1. Laboratory of Renewable Nanomaterials, School of Forest Resources, University of Maine, Nutting Hall, Orono, Maine 04469-5755, United States
2. Advanced Structures and Composites Center, University of Maine, 35 Flagstaff Road, Orono, Maine 04469-5755, United States
3. Department of Chemical and Biomedical Engineering, University of Maine, Orono, Maine 04469-5755, United States
4. Graduate School of Biomedical Science and Engineering, University of Maine, Orono, Maine 04469-5755, United States
5. USDA Forest Products Laboratory, 1 Gifford Pinchot Drive, Madison, Wisconsin 53726, United States