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. 2017 Jan 23;8(2):1025–1035. doi: 10.1364/BOE.8.001025

Fig. 5.

Fig. 5

Raman spectra from PLGA nanofiber. (a) Schematic of PLGA fiber cross-section. Raman mapping was performed along the dashed arrow. (b) Optical image showing sample surface mapping recorded parallel to the fiber (indicated with an arrow). Image taken with 50x objective. The red line indicates the location of Raman scan. Scale, 5 µm. (c) Lateral profile confocal Raman scan showing polymer component contribution through the nanofiber. PLGA (red) and PGS (blue). (d) Schematic of PLGA fiber cross-section. Dashed arrow indicates where Raman mapping was performed. (e) Optical image showing sample surface mapping recorded perpendicular to the fiber (indicated with an arrow). Image taken with 50x objective. The red line indicates the location of Raman scan. Scale, 5µm. (f) Confocal Raman scan across the fiber showing polymer component contribution through the nanofiber. PLGA (red) and PGS (blue).