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Schematic of reaction pathway to prepare a sodium alginate (SA)-based double-network magnetic hydrogel. During the gelation of ammonium persulfate (APS) N,N,N′,N′-tetramethylethylenediamine (TEMED) and N,N′-methylenebis(acrylamide) (MBAA) were used as an activator and cross-linker, respectively [154] © 2021 American Chemical Society.
