the study of lysozyme adsorption onto 2-hydroxyethylmethacrylates and silicon hydrogel contact lenses
نویسندگان
چکیده
in order to increase the water content and the oxygen permeability of hydrogels used in themanufacture of contact lenses, the polar monomer silicon hydrogel contact lenses (shcl), and 2-hydroxyethyl methacrylate (hema) were copolymerized with the hydrogels. due to the presence ofpolar monomers in the conventional contact lenses, the major component of the human tear,lysozyme is extensively adsorbed onto their surfaces. the adsorption of lysozyme onto the contactlens’ surface leads to limitations in its application. the present study concentration of lysozyme,adsorbed onto the surface of hema and shcl hydrogels were measured by uv-vis spectroscopy.the lysozyme employed was obtained from solutions with similar to concentration of artificial tear.the adsorption results were examined by the langmuir adsorption isotherm and the constants of thisisotherm were also evaluated.
منابع مشابه
The study of Lysozyme adsorption onto 2-hydroxyethylmethacrylates and Silicon Hydrogel Contact Lenses
In order to increase the water content and the oxygen permeability of hydrogels used in themanufacture of contact lenses, the polar monomer Silicon Hydrogel Contact Lenses (SHCL), and 2-hydroxyethyl methacrylate (HEMA) were copolymerized with the hydrogels. Due to the presence ofpolar monomers in the conventional contact lenses, the major component of the human tear,lysozyme is extensively adso...
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PURPOSE To examine the processes involved in formation of protein deposits on hydrogel contact lenses. METHODS The adsorption and/or penetration of lysozyme on or into three types of contact lenses, etafilcon A, vifilcon A, and tefilcon, were investigated in vitro using a radiolabel-tracer technique, x-ray photoelectron spectroscopy, and laser scanning confocal microscopy. RESULTS Binding o...
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In this study, a series of laboratory tests were conducted to investigate the efficiency of hydroxyapatite (1-iAP)nanopowders towards adsorption of lysozyme from aqueous solution. In the present research. I RP nanopowderssynthesized from egg-shell characterized using SEM and FT-Ht. The adsorption of lysozyme was I mg/mL using0.1 g adsorbent in 100 mL of lysozyme solution. Adsorption data were f...
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عنوان ژورنال:
journal of physical & theoretical chemistryISSN
دوره 9
شماره 3 2012
میزبانی شده توسط پلتفرم ابری doprax.com
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