Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China.|National Laboratory of Biomacromolecules, CAS Center for excellence in biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.|National Laboratory of Biomacromolecules, CAS Center for excellence in biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.|National Laboratory of Biomacromolecules, CAS Center for excellence in biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.|School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, China.|School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, China.|Division of Rheumatology, Immunology and Allergy, Brigham and Womens Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, United States of America.|School of Biological Sciences, Nanyang Technological University, Singapore.|Division of Rheumatology, Immunology and Allergy, Brigham and Womens Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, United States of America.|School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, China.|National Laboratory of Biomacromolecules, CAS Center for excellence in biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.|Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China.