1. Center for Nanotechnology in Drug Delivery and Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA
2. Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA
3. Department of Chemistry, Clemson University, Clemson, SC, 29634, USA
4. Laboratory of Chemical Design of Bionanomaterials, Faculty of Chemistry, M.V. Lomonosov Moscow State University, Moscow, 119992, Russia