1. Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, California 94720, United States
2. Department of Chemistry, University of California, Berkeley, California 94720, United States
3. Advanced Biofuels and Bioproducts Process Development Unit, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
4. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. CIFAR Azrieli Global Scholars Program, 661 University Avenue, Toronto, ON M5G 1M1, Canada