Fig 4. Analysis of fiber diameter after treatment or after 1, 2.5, or 7 days of degradation in PBS.

No significant differences were observed between any groups at any time point, or with respect to time. The only trend observed was in the DTA fibers, which were consistently smaller than all other groups at every time point. These results suggest surface erosion of the fibers did not significantly alter fiber diameter after degradation over a 7-day period.