Weiwei Zhao,a Hua Wang,b Haimang Wang,a Ying Han,a Zhibo Zheng,c Xudong Liu,d Bin Feng*e and Hongyu Zhang*a
a State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
b Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
c Department of International Medical Services, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
d Medical Science Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
e Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China