soft robot detects damage, heals itself
Researchers installed SHeaLDS—self-healing light guides for dynamic sensing—in a soft robot resembling a four-legged starfish and equipped with feedback control. After the researchers punctured one of its legs, the robot was able to detect the damage and self-heal the cuts. Credit: Cornell University

Cornell University engineers have created a soft robot capable of detecting when and where it was damaged—and then healing itself on the spot.

“Our lab is always trying to make robots more enduring and agile, so they operate longer with more capabilities,” said Rob Shepherd, associate professor of mechanical and aerospace engineering. “If you make robots operate for a long time, they’re going to accumulate damage. And so how can we allow them to repair or deal with that damage?”

Shepherd’s Organic Robotics Lab has developed stretchable fiber-optic sensors for use in soft robots and related components—from skin to wearable technology. They report on their work in Science Advances.

For self-healing to work, Shepherd says the key first step is that the robot must be able to identify that there is, in fact, something that needs to be fixed.

To do this, researchers have pioneered a technique using fiber-optic sensors coupled with LED lights capable of detecting minute changes on the surface of the robot. These sensors are combined with a polyurethane urea elastomer that incorporates hydrogen bonds, for rapid healing, and disulfide exchanges, for strength.

The resulting SHeaLDS—self-healing light guides for dynamic sensing—provides a damage-resistant soft robot that can self-heal from cuts at room temperature without any external intervention.

To demonstrate the technology, the researchers installed the SHeaLDS in a soft robot resembling a four-legged starfish and equipped it with feedback control. Researchers then punctured one of its legs six times, after which the robot was then able to detect the damage and self-heal each cut in about a minute. The robot could also autonomously adapt its gait based on the damage it sensed.

While the material is sturdy, it is not indestructible.

“They have similar properties to human flesh,” Shepherd said. “You don’t heal well from burning, or from things with acid or heat, because that will change the chemical properties. But we can do a good job of healing from cuts.”

Shepherd plans to integrate SHeaLDS with machine learning algorithms capable of recognizing tactile events to eventually create “a very enduring robot that has a self-healing skin but uses the same skin to feel its environment to be able to do more tasks.” More information: Hedan Bai et al, Autonomous self-healing optical sensors for damage intelligent soft-bodied systems, Science Advances (2022). DOI: 10.1126/sciadv.abq2104 Journal information: Science Advances

Provided by Cornell University Citation: Soft robot detects damage, heals itself (2022, December 7) retrieved 7 December 2022 from https://techxplore.com/news/2022-12-soft-robot.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

TECH NEWS RELATED

TikTok EU ban on the table if social network doesn’t comply with new laws

TikTok is one of the most popular social networks out there. But TikTok is also a cause of concern for western governments that worry about the company’s ties to the Chinese government. TikTok can’t run on most devices the US government issues, and there has been talk of a ...

View more: TikTok EU ban on the table if social network doesn’t comply with new laws

Don’t Buy a Foldable Until Samsung Brings This Prototype to Life

Samsung Display via The Verge The world of foldable phones is surprisingly stagnant. The Galaxy Z Fold gets a tiny little upgrade every year, and rival phone brands loosely copy Samsung’s homework. But a new Samsung Display prototype called the “Flex In & Out” could turn this narrative on ...

View more: Don’t Buy a Foldable Until Samsung Brings This Prototype to Life

Best free sports streaming apps in 2023

Cutting the cord on cable television is something tons of people have done over the past five years. But that hasn’t proven to be the smartest way to continue to watch sports. Whether it comes from premium sports website subscriptions to keep tabs on your favorite players, or even fantasy ...

View more: Best free sports streaming apps in 2023

Avengers 5 might have Ant-Man in it, Quantumania star teases

The first MCU Phase 5 movie will be Ant-Man and the Wasp: Quantumania, the third installment in the Ant-Man franchise and a film with much higher stakes than the previous episodes. The sequel will deliver the MCU’s first Kang (Jonathan Majors) villain after we met a somewhat good He Who ...

View more: Avengers 5 might have Ant-Man in it, Quantumania star teases

Sharing a Netflix Account? Get Ready to Pay For It

DANIEL CONSTANTE/Shutterstock.com Netflix is about to get serious in its efforts to eliminate freeloaders. If you share a Netflix account with family or friends outside your household, get ready to pay for it. A new “paid sharing” system could roll out starting next month, and you’ll have to pay a ...

View more: Sharing a Netflix Account? Get Ready to Pay For It

‘7 Wonders’ Board Game Gets a New ‘Edifice’ Expansion

Asmodee and Repos Production Board game lovers have a wonderful reason to celebrate today. Board game makers Asmodee and Repos Production announced their latest collaboration: 7 Wonders Edifice, an expansion to the popular board game 7 Wonders. The game launches on February 24th for $29.99. 7 Wonders: Edifice adds ...

View more: ‘7 Wonders’ Board Game Gets a New ‘Edifice’ Expansion

T-Mobile Kicks Off 2023 With Another Data Breach

r.classen / Shutterstock.com In a press release, T-Mobile confirms that it detected a data breach in its systems on January 5th. A “bad actor” managed to steal personal information (but not financial data) from around 37 million customers. This is the eighth T-Mobile data breach since 2018. The hacker ...

View more: T-Mobile Kicks Off 2023 With Another Data Breach

Apple appeals to UK competition watchdog investigation about mobile browser dominance

Apple has filed an appeal against the UK’s competition watchdog regarding its dominance of mobile browsers in the cloud gaming market, reports Reuters. The Competition and Markets Authority started investigating this dominance by the Cupertino firm and Google. Lawyers representing Apple believe the investigation should be reviewed as CMA ...

View more: Apple appeals to UK competition watchdog investigation about mobile browser dominance

Galaxy S23 Ultra release date and specs leak finally reveals everything about the new model

WhatsApp for iOS rolling out the ability to create a chat with yourself

Amazon Prime Music Unlimited changes streaming prices, now matches Apple Music

Deadpool 3 and Secret Wars to feature Fox’s X-Men, according to Marvel insider

Report: OLED iPad Pro still on track for 2024 release, 2026 for MacBook Pro

How to negotiate over practically anything

HomePod 2 praised in exclusive hands-on before launch

M2 Pro MacBook Pro Amazon preorder deal gives you $50 off

What “choice” means for millions of women post-Roe

Singapore FinTech firm Pilon secures $5.2M seed funding led by Wavemaker Partners

Capital Square Partners and Basil Technology team up for $700M tech fund in Asia

This feel-good movie about man’s best friend is dominating Netflix

OTHER TECH NEWS

Top Car News Car News