Figure 6.

A) Chemical structure of CO₂‐responsive amphiphilic block copolymer. B) Schematic diagram of self‐assembly of copolymer into polymer vesicles and reversible CO₂‐controlled breathing behavior and C) amounts of released cargo after 10 min or 2 h of CO₂ bubbling and schematic diagram of polymer vesicles that can permeate differently sized cargos depending on CO₂ levels. Reproduced with permission.49 Copyright 2013, Wiley‐VCH.