fig5
![Zwitterionic hydrogels and their biomedical applications: a review](https://image.oaes.cc/e5c927e2-0cf9-4a49-9ed5-851d2f6e14b9/cs3050.fig.5.jpg)
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.