Optogenetic skeletal muscle-powered adaptive biological machines
Author(s)
Raman, Ritu; Cvetkovic, Caroline; Sengupta, Parijat; Bashir, Rashid; Uzel, Sebastien GM; Platt, Randall Jeffrey; Kamm, Roger Dale; ... Show more Show less
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Complex biological systems sense, process, and respond to their surroundings in real time. The ability of such systems to adapt their behavioral response to suit a range of dynamic environmental signals motivates the use of biological materials for other engineering applications. As a step toward forward engineering biological machines (bio-bots) capable of nonnatural functional behaviors, we created a modular light-controlled skeletal muscle-powered bioactuator that can generate up to 300 µN (0.56 kPa) of active tension force in response to a noninvasive optical stimulus. When coupled to a 3D printed flexible bio-bot skeleton, these actuators drive directional locomotion (310 µm/s or 1.3 body lengths/min) and 2D rotational steering (2°/s) in a precisely targeted and controllable manner. The muscle actuators dynamically adapt to their surroundings by adjusting performance in response to “exercise” training stimuli. This demonstration sets the stage for developing multicellular bio-integrated machines and systems for a range of applications
Date issued
2016-03Department
Massachusetts Institute of Technology. Department of Biological Engineering; Massachusetts Institute of Technology. Department of Mechanical EngineeringJournal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
Raman, Ritu, Caroline Cvetkovic, Sebastien G. M. Uzel, Randall J. Platt, Parijat Sengupta, Roger D. Kamm, and Rashid Bashir. “Optogenetic Skeletal Muscle-Powered Adaptive Biological Machines.” Proc Natl Acad Sci USA 113, no. 13 (March 14, 2016): pp. 3497-3502. © 2016 National Academy of Sciences.
Version: Final published version
ISSN
0027-8424
1091-6490