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The chemical structure of crosslinking strategy that has been used between gelatin and oxidized dextran (Dex-Ald) that involved the nucleophilic reaction of aldehydes on the oxidized dextran and addition of amines nucleophiles to the gelatin, which causes crosslinking in a pH dependent manner. Reproduced from Reproduced from Du et al. [19], with permission from Royal Society of Chemistry, 2019.
