PVA/anionic collagen membranes as drug carriers of ciprofloxacin hydrochloride with sustained antibacterial activity and potential use in the treatment of ulcerative keratitis - Daza, Jorge Humberto Unas; Righetto, Gabriela Marinho; Chaud, Marco Vinicius; Martins, Virginia da Conceição Amaro; Camargo, Ilana Lopes Baratella da Cunha; Plepis, Ana Maria de Guzzi (Journal of Biomaterials Applications, 2020)