About the Authors
- Arturo A. Keller
- University of California Center on the Environmental Implications of Nanotechnology and Bren School of Environmental Science and Management, University of California Santa Barbara, Santa Barbara, California, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SWB DZ AAK. Performed the experiments: SWB DZ RM. Analyzed the data: SWB DZ AAK. Contributed reagents/materials/analysis tools: AAK. Wrote the paper: SWB DZ AAK.