Incorporation of Amphipathic Diblock Copolymer in Lipid Bilayer for Improving pH Responsiveness

Figure 6

(a) The Pol values of hybrid liposomes incorporated with various copolymer contents at pH 7.4 measured immediately after preparation; (b) scheme of copolymers inserting into lipid bilayer as locks; (c) cumulative release profiles of DOX from liposomes inserted by various ratios of mPEG₈-b-PDPA₂₂ under pH 6.0 and pH 7.4 at 37°C.

(a)  

(b)

(c)