“…A diverse range of CO 2 -responsive materials has been formed. These include polymers and polymer colloids; 50,53,[58][59][60][61] solvents, 54,62,63 catalysts, [64][65][66] and surfactants; 54,67,68 surfaces and coatings; 69,70 emulsions; [71][72][73][74][75] foams; [76][77][78] membranes; 63,79,80 particles and latexes; [81][82][83] cotton fibres, [84][85][86] and ionic liquids. [87][88][89] Similarly, CO 2 -induced self-assembled structures with complex morphologies have been realised including vesicles, 90,91 worm-like micelles, [92][93][94] and nano-objects.…”