Serum protein adsorption on macroporous scaffolds with different pore wall surface architectures. (A) PLLA scaffolds phase separated in different solvents: Nano - nanofibrous, phase separated in THF at -20°C; Micro-(-196 C) - microporous, phase separated in dioxane in liquid nitrogen; Micro-(-20°C) - microporous, phase separated in dioxane at -20°C; Solid - solid-walled, generated by solvent evaporation from the polymer solution in dichloromethane; (B) PLLA/PDLLA partially nanofibrous scaffolds with different PLLA wt% in polymer blends, phase-separated in THF at -20°C.