1. Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
2. Department of Materials Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
3. Department of Wood Science, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
4. Department of Mechanical Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada