Speedy biohybrid jellyfish are part-gelatinous, part-machine


If you want to collect data on climate change from the deep sea, why not hitchhike to creatures that are submerged in the deep sea? That led to the birth of “biohybrid jellyfish,” which have multiple bodies packed together instead of one. It’s a connected way of thinking. two Acceleration technology.

Cyborg Jelly is being developed by a team at the California Institute of Technology (California Institute of Technology) led by Professor John Dabiri.

He has previously brought us jellyfish-inspired flexible pumps, artificial jellyfish made of heart tissue and silicone, and pacemaker-like devices that allow jellyfish to swim three times faster than normal. He continues to play with these creatures.

This final gizmo was developed as part of a project in which scientists at Caltech and Stanford University were looking at ways to use jellyfish to collect climate change-related data such as temperature, salinity, and oxygen levels from the deep ocean. it was done.

Multiple exposures of a biohybrid jellyfish swimming head-first through a vertical aquarium used in research
Multiple exposures of a biohybrid jellyfish swimming head-first through a vertical aquarium used in research

California Institute of Technology

Since jellyfish naturally move up and down the water column throughout the day, it makes sense to equip them with data-recording sensors that can be acquired at the surface. That would be much cheaper and easier than making a completely robotic jellyfish. However, there was a problem in that the jelly swam too slowly to be of practical use.

This is where a pacemaker came in handy. This small device was hooked to the animal’s underside and sent electrical pulses that increased the speed of the pulsations the jellyfish used to propel itself forward. As a result, their swimming speed increased by about 2 to 6 centimeters (0.8 to 2.4 inches) per second.

That being said, even faster would be better.

With this fact in mind, Dabiri and graduate student Simon Anuszczyk 3D printed a “forebody” that attaches to the top of the jellyfish’s body. These streamlined devices reduce hydrodynamic drag, have neutral buoyancy (the jelly neither sinks nor rises), and have the potential to serve as housings for sensors and other electronics.

The total hardware cost for each biohybrid jellyfish is approximately 20 USD
The total hardware cost for each biohybrid jellyfish is approximately 20 USD

California Institute of Technology

The experiment, conducted in a unique vertical aquarium with a vertical flow of water, tested jellyfish equipped with both a pacemaker and a pacemaker. and It was found that the proboscis swims up to 4.5 times faster than a natural jellyfish carrying the same weight of cargo.

Scientists are currently developing voltage-resistant electronics and also hope to be able to control the biohybrid jellyfish remotely. Then you’ll be able to do more than just go straight up and down. And while the whole thing probably sounds a little cruel, Dabiri has at least given some consideration to the jellyfish’s welfare.

“Jellyfish are the original ocean explorers, reaching their deepest depths and thriving in tropical and polar waters alike,” he says. “Because they do not have a brain or the ability to sense pain, we were able to work with bioethicists to develop this biohybrid robotic application in a manner grounded in ethical principles.”

A paper on the research was recently published in a journal Bioinspiration and biomimetics. You can see the bionic jelly in action in the following video.

robot jellyfish explorer

Source: California Institute of Technology





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