1. Nanoscience and Nanoengineering, South Dakota School of Mines & Technology, 501 East St. Joseph Street, Rapid City, South Dakota 57701, United States, Biosciences Center, National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401, United States, and Bioenergy Science Center, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, United States