[1] Univ Connecticut, Dept Chem, Mat Sci & Engn Program, Storrs, CT 06269 USA
[2] Univ Connecticut, Dept Mat, Mat Sci & Engn Program, Storrs, CT USA
[3] Univ Connecticut, Dept Biomol Engn, Mat Sci & Engn Program, Storrs, CT USA
[4] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW, Australia