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Schematic diagram of the preparation and application of hydrogels with fiber and microspherical morphologies. (a) Electron micrograph of ahigh-flux nanofiber-composite ultrafiltration membrane [98]. (b) Schematic diagram of the preparation and application of photocrosslinked GelMA-hydrogel microsphere [99]. (c) Enzyme-functionalized antiproteolytic-hydrogel microspheres were used for biocatalysis [100]. (d) Schematic diagram for preparation and application of ALP microcapsules [101].
