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Cometh the cyborg: Improved integration of living muscles into robots
The team first constructed a robot skeleton on which to install the pair of functioning muscles. This included a rotatable joint, anchors where the muscles could attach, and electrodes to provide the stimulus to induce muscle contraction. For the living muscle part of the robot, rather than extract and use a muscle that had fully formed in the body, the team built one from scratch. For this, they used hydrogel sheets containing muscle precursor cells called myoblasts, holes to attach these sheets to the robot skeleton anchors, and stripes to encourage the muscle fibers to form in an aligned manner.
"Once we had built the muscles, we successfully used them as antagonistic pairs in the robot, with one contracting and the other expanding, just like in the body," study corresponding author Shoji Takeuchi says. "The fact that they were exerting opposing forces on each other stopped them shrinking and deteriorating, like in previous studies."
The team also tested the robots in different applications, including having one pick up and place a ring, and having two robots work in unison to pick up a square frame. The results showed that the robots could perform these tasks well, with activation of the muscles leading to flexing of a finger-like protuberance at the end of the robot by around 90°.
Also at National Geographic.
Biohybrid robot powered by an antagonistic pair of skeletal muscle tissues (open, DOI: 10.1126/scirobotics.aat4440) (DX)
(Score: 3, Funny) by Phoenix666 on Saturday June 02 2018, @12:43PM (2 children)
This research is exciting. I have long dreamed of having an extra pair of arms to make it easier to work on stuff.
But will the robotic muscles come pre-maximized, or will I have to add an extra round of curls to my workout?
Washington DC delenda est.
(Score: 2) by Thexalon on Saturday June 02 2018, @03:49PM (1 child)
Why stop at a pair of arms? Why not make it 4 really flexible arms, like this [wikipedia.org]?
The only thing that stops a bad guy with a compiler is a good guy with a compiler.
(Score: 2) by Phoenix666 on Saturday June 02 2018, @09:31PM
"Why not?" I'll tell you why not: Doc Oc proved that excessive numbers of robotic tentacles cannot be controlled--they control you.
Washington DC delenda est.