Результаты исследований: Научные публикации в периодических изданиях › статья
Fluorescent Silver Nanoclusters in Condensed DNA. / Volkov, I.L.; Ramazanov, R.R.; Ubyivovk, E.V.; Rolich, V.I.; Kononov, A.I.; Kasyanenko, N.A.
в: Chemphyschem : a European journal of chemical physics and physical chemistry, 2013, стр. 3543-3550.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Fluorescent Silver Nanoclusters in Condensed DNA
AU - Volkov, I.L.
AU - Ramazanov, R.R.
AU - Ubyivovk, E.V.
AU - Rolich, V.I.
AU - Kononov, A.I.
AU - Kasyanenko, N.A.
PY - 2013
Y1 - 2013
N2 - We study formation and fluorescent properties of silver nanoclusters encapsulated in condensed DNA nanoparticles. Fluorescent globular DNA nanoparticles were formed using dsDNA-clusters complex and polyallylamine as condensing agent. Fluorescence emission spectrum of single DNA nanoparticles was obtained using tip enhanced fluorescence microscopy. Fluorescent clusters in condensed DNA nanoparticles appear to be more protected against destructive damage in solution compared with the clusters synthesized on linear polymer chain. Fluorescent clusters on both dsDNA and ssDNA exhibit the same emission bands at 590 nm and 680 nm and formation efficiency suggesting likely the same binding sites. Using the density functional theory, we show that the clusters may bind to the Watson−Crick guanine−cytosine base pairs and to single DNA bases with about the same affinity.
AB - We study formation and fluorescent properties of silver nanoclusters encapsulated in condensed DNA nanoparticles. Fluorescent globular DNA nanoparticles were formed using dsDNA-clusters complex and polyallylamine as condensing agent. Fluorescence emission spectrum of single DNA nanoparticles was obtained using tip enhanced fluorescence microscopy. Fluorescent clusters in condensed DNA nanoparticles appear to be more protected against destructive damage in solution compared with the clusters synthesized on linear polymer chain. Fluorescent clusters on both dsDNA and ssDNA exhibit the same emission bands at 590 nm and 680 nm and formation efficiency suggesting likely the same binding sites. Using the density functional theory, we show that the clusters may bind to the Watson−Crick guanine−cytosine base pairs and to single DNA bases with about the same affinity.
KW - DNA
KW - fluorescence
KW - microscopy
KW - nanoparticles
KW - silver
U2 - 10.1002/cphc.201300673
DO - 10.1002/cphc.201300673
M3 - Article
SP - 3543
EP - 3550
JO - Chemphyschem : a European journal of chemical physics and physical chemistry
JF - Chemphyschem : a European journal of chemical physics and physical chemistry
SN - 1439-4235
ER -
ID: 7376945