Fig. 1.

Fibrous gelatin production by immersion rotary jet spinning (iRJS). a Schematic (i) and photo (ii) of iRJS fiber production. The schematic shows a precursor solution fed into an open-top rotating reservoir. The solution is extruded through small orifices in the reservoir wall into a precipitation bath where fibers are collected on a rotating cylindrical collector. b Removal of gelatin fibers from the iRJS collector following a 10-min production run; scale bar is 10 cm. c Peeling fibrous gelatin; scale bar is 1 cm. d Freeze-dried fibrous gelatin; scale bar is 1 cm, bottom panel shows scanning electron microscope image; scale bar is 50 μm