Xiaoxiao Hu, Caifen Wang, Lebing Wang, Zhaoxin Liu, Li Wu, Guoqing Zhang, Lin Yu, Xiaohong Ren, Peter York, Lixin Sun, Jiwen Zhang, Haiyan Li
It is essential to optimize a carrier of dry powder inhalation (DPI) for the aerodynamic deposition in vitro to achieve pulmonary delivery of drug molecules in vivo. In this study, neutralized nanoporous γ-cyclodextrin metal-organic framework (CD-MOF) crystals with cubic morphology and uniform inhalation size were developed and modified as a DPI carrier for budesonide (BUD). Cholesterol (CHO) and leucine (LEU)-poloxamer were used to modify the CD-MOF powder for the improvement of flowability and particle aerodynamic behaviour, for which the particle size distribution, Carr's index and in vitro pulmonary deposition were assessed...
April 11, 2019: International Journal of Pharmaceutics