Collective Shape Actuation of Polymer Double Emulsions by Solvent Evaporation
| Autor: | David A. Weitz, Jonathan E. Didier, Weichao Shi, Donald E. Ingber |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
endocrine system
Materials science Shell (structure) 02 engineering and technology 010402 general chemistry complex mixtures 01 natural sciences Physics::Fluid Dynamics Surface tension Amphiphile Physics::Atomic and Molecular Clusters Copolymer General Materials Science chemistry.chemical_classification Physics::Biological Physics Quantitative Biology::Biomolecules technology industry and agriculture Polymer 021001 nanoscience & nanotechnology eye diseases 0104 chemical sciences Condensed Matter::Soft Condensed Matter Solvent Volume (thermodynamics) chemistry Chemical engineering Deformation (engineering) 0210 nano-technology |
| Zdroj: | ACS applied materialsinterfaces. 10(38) |
| ISSN: | 1944-8252 |
| Popis: | We demonstrate that the shape actuation of water-in-oil-in-water double emulsion droplets can be achieved by controlling solvent evaporation in a model system, where the oil phase consists of hydrophobic homopolymer/amphiphilic block copolymer/solvent. A gradient of interfacial tension is created in the polymer shell, which drives significant deformation of the droplets in constant volume. The deformed droplets recover to their initial shape spontaneously, and shape actuation of droplets can be further tuned by osmotic pressure. Our model system provides a new prototype for developing shape-responsive droplets in a solvent environment. |
| Databáze: | OpenAIRE |
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