Table 2. Respective Sample Designs for the Workflow of Material Development and Sample Characterization Steps in This Project.
| sample design | max. dimension | AM hardwarea | anatomical shape | experiments/analysis | |
|---|---|---|---|---|---|
| ink printability tests | square, 2 layers | 10 mm | BS | light microscopy | |
| precharacterization | small | cylinder d = 14 mm, z = 30 mm | BS | T1, T2 ink vs gel | |
| Car/Agar/GdCl3 impact | |||||
| long-term stability T1, T2 (25 months) | |||||
| microstructure, GdCl3 distribution | disk | cylinder: d = 12 mm, z = 7 mm | BS | SEM/EDX | |
| monophasic anthropomorphic phantoms | GM/WM slab | 57 mm × 39 mm × 11 mm (x, y, z) | BS | GM/WM combined/fused | T1, T2 |
| biphasic anthropomorphic phantoms | GM/WM slab | 57 mm × 39 mm × 11 mm (x, y, z) | BS | GM/WM defined | T1, T2 |
| upscaling demonstrators monophasic | brain | 97 mm × 90 mm × 44 mm | SC | height stability (100 days) | |
| upscaling demonstrators bi(tri)phasic | GM/WM brain + CSF | 95 mm × 60 mm × 55 mm + 350 mL 10 mM CaCl2 | SC | T1, T2 |
a
BS = BioScaffolder 3.1; SC = Stepcraft machine, customized.