3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor

Abstract The 3D NiO hollow sphere/reduced graphene oxide (rGO) composite was synthesized according to the coordinating etching and precipitating process by using Cu2O nanosphere/graphene oxide (GO) composite as template. The morphology, structure, and composition of the materials were characterized...

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Autores principales:	Wei Huang, Shujiang Ding, Yong Chen, Wanjun Hao, Xiaoyong Lai, Juan Peng, Jinchun Tu, Yang Cao, Xiaotian Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/93ab0be9c0ab4f4092f5ee543755eb5d
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spelling	oai:doaj.org-article:93ab0be9c0ab4f4092f5ee543755eb5d2021-12-02T12:32:04Z3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor10.1038/s41598-017-05528-12045-2322https://doaj.org/article/93ab0be9c0ab4f4092f5ee543755eb5d2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05528-1https://doaj.org/toc/2045-2322Abstract The 3D NiO hollow sphere/reduced graphene oxide (rGO) composite was synthesized according to the coordinating etching and precipitating process by using Cu2O nanosphere/graphene oxide (GO) composite as template. The morphology, structure, and composition of the materials were characterized by SEM, TEM, HRTEM, XPS, and Raman spectra, and the electrochemical properties were studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and amperometry. Moreover, the electrochemical activity of the composite materials with different morphologies were also investigated, which indicating a better combination of the NiO hollow sphere and the rGO. Used as glucose sensing material, the 3D NiO hollow sphere/rGO composite modified electrode exhibits high sensitivity of ~2.04 mA mM−1 cm−2, quick response time of less than 5 s, good stability, selectivity, and reproducibility. Its application for the detection of glucose in human blood serum sample shows acceptable recovery and R.S.D. values. The outstanding glucose sensing performance should be attributed to the unique 3D hierarchical porous superstructure of the composite, especially for its enhanced electron-transfer kinetic properties.Wei HuangShujiang DingYong ChenWanjun HaoXiaoyong LaiJuan PengJinchun TuYang CaoXiaotian LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wei Huang Shujiang Ding Yong Chen Wanjun Hao Xiaoyong Lai Juan Peng Jinchun Tu Yang Cao Xiaotian Li 3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
description	Abstract The 3D NiO hollow sphere/reduced graphene oxide (rGO) composite was synthesized according to the coordinating etching and precipitating process by using Cu2O nanosphere/graphene oxide (GO) composite as template. The morphology, structure, and composition of the materials were characterized by SEM, TEM, HRTEM, XPS, and Raman spectra, and the electrochemical properties were studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and amperometry. Moreover, the electrochemical activity of the composite materials with different morphologies were also investigated, which indicating a better combination of the NiO hollow sphere and the rGO. Used as glucose sensing material, the 3D NiO hollow sphere/rGO composite modified electrode exhibits high sensitivity of ~2.04 mA mM−1 cm−2, quick response time of less than 5 s, good stability, selectivity, and reproducibility. Its application for the detection of glucose in human blood serum sample shows acceptable recovery and R.S.D. values. The outstanding glucose sensing performance should be attributed to the unique 3D hierarchical porous superstructure of the composite, especially for its enhanced electron-transfer kinetic properties.
format	article
author	Wei Huang Shujiang Ding Yong Chen Wanjun Hao Xiaoyong Lai Juan Peng Jinchun Tu Yang Cao Xiaotian Li
author_facet	Wei Huang Shujiang Ding Yong Chen Wanjun Hao Xiaoyong Lai Juan Peng Jinchun Tu Yang Cao Xiaotian Li
author_sort	Wei Huang
title	3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
title_short	3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
title_full	3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
title_fullStr	3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
title_full_unstemmed	3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
title_sort	3d nio hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/93ab0be9c0ab4f4092f5ee543755eb5d
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3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor

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