DEC 06, 2021 2:00 PM PST

Solar-Powered Robots That Could Clean Up Oil Spills

WRITTEN BY: Ryan Vingum

Oil spills at sea can be a devastating consequence of offshore drilling for fossil fuels. They can affect local plants and animals, and wreak havoc in ecosystems. Oil spills range in size, some small, some large, like the Exxon Valdez Oil Spill and the Deepwater Horizon spill. As a result of numerous oil spills, the National Oceanic and Atmospheric Association estimates that there have been about 44 spills of more than 420,000 gallons of oil since 1969.

And these spills continue to happen in the ocean. As a result, numerous clean up methods exist, including the use of oil booms to contain the spills (if the affected area hasn’t gotten too big) and skimmers to try “skimming” oil off the water’s surface. The problem, however, is that these methods require significant amounts of hands-on labor. 

A new solar powered robot prototype may, in the future, reduce the need for human labor and be able to clean oil spills in more remote areas.

Described in a recent paper in Science Robotics, researchers have developed solar-powered bots (called Neusbots, in reference to neuston organisms that float on water) that are designed to float on top of ocean water and reach more remote ocean areas. Hydrophobic and designed with a high degree of tolerance to salt, the bots can survive for long stretches of time in the open ocean. Neusbots are specifically designed with a high degree of controllability powered by mechanical oscillation: “There aren’t many methods to achieve this controllable movement using light. We solved the problem with a tri-layer film that behaves like a steam engine,” Zhiwei Li explained. 

The steam engine metaphor indicates that the Neusbots are powered very similarly to early train engines, only with light as the source of their energy. The bots convert sunlight into heat that causes water to turn to vapor, creating the energy that the bots need to move. So, the light powers the bots, and water provides them the fuel to move. 

In addition to improving the bot’s precise mobility, researchers also plan to test the bot with additional material that could help it soak up oil from recent spills. 

Sources: Eureka Alert!; NOAA; Science Robotics  

About the Author
Master's (MA/MS/Other)
Science writer and editor, with a focus on simplifying complex information about health, medicine, technology, and clinical drug development for a general audience.
You May Also Like
DEC 15, 2022
Technology
How You Can Choose The Best Vpn For Privacy
How You Can Choose The Best Vpn For Privacy
When picking the best VPN provider, everyone looks for the one that matches their needs. But there are some points where ...
DEC 22, 2022
Technology
Handheld Device for Detecting Oral Cancer
Handheld Device for Detecting Oral Cancer
According the that National Cancer Institute, cancers of the oral cavity and pharynx are expected to have accounted for ...
DEC 22, 2022
Space & Astronomy
JWST's First Look at the TRAPPIST-1 System
JWST's First Look at the TRAPPIST-1 System
Last week, astronomers gathered at the Space Telescope Science Institute, the operations center for the James Webb Space ...
JAN 16, 2023
Technology
Researchers Develop Method to Create Large-Scale Quantum Processor Network
Researchers Develop Method to Create Large-Scale Quantum Processor Network
In a recent study published in Nature Physics, a team of researchers at the Massachusetts Institute of Technology have e ...
JAN 15, 2023
Space & Astronomy
JWST Reveals Dusty Disk in Attempt to Directly Image Exoplanets
JWST Reveals Dusty Disk in Attempt to Directly Image Exoplanets
A team of astronomers have been using the James Webb Space Telescope (JWST) to attempt to directly image exoplanets arou ...
JAN 22, 2023
Chemistry & Physics
Chemical-Biological Method Combined with Fungi Used to Convert Ocean Plastic Waste into Pharmaceuticals
Chemical-Biological Method Combined with Fungi Used to Convert Ocean Plastic Waste into Pharmaceuticals
According to a 2022 facts sheet, plastic waste in the ocean has grown to alarming rates, with approximately 51 trillion ...
Loading Comments...