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Enhanced optical sensing of anions with amide-functionalized gold nanoparticles
Shigeru Watanabe1, Miyoko Sonobe, Mari Arai
1Department of Material Science, Faculty of Science, Kochi University, Kochi 780-8520, Japan. watanabe@cc.kochi-u.ac.jp
Chemical Communications (Cambridge, England)
|December 14, 2002
Abstract:
A gold nanoparticle surface-modified with amide ligands shows enhanced optical sensing of anions: the detection limit is increased by about three orders of magnitude higher than that originally expected from the anion binding ability of neutral amide ligands.