The groundbreaking development came from researchers at the University of Tokyo and Waseda University in Japan. They created the biohybrid hand, a fusion of lab-grown muscle tissue and mechanical engineering. This innovation paves the way for a new generation of robotics with diverse applications.
Biohybrid hand (scientific robotics) (Kurt “Cyberguy” Knutsson)
Bridging biology and robots
Soft robots and advanced prosthetics are becoming more and more common, but the combination of living tissue and machinery remains relatively rare. The Biohybrid Science field is in its early stages, with only a few cases, including artificial fish that drive human heart cells and artificial fish that use locust ears for hearing. This new biohybrid hand represents an important advance in the implementation of this technology.
Biohybrid hand (scientific robotics) (Kurt “Cyberguy” Knutsson)
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Secret Ingredients: Mumta
So, how did they do that? The team started by growing muscle fiber in the lab. Recognizing that these sensitive tissues are not strong enough in themselves, they put them together into what they call “multiple tissue actuators” or mumtas. “Our important achievement was the development of Mumta,” said Takeuchi Castle of the University of Tokyo.
Takeuchi is a co-author of a study that explains the creation published in the journal. Science robot. Shoji explained that creating Mumutas is an important achievement. By rolling thin chains of muscle tissue like sushi rolls, they ensured sufficient contraction force and length to drive hand movement.
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Biohybrid hand (scientific robotics) (Kurt “Cyberguy” Knutsson)
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Like a real hand
One of the most notable findings is that biohybrid hands experienced fatigue like real human hands. After 10 minutes of use, tissue strength decreased, but recovered within 1 hour of rest. This observation highlights the realistic properties of the designed muscular tissue.
Biohybrid hand (scientific robotics) (Kurt “Cyberguy” Knutsson)
Challenges and future directions
Takeuchi and his team acknowledge that their creation is now a proof of concept. During the study, floating hands into the liquid to minimize friction and adding elasticity or more mumta solved the issue of segments returning to neutral position after bend. However, by bundling the tissues together, we overcome a major hurdle to the scale of biohybrid devices. Previously, such devices were limited to about 1 cm in size.
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Biohybrid hand (scientific robotics) (Kurt “Cyberguy” Knutsson)
Possibility
Mumta's development marks an important milestone in mimicking biological systems. This requires an increase in size. Although the field of Biohybrid Robotics is still young, this technology could revolutionize advanced prostheses. It could also serve as a valuable tool to help understand muscle tissue function, test surgical procedures, and develop drugs targeting muscle tissue.
Important takeouts for your cart
Biohybrid hands are an incredible achievement that combines biology with engineering. Although it is still in its early stages, this technology gives us a glimpse into the future where robots have realistic movement and responsiveness. The development of mumta has overcome important hurdles and paves the way for a deeper understanding of advanced prosthetics and muscular tissue function.
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