Figure 3.

Mechanical properties of the fibers vs. the incubation time in the collection bath. (a) Strength (MPa); (b) Young’s modulus (GPa); (c) Strain at break (mm/mm); (d) toughness modulus (MJ m⁻³). Green indicates that the fibers dissolved and red that they stayed intact when submerged in either dH₂0 or PBS. Stars indicate that the differences were statisitically significant (p < 0.05). Depending on the typology, the following numbers of fibers were tested: 17 for 0 h, 6 for 1 h, 5 for 2 h, 34 for 6 h, 17 for 24 h, and 10 for 48 h. * indicates p < 0.05.