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arXiv · 1609.05888

Microrheology of viscoelastic solutions studied by magnetic rotational spectroscopy

Jean-François Berret
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Abstract

Magnetic rotational spectroscopy is based on the use of magnetic micron-size wires for viscosity measurements. Submitted to a rotational magnetic field with increasing frequency, the wires undergo a hydrodynamic instability between a synchronous and an asynchronous regime. From a comparison between predictions and experiments, the static shear viscosity and elastic modulus of wormlike micellar solutions are here determined. The values agree with the determination by cone-and-plate rheometry.

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Jean-François Berret. 2016-09-17. Microrheology of viscoelastic solutions studied by magnetic rotational spectroscopy. https://doi.org/10.1504/ijnt.2016.079661

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