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Studying the nature of interaction between nanohydroxyapatite and albumins by radionuclide-microscopy diagnostics

Multistage character of adsorption isotherms of human and bovine serum albumins on hydroxyapatite nanoparticles from aqueous solution have been developed by the radionuclide-microscopy method. Such a character of isotherms indicated the number of physicalchemical processes: formation of the peptide-nanohydroxyapatite complex and following by aggregation in liquid and solid phases. This hypothesis was confirmed by X-ray and dynamic light-scattering analysis, It was shown, that when hydroxyapatite is formed in albumin solution the peptide-nanohydroxyapatite complex formation is followed by morphology and structure exchange of hydroxyapatite nanocrystals.

Authors:   A. V. Severin, G. A. Badun, M. G. Chernysheva
Journal:   Moscow University Chemistry Bulletin
Year:   2012
DOI:   10.3103/S0027131411060083
Publication date:   07-02-2012

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