Water soluble elastin adsorbtion onto UV-activated green polyurethane surfaces

The UV-irradiation is an alternative approach of the polymer surface functionalization that can be easily used in laboratory. This technique doesn’t have an effect on the bulk properties of the green microporous polyurethane films. Thus, the UV-irradiation activates the surface of the green polyurethane by breaking some chemical bonds and generation of new functional groups on the surface which can be controlled by the irradiation time. The amount of water soluble elastin adsorbed on the UV-irradiated polyurethane surface, increase as a function of the exposure time. The new structures of polyurethane-elastin conjugated with specific properties for each time of irradiation were formed. The polyurethane surface has been studied by ATR-FTIR, contact angle and fluorescence spectroscopy.