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http://dx.doi.org/10.7317/pk.2012.36.2.190

Interfacial and Rheological Properties of Selected Hydrogel Formulations for Soft Contact Lens  

Noh, Hye-Ran (Department of Optometry, Seoul National University of Science and Technology)
Publication Information
Polymer(Korea) / v.36, no.2, 2012 , pp. 190-195 More about this Journal
Abstract
Interfacial and rheological properties of selected hydrogel formulations were studied to understand the contact-lens comfort in end use. It was concluded that protein adsorption from aqueous solution decreased monotonically with increasing surface energy (water wettability) of tested hydrogels. Also, it has revealed that friction coefficient of polydimethylsiloxane-polyvinylpyrrolidone (PDMS-PVP) was significantly larger that 2-hydroxyethyl methacrylate (HEMA) based hydrogels. Interestingly, in artificial tear solution, friction coefficients of HEMA based hydrogels were larger than silicone hydrogels.
Keywords
protein adsorption; hydrogels; rheology; contact lens; hema;
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