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arXiv 0902.2454physics.bio-ph
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生物膜的物理性质

Physical Properties of Biological Membranes

Thomas Heimburg

摘要:

生物膜主要由脂质和蛋白质组成。虽然蛋白质作为单分子具有许多功能,但膜作为一个整体显示出无法在单分子水平上解释的物理性质。例如,膜显示熔化事件、相行为和弹性。生物膜调整其组成,以便在外部条件变化时保持物理特性。这对成分、温度和压力的变化起作用。本文介绍了整个膜的物理学,并展示了渗透性、脉冲传播和麻醉剂效应等现象是如何产生的。

英文摘要:

Biological membranes mainly consist of lipids and proteins. While the proteins have many functions as single molecules, the membrane as a whole displays physical properties that cannot be explained on the single molecule level. For example, membranes show melting events, phase behavior, and elasticity. Biomembranes adapt their composition such that the physical properties are maintained when the external conditions change. This gives a role to changes in composition, to temperature and pressure. This article introduces into the physics of membranes as a whole and shows how phenomena as permeability, pulse propagation and the effect of anesthetics arise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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