In this paper the diffusion behaviour of water in scleroglucan gels is investigated by nuclear magnetic resonance (NMR). In particular, enhanced diffusion is observed in scleroglucan/borax gels. This behaviour becomes anisotropic upon scleroglucan/borax compression, with a preservation of the anomalous diffusion along the compression direction and the disappearance of the phenomenon along the perpendicular direction. Enhanced diffusion is interpreted in the framework of a solvent mediated diffusion model.
Anisotropic enhanced water diffusion in scleroglucan gel tablets / DI MEO, Chiara; Coviello, Tommasina; Matricardi, Pietro; Alhaique, Franco; Donatella, Capitani; Raffaele, Lamanna. - In: SOFT MATTER. - ISSN 1744-683X. - 7:13(2011), pp. 6068-6075. [10.1039/c1sm05190c]
Anisotropic enhanced water diffusion in scleroglucan gel tablets
DI MEO, Chiara;COVIELLO, Tommasina;MATRICARDI, PIETRO;ALHAIQUE, Franco;
2011
Abstract
In this paper the diffusion behaviour of water in scleroglucan gels is investigated by nuclear magnetic resonance (NMR). In particular, enhanced diffusion is observed in scleroglucan/borax gels. This behaviour becomes anisotropic upon scleroglucan/borax compression, with a preservation of the anomalous diffusion along the compression direction and the disappearance of the phenomenon along the perpendicular direction. Enhanced diffusion is interpreted in the framework of a solvent mediated diffusion model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
