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Collagen hydrogel preparation and constituents loaded in the hydrogel.
Notes: The cone-shaped hydrogel is fabricated in a PDMS frame by thermal curing (A). The characteristics of biomolecules and nanoparticles loaded in the hydrogel system are shown (B).
Abbreviations: TGF-β1, transforming growth factor-beta1; PMDS, polydimethylsiloxane mold; FITC, fluorescein isothiocyanate; QD, quantum dots; CT, computed tomography; TaO, tantalum oxide.
