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

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2010年 / 16卷 / 11期

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

页码：3285 / 3290

页数：6

共 33 条

[1] Magnetic and structural properties of isolated and assembled clusters [J].

Bansmann, J ;

Baker, SH ;

Binns, C ;

Blackman, JA ;

Bucher, JP ;

Dorantes-Dávila, J ;

Dupuis, V ;

Favre, L ;

Kechrakos, D ;

Kleibert, A ;

Meiwes-Broer, KH ;

Pastor, GM ;

Perez, A ;

Toulemonde, O ;

Trohidou, KN ;

Tuaillon, J ;

Xie, Y .

SURFACE SCIENCE REPORTS, 2005, 56 (6-7) :189-275

[2] Cluster-Assembled Materials [J].

Claridge, Shelley A. ;

Castleman, A. W., Jr. ;

Khanna, Shiv N. ;

Murray, Christopher B. ;

Sen, Ayusman ;

Weiss, Paul S. .

ACS NANO, 2009, 3 (02) :244-255

[3] THE PHYSICS OF SIMPLE METAL-CLUSTERS - EXPERIMENTAL ASPECTS AND SIMPLE-MODELS [J].

DEHEER, WA .

REVIEWS OF MODERN PHYSICS, 1993, 65 (03) :611-676

[4] Reduction of Ag+ on polyacrylate chains in aqueous solution [J].

Ershov, BG ;

Henglein, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (52) :10663-10666

[5] Synthesis and optical properties of silver nanoparticles and arrays [J].

Evanoff, DD ;

Chumanov, G .

CHEMPHYSCHEM, 2005, 6 (07) :1221-1231

[6] ELECTRON-SPIN RESONANCE STUDY OF DIMERIC, TRIMERIC, AND TETRAMERIC PARAMAGNETIC SILVER ATOM CLUSTERS [J].

FORBES, CE ;

SYMONS, MCR .

MOLECULAR PHYSICS, 1974, 27 (02) :467-471

[7] THE NATURE OF THE CHARGED SILVER CLUSTERS IN DEHYDRATED ZEOLITES OF TYPE-A [J].

GELLENS, LR ;

MORTIER, WJ ;

SCHOONHEYDT, RA ;

UYTTERHOEVEN, JB .

JOURNAL OF PHYSICAL CHEMISTRY, 1981, 85 (19) :2783-2788

[8] A nanometre-scale electronic switch consisting of a metal cluster and redox-addressable groups [J].

Gittins, DI ;

Bethell, D ;

Schiffrin, DJ ;

Nichols, RJ .

NATURE, 2000, 408 (6808) :67-69

[9] REDUCTION OF AG+ IN AQUEOUS POLYANION SOLUTION - SOME PROPERTIES AND REACTIONS OF LONG-LIVED OLIGOMERIC SILVER CLUSTERS AND METALLIC SILVER PARTICLES [J].

HENGLEIN, A ;

LINNERT, T ;

MULVANEY, P .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1990, 94 (12) :1449-1457

[10] NON-METALLIC SILVER CLUSTERS IN AQUEOUS-SOLUTION - STABILIZATION AND CHEMICAL-REACTIONS [J].

HENGLEIN, A .

CHEMICAL PHYSICS LETTERS, 1989, 154 (05) :473-476

← 1 2 3 4 →