Ag K-Edge EXAFS Analysis of DNA-Templated Fluorescent Silver Nanoclusters: Insight into the Structural Origins of Emission Tuning by DNA Sequence Variations

Ag K-Edge EXAFS Analysis of DNA-Templated Fluorescent Silver Nanoclusters: Insight into the Structural Origins of Emission Tuning by DNA Sequence Variations

DNA-templated silver nanoclusters are promising biological fluorescence probes due to their useful fluorescence properties, including tunability of emission wavelength through DNA template sequence variations. Ag K-edge EXAFS analysis of DNA-templated silver nanoclusters has been used to obtain insi...

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Veröffentlicht in:Journal of the American Chemical Society 2011-08, Vol.133 (31), p.11837-11839
Hauptverfasser: Neidig, Michael L, Sharma, Jaswinder, Yeh, Hsin-Chih, Martinez, Jennifer S, Conradson, Steven D, Shreve, Andrew P
Format: Artikel
Sprache:eng
Schlagworte:
Base Sequence
DNA - chemistry
Fluorescence
Metal Nanoparticles - chemistry
Molecular Structure
Silver - chemistry
X-Ray Absorption Spectroscopy
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Zusammenfassung:DNA-templated silver nanoclusters are promising biological fluorescence probes due to their useful fluorescence properties, including tunability of emission wavelength through DNA template sequence variations. Ag K-edge EXAFS analysis of DNA-templated silver nanoclusters has been used to obtain insight into silver nanocluster bonding, size, and structural correlations to fluorescence. The results indicate the presence of small silver nanoclusters (
ISSN:0002-7863
1520-5126
DOI:10.1021/ja202797w