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Название: Toxicity of Carbon Based Nanomaterials against Escherichia coli Depends on Dispersion Efficacy of Their Water Suspensions
Авторы: Deryabin, D. G.
Aleshina, E. S.
Vasilchenko, A. S.
Efremova, L. V.
Klokova, O. S.
Дата публикации: 2013
Издатель: Nanotechnologies in Russia
Серия/номер: ;Vol. 8, Nos. 7–8, pp. 565–572.
Аннотация: The relationships between surface wettability, dispersion efficacy in water suspensions and biotoxicity of nine carbon_based nanomaterials (CBN) samples represented by nanotubes, nanofibres and fullerenes are established. It is shown that presence of polar groups on the surface of similar in structure CBNs increases their hydrophilicity, reduces the particles size in water suspensions, and manifests itself by growth of the toxicity level in the luminescent screening assay based on Escherichia coli with the cloned luxCDABEgenes Photobacterium leiognathi. The artificial increase in individual CBN dispersion efficacy by primary suspension in the aprotic solvent dimethyl sulfoxide with the following transfer into an aqueous environment, also has led to growth of the registered biological activity. At the same time, the dispersion efficacy of morphologically diverse CBN is not the main cause of distinctions in their biotoxicity.
URI: http://elib.osu.ru/handle/123456789/28
ISSN: 1995-0780
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