Yellin N, Levin I W
Biochim Biophys Acta. 1977 Aug 1;468(3):490-4. doi: 10.1016/0005-2736(77)90298-x.
The temperature dependence of the Raman spectral transitions assigned to the acyl chain C-C stretching modes of dipalmitoyl phosphatidylcholine was determined for the gel, phase transition and liquid crystalline states of the lipid multilayers. The van't Hoff enthalpy differences delta HVH between trans and gauche rotational isomers were obtained from the Raman spectral data for the temperature region characteristic of each bilayer state. An average size for the cooperative unit undergoing the chain melting process during the phase transition was estimated from the ratio of the appropriate van't Hoff enthalpy to an adjusted calorimetric enthalpy.
对于二棕榈酰磷脂酰胆碱酰基链C-C伸缩模式的拉曼光谱跃迁，测定了脂质多层膜的凝胶态、相变态和液晶态的温度依赖性。反式和顺式旋转异构体之间的范特霍夫焓差ΔHVH是从每个双层状态特征温度区域的拉曼光谱数据中获得的。根据适当的范特霍夫焓与调整后的量热焓之比，估算了相变过程中发生链熔化过程的协同单元的平均大小。
