Fig. 4
From: Fabrication of biodegradable drug-eluting scaffolds by two-photon polymerization
SEM images of scaffolds. Non-degradable material with 0 % (a) 1 % (b) and 5 % (c) of the drug added and biodegradable material with 0 % (d) 1 % (e) and 5 % (f) of the drug added.
