Soft bio-hybrid actuators are robotic devices that integrate living muscle tissues, enabling them to perform movements more efficiently and biologically compatible compared to traditional rigid mechanical components.
They address the limitations of current robotic systems that often rely on rigid mechanical parts and motors, which can be less energy-efficient and biocompatible compared to natural muscle tissue.
These actuators use lab-grown skeletal muscle cells which are stimulated by electrical pulses. The muscles contract in response to these stimuli, generating force for movement similar to how biological muscles function in living organisms.
The manufacturing process involves growing muscle cells in a lab setting, integrating them with flexible substrates or polymers, and then connecting these tissues to electronic interfaces for stimulation.
Cells are typically grown on biocompatible scaffolds using cell culture techniques. The actuator design includes both the biological component (muscle tissue) and the electronic interface needed for control and stimulation.
Field units draw low hundreds of watts; fabrication is energy-intensive due to vacuum baking processes required for growing cells and integrating them into the device.
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