About the Authors

Saiqun Zhang

Affiliation Institutes for Advanced Interdisciplinary Research, East China Normal University, Shanghai, China

Yuguang Mu

Affiliation School of Biological Sciences, Nanyang Technological University, Singapore

John Z. H. Zhang

Affiliations State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China, Department of Chemistry, New York University, New York, New York, United States of America

Weixin Xu

wxxu@sat.ecnu.edu.cn

Affiliations Institutes for Advanced Interdisciplinary Research, East China Normal University, Shanghai, China, State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YGM WX JZ. Performed the experiments: SZ WX. Analyzed the data: SZ WX. Contributed reagents/materials/analysis tools: YGM JZ. Wrote the paper: SZ WX.