Ron Weiss and other scientists at Princeton have managed to program bacteria via their genetic code to assemble into complex shapes on instruction.

The researchers programmed E. coli bacteria to emit red or green fluorescent light in response to a signal emitted from another set of E. coli. The living cells were commanded to make a bull's-eye pattern, for example, around central cells based on communication between the bacteria.

- Scientists Make Bacteria Behave Like Computers
- Ron Weiss

[Via. Future Feeder]