Sensing strategy for lithium ion based on gold nanoparticles

被引：239

作者：

Obare, SO ^{[1
]}

Hollowell, RE ^{[1
]}

Murphy, CJ ^{[1
]}

机构：

[1] Univ S Carolina, Grad Sch Res Ctr, Dept Chem & Biochem, Columbia, SC 29208 USA

来源：

LANGMUIR | 2002年 / 18卷 / 26期

关键词：

D O I：

10.1021/la0260335

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The detection of Li+ is currently in demand for both biomedical and industrial applications. We here report the functionalization of 4 nm Au particles with a 1,10-phenanthroline ligand that binds selectively to Li+. The ligand binds to Li+ by forming a 2:1 ligand-metal complex, causing Au nanoparticles to aggregate. Au nanoparticle aggregation causes a shift in the extinction spectrum with a concomitant color change, providing a useful optical method of detecting Li+ in aqueous solution.

引用

页码：10407 / 10410

页数：4

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