Results 231 to 240 of about 382,450 (269)

Fluorescent Silver Nanoclusters in Condensed DNA

ChemPhysChem, 2013
AbstractWe study the formation and fluorescent properties of silver nanoclusters encapsulated in condensed DNA nanoparticles. Fluorescent globular DNA nanoparticles are formed using a dsDNA–cluster complex and polyallylamine as condensing agents. The fluorescence emission spectrum of single DNA nanoparticles is obtained using tip‐enhanced fluorescence ...
Ivan L, Volkov, Ruslan R, Ramazanov, Evgeniy V, Ubyivovk, Valerij I, Rolich, Alexei I, Kononov, Nina A, Kasyanenko   +5 more
openaire   +2 more sources

A complementary palette of fluorescent silver nanoclusters

Chemical Communications, 2010
We report the synthesis and photophysical properties of silver-nanoclusters templated on DNA, with fluorescence excitation and emission at distinct wavelengths that are tuned to common laser excitation wavelengths.
Jaswinder, Sharma, Hsin-Chih, Yeh, Hyojong, Yoo, James H, Werner, Jennifer S, Martinez   +4 more
openaire   +2 more sources

Ferrocenyl Functionalized Silver-Chalcogenide Nanoclusters

Inorganic Chemistry, 2011
New (chalcogenoethyl)ferrocenylcarboxalate functionalized silver chalcogenide nanoclusters were synthesized using a combination of silylated chalcogen reagents at low temperatures. The addition of E(SiMe(3))(2) to reaction mixtures of FcC{O}OCH(2)CH(2)ESiMe(3) (E = S, Se) and (Ph(3)P)(2)·AgOAc affords nanoclusters with approximate molecular formulas ...
MacDonald, D. G., Kübel, C., Corrigan, J. F.   +2 more
openaire   +3 more sources

A Sodalite‐Type Silver Orthophosphate Cluster in a Globular Silver Nanocluster

Angewandte Chemie International Edition, 2020
AbstractThe synthesis and structure of a giant 102‐silver‐atom nanocluster (NC) 1 is presented. X‐ray structural analysis reveals that 1 features a multi‐shelled metallic core of Ag6@Ag24@Ag60@Ag12. An octahedral Ag6 core is encaged by a truncated octahedral Ag24 shell.
Chenglong Deng, Cunfa Sun, Zhi Wang, Yunwen Tao, Yilin Chen, Jinqing Lin, Genggeng Luo, Bizhou Lin, Di Sun, Lansun Zheng   +9 more
openaire   +2 more sources

Color Tunability and Electrochemiluminescence of Silver Nanoclusters

Angewandte Chemie International Edition, 2009
AbstractColorful clusters: Silver nanoclusters consisting of only a few atoms exhibit large chemical‐environment‐responsive shifts of their optical absorption and emission bands, that is, large solvatochromism (see picture). The photophysical characteristics and electrochemiluminescence of the Ag clusters give them remarkable advantages over larger ...
Isabel, Díez, Matti, Pusa, Sakari, Kulmala, Hua, Jiang, Andreas, Walther, Anja S, Goldmann, Axel H E, Müller, Olli, Ikkala, Robin H A, Ras   +8 more
openaire   +3 more sources

A Polyoxochromate Templated 56-Nuclei Silver Nanocluster

Inorganic Chemistry, 2020
Most of polyoxometallates (POMs) templated silver nanoclusters recorded so far are polyoxomolybdates and polyoxotungstates; however, as congeneric polyoxochromates, they are rarely observed in silver nanoclusters. Herein, a high-nuclearity polyoxochromate, (CrIII4CrVI8O36)12-, is uncovered in a novel silver nanocluster (SD/Ag56a) as an anion template ...
Zhi Wang, Lu-Ming Zheng, Marko Jagodič, Zvonko Jagličić, Hai-Feng Su, Jian-Xing Zhuang, Xing-Po Wang, Chen-Ho Tung, Di Sun   +8 more
openaire   +2 more sources

Thermodynamic properties of silver nanoclusters

Inorganic Materials, 2012
Icosahedral models of magic number silver clusters have been constructed using molecular dynamics simulations with the Doyama-Kogure potential. We have calculated the energy, heat capacity, entropy, Gibbs energy change, and excess surface energy as functions of cluster size and temperature. The vibrational contributions to the heat capacity and entropy
A. N. Sirenko, D. K. Belashchenko
openaire   +1 more source

A nanocluster beacon based on the template transformation of DNA-templated silver nanoclusters

Chemical Communications, 2016
We developed a novel light-up nanocluster beacon for sensitive and selective DNA detection based on the template transformation by shuttling dark Ag nanoclusters to a bright scaffold through hybridization.
Ye, Teng, Xiaofang, Jia, Shan, Zhang, Jinbo, Zhu, Erkang, Wang   +4 more
openaire   +2 more sources

Photoactivated Fluorescence from Individual Silver Nanoclusters

Science, 2001
Fluorescence microscopy of nanoscale silver oxide (Ag 2 O) reveals strong photoactivated emission for excitation wavelengths shorter than 520 nanometers. Although blinking and characteristic emission patterns demonstrate single-nanoparticle observation, large-scale dynamic color changes were also observed, even from
L A, Peyser, A E, Vinson, A P, Bartko, R M, Dickson   +3 more
openaire   +2 more sources

Fluorescent silver nanoclusters stabilized by DNA scaffolds

Chemical Communications, 2014
Fluorescent silver nanoclusters, in particular DNA stabilized (templated) silver nanoclusters, have attracted much attention because of their molecule-like optical properties, strong fluorescence and good biocompatibility. In this feature article, we summarize the DNA stabilized silver nanoclusters from the viewpoints of synthesis, optical properties ...
Zhiqin, Yuan, Ying-Chieh, Chen, Hung-Wen, Li, Huan-Tsung, Chang   +3 more
openaire   +2 more sources