
Keywords: 5-FU; 5-fluorouracil; APIs; active pharmaceutical ingredients; BBB; blood brain barrier; BCNU; 3-bis (2- chloroethyl)-1-nitrosourea; CBSA; cationic bovine serum albumin; CQ; clioquinol; EPR; enhanced permeability and retention; FA-BSA-CM-β-CD; folic acid