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Yu. M. Yevdokimov

Gold nanoparticles and DNA liquid crystals

Abstract

This brief review covers the effect of small size gold nanoparticles on cholesteric liquid-crystalline dispersions formed by double-strandedhigh mol. mass DNA molecules. It is shown, that as well as in case of liquid crystals derivated by low mol. mass compounds, this activity results in: 1) nematization of a spatial structure of dispersion particles, and 2) incorporation of small size gold nanoparticles in “free” space between DNA molecules, forming quasinematic layers of dispersion particles. As a result of these processes the “integrated” structure (“rigid” spatial DNA structure) is formed, which possess unique properties.
Key words: gold nanoparticles structure and properties, DNA liquid-crystalline dispersions, interaction of gold nanoparticles with single- and double-stranded DNA, circular dichroism, atomic-force microscopy.
Moscow University Chemistry Bulletin.
2015, Vol. 56, No. 3, P. 147
   

Copyright (C) Chemistry Dept., Moscow State University, 2002
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