FIGURE 1.
Chip microfabrication and cell seeding. (A) Top and (B) side views of the sequential steps for microfabrication and cell seeding: (1) Collagen was poured on top of the tungsten wires placed in a micromold and maintained by PCR tape. (2) Wires were removed. At this stage an additional coating could be applied. (3) Cells were seeded in tubes, and (4) colonized it in a few days.