Bioink characterization. Rheological and swelling data of GelMA/HAMA
and the SEM images of GelMA, HAMA, and GelMA/HAMA bioinks. (A) Flow
temperature ramp curve of viscosity vs temperature
of GelMA/HAMA from 50 to 5 °C, reversed with a constant frequency
of 1 Hz. (B) Frequency sweep curve of storage and loss moduli vs angular frequency of GelMA/HAMA with a constant sheer
rate of s–1. (C) Temperature ramp of GelMA/HAMA
under oscillation conditions from 50 to 5 °C and reversed curve
of storage modulus (full line) and loss modulus (dashed line) vs temperature of GelMA/HAMA with a constant sheer rate
of 1 s–1. (D) Swelling data of casting GelMA/HAMA
(n = 6) weights over a 35 day period. Box and whisker
plots show the median, 25th, and 75th percentile values for the number
of reads per sample, with whiskers indicating the maximum and minimum.
Graph on a logarithmic scale with an initial weight of 0.33 g. (E–G)
SEM images of GelMA, HAMA, and GelMA/HAMA, taken at either ×100
(top) or ×1000 (bottom) magnification.