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首页> 外文期刊>RSC Advances >Analyzing the effects of protecting osmolytes on solute-water interactions by solvatochromic comparison method: I. Small organic compounds
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Analyzing the effects of protecting osmolytes on solute-water interactions by solvatochromic comparison method: I. Small organic compounds

机译：溶质色彩比较法分析保护渗透渗透渗水相互作用的影响：I。小型有机化合物

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摘要

Solvent properties of water (dipolarity/polarizability, hydrogen bond donor (HBD) acidity, and hydrogen bond acceptor (HBA) basicity) in aqueous solutions of osmolytes (sorbitol, sucrose, trehalose, and trimethylamine N-oxide (TMAO)) were studied at different osmolyte concentrations using a solvatochromic comparison method. The solvent properties of aqueous media in the coexisting phases of aqueous dextran-PEG-sodium/potassium phosphate buffer (0.01 M K/NaPB, pH 7.4) two-phase system (ATPS) containing 0.5 M osmolyte additive (sorbitol, sucrose, trehalose, TMAO) and osmolyte-free ATPS were characterized. Partitioning of 30 low molecular weight polar organic compounds was examined in aqueous dextran-PEG-0.01 M K/NaPB ATPS containing 0.5 M sorbitol. The solute-specific coefficients for the compounds examined were determined from the data obtained here and those reported previously. The results obtained demonstrate that the osmolytes examined affect the partition behavior of organic compounds in ATPS by influencing solvent properties of the media and not by direct association with the compounds.
机译：研究了水（二极管/极化性，氢键供体（HBD）酸度和氢粘合剂受体（HBA）碱度）的溶剂性质在渗透物（山梨糖醇，蔗糖，海藻糖和三甲胺N-氧化物（TMAO）的水溶液中不同的渗透浓度浓度，使用溶溶色的比较方法。含葡聚糖 - PEG - 钠/磷酸钾缓冲液（0.01mK / NaPB，pH 7.4）的两相系统（ATP）的共存相中含水介质的溶剂性能（0.01mK / Napb，pH7.4）（山梨糖醇，蔗糖，海藻糖，TMAO ）特征和无渗透性ATP。在含有0.5M山梨糖醇的水溶液 - PEG-0.01M k / NaPB ATP中检查30个低分子量极性有机化合物的分配。所检查化合物的溶质特异性系数是从此处获得的数据和先前报告的数据确定的。所获得的结果表明，通过影响培养基的溶剂性能而不是通过与化合物直接结合影响ATP中的渗透物中的渗透性影响。

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