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Nmr spectroscopy of the hydrated layer of composite particles based on nanosized alo and vitreous humor

Journal of Applied Spectroscopy, ISSN: 0021-9037, Vol: 80, Issue: 5, Page: 663-669
2013
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Article Description

The hydrated layer of composite particles prepared using AlO and cattle vitreous humor was investigated using NMR spectroscopy. It was found that water bound to AlO nanoparticles was present in the form of clusters with different degrees of association and energies of interaction with the surface. Water bound to the surface of the AlO/ vitreous humor composite became more uniform upon immobilization of vitreous humor components on the surface of the AlO. With this, the clusters of adsorbed water had characteristics that were close to those found in air and weakly polar CHCl media. Addition of polar CHCN led to the formation of very small water clusters. PMR spectra of the surface of the AlO/vitreous humor composite in the presence of trifluoroacetic acid differentiated four types of hydrated structures that differed in the degree of water association.

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