Publications by authors named "Henri Gleyzolle"
This paper describes a tunable X-ray focusing apparatus, referred to as a transfocator, based on compound refractive lenses. By varying the number of lenses in the beam, the X-ray energy focused and the focal length can be varied continuously throughout a large range of energies and distances. The instrument can be used in both white and monochromatic beams to focus, pre-focus or collimate the beam.
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- - Arctic fish and amphibians produce cryo-protective substances to protect their cells from damage during freezing, and researchers replicated this by creating organic membranes using these substances as a base.
- - The study involved cooling amphiphilic monolayers to -40 degrees C, which allowed scientists to explore new insights into membrane properties not previously accessible at such low temperatures.
- - Findings showed that cooling these monolayers caused a transition from a mesophase with tilted molecular chains to a crystalline phase with upright chains, revealing a different alignment than the traditional herringbone structure.
X-ray photon correlation spectroscopy was used to probe the diffusive dynamics of colloidal particles in a shear flow. Combining X-ray techniques with microfluidics is an experimental strategy that reduces the risk of X-ray-induced beam damage and also allows time-resolved studies of processes taking place in flow cells. The experimental results and theoretical predictions presented here show that in the low shear limit for a ;transverse flow' scattering geometry (scattering wavevector q perpendicular to the direction of flow) the measured relaxation times are independent of the flow rate and determined only by the diffusive motion of the particles.
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