TY - EJOU AU - J.A.Ferreira, AU - Oliveira, P. AU - Silva, P.M. AU - Carreira, A. AU - Murta, J.N. TI - Sustained Drug Release from Contact Lenses T2 - Computer Modeling in Engineering \& Sciences PY - 2010 VL - 60 IS - 2 SN - 1526-1506 AB - This paper focuses on the release of an ophthalmic drug (flurbiprofen) from a loaded copolymer where the drug is simultaneously dispersed in the polymeric matrix and entrapped in particles. The copolymer is based in 2-hydroxyethyl methacrylate co-methacrylic acid and silicone is used to prepare the loaded particles. A mathematical model to simulate the drug release is proposed and a qualitative analysis is performed. In vitro experimental results are compared with simulation results. Contact lens made from the presented copolymer are expected to deliver drug at therapeutical levels for a few days. KW - Ophthalmic drug delivery KW - contact lenses KW - p-(HEMA/MAA) KW - reaction-diffusion equation KW - qualitative behavior KW - in vitro experiments KW - simulation results DO - 10.3970/cmes.2010.060.151