Tristram-Nagle S, Suter R M, Sun W J, Nagle J F
Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213.
Biochim Biophys Acta. 1994 Apr 20;1191(1):14-20. doi: 10.1016/0005-2736(94)90227-5.
Wide-angle and low-angle X-ray diffraction data were obtained during the time course of the gel to subgel phase transformation in fully hydrated DPPC. When the system was kept close to equilibrium by following a T-jump protocol, the X-ray data unequivocally demonstrate the coexistence of growing subgel and shrinking gel domains. When the system was supercooled and held further from equilibrium as in previous studies, the kinetic behavior was more complicated. These data prove that the basic mechanism for the gel to subgel phase transformation is one of nucleation of subgel domains followed by growth of the domains.
在完全水合的二棕榈酰磷脂酰胆碱（DPPC）从凝胶相向亚凝胶相转变的过程中，获取了广角和低角X射线衍射数据。当通过遵循温度跃变方案使系统保持接近平衡时，X射线数据明确显示出正在生长的亚凝胶域和正在收缩的凝胶域共存。当系统像之前的研究那样被过冷并保持远离平衡时，动力学行为更为复杂。这些数据证明，凝胶向亚凝胶相转变的基本机制是亚凝胶域的成核，随后是这些域的生长。
