Figure 3
From: Study of 3D-printed chitosan scaffold features after different post-printing gelation processes
Re-hydration profile of 3D CH-based scaffolds previously de-hydrated at different percentages and left in water as a function of time. Scaffolds were gelled in (A) KOH (1.5M), (B) Na2CO3 (1.5M), (C) NH3(g) (from 28% ammonia solution) and exposed to vacuum oven at 40 °C at different times to obtain the desired lost percentage of water, namely 30% (cross), 45% (solid triangle), 60% (solid square) or 85% (solid circle) of initial water weight.
