Silvia Caponi

TL;DR: Measurements of the sound attenuation coefficient in vitreous silica, for sound waves of wavelength between 50 and 80 nm, performed with the new inelastic UV light scattering technique indicate that in silica glass a crossover between a temperature-dependent and temperature-independent acoustic attenuation mechanism occurs at Q approximately equal to 0.15 nm(-1).

TL;DR: In a proof-of-principle experiment, the ability of this spectroscopic technique to characterize subcellular compartments and distinguish cell status was successfully tested and the results strongly support the future application of this technique for fundamental issues in the biomedical field.

TL;DR: The moduli of collagen and elastin are much higher than those measured at lower frequency using macroscopic strains, and the difference between them is much less, suggesting that molecular-scale viscoelastic effects are responsible for the frequency dependence of the fibre biomechanics.

TL;DR: The first application of micromechanical mapping based on Brillouin scattering spectroscopy to probe the stiffness of individual amyloid plaques in the hippocampal part of the brain of a β-amyloid overexpressing transgenic mouse gives a new insight into the plaque biophysics and biomechanics.

TL;DR: In this paper, the dynamic structure factor of vitreous silica has been measured by inelastic x-ray scattering in the exchanged wavevector (Q) region Q=4-16.5 nm - 1 and up to energies ∞ω= 115 meV in the Stokes side.