S Mohajeri - Authors are with the Polymer Group, Department of Chemical Engineering, Faculty of Engineering, Terabit Modares University , Tehran , Iran (corresponding author)
L Golshan Ebrahimi - Authors are with Pediatric Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran
A Kajbafzadeh - Authors are with the Polymer Group, Department of Chemical Engineering, Faculty of Engineering, Terabit Modares University , Tehran , Iran (corresponding author)
H Hosseinkhani - Authors are with Pediatric Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran

this study describes an investigation of gelatin sponge mechanically reinforced through the incorporation of Polypropylene/ Polyethylene Terephthalate (PP/PET) alloy fibers. The gelatin solution of 5%(w/v) was used incorporating various amounts of PP/PET fiber (5, 10, 15, 25 and 50 mg), were fabricated by the conventional freeze-drying method, followed by dehydrothermal cross-linking treatment to obtain gelatin sponges incorporating PP/PET fiber to various extents. By scanning electron microscopy observation, the gelatin sponges exhibited isotropic and interconnected pore structures that are necessary for cell culture. As expected, PP/PET fiber incorporation enabled the gelatin sponges to significantly enhance their compression strength.