1. Institute for Sustainability, Energy, and Environment, University of Illinois Urbana-Champaign, 1101 W. Peabody Drive, Urbana, IL 61801, USA
2. DOE Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois Urbana-Champaign, 1206 W. Gregory Drive, Urbana, IL 61801, USA
3. Department of Civil and Environmental Engineering, 3221 Newmark Civil Engineering Laboratory, University of Illinois Urbana-Champaign, 205 N. Mathews Avenue, Urbana, IL 61801, USA
4. Department of Bioengineering, Stanford University, 129 Shriram Center, 443 Via Ortega, Stanford, California 94305, USA
5. Department of Civil and Environmental Engineering, Stanford University, 311 Y2E2, 473 Via Ortega, Stanford, California 94305, USA
6. Department of Chemical Engineering, Stanford University, 129 Shriram Center, 443 Via Ortega, Stanford, California 94305, USA