Greg Mitchell received his PhD in Synthetic Organometallic Chemistry with Prof. T. Don Tilley at the University of California, Berkeley in 1998.  After two years of postdoctoral work at Northwestern University with Prof. Chad Mirkin, he accepted a position with DuPont Central Research and Development in Wilmington, Delaware.  His work there focused on the assembly and characterization of nanoscale electronic devices.  In April 2005, Dr. Mitchell transferred to DuPont Titanium Technologies to work at the white pigments plant in New Johnsonville, TN supervising a group of Chemists and Chemical Engineers in the new product and process development.