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International Journal of Bioprinting                               Semi-solid extrusion for pediatric medicine




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                    Long drying times can increase the risk of   Freeze-drying creates a porous network accessible to  water; hydration of the dosage form produces a thick gel,  enabling longer active pharmaceutical ingredient (API)  The drying step follows an ionic crosslinking step  Drying is necessary for the evaporation of acetone  Three drying conditions were tested: 70°C for 12 h, 40°C  for 16h, and 37°C for 24 h; 37°C for 24 h demonstrated  the easiest removal from









                 Commentaries  recrystallization  release                prevent humidity uptake







                                        Until obtaining a constant weight









                 Time     Overnight  20 h  24 h  48 h  6 h  Overnight  Overnight  24 h  48 h  12 h  24 h  No data  4 h  2 h  24 h  2.5 h  12 h








                 Temperature  -80°C  -80°C  Room temperature  Room temperature  Room temperature  Room temperature  Room temperature  Room temperature  Room temperature  19.2 ± 0.9°C  Ambient temperature  37°C  55°C (i) Oven-dried at 50°C for 4 h; then stored in the desiccator at 20°C for 24 h or refrigerated at 4°C for 72 h  50°C  80°C  50°C  40°C  40°C









             Table 2. Drying conditions  Drying method  (i) Air-dried at 22.2°C for 48 h (ii) Freeze-drying at -80°C for 15 min; 15 h vacuum  Freeze-drying  Air-dried  Oven-dried  (ii) Oven-dried at 50°C for 24 h  Oven-dried  Oven-dried  Vacuum oven drying  Ventilated oven-dried  (i) Air-dried at room temperature (ii) Microwave 200 W for 15 min (iii) Microwave 300 W for 10 min (iv) Microwave 400 W for 5 min (v) Oven-dried at 40°C for 7 h (vi) Vacuum drying at room tempera













            Volume 10 Issue 6 (2024)                        53                                doi: 10.36922/ijb.4063
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