Quote:
The scientists started with a mesh of silicon wires coated in an organic polymer, each 30 to 80 nanometers in diameter. The mesh is three-dimensional, like a sponge, and can be bent into any shape. Next, the scientists seeded the mesh with living cells that were grown in a culture. The result was living cells with a three-dimensional mechanical support able to carry electrical signals. While two-dimensional scaffolds have been made before, those don't replicate what happens in the human body, where cells are in three-dimensional structures.
Source










