1. Interdisciplinary Biomedical Research Centre, School of Science and
Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K.
2. Department of Chemical and Process Engineering, University of Strathclyde, 75 Montrose Street, Glasgow
G1 1XJ, U.K.
3. Department of
Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, United States
4. Materials and Manufacturing Directorate, Air Force
Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States
5. Unité POLY, Université Catholique de Louvain, Boltzmann A+2, Croix du Sud, 1, B-1348, Louvain-la-Neuve, Belgium