DNA-promoted electrochemical assembly of Ru(bpy)(2)IP (3+/2+) at an ITO electrode

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	DNA-promoted electrochemical assembly of Ru(bpy)(2)IP (3+/2+) at an ITO electrode
	Li, H. ; Xu, Z. H. ; Pang, D. W. ; Wu, J. Z. ; Ji, L. N. ; Lin, Z. H. ; Lin ZH(林仲华)
刊名	http://dx.doi.org/10.1016/j.electacta.2005.06.031
	2006-02-01
关键词	NUCLEIC-ACIDS METAL-COMPLEXES TIN OXIDE ELECTROGENERATED CHEMILUMINESCENCE OXIDATION BINDING GUANINE OXORUTHENIUM(IV) COBALT(III) DERIVATIVES
英文摘要	A controllable assembly technique of [Ru(bpy)(2)IP]3(+/2+) (where bpy = 2,2'-bipyridine and IP=imidazo[4,5,f][1,10]phenanthroline) promoted by calf thymus DNA at an ITO electrode is proposed. The stable assembled layer containing [Ru(bpy)(2)IP](3+/2+) ad double stranded DNA is obtained on the ITO electrode using repetitive voltammetric sweeping, confirmed by ex situ voltammetry, X-ray photoelectron spectroscopy (XPS) and the inverted fluorescence microscopy. There exist two pairs of diffusion-controlled waves and two pairs of prewaves for [Ru(bpy)(2)IP](2+) in the voltammetric sweeping process. The half-wave potentials of the prewaves are far more negative than those of the diffusion-controlled waves. These experimental results suggest that double stranded DNA is enable to accelerate and increase the controllable assembly of Ru(bpy)(2)IP](3+/2+) by using the ITO surface. The fluorescence microscopy imaging reveals that [Ru(bpy)(2)IP](3+/2+) has the ability to bind with double strand DNA. The fluorescence intensity of [Ru(bpy)(2)IP](3+/2+) with DNA is stronger than that without DNA. (c) 2005 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62442]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Li, H.,Xu, Z. H.,Pang, D. W.,et al. DNA-promoted electrochemical assembly of Ru(bpy)(2)IP (3+/2+) at an ITO electrode[J]. http://dx.doi.org/10.1016/j.electacta.2005.06.031,2006.
APA	Li, H..,Xu, Z. H..,Pang, D. W..,Wu, J. Z..,Ji, L. N..,...&林仲华.(2006).DNA-promoted electrochemical assembly of Ru(bpy)(2)IP (3+/2+) at an ITO electrode.http://dx.doi.org/10.1016/j.electacta.2005.06.031.
MLA	Li, H.,et al."DNA-promoted electrochemical assembly of Ru(bpy)(2)IP (3+/2+) at an ITO electrode".http://dx.doi.org/10.1016/j.electacta.2005.06.031 (2006).