Sample morphology was evaluated through a series of images, obtained from a VHX-7000 Keyence microscope, Sony Alpha 7 III full-frame camera, and Apreo 2 scanning electron microscopy (SEM) from Thermofisher. The mechanical behavior was determined with tensile testing (Tytron 250, MTS Systems) using a 250 kN load cell under displacement control (n = 4 samples of each material and treatment). Stress was calculated as the tensile force over the cross-sectional area of the tubes using the measured fiber diameter.