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题名: Electrogenerated chemiluminescence sensors using Ru(bpy)(3)(2+) doped in silica nanoparticles
作者: Zhang LH ; Dong SJ
刊名: ANALYTICAL CHEMISTRY
出版日期: 2006
卷号: 78, 期号:14, 页码:5119-5123
关键词: NAFION-COATED ELECTRODES ; CHEMI-LUMINESCENCE ; COMPOSITE FILMS ; ELECTROCHEMILUMINESCENCE DETECTOR ; MULTILAYER FILMS ; POLYMER-FILMS ; GLUCOSE ; ELECTROCHEMISTRY ; ELECTROPHORESIS ; QUANTITATION
通讯作者: Dong SJ
中文摘要: A novel electrogenerated chemiluminescence (ECL) sensor based on Ru(bpy)(3)(2+)-doped silica (RuDS) nanoparticles conjugated with a biopolymer chitosan membrane was developed. These uniform RuDS nanoparticles ( similar to 40 nm) were prepared by a water-in-oil microemulsion method and were characterized by electrochemical and transmission electron microscopy technology. The Ru( bpy)(3)(2+)-doped interior maintained its high ECL efficiency, while the exterior nanosilica prevented the luminophor from leaching out into the aqueous solution due to the electrostatic interaction. This is the first attempt to branch out the application of RuDS nanoparticles into the field of ECL, and since a large amout of Ru(bpy)(3)(2+) was immobilized three-dimensionally on the electrode, the Ru( bpy)(3)(2+) ECL signal could be enhanced greatly, which finally resulted in the increased sensitivity. This sensor shows a detection limit of 2.8 nM for tripropylamine, which is 3 orders of magnitude lower than that observed at a Nafion-based ECL sensor. Furthermore, the present ECL sensor displays outstanding long-term stability.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000239017700047
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内容类型: 期刊论文
URI标识: http://ir.ciac.jl.cn/handle/322003/15873
Appears in Collections:长春应用化学研究所知识产出_期刊论文

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Zhang LH;Dong SJ.Electrogenerated chemiluminescence sensors using Ru(bpy)(3)(2+) doped in silica nanoparticles,ANALYTICAL CHEMISTRY,2006,78(14):5119-5123
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