via Cornell University
Swimmers Heal on the Move Following Catastrophic Damage
Living tissue can heal itself from many injuries, but giving similar abilities to artificial systems, such as robots, has been extremely challenging. Now, researchers reporting in ACS’ Nano Letters have developed small, swimming robots that can magnetically heal themselves on-the-fly after breaking into two or three pieces. The strategy could someday be used to make hardier devices for environmental or industrial clean up, the researchers say.
Scientists have developed small robots that can “swim” through fluids and carry out useful functions, such as cleaning up the environment, delivering drugs and performing surgery. Although most experiments have been done in the lab, eventually these tiny machines would be released into harsh environments, where they could become damaged. Swimming robots are often made of brittle polymers or soft hydrogels, which can easily crack or tear. Joseph Wang and colleagues wanted to design swimmers that could heal themselves while in motion, without help from humans or other external triggers.
The researchers made swimmers that were 2 cm long (about the width of a human finger) in the shape of a fish that contained a conductive bottom layer; a rigid, hydrophobic middle layer; and an upper strip of aligned, strongly magnetic microparticles. The team added platinum to the tail, which reacted with hydrogen peroxide fuel to form oxygen bubbles that propelled the robot. When the researchers placed a swimmer in a petri dish filled with a weak hydrogen peroxide solution, it moved around the edge of the dish. Then, they cut the swimmer with a blade, and the tail kept traveling around until it approached the rest of the body, reforming the fish shape through a strong magnetic interaction. The robots could also heal themselves when cut into three pieces, or when the magnetic strip was placed in different configurations. The versatile, fast and simple self-healing strategy could be an important step toward on-the-fly repair for small-scale swimmers and robots, the researchers say.
Original Article: Small robot swimmers that heal themselves from damage
The Latest Updates from Bing News & Google News
Go deeper with Bing News on:
- This robot fish can 'eat' microplastics in seas
A robot fish has been developed in China to address microplastic pollution in the world's oceans. The fish is only 1.3 cm long, but it can suck plastics 52,000 times heavier than it is as it swims ...
- AI Ethics And That Viral Story Of The Chess Playing Robot That Broke The Finger Of A Seven-Year-Old During A Heated...
AI Ethics issues arise in a recent viral news story about a young boy playing tournament chess that got his finger broken by a chess playing robotic arm.
- Fish-Shaped Robots Clean Microplastics from the Ocean
As mentioned before, the material also is self-healing, which means that any cuts to the robot’s skin would fix themselves while retaining its microplastic-absorbing capability, researchers said. “The ...
- Scientists claim to have built a robot they describe as 'self-aware'
A team of U.S.-based scientists is claiming to have developed an artificial intelligence that has achieved a degree of self-awareness — an accomplishment that, if true, would indicate a major leap ...
- Graphene heals itself, powers our dreams and nightmares
Thankfully, we're no where near self-healing robots. But, the discovery could lead to a simple method for molding it into almost any shape. Once pierced, the form of the mend is determined by the ...
Go deeper with Google Headlines on:
Go deeper with Bing News on:
- Primal: Adult Swim Starts 24/7 Channel For Series
You can dive into the never-ending stream for Adult Swim's Primal here, with the website also having similar streams for some of their biggest franchises including the likes of Rick And Morty, The ...
- Self-repairing fish robot brings hope to plastic crisis
Chinese scientists have developed a fish-shaped light-actuated swimming robot that can "eat" microplastics in water bodies and repair itself if damaged. This ...
- Amazon Shoppers 'Can't Believe' How Well This Robotic Pool Cleaner Works—and It's on Sale
The Aiper Cordless Robot Pool Cleaner picks up dirt, leaves, and even sand from pool floors up to 538 square feet. The best-selling cleaner has dual suction motors and two brushes to efficiently clean ...
- Cash backing for grain-swimming sensor robot
GRAIN storage robot 'Crover' has won £366,000 in innovation funding under the Defra Farming Innovation Programme from UK Research and Innovation.
- Plastic pollution: With floating robots and bubble barriers, pioneers try to stem the tide
The stretch of ocean between Hawaii and California is teeming with life. Turtles bearing eggs to lay on the shore swim alongside dolphins playing in pods as Hawaiian monk seals twist and dive beyond ...