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Physical characteristics of the Optimaix-3D scaffold: (a) pore size distribution was determined with the ImageJ software. (N = 4, n = 5). (b) The stiffness of the scaffold was measured with the help of a Zwick material testing machine (N = 4, n = 3). (c) Representative fluorescent microscopic picture of the pore structure in the Optimaix-3D scaffold. For visualization Optimaix-3D scaffolds were stained with SRB. (d) Microscopic image of the scaffold colonized with PHHs.
