Novel multicore niosomes based on double pH-sensitive mixed micelles for Ginsenoside Rh2 delivery

Abstract In this study, we report the novel double pH-sensitive mixed micelles to fabricate multicore niosomes for drug delivery. The double pH-sensitive mixed micelles (PMM) were prepared with different pH-sensitive polymers, mPEG2000-Hz-CHEMS and mPEG2000-IS (2:1 w/w). Ginsenoside Rh2-loaded DPMM was mixed with Pluronic F-68, in the aqueous medium, and multicore niosomes were fabricated. The size of multicore niosomes were around 100-300 nm with a high encapsulation efficiency of G-Rh2. The G-Rh2-MCN could release encapsulated G-Rh2 with an accelerated rate under lower pH conditions with lower cytotoxicity and good antitumor efficacy.