Ultrasonic attenuation measurements in phospholipid dispersions.
Ultrasonic attenuation measurements in phospholipid dispersions.
复制标题
磷脂分散体中的超声波衰减测量。
DOI：
10.1016/0005-2736(70)90135-5
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发表时间：
1970
期刊：
影响因子：
--
通讯作者：
P. B. Roberts
中科院分区：
文献类型：
--
作者：
G. Hammes;P. B. Roberts
超声波衰减测量已被用来表明，松弛过程发生在时间范围1· 10− 7 1· 10− 8秒内的磷脂酰丝氨酸的分散体，并在较小程度上，在磷脂酰胆碱分散体。通过改变磷脂浓度、pH、胆固醇和二价金属离子含量来修改超声衰减。数据的定量分析是不可能的，但松弛过程的最可能的机制是脂质体内构象变化和/或溶剂化平衡。
Ultrasonic attenuation measurements have been used to show that relaxation processes occur in the time range 1· 10− 7 1· 10− 8 sec in dispersions of phosphatidylserine and, to a lesser extent, in phosphatidylcholine dispersions. The ultrasonic attenuation is modified by changes in phospholipid concentration, pH, cholesterol and divalent metal ion content. A quantitative analysis of the data is not possible, but the most probable mechanisms for the relaxation processes are intraliposome conformational changes and/or solvation equilibria.