Fig. 3
From: Fabrication of biodegradable drug-eluting scaffolds by two-photon polymerization

SEM image of a scaffold fabricated with the biodegradable material without an added drug before (a) and after (b) the dissolution test.
From: Fabrication of biodegradable drug-eluting scaffolds by two-photon polymerization

SEM image of a scaffold fabricated with the biodegradable material without an added drug before (a) and after (b) the dissolution test.