Colorimetric Detection of Mercuric Ion (Hg2+) in Aqueous Media using DNA-Functionalized Gold Nanoparticles

Color is everything: Hg2+ in aqueous media is detected by the formation of thymidine–Hg2+–thymidine coordination complexes, which raises the melting temperature of the DNA‐hybridized gold nanoparticle probes and thus the temperature at which the probes disperse and effect a purple‐to‐red color chang...

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Veröffentlicht in:	Angewandte Chemie International Edition 2007-01, Vol.46 (22), p.4093-4096
Hauptverfasser:	Lee, Jae-Seung, Han, Min Su, Mirkin, Chad A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biosensing Techniques - methods Cations, Divalent colorimetric detection Colorimetry - methods DNA DNA - chemistry Gold - chemistry mercury Mercury - analysis Mercury - chemistry Models, Molecular nanoparticles Nanoparticles - chemistry sensors Temperature Water - chemistry
Online-Zugang:	Volltext
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