Особливості гідратації гіалуронової кислоти за даними 1Н ЯМР–спектроскопії
The hydratation of hyaluronic acid in air, frozen aqueous solutions, and weakly polar solvent CDCl3 has been studied by low-temperature 1H NMR spectroscopy. Thermodynamic parameters of the strongly and weakly bounded water as well as interfacial energy of polymer-water system have been specified. It...
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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/157 |
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| Journal Title: | Chemistry, Physics and Technology of Surface |
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Chemistry, Physics and Technology of Surface| Summary: | The hydratation of hyaluronic acid in air, frozen aqueous solutions, and weakly polar solvent CDCl3 has been studied by low-temperature 1H NMR spectroscopy. Thermodynamic parameters of the strongly and weakly bounded water as well as interfacial energy of polymer-water system have been specified. It has been found that environment of CDCl3 produces a differentiating effect on bounded water in case of low hydration. Four signals of strongly associated water and one signal of weakly associated water have been detected separately in the spectra. A joint water system is formed with increasing hydration. The maximum value of interfacial energy of polymer-water in the aqueous solution is observed at 2% hyaluronic acid what corresponds to the beginning of gel structure formation. |
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