Reshaping Membrane Polymorphism of Polymer Vesicles through Dynamic Gas Exchange,Journal of the American Chemical Society

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Reshaping Membrane Polymorphism of Polymer Vesicles through Dynamic Gas Exchange
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2021-11-23 , DOI: 10.1021/jacs.1c07838
Jiannan Zhu ₁ , Zehao Gong ₁ , Cuiqin Yang ₁ , Qiang Yan ₁

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The quest for a universal method to shape the vesicular morphology in dynamic and diversified manners is a challenging topic of cell mimicry. Here we present a simple gas exchange strategy that can direct the deformation movements of polymer vesicles. Such vesicles are assembled by a class of gas-based dynamic polymers, where CO₂ connects between the frustrated Lewis pair via dynamic gas-bridged bonds. Use of other competitive gases (N₂O, SO₂, or C₂H₄) to in situ exchange the CO₂ linkages can change the polymer structure and drive the membrane to proceed with three fundamental movements, including membrane stretching, membrane incurvation, and membrane protrusion, thus remolding the shapes of polymersomes. The choices of gas types, concentrations, and combinations are crucial to adjusting the vesicle evolution, local change of membrane curvature, and anisotropic geometrical transformation. This will become a generalized strategy to control the vesicular polymorphism and deformable behavior.

中文翻译：

通过动态气体交换重塑聚合物囊泡的膜多态性

寻求一种以动态和多样化的方式塑造囊泡形态的通用方法是细胞模拟的一个具有挑战性的课题。在这里，我们提出了一种简单的气体交换策略，可以指导聚合物囊泡的变形运动。这种囊泡由一类基于气体的动态聚合物组装而成，其中CO ₂通过动态气桥键连接受挫的路易斯对之间。使用其他竞争气体（N ₂ O、SO ₂或 C ₂ H ₄）就地交换 CO ₂连接可以改变聚合物的结构并驱动膜进行膜拉伸、膜弯曲和膜突出三个基本运动，从而重塑聚合物小体的形状。气体类型、浓度和组合的选择对于调节囊泡演化、膜曲率的局部变化和各向异性几何变换至关重要。这将成为控制囊泡多态性和可变形行为的通用策略。

更新日期：2021-12-08

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