1. Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
2. Division of Molecular Pharmaceutics and
Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
3. School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210000, Jiangsu China
4. Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
5. Department of Medicine, University of North Carolina School of Medicine, Chapel
Hill, North Carolina 27599, United States