Shape-shifting robots inspired by sea cucumbers can rapidly change between liquid and solid, offering the possibilities of breakthrough treatments in medicine, new research shows.
The miniature robots could be used in surgery and might change the face of engineering, researchers said.
Traditional robots are hard-bodied and stiff, while “soft” robots have so far been flexible but weak, and difficult to control.
The sea cucumber can transform itself from solid into a liquid. They liquefy at will to pour their bodies into tight spaces and solidify again to hide from predators.
“Giving robots the ability to switch between liquid and solid states endows them with more functionality,” said Chengfeng Pan, an engineer at the Chinese University of Hong Kong, who led the study.
Researchers put their robots through an obstacle course of mobility and shape-morphing tests in a study, which was published on Wednesday in the journal Matter.
The team created a new material — called the “magnetoactive solid-liquid phase transitional machine” — by embedding magnetic particles in gallium, a metal with a very low melting point of 29.8°C.
They have also tested the material’s mobility and strength in a variety of contexts.
The robots jumped over moats, climbed walls and split in half to co-operatively move other objects around before joining back together.
In one video, a robot shaped like a person liquefies to ooze through a grid before reforming.
“Now, we’re pushing this material system in more practical ways to solve some very specific medical and engineering problems,” Mr Pan said.
On the biomedical side, the team used the robots to remove a foreign object from a model stomach and to deliver drugs on-demand into stomach.
They also demonstrate how soldering robots can ooze into hard-to-reach circuits and the can be a mechanical “screw” for assembling parts in hard-to-reach spaces.
“Future work should further explore how these robots could be used within a biomedical context,” said senior author and mechanical engineer Carmel Majidi of Carnegie Mellon University.
“What we're showing are just one-off demonstrations, proofs of concept, but much more study will be required to delve into how this could actually be used for drug delivery or for removing foreign objects.”
MATCH INFO
Uefa Champions League final:
Who: Real Madrid v Liverpool
Where: NSC Olimpiyskiy Stadium, Kiev, Ukraine
When: Saturday, May 26, 10.45pm (UAE)
TV: Match on BeIN Sports
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World record transfers
1. Kylian Mbappe - to Real Madrid in 2017/18 - €180 million (Dh770.4m - if a deal goes through)
2. Paul Pogba - to Manchester United in 2016/17 - €105m
3. Gareth Bale - to Real Madrid in 2013/14 - €101m
4. Cristiano Ronaldo - to Real Madrid in 2009/10 - €94m
5. Gonzalo Higuain - to Juventus in 2016/17 - €90m
6. Neymar - to Barcelona in 2013/14 - €88.2m
7. Romelu Lukaku - to Manchester United in 2017/18 - €84.7m
8. Luis Suarez - to Barcelona in 2014/15 - €81.72m
9. Angel di Maria - to Manchester United in 2014/15 - €75m
10. James Rodriguez - to Real Madrid in 2014/15 - €75m
Some of Darwish's last words
"They see their tomorrows slipping out of their reach. And though it seems to them that everything outside this reality is heaven, yet they do not want to go to that heaven. They stay, because they are afflicted with hope." - Mahmoud Darwish, to attendees of the Palestine Festival of Literature, 2008
His life in brief: Born in a village near Galilee, he lived in exile for most of his life and started writing poetry after high school. He was arrested several times by Israel for what were deemed to be inciteful poems. Most of his work focused on the love and yearning for his homeland, and he was regarded the Palestinian poet of resistance. Over the course of his life, he published more than 30 poetry collections and books of prose, with his work translated into more than 20 languages. Many of his poems were set to music by Arab composers, most significantly Marcel Khalife. Darwish died on August 9, 2008 after undergoing heart surgery in the United States. He was later buried in Ramallah where a shrine was erected in his honour.
MATCH INFO
Syria v Australia
2018 World Cup qualifying: Asia fourth round play-off first leg
Venue: Hang Jebat Stadium (Malacca, Malayisa)
Kick-off: Thursday, 4.30pm (UAE)
Watch: beIN Sports HD
* Second leg in Australia scheduled for October 10
Bookshops: A Reader's History by Jorge Carrión (translated from the Spanish by Peter Bush),
Biblioasis
What vitamins do we know are beneficial for living in the UAE
Vitamin D: Highly relevant in the UAE due to limited sun exposure; supports bone health, immunity and mood.
Vitamin B12: Important for nerve health and energy production, especially for vegetarians, vegans and individuals with absorption issues.
Iron: Useful only when deficiency or anaemia is confirmed; helps reduce fatigue and support immunity.
Omega-3 (EPA/DHA): Supports heart health and reduces inflammation, especially for those who consume little fish.
MIDWAY
Produced: Lionsgate Films, Shanghai Ryui Entertainment, Street Light Entertainment
Directed: Roland Emmerich
Cast: Ed Skrein, Woody Harrelson, Dennis Quaid, Aaron Eckhart, Luke Evans, Nick Jonas, Mandy Moore, Darren Criss
Rating: 3.5/5 stars
The specs
Engine: 3.8-litre twin-turbo V8
Power: 611bhp
Torque: 620Nm
Transmission: seven-speed automatic
Price: upon application
On sale: now
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ULTRA PROCESSED FOODS
- Carbonated drinks, sweet or savoury packaged snacks, confectionery, mass-produced packaged breads and buns
- margarines and spreads; cookies, biscuits, pastries, cakes, and cake mixes, breakfast cereals, cereal and energy bars;
- energy drinks, milk drinks, fruit yoghurts and fruit drinks, cocoa drinks, meat and chicken extracts and instant sauces
- infant formulas and follow-on milks, health and slimming products such as powdered or fortified meal and dish substitutes,
- many ready-to-heat products including pre-prepared pies and pasta and pizza dishes, poultry and fish nuggets and sticks, sausages, burgers, hot dogs, and other reconstituted meat products, powdered and packaged instant soups, noodles and desserts.
Medicus AI
Started: 2016
Founder(s): Dr Baher Al Hakim, Dr Nadine Nehme and Makram Saleh
Based: Vienna, Austria; started in Dubai
Sector: Health Tech
Staff: 119
Funding: €7.7 million (Dh31m)
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Desert Warrior
Starring: Anthony Mackie, Aiysha Hart, Ben Kingsley
Director: Rupert Wyatt
Rating: 3/5
If%20you%20go
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Labour dispute
The insured employee may still file an ILOE claim even if a labour dispute is ongoing post termination, but the insurer may suspend or reject payment, until the courts resolve the dispute, especially if the reason for termination is contested. The outcome of the labour court proceedings can directly affect eligibility.
- Abdullah Ishnaneh, Partner, BSA Law
MATCH INFO
Uefa Champions League semi-finals, second leg:
Liverpool (0) v Barcelona (3), Tuesday, 11pm UAE
Game is on BeIN Sports
The specs
Engine: 4.0-litre V8 twin-turbocharged and three electric motors
Power: Combined output 920hp
Torque: 730Nm at 4,000-7,000rpm
Transmission: 8-speed dual-clutch automatic
Fuel consumption: 11.2L/100km
On sale: Now, deliveries expected later in 2025
Price: expected to start at Dh1,432,000