Preparation and characterization of ethanol-treated silk fibroin dense membranes for biomaterials application using waste silk fibers as raw material - Nogueira, Grínia Michelle; Rodas, Andréa Cecília Dorion; Leite, Carlos Alberto de Oliveira; Giles, Carlos; Higa, Olga Zazuco; Polakiewicz, Bronislaw; Beppu, Marisa Masumi (Bioresource Technology, 2010)