1. Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, 02150 Espoo, P.O. Box 15100, Aalto FI-00076, Finland
2. Department of Chemistry, Furman University, Greenville, South Carolina 29613, United States
3. Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, P.O.
Box 16000, Aalto FI-00076, Finland