Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5376175 | Chemical Physics | 2008 | 6 Pages |
Abstract
The measurements were performed at room temperature on lyophilized and H2O hydrated nanoparticles (h = 0.47 w H2O/w hydrated sample). In the latter, hydration water is mostly enclosed inside the nanoparticles; its dynamics is similar to that of bulk water but with a significant decrease in diffusivity. The scattering from the nanoparticles can be described by a simple model of confined diffusion. In the lyophilized state only hydrogens belonging to the polar heads are seen as mobile within the experimental time-window. In the hydrated sample the diffusive dynamics involves also a significant part of the hydrogens in the lipid tails.
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Chemistry
Physical and Theoretical Chemistry
Authors
M.T. Di Bari, Y. Gerelli, F. Sonvico, A. Deriu, F. Cavatorta, G. Albanese, P. Colombo, F. Fernandez-Alonso,