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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received August 12, 2011
Accepted September 5, 2011
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Optical application of poly(HEMA-co-MMA) containing silver nanoparticles and N,N-dimethylacrylamide

Department of Ophthalmic Optics, Daebul University, Jeonnam 526-702, Korea
Korean Journal of Chemical Engineering, May 2012, 29(5), 686-691(6), 10.1007/s11814-011-0231-1
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Abstract

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.

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