Compression and reswelling of microgel particles after an osmotic shock
| Autor: | Sleeboom, Jelle F., Voudouris, Panayiotis, Punter, Melle T. J. J. M., Aangenendt, Frank J., Florea, Daniel, Schoot, Paul van der, Wyss, Hans M., Sub Algemeen Theoretical Physics, Theoretical Physics |
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| Přispěvatelé: | Soft Tissue Biomech. & Tissue Eng., Microsystems, MaTe : Materials Technology, Institute for Complex Molecular Systems, Group Den Toonder, Soft Matter and Biological Physics, Group Wyss, Sub Algemeen Theoretical Physics, Theoretical Physics |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Osmotic shock physics.chem-ph Microfluidics FOS: Physical sciences General Physics and Astronomy 02 engineering and technology Condensed Matter - Soft Condensed Matter Thermal diffusivity Soft colloids 01 natural sciences Diffusion Physics - Chemical Physics 0103 physical sciences Osmotic pressure Composite material 010306 general physics Flows in porous media cond-mat.soft Chemical Physics (physics.chem-ph) Condensed Matter - Materials Science Osmotic interactions Polymer gels Fluid Dynamics (physics.flu-dyn) Materials Science (cond-mat.mtrl-sci) Mechanical testing Hydrogels Physics - Fluid Dynamics 021001 nanoscience & nanotechnology Controlled release cond-mat.mtrl-sci physics.flu-dyn Compressive strength Permeability (electromagnetism) Self-healing hydrogels Soft Condensed Matter (cond-mat.soft) 0210 nano-technology |
| Zdroj: | Physical Review Letters, 119(9):098001. American Physical Society Physical Review Letters, 119(9). American Physical Society arXiv.org, e-Print Archive, Physics ISSUE=1612.07694;TITLE=arXiv.org, e-Print Archive, Physics |
| ISSN: | 0031-9007 |
| Popis: | We use dedicated microfluidic devices to expose soft hydrogel particles to a rapid change in the externally applied osmotic pressure and observe a non-monotonic response: After an initial rapid compression the particle slowly reswells to approximately its original size. Using a simple phenomenological and a more elaborate poroelastic model, we extract important material properties from a single microfluidic experiment, including the compressive modulus, the gel permeability and the diffusivity of the osmolyte inside the gel. We expect our approach to be relevant to applications such as controlled release, chromatography, and responsive materials. Comment: 9 pages, 6 figures, submitted to Phys Rev |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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