Synthesis, Characterization, and Biological Studies of Biopolyurethane-Chitosan Composites Based on Diphenylmethane Diisocyanate and Polyol Derived from Castor Oil for the Development of Biomaterials for Topical Use - Ricardo dos Santos Medeiros; Ana Paula Garcia Ferreira; Carolina K. Sanz; Sara Gemini Piperni; Kaio Pini Santos; Marlus Chorilli; Wagner Luiz Polito; Tiago Venâncio; Éder Tadeu Gomes Cavalheiro (ACS Omega)