Agashe Chinmayee, Varshney Rohit, Sangwan Rekha, Gill Arshdeep K, Alam Mujeeb, Patra Debabrata
Institute of Nano Science and Technology, Knowledge City, Manauli, SAS Nagar, Mohali 140306, Punjab, India.
Langmuir. 2022 Jul 12;38(27):8296-8303. doi: 10.1021/acs.langmuir.2c00725. Epub 2022 Jun 28.
The liquid-liquid interface offers a fascinating avenue for generating hierarchical compartments. Herein, the dynamic imine chemistry is employed at the oil-water interface to investigate the effect of dynamic covalent bonds for modulating the droplet shape. The imine bond formation between oil-soluble aromatic aldehydes and water-soluble polyethyleneimine greatly stabilized the oil-water interface by substantially lowering the interfacial tension. The successful jamming of imine-mediated assemblies was observed when a compressive force was applied to the droplet. Thus, the anisotropic compartmentalization of the liquid-liquid interface was created, and it was later altered by changing the pH of the surrounding environment. Finally, a proof-of-concept demonstration of a pH-triggered cargo release across the interfacial membrane confirmed the feasibility of stimuli-responsive behavior of dynamic imine assemblies.
液-液界面为生成分级隔室提供了一条引人入胜的途径。在此，在油水界面采用动态亚胺化学来研究动态共价键对调节液滴形状的影响。油溶性芳香醛与水溶性聚乙烯亚胺之间形成的亚胺键通过大幅降低界面张力极大地稳定了油水界面。当对液滴施加压缩力时，观察到亚胺介导的组装体成功受阻。因此，创建了液-液界面的各向异性分隔，随后通过改变周围环境的pH值对其进行了改变。最后，关于pH触发的货物跨界面膜释放的概念验证证明证实了动态亚胺组装体刺激响应行为的可行性。
