1. Department of Chemical and Biological Engineering; University of Colorado; Boulder CO 80309 USA
2. Department of Mechanical Engineering; University of Colorado; Boulder CO 80309 USA
3. Material Science and Engineering Program; University of Colorado; Boulder CO 80309 USA
4. Washington University Orthopedics; Washington University; St. Louis MO 63110 USA
5. Department of Electrical, Computing and Energy Engineering; Material Science and Engineering Program; University of Colorado; Boulder CO 80309 USA
6. Department of Mechanical Engineering; Material Science and Engineering Program; BioFrontiers Institute; University of Colorado; Boulder CO 80309 USA
7. Department of Chemical and Biological Engineering; Material Science and Engineering Program; BioFrontiers Institute; University of Colorado; Boulder CO 80309 USA