About the Authors

Sarah Sundelacruz

Affiliation Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, United States of America

Michael Levin

Affiliation Biology Department, and Tufts Center for Regenerative and Developmental Biology, Tufts University, Medford, Massachusetts, United States of America

David L. Kaplan

david.kaplan@tufts.edu

Affiliation Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SS ML DLK. Performed the experiments: SS. Analyzed the data: SS. Contributed reagents/materials/analysis tools: DLK. Wrote the paper: SS ML.