Freitas interests include
nanorobotics, how nanotechnology can extend the life of humans,
self-replicating machines, and
cryonics. In 1980, Freitas and William Gilbreath were participants in a NASA study regarding "Advanced Automation for Space Missions," and presented the feasibility of self-replicating machines in space, using advanced artificial intelligence and automation technologies. Freitas began writing his
Nanomedicine book series in 1994. Volume I was published in October 1999 by
Landes Bioscience while Freitas was a Research Fellow at the Institute for Molecular Manufacturing. Volume IIA was published in October 2003 by Landes Bioscience. In 2004, Freitas and
Ralph Merkle coauthored and published
Kinematic Self-Replicating Machines, a comprehensive survey of the field of physical and hypothetical
self-replicating machines. In 2009, Freitas was awarded the
Feynman Prize in theoretical
nanotechnology. Afterwards, he was granted the first patent for a
mechanosynthesis tool, which he developed while working at
Zyvex. The tool is theoretically to be used in
molecular engineering. == See also ==