About the Authors
Center for BioOptical Nanotechnology, The Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona, United States of America
Howard Hughes Medical Institute, Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JS JC JA. Performed the experiments: JC MS MR MW. Analyzed the data: JC MW JA. Wrote the paper: JS JC JA.