A swarm of tiny nanorobots could be used to treat bleeds in the brain caused by aneurysms, opening “new frontiers in medicine”, scientists say.
Researchers have already trialled the technology on rabbits, which were injected with billions of magnetic nanobots made of blood-clotting drugs.
The nanobots, which are each around a twentieth of the size of a red blood cell, are made of three parts: a magnetic core known as an iron oxide nanoparticle, which is known to be safe for medical uses and which allows the nanorobots to be remotely guided to the right spot; a clotting drug agent called thrombin to block the aneurysm; and a protective coating that prevents the thrombin from being released in the wrong area.
Researchers guided the bots to the site of the aneurysm, a blood-filled bulge that can rupture and cause fatal bleeds, strokes or disabilities, and heated them to melt their coating, releasing the drug at the exact point it could prevent or stem bleeding.
Dr Qi Zhou of the University of Edinburgh’s School of Engineering, who co-led the study, told The National: "The nanorobots are essentially dissolved in the process and become part of the formed thrombus, which should gradually shrink in size due to blood supply cut-off, and be captured by immune cells for clean-up and natural healing."
He said nanorobots are set to open "new frontiers in medicine", potentially allowing us to carry out surgical repairs with fewer risks than conventional treatments and target drugs with pinpoint accuracy in hard-to-reach parts of the body.
The technology is likely to be in use in the coming decade.
"The next steps for us would be to test this technology in larger animals such as piglets or sheep for more comparable conditions to humans, with vessel networks and blood flow.
"We need to improve our control system for robust motion of the nanorobots to reach aneurysms located deeper in the brain. It is also important to make sure this treatment is safe and effective for the body in the long term through more preclinical studies. There is more work to be done, but we believe this technology has the potential to revolutionise the way we treat brain aneurysms."
The study showed nanobots have the potential to transport drugs to precise locations without the risk of leaking into the bloodstream, a key test of the technology’s safety and efficiency, researchers said.
The bots could also reduce the need for implants in the treatment of brain aneurysms, such as coils or mesh tubes, known as stents, and curb reliance on anti-blood-clotting drugs, which can cause bleeding and stomach problems.
Aneurysms cause about 500,000 deaths globally each year and are treated by surgery which can take hours due to the need to navigate a complex network of small blood vessels in the brain.
The study, published in the nanoscience and nanotechnology journal Small, was led by a team from the UK and China.
The same team has also developed nanorobots to remove blood clots, which they said also showed their potential in the treatment of strokes.
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Killing of Qassem Suleimani
Company profile
Name: Thndr
Started: October 2020
Founders: Ahmad Hammouda and Seif Amr
Based: Cairo, Egypt
Sector: FinTech
Initial investment: pre-seed of $800,000
Funding stage: series A; $20 million
Investors: Tiger Global, Beco Capital, Prosus Ventures, Y Combinator, Global Ventures, Abdul Latif Jameel, Endure Capital, 4DX Ventures, Plus VC, Rabacap and MSA Capital
The specs: 2018 Mercedes-Benz E 300 Cabriolet
Price, base / as tested: Dh275,250 / Dh328,465
Engine: 2.0-litre four-cylinder
Power: 245hp @ 5,500rpm
Torque: 370Nm @ 1,300rpm
Transmission: Nine-speed automatic
Fuel consumption, combined: 7.0L / 100km
Five films to watch
Castle in the Sky (1986)
Grave of the Fireflies (1988)
Only Yesterday (1991)
Pom Poki (1994)
The Tale of Princess Kaguya (2013)
The Buckingham Murders
Starring: Kareena Kapoor Khan, Ash Tandon, Prabhleen Sandhu
Director: Hansal Mehta
Rating: 4 / 5
Real estate tokenisation project
Dubai launched the pilot phase of its real estate tokenisation project last month.
The initiative focuses on converting real estate assets into digital tokens recorded on blockchain technology and helps in streamlining the process of buying, selling and investing, the Dubai Land Department said.
Dubai’s real estate tokenisation market is projected to reach Dh60 billion ($16.33 billion) by 2033, representing 7 per cent of the emirate’s total property transactions, according to the DLD.
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SQUADS
UAE
Mohammed Naveed (captain), Mohamed Usman (vice-captain), Ashfaq Ahmed, Chirag Suri, Shaiman Anwar, Mohammed Boota, Ghulam Shabber, Imran Haider, Tahir Mughal, Amir Hayat, Zahoor Khan, Qadeer Ahmed, Fahad Nawaz, Abdul Shakoor, Sultan Ahmed, CP Rizwan
Nepal
Paras Khadka (captain), Gyanendra Malla, Dipendra Singh Airee, Pradeep Airee, Binod Bhandari, Avinash Bohara, Sundeep Jora, Sompal Kami, Karan KC, Rohit Paudel, Sandeep Lamichhane, Lalit Rajbanshi, Basant Regmi, Pawan Sarraf, Bhim Sharki, Aarif Sheikh
Benefits of first-time home buyers' scheme
- Priority access to new homes from participating developers
- Discounts on sales price of off-plan units
- Flexible payment plans from developers
- Mortgages with better interest rates, faster approval times and reduced fees
- DLD registration fee can be paid through banks or credit cards at zero interest rates
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Starring: Brad Pitt, Damson Idris, Kerry Condon, Javier Bardem
Director: Joseph Kosinski
Rating: 4/5
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Ferrari
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The specs
Engine: 2.0-litre 4cyl turbo
Power: 261hp at 5,500rpm
Torque: 405Nm at 1,750-3,500rpm
Transmission: 9-speed auto
Fuel consumption: 6.9L/100km
On sale: Now
Price: From Dh117,059
Company profile
Name: Tratok Portal
Founded: 2017
Based: UAE
Sector: Travel & tourism
Size: 36 employees
Funding: Privately funded
The%20specs%20
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The specs: Lamborghini Aventador SVJ
Price, base: Dh1,731,672
Engine: 6.5-litre V12
Gearbox: Seven-speed automatic
Power: 770hp @ 8,500rpm
Torque: 720Nm @ 6,750rpm
Fuel economy: 19.6L / 100km
The Sand Castle
Director: Matty Brown
Stars: Nadine Labaki, Ziad Bakri, Zain Al Rafeea, Riman Al Rafeea
Rating: 2.5/5
Company profile
Name: Steppi
Founders: Joe Franklin and Milos Savic
Launched: February 2020
Size: 10,000 users by the end of July and a goal of 200,000 users by the end of the year
Employees: Five
Based: Jumeirah Lakes Towers, Dubai
Financing stage: Two seed rounds – the first sourced from angel investors and the founders' personal savings
Second round raised Dh720,000 from silent investors in June this year
Astroworld
Travis Scott
Grand Hustle/Epic/Cactus Jack
Killing of Qassem Suleimani
The biog
Favourite book: Homegoing by Yaa Gyasi
Favourite holiday destination: Spain
Favourite film: Bohemian Rhapsody
Favourite place to visit in the UAE: The beach or Satwa
Children: Stepdaughter Tyler 27, daughter Quito 22 and son Dali 19
The smuggler
Eldarir had arrived at JFK in January 2020 with three suitcases, containing goods he valued at $300, when he was directed to a search area.
Officers found 41 gold artefacts among the bags, including amulets from a funerary set which prepared the deceased for the afterlife.
Also found was a cartouche of a Ptolemaic king on a relief that was originally part of a royal building or temple.
The largest single group of items found in Eldarir’s cases were 400 shabtis, or figurines.
Khouli conviction
Khouli smuggled items into the US by making false declarations to customs about the country of origin and value of the items.
According to Immigration and Customs Enforcement, he provided “false provenances which stated that [two] Egyptian antiquities were part of a collection assembled by Khouli's father in Israel in the 1960s” when in fact “Khouli acquired the Egyptian antiquities from other dealers”.
He was sentenced to one year of probation, six months of home confinement and 200 hours of community service in 2012 after admitting buying and smuggling Egyptian antiquities, including coffins, funerary boats and limestone figures.
For sale
A number of other items said to come from the collection of Ezeldeen Taha Eldarir are currently or recently for sale.
Their provenance is described in near identical terms as the British Museum shabti: bought from Salahaddin Sirmali, "authenticated and appraised" by Hossen Rashed, then imported to the US in 1948.
- An Egyptian Mummy mask dating from 700BC-30BC, is on offer for £11,807 ($15,275) online by a seller in Mexico
- A coffin lid dating back to 664BC-332BC was offered for sale by a Colorado-based art dealer, with a starting price of $65,000
- A shabti that was on sale through a Chicago-based coin dealer, dating from 1567BC-1085BC, is up for $1,950
