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Contactless Rheology of Soft Gels over a Broad Frequency Range

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorZHANG, Zaicheng
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorARSHAD, Muhammad
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBERTIN, Vincent
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierInstitut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
dc.contributor.authorALMOHAMAD, Samir
hal.structure.identifierGulliver (UMR 7083)
dc.contributor.authorRAPHAËL, Elie
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorSALEZ, Thomas
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorMAALI, Abdelhamid
dc.date.issued2022
dc.identifier.issn2331-7019
dc.description.abstractEnWe report contactless measurements of the viscoelastic rheological properties of soft gels. The experiments are performed using a colloidal-probe Atomic Force Microscope (AFM) in a liquid environment and in dynamic mode. The mechanical response is measured as a function of the liquid gap thickness for different oscillation frequencies. Our measurements reveal an elastohydrodynamic (EHD) coupling between the flow induced by the probe oscillation and the viscoelastic deformation of the gels. The data are quantitatively described by a viscoelastic lubrication model. The frequency-dependent storage and loss moduli of the polydimethylsiloxane (PDMS) gels are extracted from fits of the data to the model and are in good agreement with the Chasset–Thirion law. Our results demonstrate that contactless colloidal-probe methods are powerful tools that can be used for probing soft interfaces finely over a wide range of frequencies.
dc.description.sponsorshipElectrodynamical diffuse layers - ANR-19-CE30-0012
dc.description.sponsorshipMouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010
dc.description.sponsorshipCapteur Interférométrique de Contraintes de Surface - ANR-21-CE06-0029
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enContactless Rheology of Soft Gels over a Broad Frequency Range
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevApplied.17.064045
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des matériaux [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des solides [physics.class-ph]
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.identifier.arxiv2202.04386
bordeaux.journalPhysical Review Applied
bordeaux.page064045
bordeaux.volume17
bordeaux.peerReviewedoui
hal.identifierhal-03562373
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03562373v1
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