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Cross-sectional SEM micrographs of polymerized bioinks loaded with lisinopril and spironolactone. (A) Lyophilized lisinopril-loaded hydrogel (40 mg/mL) with a WHANB of 3% and a rratio of 0.6. This bioink was exposed to a TL of 2 min. (B) Polymerized hydrophobic ink loaded with spironolactone (20 mg/mL). This formulation contained a WPEGDA of 20% and a TL of 1 min.
