About the Authors

Zhongxing Mai

Affiliation School of Life Sciences and Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, People's Republic of China

Haiyan Liu

hyliu@ustc.edu.cn

Affiliation School of Life Sciences and Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZM HL. Performed the experiments: ZM. Analyzed the data: ZM HL. Contributed reagents/materials/analysis tools: ZM HL. Wrote the paper: ZM HL.