Metformin Hydrochloride Mucosal Nanoparticles-Based Enteric Capsule for Prolonged Intestinal Residence Time, Improved Bioavailability, and Hypoglycemic Effect - Wenjie Lu; Lingfei Yu; Lujun Wang; Songlin Liu; Manman Li; Zijun Wu; Shengqi Chen; Rongfeng Hu; Haiping Hao (AAPS PharmSciTech, 2022)