Compressibility of Lipid Mixtures Studied by Calorimetry and Ultrasonic Velocity Measurements

W. Schrader; H. Ebel; P. Grabitz; E. Hanke; T. Heimburg; M. Hoeckel; M. Kahle; F. Wente; U. Kaatze

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Compressibility of Lipid Mixtures Studied by Calorimetry and Ultrasonic Velocity Measurements

机译：量热法和超声速度测量法研究脂质混合物的可压缩性

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Ultrasonic velocity and heat capacity temperature profiles of various lipid mixtures have been recorded with high accuracy. This included mixtures of phophatidylcholines with different chain length as well as phosphatidylcholine mixtures with diacyl glycerides. Following previous studies relating the heat capacity to the isothermal compressibility of lipids close to the chain melting transition, we found that the measured ultrasonic velocities are very similar to those calculated from the heat capacity. This implies that we are able to determine the compressibility changes from the excess heat capacity and the heat capacity changes from ultrasonic velocity measurements. The sound velocity and heat capacity traces are discussed with respect to the phase diagrams of the lipid mixtures.

机译：各种脂质混合物的超声速度和热容温度曲线已得到高精度记录。这包括具有不同链长的磷脂酰胆碱的混合物，以及磷脂酰胆碱与二酰基甘油酯的混合物。根据先前的研究，将热容量与接近链熔化转变的脂质的等温压缩性相关联，我们发现测得的超声速度与根据热容量计算出的速度非常相似。这意味着我们能够根据过剩的热容量确定可压缩性变化，并且能够根据超声速度测量确定热容量变化。关于脂质混合物的相图讨论了声速和热容曲线。

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《The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical》 |2002年第25期|共6页
作者
W. Schrader; H. Ebel; P. Grabitz; E. Hanke; T. Heimburg; M. Hoeckel; M. Kahle; F. Wente; U. Kaatze;
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中图分类物理化学（理论化学）、化学物理学;
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1. Compressibility of Lipid Mixtures Studied by Calorimetry and Ultrasonic Velocity Measurements [J] . W. Schrader, H. Ebel, P. Grabitz, The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2002,第25期

机译：量热法和超声速度测量法研究脂质混合物的可压缩性
2. Isentropic compressibilities of some copper(I), sodium(I) and tetraalkylammonium salts evaluated from ultrasonic velocity measurements in acetonitrile plus N,N-dimethylformamide mixtures at 298.15 K [J] . Gill DS., Anand H., Puri JK. Journal of Molecular Liquids . 2003,第1a3期

机译：在298.15 K在乙腈和N，N-二甲基甲酰胺混合物中通过超声速度测量评估了一些铜（I），钠（I）和四烷基铵盐的等熵可压缩性
3. Ultrasonic velocity and isentropic compressibilities of the ternary mixture benzene plus acetone plus chloroform and their corresponding binary mixtures at 298.15K [J] . Savaroglu G., Aral E. Journal of Molecular Liquids . 2003,第1期

机译：苯+丙酮+氯仿三元混合物及其对应的二元混合物在298.15K的超声速度和等熵压缩率
4. Concentration detection in water-glucose mixtures for medical applications using ultrasonic velocity measurements [C] . Schwerthoeffer U., Winter M., Weigel R., IEEE International Symposium on Medical Measurements and Applications . 2013

机译：使用超声速度测量来检测医疗应用中的水葡萄糖混合物中的浓度
5. Planar velocity measurements in compressible mixing layers. [D] . Urban, William David. 1999

机译：可压缩混合层中的平面速度测量。
6. The effect of increasing membrane curvature on the phase transition and mixing behavior of a dimyristoyl-sn-glycero-3-phosphatidylcholine/ distearoyl-sn-glycero-3-phosphatidylcholine lipid mixture as studied by Fourier transform infrared spectroscopy and differential scanning calorimetry. [O] . T Brumm, K Jørgensen, O G Mouritsen, 1996

机译：通过傅立叶变换红外光谱法和差示扫描量热法研究了膜曲率增加对二肉豆蔻酰基-sn-甘油-3-磷脂酰胆碱/二硬脂酰基-sn-甘油-3-磷脂酰胆碱脂质混合物的相变和混合行为的影响。
7. Compressibility of Lipid Mixtures Studied by Calorimetry and Ultrasonic Velocity Measurements [O] . W. Schrader, H. Ebel, P. Grabitz, 2002

机译：通过量热法和超声波速度测量研究脂质混合物的可压缩性
8. Compressibility of Colloids: I. Compressibility Studies of Aqueous Solutions of Amphiphilic Polymers and Their Adsorbed State on Polystyrne Latex Dispersions by Ultrasonic Velocity Measurements [R] . Barrett-Gueltepe, M. A., Gueltepe, M. E., Yeager, E. B. 1982

机译：胶体的可压缩性：I。两亲性聚合物水溶液的可压缩性研究及其在聚苯乙烯乳液分散体上的吸附状态的超声波速度测量

Compressibility of Lipid Mixtures Studied by Calorimetry and Ultrasonic Velocity Measurements

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