Fig. 5. ME was applied to a solution of VP-DMA-block-DMA-block-VP-DMA triblock copolymers and sulfonate-functionalised polyanions (PAMPS236, poly(sodium 2-acrylamido-2-methylpropane sulfonate)) (left, uncharged state A) to yield a C3M-based, injectable, crosslinked hydrogel (right, charged state B). Pyrrolidine was applied, both in a signal-induced and autonomous manner, to return to the uncharged solution state A. The letter c denotes a copolymer, the letter b denotes a block-copolymer. Experiments typically conducted in 0.1–0.15 M pH 7.4 phosphate buffer.
