A Highly Charged Ag64+ Core in a DNA-Encapsulated Silver Nanocluster

被引:61
作者
Koszinowski, Konrad [1 ]
Ballweg, Korbinian [1 ]
机构
[1] Univ Munich, Dept Chem & Biochem, D-81377 Munich, Germany
关键词
cluster compounds; DNA; mass spectrometry; nanoclusters; silver; UV/Vis spectroscopy; AQUEOUS-SOLUTION; METAL-CLUSTERS; MASS-SPECTROMETRY; AG NANOCLUSTERS; REDUCTION; POLYANION; TEMPLATE;
D O I
10.1002/chem.200902743
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Highly charged; Electrospray-ionization mass spectrometry shows that single-stranded oligonucleotide dC12encapsulated silver nanoclusters contain Ag64+ cores at basic pH values (see section of spectrum). The high positive charge of the cluster cores is presumably essential for preventing the multiply deprotonated dC12 ligand from unfolding. (Figure Presented) © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3285 / 3290
页数:6
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