Bilayered membranes of Janus dendrimers with hybrid hydrogenated and fluorinated dendrons: microstructures and coassembly with lipids

Literature Information

Publication Date 2019-05-29
DOI 10.1039/C9CP01635J
Impact Factor 3.676
Authors

Yan-Ling Yang, Yu-Jane Sheng, Heng-Kwong Tsao


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Abstract

A biomimetic membrane formed by hybrid Janus dendrimers (JDs) which contain hydrogenated and fluorinated dendrons was explored by dissipative particle dynamics simulations. The JD membrane is bilayered and shows a bicontinuous morphology which is also observed in nano-sized dendrimersomes. The thickness of the dendrimersome is significantly less than that of the planar membrane. The co-assembly of lipids with JDs to develop a hybrid membrane was studied as well. Lipids tend to locate in the hydrocarbon domain of the bicontinuous structure of the JD-rich membrane, while 2-dimensional micelles of JDs float in the leaflet of the lipid-rich membrane. The microstructure of the hybrid membrane was quantified by interdigitation lengths in the hydrocarbon, fluorocarbon, and lipid domains. Finally, the influence of lipid concentration on lipid fluidity was examined in terms of lipid diffusivity, which is found to be closely associated with the membrane microstructure.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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