Особливості гідратації композитного матеріалу, створеного на основі нанодисперсного кремнезему та гіалуронової кислоти
Hydration of various composites of A-300 and hyaluronic acid has been studied using low-temperature 1H NMR spectroscopy. It was found that all the water adsorbed on composite in air is in strongly associated state. Chloroform media has a small effect on the spectral and thermodynamic characteristics...
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| Date: | 2012 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | Russian |
| Published: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2012
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| Online Access: | https://www.cpts.com.ua/index.php/cpts/article/view/169 |
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| Journal Title: | Chemistry, Physics and Technology of Surface |
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Chemistry, Physics and Technology of Surface| Summary: | Hydration of various composites of A-300 and hyaluronic acid has been studied using low-temperature 1H NMR spectroscopy. It was found that all the water adsorbed on composite in air is in strongly associated state. Chloroform media has a small effect on the spectral and thermodynamic characteristics of adsorbed water while a large part of water bound to composite in acetonitrile is in weakly associated state and the chemical shift is reduced to 3 ppm. Signals of SAW and WAW are observed separately in mixed solvents CD3CN?CDCl3. Aqueous solution of hydrochloric acid or hydrogen peroxide interacting with silica can be decomposed into the system of clusters containing various amounts of HCl or H2O2. It has been shown that clusters of strongly associated water weakly dissolve acetonitrile or acids. |
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