The different swelling properties of ionic and non-ionic lenses, immersed in sodium chloride or artificial tears, were investigated by Low-Field Nuclear Magnetic Resonance (LF-NMR) through relaxation time and self-diffusion coefficient measurements. A new model was developed to estimate the water self-diffusion coefficient inside the lenses, the results of which revealed a different mechanism of interaction for ionic versus non-ionic materials with artificial tears. The consequence of this finding suggests clinical implications.
LF-NMR water self-diffusion and relaxation time measurements of hydrogel contact lenses interacting with artificial tears / Manetti, Cesare; Casciani, Lorena; Pescosolido, Nicola. - In: JOURNAL OF BIOMATERIALS SCIENCE POLYMER EDITION. - ISSN 0920-5063. - STAMPA. - 15:3(2004), pp. 331-342. [10.1163/156856204322977210]
LF-NMR water self-diffusion and relaxation time measurements of hydrogel contact lenses interacting with artificial tears
MANETTI, Cesare;CASCIANI, Lorena;PESCOSOLIDO, Nicola
2004
Abstract
The different swelling properties of ionic and non-ionic lenses, immersed in sodium chloride or artificial tears, were investigated by Low-Field Nuclear Magnetic Resonance (LF-NMR) through relaxation time and self-diffusion coefficient measurements. A new model was developed to estimate the water self-diffusion coefficient inside the lenses, the results of which revealed a different mechanism of interaction for ionic versus non-ionic materials with artificial tears. The consequence of this finding suggests clinical implications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.