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(A, B) lyophilized and (C–E) reconstituted collagen scaffolds, (F) 1 g of stock CMC-PEG gel, (G) Medium without and (H) with 24× diluted CMC-PEG gel. Scaffolds were reconstituted in complete RPMI-1640 medium. Captured by (A, C, F–H) Samsung SM-A13F/DSN, (B) scanning electron microscope Tescan Mira 3, (D, E) EVOS FL microscope, transmission channel.
