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Issue
Korean Journal of Chemical Engineering,
Vol.29, No.5, 686-691, 2012
Optical application of poly(HEMA-co-MMA) containing silver nanoparticles and N,N-dimethylacrylamide
Sung AY, Kim TH
High functional ophthalmic lens materials, poly(HEMA-co-MMA)s, were prepared by the copolymerization of HEMA, MMA, NVP, EDGMA, and N,N-dimethylacrylamide in the presence of silver nanoparticles. Silver nanoparticles have antimicrobial properties and a hydrophilic monomer N,N-dimethylacrylamide has excellent biocompatibility and oxygen transmissibility. The water content was in the range of 36.63-44.45%, indicating the characteristics of general water-content contact lenses, and the refractive index was measured to be in the range of 1.423-1.435. Meanwhile, the oxygen transmissibility ranged from 10.63×10^(-11) to 18.85×10^(-11) (cm2/sec)(mlO2/ml×mmHg) increasing with increasing the addition ratio of N,N-dimethylacrylamide. The polymeric materials satisfied the basic characteristics required for ophthalmic contact lenses. The polymers can be used to fabricate antimicrobial hydrogel contact lenses with high oxygen transmissibility.
Keywords: Silver Nanoparticle; N,N-dimethylacrylamide; Oxygen Permeability; Water Content; Antimicrobial Property
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