“…86,87 Due to their excellent biocompatibility and biodegradability, these materials have good application prospects in drug delivery. Synthetic polymers are polymers made from organic reagents through physical and chemical reactions, including PEGDA, 88 polyvinylpyrrolidone (PVP), 89 polyvinyl alcohol (PVA), 90–92 polylactic acid (PLA), 93,94 polylactic glycolic acid copolymer (PLGA), 95 and various natural polymers amidated by methacrylic anhydride, such as gelatin methacryloyl (GelMA), HAMA, dextran methacryloyl (DexMA), silk fibroin methacryloyl (SilMA), carboxymethyl chitosan methacryloyl (CMCSMA), 96 and carboxymethyl cellulose methacryloyl (CMCMA). 97…”