1. Key
Laboratory of Drug Targeting and Drug Delivery System of Ministry
of Education, West China School of Pharmacy, Sichuan University, Sichuan 610041, China
2. Laboratory
of Biotherapy and Cancer Center, West China Hospital, West China Medical
School, Sichuan University, Sichuan 610041, China
3. College
of Food and Bioengineering, Xihua University, Sichuan 610039, China
4. Department
of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom