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PECULIARITIES OF WATER FREEZING IN CRYOPROTECTIVE MEDIUM IMPLEMENTED IN A MATRIX OF HYDROPHOBIC SILICA BULL SPERM

机译:在疏水性二氧化硅牛精子的基质中冻结冷冻保护培养基中的水分

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摘要

The study of the process of melting water in lactose-glycerol-yolk kriomedium containing gametes bull, incorporated in the hydrophobic silica powder, which are adsorbed on the surface of fixed amounts of nonpolar hydrocarbon – n-decane was the aim of the work. The possibility of water polyassociates structuring with a solid surface of interfacial water and solubility of trifluoroethanoic acid in it have been studied. Thereat survival of the germ cell after contact with the surface was not analyzed.State of water in initial cryoprotective glycerol-lactose-yolk medium and hydrophobic nanosilica TS-100 containing n-decane additive adsorbed on its surface incorporated in a matrix was studied using low-temperature 1H-NMR spectroscopy method. It is shown that the solid matrix induces formation of 6–7 water molecules per each dean molecule at the interface, which do not take part in formation of hydrogen bonds, and a sharp radius decrease (from 100 to 20 nm) of ice crystals formed in cell suspension at its freezing. The results could give rise to safety improving of their cells at their cryopreservation and low temperature storage conditions by incorporating into a powder composite environment.
机译:在含乳糖甘油蛋黄kriomedium配子公牛融水的过程的研究,在疏水性二氧化硅粉末并入,其被吸附固定量的非极性烃的表面上 - 正癸烷是工作的目的。研究了用固体表面的水多分布的可能性,并研究了其中的界面水的固体表面和三氟乙酸的溶解度。没有分析与表面接触后生殖细胞的存活。采用低温1H-NMR光谱法在初始冷冻保护甘油 - 乳糖的蛋黄介质和水状态的疏水性纳米二氧化硅TS-100包含以矩阵方式并入其表面上的正癸烷添加剂吸附的进行了研究。结果表明,固体基质在界面处诱导每个Dean分子的6-7个水分子,其不参与形成氢键,并且形成尖锐的半径(从100至20nm)形成的冰晶在冷冻细胞悬浮液中。结果可以通过掺入粉末复合环境来产生在冷冻保存和低温储存条件下对其细胞的安全改善。

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  • 作者

    V. V. Turov;

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  • 年度 2014
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  • 原文格式 PDF
  • 正文语种 eng;rus;ukr
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