1. Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, State Key Laboratory of Natural Medicines, Nanjing 210009, China
2. Department of Pharmaceutics, School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China
3. Department of Biosystems Science and Engineering, ETH Zurich, Basel 4058, Switzerland
4. Department of Chemistry, School of Pharmacy, China Pharmaceutical University, State Key Laboratory of Natural Medicines, Nanjing 210009, China