Abstract
Surface modification can be done using various methods. For Polymeric surface, one of the most important methods is the laser treatment. At this method, we can exactly control the type and quality of surface treatment. Special wavelength of laser beam can be selectively absorbed by special bond. Laser absorbed energy can change chemical structure of selective bonds and so physical properties of polymer surface. At present work, CO2 and Nd:YAG Lasers were used to modify surface of Polycarbonate (PC) films in order to increase their biocompatibility of films. After laser irradiation in air, some changing in chemical and physical properties of the irradiated films took place. The irradiated film was characterized by using the light microscope, scanning electron microscopy (SEM) and contact angle measurements. The effect of pulse number on the surface properties was also investigated. To examine final biocompatibility of PC films cell culture growth tests on the treated surface was also done.
