http://newscenter.berkeley.edu/2013/05/30/scientists- capture-first-images-of-molecules-before-and-after-reaction/ http://zientziakultura.com/2013/05/30/ primera-imagen-de-una-molecula-organica-durante-una-reaccion/ — 
“The single-atom tip of the noncontact atomic force microscope “feels” changes in the strength of electronic forces as it moves across the surface at a constant height. Resulting movements of the stylus are detected by a laser beam to compute images. Credit: Lawrence Berkeley National Laboratory and University of California at Berkeley”
http://phys.org/news/2013-05-first-ever-high-resolution-images-molecule-reforms.html
