Fig. 2From: Fabrication and characterization of metformin-loaded PLGA/Collagen nanofibers for modulation of macrophage polarization for tissue engineering and regenerative medicineFE-SEM images and corresponding diameter distribution for PLGA (A), PLGA/Col (B), 5% MET- PLGA/Col (C) and 15% PLGA/Col (D) electrospun fibers, respectivelyBack to article page