fig5

Figure 5. (A) The salt effect on the crosslinked networks in polyampholyte (PA) gels without chemical crosslinking (i) and with chemical crosslinking (ii). Reproduced with permission from^[87]. Copyright 2023, American Chemical Society. The (B) anti-polyelectrolyte effect and (C) thermal responsiveness of PMEDAPA hydrogel. Reproduced with permission from^[89]. Copyright 2019, The Royal Society of Chemistry. PA: Polyampholyte; PMEDAPA: poly(2-((2-(methacryloyloxy)ethyl)dimethylammonio)acetyl)(phenylsulfonyl)amide.