About the Authors

Xian Li

Affiliations Bioengineering College, Chongqing University, Chongqing, China, Department of Bioengineering, University of California, Berkeley, California, United States of America

Julia Chu

Affiliation Department of Bioengineering, University of California, Berkeley, California, United States of America

Aijun Wang

Affiliation Department of Bioengineering, University of California, Berkeley, California, United States of America

Yiqian Zhu

Affiliation Department of Bioengineering, University of California, Berkeley, California, United States of America

Wai Keung Chu

Affiliation Department of Bioengineering, University of California San Diego, La Jolla, California, United States of America

Li Yang

yanglicqu@gmail.com (LY); song_li@berkeley.edu (SL)

Affiliation Bioengineering College, Chongqing University, Chongqing, China

Song Li

yanglicqu@gmail.com (LY); song_li@berkeley.edu (SL)

Affiliation Department of Bioengineering, University of California, Berkeley, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XL LY SL. Performed the experiments: XL JC. Analyzed the data: XL SL. Contributed reagents/materials/analysis tools: AW AKC YZ. Wrote the paper: XL SL.