“…[5] Therefore, polymersomes are attractive candidates for various applications, including anticancer drug carriers, gene and siRNA vectors, and diagnostic imaging probes. [6][7][8] Recently, much attention has been focused on stimuliresponsive polymeric vesicles that can control the release of encapsulated agents by readily triggering a change in the polymersome membrane properties via an external stimulus, such as pH change, hydrolysis, redox, temperature variation, ionic strength, light, electrical potential, or multiple stimuli. [9][10][11][12][13] In particular, a pH-sensitive polymersome exhibits great potential for use in controlled release/encapsulation based on the wide range of pH gradients that are present in biological and physiological systems.…”