Anion sensing porphyrin functionalized nanoparticles

被引：34

作者：

Cormode, David P. ^{[1
]}

Davis, Jason J. ^{[1
]}

Beer, Paul D. ^{[1
]}

机构：

[1] Univ Oxford, Inorgan Chem Lab, Dept Chem, Oxford, England

来源：

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2008年 / 18卷 / 01期

关键词：

anion sensing; porphyrin; gold nanoparticles; surface enhancement effect;

D O I：

10.1007/s10904-007-9193-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Disulfide and dithiocarbamate functionalized porphyrins have been synthesized and used as protecting ligands for gold nanoparticle formation either via ligand substitution reactions or by direct synthesis. These nanoparticles have been shown to recognize anions via changes in the absorbance spectrum of the surface adsorbed porphyrin moieties. Association constants, derived from quantitative titrations, indicate a remarkable surface enhancement effect where the surface bound porphyrins bind anions much more strongly than the free receptor in solution.

引用

页码：32 / 40

页数：9

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