Graham Cliff obtained a degree in Physics and Electronic Engineering at the University of Manchester, after which he became a noted nanotechnologist in Materials Science from 1971. He developed the Cliff-Lorimer k factors for use with the analytical electron microscope (AEM). Material Scientists around the world now employ his Cliff-Lorimer k factors in AEM analysis. He has been an amateur astronomer since 1957, and is an Honorary Senior Research Fellow in the School of Earth, Atmospheric and Environmental Sciences at the University of Manchester.

Dr. Cliff has written extensively about the potential dangers of nanoparticles here and here.