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ACS Appl Mater Interfaces. 2017 Jul 12;9(27):22342-22349. doi: 10.1021/acsami.7b07501. Epub 2017 Jun 28.

Ni and NiO Nanoparticles Decorated Metal-Organic Framework Nanosheets: Facile Synthesis and High-Performance Nonenzymatic Glucose Detection in Human Serum.

Author information

1
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, China.

Abstract

Ni-MOF (metal-organic framework)/Ni/NiO/carbon frame nanocomposite was formed by combing Ni and NiO nanoparticles and a C frame with Ni-MOF using an efficient one-step calcination method. The morphology and structure of Ni-MOF/Ni/NiO/C nanocomposite were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and energy disperse spectroscopy (EDS) mapping. Ni-MOF/Ni/NiO/C nanocomposites were immobilized onto glassy carbon electrodes (GCEs) with Nafion film to construct high-performance nonenzymatic glucose and H2O2 electrochemical sensors. Cyclic voltammetric (CV) study showed Ni-MOF/Ni/NiO/C nanocomposite displayed better electrocatalytic activity toward glucose oxidation as compared to Ni-MOF. Amperometric study indicated the glucose sensor displayed high performance, offering a low detection limit (0.8 μM), a high sensitivity of 367.45 mA M-1 cm-2, and a wide linear range (from 4 to 5664 μM). Importantly, good reproducibility, long-time stability, and excellent selectivity were obtained within the as-fabricated glucose sensor. Furthermore, the constructed high-performance sensor was utilized to monitor the glucose levels in human serum, and satisfactory results were obtained. It demonstrated the Ni-MOF/Ni/NiO/C nanocomposite can be used as a good electrochemical sensing material in practical biological applications.

KEYWORDS:

Ni-MOF/Ni/NiO/C nanocomposite; electrocatalytic activity; glucose; human serum

PMID:
28627873
DOI:
10.1021/acsami.7b07501
[Indexed for MEDLINE]

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