1. Department
of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
2. Department
of Biochemistry and Molecular Biology, Drug Discovery Division, Southern Research, Birmingham, Alabama 35205, United States
3. U.S. Army Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois 61826, United States
4. Center
for Nanoscale Materials and Biointegration, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States