Low-Ordered Materials, Fibre Diffraction

Chair: Jan Kroon (the Netherlands), Co-chair: P. Langan (France)

Wim Bras Developments in Time-Resolved SAXS/WAXS Experiments A
L.M.J. Kroon-Batenburg, A.M.M. Schreurs, J. Kroon Renewed Evaluation of Fibre Diffraction Data of Cellulose II A
A. Deriu, G. Albanese, F. Cavatorta Dynamic Structuring of Water in Polysaccharides by Neutron Scattering and Rayleigh Scattering of Mössbauer Radiation A
A. Burian, A. Ibanez, D. Raoux Determination of Partial Structure Factors for Amorphous Materials by Anomalous X-Ray Scattering A
T. Wess, P.P. Purslow, C.M. Kielty Diffraction Studies on Collagen and Fibrilin A
M. Weik, G. Zaccai Localization of Deuterium Labels in Purple Membranes by Neutron Diffraction: Power and Limitations of the Method A
M. Jokic, J. Makarevic, M. Zinic, B. Peric, B. Kojic-Prodic Molecular assemblies in gel and fibre or crystal of bis-(amino acid) A

 

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Co-chair W. Bras dealt with time-resolved SAXS/WAXS experiments on non-crystalline samples for phase-transition studies and he discussed the possibilities at the new ESRF beamline. L.M.J. Kroon-Batenburg described an improved procedure to evaluate fibre diffraction data obtained on a CCD camera and reported on results obtained for cellulose II fibres supported by MD simulations. A. Deriu spoke on his findings of dynamic structuring of water in haluronic acid, a biological polyelectrolyte, as established by means of neutron diffraction and Rayleigh scattering of Moessbauer radiation. A. Burian introduced a new procedure to retrieve partail radial distribution functions in amorphous materials, making use of anomalous scattering. T.J. Wess reported on X-ray diffraction studies of fibrillin rich microfibrils, which form beaded structures, and demonstrated the organization of individual microfibrils and their three-dimensional arrays in vivo. Localization of deuterium labels in purple membranes (PM) by neutron diffraction was dealt with by M. Weik. Besides discussing structural results he addressed the potentials and limitations of this method. The last talk was given by B. Kojic-Prodic, who described the gelating capacity of peptide-based molecules with H bonding as an important mediator.

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A. Burian

J. Kroon, Chair (ECM-18 report session B8)