1. Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, Max-Volmer Laboratorium für Biophysikalische Chemie, Institut für Chemie, Fakultät 2, Technische Universität Berlin, D-10623 Berlin, Germany, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona...