Nanosheets-assembled hierarchical microstructured Ni(OH)(2) hollow spheres for highly sensitive enzyme-free glucose sensors

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	Nanosheets-assembled hierarchical microstructured Ni(OH)(2) hollow spheres for highly sensitive enzyme-free glucose sensors
	Lu, Pan 1,2; Liu, Qibin 1; Xiong, Yuzhu 1; Wang, Qing 1; Lei, Yuting 1; Lu, Shengjun 1,2; Lu, Liwei 2; Yao, Li 2
刊名	ELECTROCHIMICA ACTA
	2015-06-20
卷号	168 页码:148-156
关键词	Ni(OH)(2) hollow spheres Template-free Glucose Enzyme-free Electrocatalytic oxidation
英文摘要	Hollow spheres have shown fascinating application in bionanotechnology recently, including bioanalysis, diagnostics, drug delivery and therapeutics. However the exploration of hollow spheres via template- and surfactant-free synthesis and using them as sensing material is still at an early stage. In this regard, we described a novel solution-based chemical process to fabricate Ni(OH)(2) hollow spheres (Ni(OH)(2)-HS) assembled from nanosheet building blocks. Ni(OH)(2)-HS can be obtained with this template-free approach under one-step hydrothermal method. Various techniques, including X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), were used to characterize the morphology and the structure of the as-prepared samples. It was confirmed that the products possess a hollow microsphere structure constructed by interconnecting nanosheet framework. The as-obtained hierarchical structured Ni(OH)(2)-HS showed excellent catalytic activity toward the oxidation of glucose in alkaline solutions, which enables the Ni(OH)(2)-HS to be used in enzyme-free amperometric sensors for glucose determination. Furthermore, Ni(OH)(2)-HS modified glassy carbon electrode (Ni(OH)(2)-HS/GCE) exhibited a good ability to suppress the background current from large excess ascorbic acid (AA), uric acid (UA) and L-cysteine. Under the optimal conditions, selective detection of glucose in a linear concentration range of 0.8749 mu M-7.781 mM was obtained with the limit of 0.1 mu M (S/N = 3). Meanwhile, the sensors were also applied to the detection of glucose content in real serum sample with satisfactory results. (C ) 2015 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2015-11-02
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28106]
专题	化学研究所_分子动态与稳态结构实验室
作者单位	1.Guizhou Univ, Coll Mat Sci & Met Engn, Guiyang 550025, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Lu, Pan,Liu, Qibin,Xiong, Yuzhu,et al. Nanosheets-assembled hierarchical microstructured Ni(OH)(2) hollow spheres for highly sensitive enzyme-free glucose sensors[J]. ELECTROCHIMICA ACTA,2015,168:148-156.
APA	Lu, Pan.,Liu, Qibin.,Xiong, Yuzhu.,Wang, Qing.,Lei, Yuting.,...&Yao, Li.(2015).Nanosheets-assembled hierarchical microstructured Ni(OH)(2) hollow spheres for highly sensitive enzyme-free glucose sensors.ELECTROCHIMICA ACTA,168,148-156.
MLA	Lu, Pan,et al."Nanosheets-assembled hierarchical microstructured Ni(OH)(2) hollow spheres for highly sensitive enzyme-free glucose sensors".ELECTROCHIMICA ACTA 168(2015):148-156.