PASADENA, Calif.--(BUSINESS WIRE)--Sept. 7, 2006--Arrowhead Research Corporation (Nasdaq:ARWR) announced today that R. Bruce Stewart, Chairman has been selected to present at the ThinkEquity Partners Growth Conference in San Francisco on September 11 at 10:30 am. Mr. Stewart’s presentation entitled “Nanotech: Here and Now” will highlight Arrowhead’s progress in commercializing nanotechnology applications in the areas of nanomedicine and nanoelectronics. Mr. Stewart will also describe how Arrowhead’s unique business model is addressing opportunities in nanotechnology.