A DNA-templated fluorescent silver nanocluster with enhanced stability

We report the discovery of a DNA sequence that templates a highly stable fluorescent silver nanocluster. In contrast to other DNA templated silver nanoclusters that have a relatively short shelf-life, the fluorescent species templated in this new DNA sequence retains significant fluorescence for at...

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Veröffentlicht in:	Nanoscale 2012-07, Vol.4 (14), p.4107
Hauptverfasser:	Sharma, Jaswinder, Rocha, Reginaldo C, Phipps, M Lisa, Yeh, Hsin-Chih, Balatsky, Kirill A, Vu, Dung M, Shreve, Andrew P, Werner, James H, Martinez, Jennifer S
Format:	Artikel
Sprache:	eng
Schlagworte:	Circular Dichroism DNA - chemistry Metal Nanoparticles - chemistry Oxidation-Reduction Silver - chemistry Time Factors
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Beschreibung
Zusammenfassung:	We report the discovery of a DNA sequence that templates a highly stable fluorescent silver nanocluster. In contrast to other DNA templated silver nanoclusters that have a relatively short shelf-life, the fluorescent species templated in this new DNA sequence retains significant fluorescence for at least a year. Moreover, this new silver nanocluster possesses low cellular toxicity and enhanced thermal, oxidative, and chemical stability.
ISSN:	2040-3364 2040-3372
DOI:	10.1039/c2nr30662j