By simulating jellyfish movement with artificial muscles, the robots can safely kick up ocean trash for recycling.
explains, HASELs are ostensibly electrode-covered sacs filled with oils. When the electrodes receive a small current—in this case, about 100 mW—they become positively charged, then safely discharge the current into the negatively charged water around them. Alternating this current forces the oil in the sacs to move back and forth, thus making the actuators flap in a way that generates momentum to move trash particles upward. From there, humans or other gathering tools can scoop up the detritus.
“When a jellyfish swims upwards, it can trap objects along its path as it creates currents around its body,” study author and postdoc in the MPI-IS Physical Intelligence Department Tianlu Wang explainedWang went on to describe how their robot similarly circulates water around it. “This function is useful in collecting objects such as waste particles,” Wang adds. “It can then transport the litter to the surface, where it can later be recycled.
The biggest drawback at the moment is simply the fact that a controlled Jellyfish-Bot still requires a wired connection for power, thus hampering its scope. Although researchers have been able to incorporate battery and wireless communications modules into the robots, the untethered versions cannot currently be directed in a desired path. Still, it’s easy to envision future iterations of the Jellyfish-Bot clearing this relatively small hurdle.
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Jellyfish-inspired robot can gently remove ocean waste without harming marine lifeThis jellyfish-inspired robot quietly does its job without creating any unnecessary noise that could disturb sensitive marine creatures that rely on sound to communicate.
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