Single-wall carbon nanotube-based voltammetric sensor and biosensor

	Single-wall carbon nanotube-based voltammetric sensor and biosensor
	Xu Z ; Chen X ; Qu XH ; Jia JB ; Dong SJ
刊名	biosensors & bioelectronics
	2004
卷号	20 期号:3 页码:579-584
关键词	ELECTROCHEMICAL SENSORS UREA DETERMINATION PH SENSOR ELECTRODE TRANSDUCER CONSTRUCTION OXIDATION
ISSN号	0956-5663
通讯作者	dong sj
中文摘要	the ph-sensitive property of the single-wall carbon nanotube modified electrode based oil the electroactive group on the single-wall carbon nanotube was explored by differential pulse voltammetry technique. in ph range 1-13 investigated in britton-robinson (b-r) buffer, the anodic peak shifted negatively along with the increase of ph exhibiting a reversible nernstian response. experiments were carried out to investigate the response of the single-wall carbon nanotube (swnt) modified electrode to analytes associated with ph change. the response behavior of the modified electrode to ammonia was studied as an example. the potential response could reach equilibrium within 5 min. the modified electrode had good operational stability. voltammetric urease and acetylcholinesterase biosensors were constructed by immobilizing the enzymes with sol-get hybrid material. the maximum potential shift could reach 0.130 and 0.220v for urea and acetylthiocholine, respectively. the methods for preparing sensor and biosensor were simple and reproducible and the range of analytes could be extended to substrates of other hydrolyases and esterases.
收录类别	SCI
语种	英语
WOS记录号	WOS:000225009000025
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/14985]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Xu Z,Chen X,Qu XH,et al. Single-wall carbon nanotube-based voltammetric sensor and biosensor[J]. biosensors & bioelectronics,2004,20(3):579-584.
APA	Xu Z,Chen X,Qu XH,Jia JB,&Dong SJ.(2004).Single-wall carbon nanotube-based voltammetric sensor and biosensor.biosensors & bioelectronics,20(3),579-584.
MLA	Xu Z,et al."Single-wall carbon nanotube-based voltammetric sensor and biosensor".biosensors & bioelectronics 20.3(2004):579-584.