期刊
CHEMICAL COMMUNICATIONS
卷 48, 期 46, 页码 5748-5750出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cc17675k
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资金
- [NSF-CHE-0848375]
- Direct For Mathematical & Physical Scien [0848375] Funding Source: National Science Foundation
- Division Of Chemistry [0848375] Funding Source: National Science Foundation
We use tandem HPLC-mass spectrometry with in-line spectroscopy to identify silver atom numbers, N-Ag, of 10 to 21 in visible- to infrared-emitting Ag:DNA complexes stabilized by oligonucleotide monomers and dimers. Qualitatively different absorbance spectra from bare, same-N-Ag silver clusters point to silver-base interactions as the origin for the color of Ag:DNAs.
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