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Xing X, Shin H, Bowick MJ, et al. Morphology of nematic and smectic vesicles. Proc Natl Acad Sci U S A. 2012;109(14):5202-6doi: 10.1073/pnas.1115684109.
Xing, X., Shin, H., Bowick, M. J., Yao, Z., Jia, L., & Li, M. H. (2012). Morphology of nematic and smectic vesicles. Proceedings of the National Academy of Sciences of the United States of America, 109(14), 5202-6. https://doi.org/10.1073/pnas.1115684109
Xing, Xiangjun, et al. "Morphology of nematic and smectic vesicles." Proceedings of the National Academy of Sciences of the United States of America vol. 109,14 (2012): 5202-6. doi: https://doi.org/10.1073/pnas.1115684109
Xing X, Shin H, Bowick MJ, Yao Z, Jia L, Li MH. Morphology of nematic and smectic vesicles. Proc Natl Acad Sci U S A. 2012 Apr 03;109(14):5202-6. doi: 10.1073/pnas.1115684109. Epub 2012 Mar 19. PMID: 22431595; PMCID: PMC3325697.
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Proc Natl Acad Sci U S A. 2012 Apr 03;109(14):5202-6. doi: 10.1073/pnas.1115684109. Epub 2012 Mar 19.

Morphology of nematic and smectic vesicles.

Proceedings of the National Academy of Sciences of the United States of America

Xiangjun Xing, Homin Shin, Mark J Bowick, Zhenwei Yao, Lin Jia, Min-Hui Li

Affiliations

  1. Institute of Natural Sciences and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China. [email protected]

PMID: 22431595 PMCID: PMC3325697 DOI: 10.1073/pnas.1115684109

Abstract

Recent experiments on vesicles formed from block copolymers with liquid-crystalline side chains reveal a rich variety of vesicle morphologies. The additional internal order ("structure") developed by these self-assembled block copolymer vesicles can lead to significantly deformed vesicles as a result of the delicate interplay between two-dimensional ordering and vesicle shape. The inevitable topological defects in structured vesicles of spherical topology also play an essential role in controlling the final vesicle morphology. Here we develop a minimal theoretical model for the morphology of the membrane structure with internal nematic/smectic order. Using both analytic and numerical approaches, we show that the possible low free energy morphologies include nano-size cylindrical micelles (nano-fibers), faceted tetrahedral vesicles, and ellipsoidal vesicles, as well as cylindrical vesicles. The tetrahedral vesicle is a particularly fascinating example of a faceted liquid-crystalline membrane. Faceted liquid vesicles may lead to the design of supramolecular structures with tetrahedral symmetry and new classes of nano-carriers.

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