A solid-state electrochemical sensing platform based on a supramolecular hydrogel

doi:10.1016/j.snb.2018.02.029

ISL OpenIR > 青海盐湖研究所知识仓储

	A solid-state electrochemical sensing platform based on a supramolecular hydrogel
	Fu, Li; Wang, Aiwu; Lyu, Fucong; Lai, Guosong; Yu, Jinhong; Lin, Cheng-Te; Liu, Zhong; Yu, Aimin; Su, Weitao
	2018-06-01
发表期刊	SENSORS AND ACTUATORS B-CHEMICAL
ISSN	0925-4005
卷号	262 页码:326-333
关键词	Chitosan Hydrogel Electrochemical Sensing Platform Depolymerization Hydroxyl Radical
摘要	Supramolecular hydrogels formed from the biopolymer chitosan and zinc ions were used as disposable electrochemical sensing platforms for the determination of hydroxyl radicals and hydrogen peroxide for the first time. The enclosed chitosan hydrogel served as the electrolyte for the system. In the presence of hydroxyl radicals or hydrogen peroxide, the chitosan hydrogel underwent depolymerization, resulting in the release of zinc ions from complexes formed with the hydrogel. The changes in the current from the zinc ions were then monitored and used as a signal for determining the concentration of analyte. The proposed chitosan hydrogel sensing platform exhibited a comparable detection performance with wide linear ranges and low detection limits for the two analytes. The linear detection range could be further manipulated by varying the depolymerization time. Due to the low cost and simplicity of the preparation process, this enzyme- and DNA-free sensing platform possesses great potential for application in disposable point-of-care devices and in-field testing. Additionally, the application of the proposed chitosan hydrogel to antioxidant screening could be further explored. (C) 2018 Published by Elsevier B.V.
DOI	10.1016/j.snb.2018.02.029
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6443
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Fu, Li,Wang, Aiwu,Lyu, Fucong,et al. A solid-state electrochemical sensing platform based on a supramolecular hydrogel[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,262:326-333.
APA	Fu, Li.,Wang, Aiwu.,Lyu, Fucong.,Lai, Guosong.,Yu, Jinhong.,...&Su, Weitao.(2018).A solid-state electrochemical sensing platform based on a supramolecular hydrogel.SENSORS AND ACTUATORS B-CHEMICAL,262,326-333.
MLA	Fu, Li,et al."A solid-state electrochemical sensing platform based on a supramolecular hydrogel".SENSORS AND ACTUATORS B-CHEMICAL 262(2018):326-333.

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