Freitas, Robert A. Jr.
Senior Research Fellow, Institute for Molecular Manufacturing; wrote Nanomedicine Vol. 1, 2, first book-length technical treatment of medical nanorobotics; Molecular Assemblers and Nanofactories.
http://www.rfreitas.com/

Nanorobotics Control Design and 3D Simulation
A collection of papers on control and simulation of nanorobotics for biomedical and other applications.
http://www.nanorobotdesign.com/