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JUM@P '11: Joint Users' Meeting at PSI 2011

15–16 Sept 2011
Paul Scherrer Institut, Villigen, Switzerland
Europe/Zurich timezone

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Session

Soft Condensed Matter

16 Sept 2011, 09:30
Paul Scherrer Institut, Villigen, Switzerland

Paul Scherrer Institut, Villigen, Switzerland

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chairman: J. Kohlbrecher

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  1. 184. Structural and Viscoelastic Properties of Semifluorinated Alkane Monolayers at the Air/Water Interface
    Dr Ulrich Jonas (Institute of Electronic Structure and Laser, FORTH, Iraclion, Crete)
    16/09/2011, 09:30
    Soft Condensed Matter
    Talk
    The structural and viscoelastic properties of monolayers at the air/water interface are of substantial interest from a scientific point of view, as well as of paramount importance for technological applications from soap films to surface coatings. We currently investigate the class of semifluorinated alkanes at the air/water interface in order to develop a detailed structure-properties...
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  2. 57. Structural changes and phase behavior of densely packed microgel particles
    Dr Urs Gasser (Laboratory for Neutron Scattering, Paul Scherrer Institut)
    16/09/2011, 09:55
    Talk
    Colloidal suspensions of microgel particles are systems of great interest for applications and fundamental studies due to their reversible responsiveness to changes of their environment, such as temperature or hydrostatic pressure. Although it has been shown that microgel particles behave like hard spheres under many circumstances [1], they can reach states that are far beyond hard spheres due...
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  3. 185. Formation of multistranded β-lactoglobulin amyloid fibrils and their stimuli responsive magnetic behaviour in the lyotropic liquid crystals
    Dr Sreenat Bolisetty (Institute for Food Science and Nutrition, ETH Zürich, Switzerland)
    16/09/2011, 10:20
    Soft Condensed Matter
    Talk
    We investigated snapshots of the fibrillation and aggregation kinetics of multi-stranded β-lactoglobulin amyloid protein fibrils at pH 2 and 90 °C by combining scattering (SANS, DLS, DDLS) as well as atomic force microscopy (AFM) 1. Scattering techniques clearly demonstrate the structural conversion and time evolution of β-lactoglobulin monomers (2 wt %) into semi-flexible protein fibrils upon...
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  4. 59. Structural changes of proteins revealed by time-resolved SAXS
    Mr Marcel Petri (Max Planck Institute for Biophysical Chemistry)
    16/09/2011, 10:45
    Soft Condensed Matter
    Talk
    Dronpa may be regarded as the prototype of photochromic proteins. These fluorescent proteins can be reversibly switched between a fluorescent bright and a non-fluorescent dark state by light excitation of the chromophore. Although the X-ray structure of Dronpa in both states has been determined in great detail little is known about the actual switching process itself. We performed...
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