ВлиÑние диÑперÑного кремнезема на ÑвÑзанную воду в замороженных клеточных ÑуÑпензиÑÑ…
Using the 1H NMR method under conditions of liquid phase freezing-out the effect of disperse silica on hydration rate of model cell suspensions in varying the concentration of cell mass within the range of 0-25% mass and that of SiO2 within the range of 0‑5% (w/w) have been studied. Disperse sil...
Збережено в:
| Дата: | 2002 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Publishing House ‘Akademperiodyka’ of the National Academy of Sciences of Ukraine; Institute for Problems of Cryobiology and Cryomedicine
2002
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| Онлайн доступ: | https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/953 |
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| Назва журналу: | Problems of Cryobiology and Cryomedicine |
Репозитарії
Problems of Cryobiology and Cryomedicine| Резюме: | Using the 1H NMR method under conditions of liquid phase freezing-out the effect of disperse silica on hydration rate of model cell suspensions in varying the concentration of cell mass within the range of 0-25% mass and that of SiO2 within the range of 0‑5% (w/w) have been studied. Disperse silica was found to cause a strong decrease in bound water concentration in the system. The maximum reduction in inter-phase energy of cell/water (γS) was equal to 130 J/g. In concentrated cell suspension the cells and particles of silica can form complex colloid systems with the value of γS in two times lower than that in the binary system. |
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