arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.3899physics.bio-phcond-mat.softq-bio.BM
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开放和封闭分子自组装的比较

Comparing open and closed molecular self-assembly

Martin Castelnovo, Timothée Verdier, Lionel Foret

摘要:

本文从理论上研究了开放体系中分子的自组装,该体系由单体供给,耗尽部分或完全的团簇。这种情况可能发生在例如病毒自组装的背景下。我们提供了一个平均场尺寸分布的一般公式,该公式在封闭系统的平衡态和开放系统的定态下都有效。这使我们能够以一种简单的方式探索自组装的非平衡特性,并将其与平衡特性进行比较。特别是,我们确定了一个区域的参数空间,在外部通量的存在下的平衡尺寸分布等于在没有外部通量的情况下的平衡尺寸分布,直到一个恒定的重整化因子。这个结果的有效性范围及其后果进行了讨论。

英文摘要:

We study theoretically in the present work the self-assembly of molecules in an open system, which is fed by monomers and depleted in partial or complete clusters. Such a scenario is likely to occur for example in the context of viral self-assembly. We provide a general formula for the mean-field size distribution which is valid both at equilibrium in a closed system, and in the stationary state in an open system. This allows us to explore in a simple way out-of-equilibrium features for self-assembly and compare them to equilibrium properties. In particular, we identify a region of parameter space for which the out-of-equilibrium size distribution in the presence of external fluxes is equal to the equilibrium size distribution in the absence of external fluxes, up to a constant renormalization factor. The range of validity of this result and its consequences are discussed.

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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