Constructing a TiO2/PDA core/shell nanorod array electrode as a highly sensitive and stable photoelectrochemical glucose biosensor

doi:10.1039/c9ra10445c

CORC > 金属研究所 > 中国科学院金属研究所

	Constructing a TiO2/PDA core/shell nanorod array electrode as a highly sensitive and stable photoelectrochemical glucose biosensor
	Xu, Wei 1; Yang, Wenke 1; Guo, Hongkai 1; Ge, Lianyuan 1; Tu, Jinchun 1; Zhen, Chao 2
刊名	RSC ADVANCES
	2020-03-10
卷号	10 期号:17 页码:10017-10022
DOI	10.1039/c9ra10445c
通讯作者	Tu, Jinchun(tujinchun@hainu.edu.cn) ; Zhen, Chao(czhen@imr.ac.cn)
英文摘要	Developing stable PEC glucose biosensors with high sensitivity and low detection limit is highly desirable in the biosensor field. Herein, a highly stable and sensitive enzymatic glucose photoelectrochemical biosensor is rationally designed and fabricated by constructing TiO2/PDA core/shell nanorod arrays. The TiO2 nanorod as the core has the advantages of increasing charge transportation towards interfaces and enhancing the absorption of incident sunlight due to its single-crystal nature and one dimensional array structure. The PDA shell not only induces a rapid charge transfer across the interfaces but also stabilizes the biosensor performance by avoiding the decomposition of enzymes induced by the strong oxidizing holes from the TiO2 core. A remarkable performance with an ultrahigh sensitivity of 57.72 mu A mM(-1) cm(-2), a linear range of 0.2-1.0 mM, a glucose detection limit of 0.0285 mM (S/N = 3) and a high sensitivity of 8.75 mu A mM(-1) cm(-2) in a dynamic range of 1.0-6.0 mM were obtained for the glucose detection. This study might provide a strategy for constructing inorganic/organic core/shell structures with a satisfactory PEC performance.
资助项目	Key Research and Development Project of the Hainan Province[ZDYF2018106] ; National Natural Science Foundation of China[51762012]
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000520511800029
资助机构	Key Research and Development Project of the Hainan Province ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137956]
专题	金属研究所_中国科学院金属研究所
通讯作者	Tu, Jinchun; Zhen, Chao
作者单位	1.Hainan Univ, Coll Mat & Chem Engn, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua RD, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xu, Wei,Yang, Wenke,Guo, Hongkai,et al. Constructing a TiO2/PDA core/shell nanorod array electrode as a highly sensitive and stable photoelectrochemical glucose biosensor[J]. RSC ADVANCES,2020,10(17):10017-10022.
APA	Xu, Wei,Yang, Wenke,Guo, Hongkai,Ge, Lianyuan,Tu, Jinchun,&Zhen, Chao.(2020).Constructing a TiO2/PDA core/shell nanorod array electrode as a highly sensitive and stable photoelectrochemical glucose biosensor.RSC ADVANCES,10(17),10017-10022.
MLA	Xu, Wei,et al."Constructing a TiO2/PDA core/shell nanorod array electrode as a highly sensitive and stable photoelectrochemical glucose biosensor".RSC ADVANCES 10.17(2020):10017-10022.