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| Type |
Symposium |
| Area |
[English Session - IBS 심포지엄] New Directions in Polymer Science (※IBS 첨단연성물질 연구단 공동개최) |
| Room No. |
405호 |
| Time |
FRI 10:25-: |
| Code |
POLY2-4 |
| Subject |
Extreme Mechanics of Polymer Vesicles |
| Authors |
장현숙, GRANICK STEVE*
기초과학연구원 첨단연성물질연구단, Korea
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| Abstract |
We introduce the concept of using polymer vesicles (``polymersomes'') as a platform to understand the extreme mechanics of viscoelastic closed membranes. Controlling the stress by adjusting osmotic imbalance between inside and outside these shapes, controlling the strain rate by adjusting the rate at which osmotic imbalance is applied, and controlling the viscoelasticity by varying the molecular weight and degree of entanglement, our direct optical imaging by in situ bright microscopy reveals stretching, rupturing, buckling and fingering. These distinctly different deformation patterns are also influenced by toughening the membranes to form 2D nanocomposite, for example using CdS quantum dots. Whereas applications of polymersomes to encapsulate small molecules or particles for drug delivery are most traditional, this talk shows the splendid potential of polymersomes to study viscoelasticity and shape transformations in two dimensions, with possible future applications for future biomechanics and soft robotics. |
| E-mail |
hyunsook02.jang@gmail.com |
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119th General Meeting of the KCS