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.”
Primera Liga fixtures (all times UAE: 4 GMT)
Friday
Real Sociedad v Villarreal (10.15pm)
Real Betis v Celta Vigo (midnight)
Saturday
Alaves v Barcelona (8.15pm)
Levante v Deportivo La Coruna (10.15pm)
Girona v Malaga (10.15pm)
Las Palmas v Atletico Madrid (12.15am)
Sunday
Espanyol v Leganes (8.15pm)
Eibar v Athletic Bilbao (8.15pm)
Getafe v Sevilla (10.15pm)
Real Madrid v Valencia (10.15pm)
Mumbai Indians 213/6 (20 ov)
Royal Challengers Bangalore 167/8 (20 ov)
It Was Just an Accident
Director: Jafar Panahi
Stars: Vahid Mobasseri, Mariam Afshari, Ebrahim Azizi, Hadis Pakbaten, Majid Panahi, Mohamad Ali Elyasmehr
Rating: 4/5
Killing of Qassem Suleimani
Global state-owned investor ranking by size
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UAE
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Kill%20
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The specs
Engine: 4.0-litre flat-six
Torque: 450Nm at 6,100rpm
Transmission: 7-speed PDK auto or 6-speed manual
Fuel economy, combined: 13.8L/100km
On sale: Available to order now
GAC GS8 Specs
Engine: 2.0-litre 4cyl turbo
Power: 248hp at 5,200rpm
Torque: 400Nm at 1,750-4,000rpm
Transmission: 8-speed auto
Fuel consumption: 9.1L/100km
On sale: Now
Price: From Dh149,900
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
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Price: expected to start at Dh1,432,000
Results
2.15pm: Maiden (PA) Dh40,000 1,200m
Winner: Maqam, Fabrice Veron (jockey), Eric Lemartinel (trainer).
2.45pm: Maiden (PA) Dh40,000 1,200m
Winner: Mamia Al Reef, Szczepan Mazur, Ibrahim Al Hadhrami.
3.15pm: Handicap (PA) Dh40,000 2,000m
Winner: Jaahiz, Fabrice Veron, Eric Lemartinel.
3.45pm: Handicap (PA) Dh40,000 1,000m
Winner: Qanoon, Szczepan Mazur, Irfan Ellahi.
4.15pm: Sheikh Hamdan bin Rashid Cup Handicap (TB) Dh200,000 1,700m.
Winner: Philosopher, Tadhg O’Shea, Salem bin Ghadayer.
54.45pm: Handicap (PA) Dh40,000 1,700m
Winner: Jap Al Yassoob, Fernando Jara, Irfan Ellahi.
COMPANY%20PROFILE
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Abu Dhabi GP schedule
Friday: First practice - 1pm; Second practice - 5pm
Saturday: Final practice - 2pm; Qualifying - 5pm
Sunday: Etihad Airways Abu Dhabi Grand Prix (55 laps) - 5.10pm
Classification of skills
A worker is categorised as skilled by the MOHRE based on nine levels given in the International Standard Classification of Occupations (ISCO) issued by the International Labour Organisation.
A skilled worker would be someone at a professional level (levels 1 – 5) which includes managers, professionals, technicians and associate professionals, clerical support workers, and service and sales workers.
The worker must also have an attested educational certificate higher than secondary or an equivalent certification, and earn a monthly salary of at least Dh4,000.
A list of the animal rescue organisations in the UAE
Ferrari 12Cilindri specs
Engine: naturally aspirated 6.5-liter V12
Power: 819hp
Torque: 678Nm at 7,250rpm
Price: From Dh1,700,000
Available: Now
Syria squad
Goalkeepers: Ibrahim Alma, Mahmoud Al Youssef, Ahmad Madania.
Defenders: Ahmad Al Salih, Moayad Ajan, Jehad Al Baour, Omar Midani, Amro Jenyat, Hussein Jwayed, Nadim Sabagh, Abdul Malek Anezan.
Midfielders: Mahmoud Al Mawas, Mohammed Osman, Osama Omari, Tamer Haj Mohamad, Ahmad Ashkar, Youssef Kalfa, Zaher Midani, Khaled Al Mobayed, Fahd Youssef.
Forwards: Omar Khribin, Omar Al Somah, Mardik Mardikian.
KILLING OF QASSEM SULEIMANI
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Sharjah Wanderers 20-25 Dubai Tigers (After extra-time)
Wanderers
Tries Gormley, Penalty
Cons Flaherty
Pens Flaherty 2
Tigers
Tries O’Donnell, Gibbons, Kelly
Cons Caldwell 2
Pens Caldwell, Cross
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