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Elasticity and plasticity of two-dimensional amorphous solid layers of β-lactoglobulin

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Abstract:

We investigate the mechanical properties of a two-dimensional amorphous solid. It is formed spontaneously by the adsorption of a protein (the β-lactoglobulin) at the surface of water. We measure its mechanical response in both elastic and plastic regimes by applying a point-like force (using a glass fiber). We compare our results with previous measurements of shear moduli using a floating torsion device.

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Authors and Affiliations

  1. Laboratoire de Spectrométrie Physique, UMR 5588 CNRS - Université J. Fourier Grenoble 1, BP 87, F-38402 Saint Martin d'Hères cedex, France, , , , , , FR

    S. Courty, B. Dollet & F. Graner

  2. Institut für Theoretische Physik, Otto-von-Guericke-Universität Magdeburg, Postfach 4120, D-39016 Magdeburg, Germany, , , , , , DE

    K. Kassner

  3. Groupe Matière Condensée et Matériaux, UMR 6626 CNRS - Université Rennes 1, Campus de Beaulieu, Bât. 11A, F-35042 Rennes cedex, France, , , , , , FR

    A. Renault

Authors
  1. S. Courty
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  2. B. Dollet
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  3. K. Kassner
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  4. A. Renault
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  5. F. Graner
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Additional information

Received: 10 February 2003 / Accepted: 23 April 2003 / Published online: 27 May 2003

RID="a"

ID="a"Present address: Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK; e-mail: sc374@phy.cam.ac.uk

RID="b"

ID="b"e-mail: graner@ujf-grenoble.fr

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Courty, S., Dollet, B., Kassner, K. et al. Elasticity and plasticity of two-dimensional amorphous solid layers of β-lactoglobulin. Eur Phys J E 11, 53–59 (2003). https://doi.org/10.1140/epje/i2003-10007-9

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  • DOI: https://doi.org/10.1140/epje/i2003-10007-9

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