Compression and reswelling of microgel particles after an osmotic shock

J.F. Sleeboom, P. Voudouris, M.T.J.J.M. Punter, F.J. Aangenendt, D. Florea, P.P.A.M. van der Schoot, H.M. Wyss

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Uittreksel

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.
TaalEngels
TijdschriftarXiv.org, e-Print Archive, Physics
Nummer van het tijdschrift1612.07694
StatusGepubliceerd - 22 dec 2016

Vingerafdruk

shock
gels
osmosis
microfluidic devices
chromatography
diffusivity
permeability

Bibliografische nota

9 pages, 6 figures, submitted to Phys Rev

Trefwoorden

    Citeer dit

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    Compression and reswelling of microgel particles after an osmotic shock. / Sleeboom, J.F.; Voudouris, P.; Punter, M.T.J.J.M.; Aangenendt, F.J.; Florea, D.; van der Schoot, P.P.A.M.; Wyss, H.M.

    In: arXiv.org, e-Print Archive, Physics, Nr. 1612.07694, 22.12.2016.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademic

    TY - JOUR

    T1 - Compression and reswelling of microgel particles after an osmotic shock

    AU - Sleeboom,J.F.

    AU - Voudouris,P.

    AU - Punter,M.T.J.J.M.

    AU - Aangenendt,F.J.

    AU - Florea,D.

    AU - van der Schoot,P.P.A.M.

    AU - Wyss,H.M.

    N1 - 9 pages, 6 figures, submitted to Phys Rev

    PY - 2016/12/22

    Y1 - 2016/12/22

    N2 - 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.

    AB - 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.

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    KW - cond-mat.mtrl-sci

    KW - physics.chem-ph

    KW - physics.flu-dyn

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    T2 - arXiv.org, e-Print Archive, Physics

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