Figure legends
Figure 1 X-ray CT imaging setup. a Three mounted gyroids before whole body scanning. b 3D printed material cut-out adhered to the top of a pinhead and sample holder. cMagnified image of the interface between sample (left) and sample-holding pinhead (right).
Figure 2 Whole gyroid design and imaging at a 5 µm pixel size.a overhead CAD view with 500 µm feature sizes. boverhead CAD view with 300 µm feature sizes. c overhead CAD view with 200 µm feature sizes. d overhead X-ray CT view of 3D printed gyroid with 500 µm feature sizes. e overhead X-ray CT view of 3D printed gyroid with 300 µm feature sizes. f overhead X-ray CT view of 3D printed gyroid with 200 µm feature sizes.
Figure 3 Individual 500 µm unit comparison between designed and imaged volumes. a 3D render of internal unit imaged at a 2 µm pixel size. b Segmented material phase of imaged unit.c CAD design of an individual unit. d Design and imaged overlay.
Figure 4 Internal imaging at a 2 µm feature size. a500 µm feature size slice. b 300 µm feature size slice.c 200 µm feature size slice. d 500 µm feature size render. e 300 µm feature size render. f 200 µm feature size render.
Figure 5 Permeable flow simulation on internal gyroid subvolumes. a 500 µm feature size bulk flow analysis from top to bottom. b 300 µm feature size bulk flow analysis. c200 µm feature size bulk flow analysis. d 500 µm feature size permeable streamlines in red. e 300 µm feature size permeable streamlines. f 200 µm feature size permeable streamlines.
Figure 6 Gyroid nanoscale imaging. a 2D slice of an sample imaged at a 16 nm pixel size. 2D slice imaged at a 63 nm pixel size of equivalent size. b 2D slice of a sample imaged at a 63 nm pixel size, of equivalent area to 7a. c 2D slice of a sample imaged at a 63 nm pixel size d 3D render of a sample imaged at a 63 nm pixel size.
Figure 7 Internal diffusion visualization. a Bulk diffusivity flow analysis from top to bottom plane. b Diffusive streamlines from top to bottom plane.
Figure 8 Pore size characterization at a 63 nm pixel size.a Pore network mapping. b Pore size distribution.