We report chemically fueled oscillations of vesicles. The population cycling of vesicles is driven by their self-reproduction and collapse within a biphasic reaction network involving the interplay of molecular and supramolecular events. We studied the oscillations on the molecular and supramolecular scales and tracked vesicle populations in time by interferometric scattering microscopy and dynamic light scattering. Complex supramolecular events were observed during oscillations─including vesicle reproduction, growth, and decomposition─and differences in the number, size, and mass of aggregates can often be observed within and between pulses. This system’s dynamic behavior is reminiscent of a reproductive cycle in living cells.

中文翻译：

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化学反应网络驱动振荡自我复制囊泡中复杂的群体动态


我们报告了化学燃料引起的囊泡振荡。囊泡的群体循环是由它们在涉及分子和超分子事件相互作用的双相反应网络中的自我复制和崩溃驱动的。我们研究了分子和超分子尺度上的振荡，并通过干涉散射显微镜和动态光散射及时跟踪囊泡种群。在振荡过程中观察到复杂的超分子事件，包括囊泡繁殖、生长和分解，并且通常可以在脉冲内和脉冲之间观察到聚集体的数量、大小和质量的差异。该系统的动态行为让人想起活细胞的生殖周期。