Targeted delivery to joints of the rheumatoid arthritis drug betulin using folic acid-coated nanoparticles based on human serum albumin.

Lingling Yang, Yan Lin, Lanxing Zhang, Zhenzhen He, Jiaxin Li, Yan Wang, Chunhan Li, Zheyu Shuai, Xie Tan, Shihua Fu, Changguang Wang, Zhongbing Liu, Xingjie Du, Xiaoduan Sun, Zhirong Zhong