Fig. 2

Characterization of the PLGA and RGD/PLGA nanofiber matrices. a FTIR and (b) Raman spectra of the PLGA matrices, RGD-M13 phages and RGD/PLGA nanofiber matrices. c Thermogravimetric analysis (TGA) curves of the PLGA and RGD/PLGA nanofiber matrices