About the Authors
Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, California, United States of America
Chemistry Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
The authors have declared that no competing interests exist.
SLS and JFB conceived and designed the experiments. SLS, GD, VJD, and JFB performed the experiments. SLS, GD, VJD, DSAG, and JFB analyzed the data. MPT contributed reagents/materials/analysis tools. SLS, VJD, and JFB wrote the paper.