NanoInk, a developer of tools used to write with nanoscale “ink” for medical and security purposes, has raised a round of $12 million, according to VentureWire (subscription required).

The company appears to have raised a large amount to date. The Medill School of Journalism reported that it has taken $50 million, although that may or may not have included the current round.

NanoInk is based in the Chicago area, with an office in Campbell, Calif. It was founded in 2001.

Tags: ,