Biodegradable interpenetrating polymer network hydrogel membranes of chitosan and gelatin were prepared by solvent casting evaporation method for the controlled release of 5‑fluorouracil (5‑FU), an anticancer drug. The membranes were characterized by Fourier Transform Infrared Spectroscopy (FTIR), differential scanning calorimeter (DSC), X‑ray diffraction (XRD), scanning electron microscopy (SEM) and...