1. Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
2. Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California 90095, USA
3. Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, USA
4. Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, California 90095, USA
5. Center for Biological Physics, Jonsson Comprehensive Cancer Center, and Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, California 90095, USA