Fig. 1.
Method for super-aligned nanofiber (SANF) construct fabrication by RJS. (A) Schematic for RJS fabrication of SANFs. (B) Photograph of collecting SANF constructs from the reservoir. (C) Photographic image of SANF constructs produced by RJS. (D, E) Scanning electron micrograph of SANF constructs in panel C showing fiber alignment from cm to nm scale. Scale bar for (D): 100 μm. Scale bar for (E): 10 μm. (F) Fiber diameter distribution of PCL and PCL/protein hybrid SANF constructs (N = 8 samples with 8 fields of view per sample, * = statistical significant difference at p < 0.05; box plot: 25–75%, error bars: 10–90%). (G) Orientation order parameter of PCL and PCL/protein hybrid SANF constructs (N = 9 different samples with 8 fields of view per sample, * = statistical significant difference at p < 0.05; box plot: 25–75%, error bars: 10–90%). (H) Pearson's analysis demonstrating significant negative correlation between fiber diameter and orientation order parameter (N > 8). (I) Representative electron micrographs of the SANF constructs demonstrating smaller fibers stretched across the principal fiber direction in samples with higher protein concentration. (Scale bars: Ii – 2 μm; Iii – 10 μm; Iiii – 20 μm; Iiv – 10 μm; Iv – 10 μm).