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(A) Compressive stress curve of composite bracket (n = 3). (B)Young's modulus of composite scaffold (n = 3). (C, D) Water absorption and porosity of scaffolds (n = 3). (E) SEM micrographs of the lyophilized GelMA10%/PEGDA2.5%. (e1)200×. (e2)400×. (F) Cytotoxicity test of different concentrations of scaffolds. ***p < 0.001, **p < 0.01, *p < 0.05.
