标题： 冲击波在脂质单层中的耗散和爆轰 显示英文标题

标题： Dissipation and detonation of shock waves in lipid monolayers

摘要： 脂质界面不仅起到分隔作用，还在细胞结构中连接不同的反应中心。 这些界面具有明确的比热和压缩性，因此能量可以沿着它们传播，类似于声波。 在Langmuir槽的气-水界面制备的脂质单层是一个研究这种传播的理想模型系统。 在这里，我们提出最近在脂质单层中观察到的二维冲击波也提供了在这些界面上冲击波爆轰的证据，即： 储存在界面中的化学能可以被传播的冲击波前吸收，并在过程中增强它。 为此，我们在脂质界面及其热力学状态的背景下应用了冲击波和爆轰的经典理论。 基于这些见解，认为在脂质单层中观察到的自持波代表了一种类似爆轰的现象，该现象利用了脂质相变的潜热。 然而，这些方程的一般性质允许其他可能的化学能来源以类似方式对传播的冲击波做出贡献。 因此，将这一理解应用于被认为代表类似现象的神经脉冲传播，以获得对动作电位幅度和阈值的压力和温度依赖性的定性理解。 虽然我们主要讨论稳定爆轰的情况，但还简要讨论了界面上爆轰的引发问题及相应的热交换，这也暗示了类似雷电的现象在脉冲引发中的作用。 显示英文摘要

摘要： Lipid interfaces not only compartmentalize but also connect different reaction centers within a cell architecture. These interfaces have well defined specific heats and compressibilities, hence energy can propagate along them analogous to sound waves. Lipid monolayers prepared at the air-water interface of a Langmuir trough present an excellent model system to study such propagations. Here we propose that recent observations of two-dimensional shock waves observed in lipid monolayers also provide the evidence for the detonation of shock waves at such interfaces, i.e. chemical energy stored in the interface can be absorbed by a propagating shock front reinforcing it in the process. To this end, we apply the classical theory in shock waves and detonation in the context of a lipid interface and its thermodynamic state. Based on these insights it is claimed that the observed self-sustaining waves in lipid monolayers represent a detonation like phenomena that utilizes the latent heat of phase transition of the lipids. However, the general nature of these equations allows that other possible sources of chemical energy can contribute to the propagating shock wave in a similar manner. Consequently, the understanding is applied to the nerve pulse propagation that is believed to represent a similar phenomenon, to obtain a qualitative understanding of the pressure and temperature dependence of amplitude and threshold for action potentials. While we mainly discuss the case of a stable detonation, the problem of initiation of detonation at interfaces and corresponding heat exchange is briefly discussed, which also suggests a role for thunder like phenomena in pulse initiation.