1 Key Laboratory of Functional Polymer Materials, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), and Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China. wqzhang@nankai.edu.cn.
An efficient way to achieve nanoparticle-to-vesicle transition of ABC triblock copolymers by in-to-out switch of the pH-sensitive core-forming C block is described.