Figure 12.

Synthesis and characterization of NSHs based on hybrid crosslinking. a) Schematic illustration of preparing self‐reinforced DC BC hydrogels. ECH, epichlorohydrin. Adapted with permission.^{[ 198 ]} Copyright 2019, The Royal Society of Chemistry. b) Reaction sequence of pHEMA‐alginate hydrogels. c) Demonstration of high stiffness and toughness and d) in vivo swelling ratios of pHEMA‐alginate hydrogels with hydrogel implanted in rats for 7 and 21 days. MBAA, N,N′‑methylenebisacrylamide. Adapted with permission.^{[ 203 ]} Copyright 2018, Elsevier B.V.