Contactless Rheology of Soft Gels over a ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Contactless Rheology of Soft Gels over a Broad Frequency Range
Author(s) :
Zhang, Zaicheng [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Arshad, Muhammad [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Bertin, Vincent [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Almohamad, Samir [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Raphaël, Elie [Auteur]
Gulliver (UMR 7083)
Salez, Thomas [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Maali, Abdelhamid [Auteur correspondant]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Arshad, Muhammad [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Bertin, Vincent [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Almohamad, Samir [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Raphaël, Elie [Auteur]
Gulliver (UMR 7083)
Salez, Thomas [Auteur]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Maali, Abdelhamid [Auteur correspondant]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Journal title :
Physical Review Applied
Pages :
064045
Publisher :
American Physical Society
Publication date :
2022
ISSN :
2331-7019
HAL domain(s) :
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
Physique [physics]/Mécanique [physics]/Mécanique des matériaux [physics.class-ph]
Physique [physics]/Mécanique [physics]/Mécanique des solides [physics.class-ph]
Physique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
Physique [physics]/Mécanique [physics]/Mécanique des matériaux [physics.class-ph]
Physique [physics]/Mécanique [physics]/Mécanique des solides [physics.class-ph]
Physique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
English abstract : [en]
We 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. ...
Show more >We 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.Show less >
Show more >We 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.Show less >
Language :
Anglais
Popular science :
Non
ANR Project :
Comment :
Travaux lié a la thèse de monsieur "Samir Almohamad"
Source :
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