The bioelectronic scaffolds that Rutz and Okafor print appear as dark-colored dots about 6 millimeters in diameter -- about the size of a pencil eraser -- and are floating in water. Okafor has ...

The pores help to form a lattice-like structure that grows upward to support the cells. The researchers can also adjust the angle of the pores so that the grid lines are diagonal instead of vertic ...