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JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY · 2014 · IF 0.705

Electroformed Giant Vesicles from a Binary Mixture of Phospholipids and Quaternary Ammonium Salts

Yiwei Li,Raymond Seekell,Sihui Zhan,Jie Cao,Jing Jing,Yi Li

In this article, positively charged GVs were electroformed in a binary system of quaternary ammonium salts and egg phosphatidylcholine (EggPC) under an alternative current (AC) electric field. The diameter and charge density of the GVs is controlled by doping suitable cationic quaternary ammonium molecules into the EggPC bilayer. By developing positively charged GVs, there will be expanded the applications for phospholipids vesicles, especially the investigation of charge-induced interactions between cationic lipid membranes and macromolecules, such as colloidal particles or proteins.

CAS / MDL: 1119-94-4 2082-84-0 57-09-0 1119-97-7 1120-02-1 10108-86-8 8044-71-1

研究领域: 生物化学 · 材料科学

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JOURNAL OF APPLIED POLYMER SCIENCE · 2018 ·Vol. 135 ·期 28 ·46503 · IF 1.901

Hierarchical self-assembly of Y-shaped amphiphilic triblock polyurethane/poly(acrylic acid) complexes: Giant vesicles, vesicles, 3D network, and bulk structures

Shuangquan Lai,Yong Jin,Hanping Li,Xiaopeng Sun,Jiezhou Pan

A simple and effective approach to induce hierarchical self-assembly of Y-shaped amphiphilic triblock polyurethane/poly(acrylic acid) complexes system in aqueous media is reported here. Hydrogen bonding interactions and electrostatic repulsive forces, which can be controlled by regulating the pH condition of complexes solution, were the main driving forces to induce morphological transitions. With the gradual decrease of pH value, a variety of micro-/nanostructures including giant vesicles, small vesicles, multi-layer three-dimensional (3D) porous network structures and “bulk” structures were successively obtained. Among these structures, the micron-scale multi-layer 3D porous network structure formed from block copolymer/homopolymer complexes was rarely reported. Therefore, this research demonstrates that the hierarchical self-assembly of polymers complexes in aqueous media is a viable approach to construct different interesting micro-/nanostructure assemblies, and supplies a new clue for the fabrication of multi-layer 3D porous network structures. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46503.

研究领域: 材料科学 · 高分子化学 · 纳米技术

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Electroformed Giant Vesicles from a Binary Mixture of Phospholipids and Quaternary Ammonium Salts

Hierarchical self-assembly of Y-shaped amphiphilic triblock polyurethane/poly(acrylic acid) complexes: Giant vesicles, vesicles, 3D network, and bulk structures