = 3). These results indicate that Co3O4 nanosheets wrapped onto nickel foam are a low-cost, practical, and high performance electrochemical electrode for bio sensing.
authors.affiliation: Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, People's Republic of China.
authors.forename: Shangjun
authors.initials: S
authors.lastname: Meng
authors.forename: Meiyan
authors.initials: M
authors.lastname: Wu
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.forename: Ziyang
authors.initials: Z
authors.lastname: Dai
authors.forename: Weili
authors.initials: W
authors.lastname: Si
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Dong
mesh_terms: D015374:Biosensing Techniques; D003035:Cobalt / Q000737:chemistry*; D005947:Glucose; D009532:Nickel; D010087:Oxides / Q000737:chemistry*
chemical_list: D010087:Oxides; D003035:Cobalt; D009532:Nickel; D005947:Glucose; C060728:cobalt oxide