fig6
Figure 6. (A) Various gel materials and their characteristics[93]; (B) Schematic structure and main properties of CS/P(AA-co-AAm)/MXene@PEI/Fe3++Cu2+ nanocomposite dual network hydrogel[94]; (C) the opaque/transparent transition of SN-PAAM dual-responsive ion-conducting hydrogel[95]. KPS: Potassium persulfate; TMEDA: tetramethylethylenediamine; CS/P(AA-co-AAm)/MXene@PEI: Chitosan/poly(acrylic acid-co-acrylamide)/MXene@polyethyleneimine; SN-PAAM: sodium dodecyl sulfate-modified poly(acrylamide) hydrogel.
