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(A) Stereomicroscopic photograph showing 3D printed wax mold and (B) HCCS-PDA scaffolds after wax mold removed. Pores were represented as square channels and scaffolds oriented at 90° among three layers. Pores extend from top to bottom layer. SEM images of interconnected pore surface morphology of scaffolds with pore sizes of (C) 250 and (D) 500 um. (E) Compression tests performed on 3D porous HCCS-PDA scaffolds. (n = 5, *p < 0.05).
