(a) Fourier transform infrared spectroscopy of electrospun PGA scaffold, the composite scaffold without PEO (PGA –PEO), the composite PGA scaffold with PEO prior to removal (PGA +PEO), and electrosprayed PEO scaffold only. The peaks noted with the dotted lines are characteristic of PEO. (b) TGA thermal curve comparing electrospun scaffold with PGA alone, PGA plus PEO microparticle, and PGA minus PEO microparticle. (c) Stress–strain curve for electrospun PGA alone, PGA plus PEO microparticle, and PGA minus PEO microparticle