Ordered adsorption of organic molecules on inorganic nanoparticles
DOI:
https://doi.org/10.15407/visn2015.06.034Keywords:
nanoparticles, dye, adsorption, hybrid organic-inorganic complexesAbstract
The modern state and prospects of creation of the novel “nanocarriers” medicine are shown in the article. The results of the authors’ own research on the use of inorganic orthovanadate nanocrystals ReVO4:Eu3+ (Re = Y, Gd, La) with different form-factors as nanoscale carrier of active organic compound are presented. Interaction between nanoparticles ReVO4:Eu3+ and some cationic polymethine dyes has been studied by spectrophotometric method. It was shown that in water solutions there is sorption of dye molecule on the surface of nanoparticles. Depending on the structure of molecule and its tendency to aggregating, increase of local concentration of dyes in a near-surface layer of nanoparticle can reduce to ordered aggregating of dye molecules and formation of complicated complexes «inorganic nanoparticle — dye aggregates». Inorganic nanoparticles play role of unique «templates» for formation of dye aggregates, and the degree of ordering of molecules in an aggregate can be managed by nanoparticles’ form-factor.
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