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Kim, Kyoung Taek
KT Kim Group at UNIST
Research Interests
  • Polymer Chemistry

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Colloidal inverse bicontinuous cubic membranes of block copolymers with tunable surface functional groups

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Title
Colloidal inverse bicontinuous cubic membranes of block copolymers with tunable surface functional groups
Author
La, YunjuPark, ChiyoungShin, Tae JooJoo, Sang HoonKang, SebyungKim, Kyoung Taek
Keywords
COMPLEX MORPHOLOGIES; DIBLOCK COPOLYMERS; LIQUID-CRYSTALLINE; INTERNAL STRUCTURE; MICELLES; VESICLES; PHASES; WATER; TRANSFORMATION; NANOPARTICLES
Issue Date
201406
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE CHEMISTRY, v.6, no.6, pp.534 - 541
Abstract
Analogous to the complex membranes found in cellular organelles, such as the endoplasmic reticulum, the inverse cubic mesophases of lipids and their colloidal forms (cubosomes) possess internal networks of water channels arranged in crystalline order, which provide a unique nanospace for membrane-protein crystallization and guest encapsulation. Polymeric analogues of cubosomes formed by the direct self-assembly of block copolymers in solution could provide new polymeric mesoporous materials with a three-dimensionally organized internal maze of large water channels. Here we report the self-assembly of amphiphilic dendritic-linear block copolymers into polymer cubosomes in aqueous solution. The presence of precisely defined bulky dendritic blocks drives the block copolymers to form spontaneously highly curved bilayers in aqueous solution. This results in the formation of colloidal inverse bicontinuous cubic mesophases. The internal networks of water channels provide a high surface area with tunable surface functional groups that can serve as anchoring points for large guests such as proteins and enzymes.
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DOI
http://dx.doi.org/10.1038/nchem.1946
ISSN
1755-4330
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