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Supercritical sterilization of 3D-printed alginate aerogels: (a) Images of sterile and dual crosslinked aerogel scaffolds seeded on TSB tubes after 24 h of culture. Optical and SEM images of sterile (st) and aged aerogel scaffolds: (b,c) Alg 6%, HA 8%, CaCl2 1M1h, st and (d,e) Alg 6%, HA 8%, CaCl2 1M1h, GA, st. Aerogels were observed at two different magnifications.
