Choline- versus imidazole-based ionic liquids as functional ingredients in topical delivery systems: cytotoxicity, solubility, and skin permeation studies - Almeida, Tania Santos de; Júlio, Ana; Saraiva, Nuno; Fernandes, Ana Sofia; Araújo, Maria Eduarda M; Baby, André Rolim; Rosado, Catarina; Mota, Joana Portugal (Drug Development and Industrial Pharmacy, 2017)