Sunday, August 18, 2019
facebook


Researchers develop new technique to make cancer treatment more effective, affordable
Photo for representation only.

Researchers develop new technique to make cancer treatment more effective, affordable

17 Aug 2019 | 4:05 PM

LONDON: A pioneering new technique that could make light-based cancer treatment more effective and safer for patients, while reducing its cost, has been developed by researchers from a British university.

[ + read story ]

LONDON

A pioneering new technique that could make light-based cancer treatment more effective and safer for patients, while reducing its cost, has been developed by researchers from a British university.

Light-based or photodynamic therapy is already a clinically-approved treatment, which uses drugs that only work when exposed to light to destroy cancer cells. However, many of these drugs are frequently toxic even without light, causing many side effects in patients and leading to treatment failure.

The study carried out by Jose Ricardo Aguilar Cosme, a PhD student at the University of Sheffield, and overseen by an interdisciplinary team of researchers from the varsity's Department of Materials Science and Engineering and Department of Oncology and Metabolism, has developed tiny carbon nanoparticles that can deliver cancer drugs to tumours, the university said in a release on Saturday.

The researchers have sought to improve these drugs by using small carbon dots as a way to get the drug to the tumour. 

Carbon dots are fluorescent nanoparticles with very little toxicity, making them extremely useful for this application. These nanoparticles were made using common ingredients such as sucrose and citric acid, which occur naturally in various fruits.

Two different versions of the carbon dots were developed as part of the research, one with the drug bound on the surface and the other where the drug was inside the dot. 

"When the drug was bound to the surface of a carbon dot it was four times less toxic without light while maintaining its cancer-killing effect in a lab model of melanoma skin cancer. This increases the overall effectiveness of the drug," said Frederik Claeyssens, who supervised the research. 

"An additional advantage of the carbon dots is that they glow, also known as fluorescence, which makes them very simple to locate. We observed that the particles rapidly enter tumour cells and their fluorescence makes it simple to monitor how they move round the body and how they accumulate in tumours," he said. 

Helen Bryant, who also supervised the research, said the research has the potential to produce cheaper anticancer drugs with greater efficiency to kill tumours and less side-effects in patients. — PTI 

Twitter to remove spam, abuse from your Direct Message inbox

Twitter to remove spam, abuse from your Direct Message inbox

17 Aug 2019 | 1:48 PM

SAN FRANCISCO: Micro-blogging platform Twitter is testing a new feature to filter spam and abusive messages from your Direct Message (DM) inbox.

Jupiter still reeling from head-on collision 4.5bn years ago

Jupiter still reeling from head-on collision 4.5bn years ago

17 Aug 2019 | 11:57 AM

NEW YORK: A colossal, head-on collision between Jupiter and a still-forming planet in the early solar system, about 4.5 billion years ago, has left Jupiter's core less dense and more extended that expected, say researchers.

July 2019 hottest month on record: NOAA

July 2019 hottest month on record: NOAA

16 Aug 2019 | 5:58 PM

WASHINGTON: July 2019 was the hottest month ever recorded globally, according to the US National Oceanic and Atmospheric Administration (NOAA).

Plastic particles falling out of sky with snow

Plastic particles falling out of sky with snow

16 Aug 2019 | 5:34 PM

BERLIN: Microscopic particles of plastic are falling out of the sky with snow, even in remote regions such as the Arctic and the Alps, according to a study.

Google 'Password Checkup' to be built into Chrome

Google 'Password Checkup' to be built into Chrome

16 Aug 2019 | 5:01 PM

SAN FRANCISCO: The leak detection feature of Password Checkup, which checks if a user's password is compromised and alerts the users by a drop-down menu box, would become a default feature of Google Chrome browser instead of remaining an optional extension.

Are Siri, Alexa making us less polite to fellow humans?

Are Siri, Alexa making us less polite to fellow humans?

16 Aug 2019 | 3:55 PM

SAN FRANCISCO: Contrary to popular perception, talking to digital assistants like Siri, Alexa and Google Assistant have not yet not made users ruder to other people, says a study.

Jupiter was smacked on its side by a protoplanet ten times Earth's mass, study argues

Jupiter was smacked on its side by a protoplanet ten times Earth's mass, study argues

16 Aug 2019 | 3:03 PM

WASHINGTON: Jupiter, the solar system's largest planet, may have been smacked head-on by an embryonic planet 10 times Earth's mass not long after being formed, a monumental crash with apparent lasting effects on the Jovian core, scientists said on Thursday.

‘Smart’ clothing can boost wearable tech

‘Smart’ clothing can boost wearable tech

15 Aug 2019 | 3:16 PM

SINGAPORE: Researchers in Singapore have invented ‘smart’ clothing they say can boost signals and save battery life on wireless devices such as headphones and smart watches.

Twitter launches Ashoka Chakra emoji for 73rd Independence Day

Twitter launches Ashoka Chakra emoji for 73rd Independence Day

14 Aug 2019 | 5:18 PM

NEW DELHI: Ahead of India's 73rd Independence Day on August 15, Twitter on Wednesday launched a customised Independence Day emoji of the Ashoka Chakra.

Building city on Mars could cost up to $10 trillion: Elon Musk

Building city on Mars could cost up to $10 trillion: Elon Musk

14 Aug 2019 | 1:20 PM

SAN FRANCISCO: SpaceX CEO Elon Musk has not stopped at lofty talks of colonising Mars. He has even estimated the cost of having a self-sustaining civilization on the Red Planet which is "between $100 billion and $10 trillion".

WhatsApp brings ‘fingerprint’ lock feature to android with latest beta

WhatsApp brings ‘fingerprint’ lock feature to android with latest beta

14 Aug 2019 | 4:05 PM

SAN FRANCISCO: After introducing the screen lock feature for iOS beta users more than three months ago, WhatsApp has now started rolling out a similar feature called "Fingerprint lock" for Android beta users, the media reported.

Microsoft to turn your phone into hand-held gaming device

Microsoft to turn your phone into hand-held gaming device

12 Aug 2019 | 11:30 AM

SAN FRANCISCO: In an apparent bid to take on the popular Nintendo gaming Switch, a new Microsoft patent has revealed plans for controllers that would turn your smartphone into hand-held Xbox.

A remote-based app exposed thousands of vehicles to hackers

A remote-based app exposed thousands of vehicles to hackers

11 Aug 2019 | 2:09 PM

SAN FRANCISCO: A hacker who goes by the handle Jmaxxz has exposed a series of vulnerabilities in a remote-based automobile app that may have exposed around 60,000 cars to hackers.

Tardigrades — the ‘indestructible’ beings may be alive on Moon

Tardigrades — the ‘indestructible’ beings may be alive on Moon

10 Aug 2019 | 7:23 PM

WASHINGTON: There may be life on the Moon after all: virtually indestructible beings that can withstand extreme radiation, sizzling heat, the coldest temperatures of the universe, and decades without food.

NASA develops novel test to detect sleep loss

NASA develops novel test to detect sleep loss

09 Aug 2019 | 10:12 PM

NEW YORK: Just as it is possible to detect alcohol consumption, NASA has now developed a test to detect sleep loss in people by looking at a variety of components of human eye movements.

NASA's eye-movement test to detect sleep loss

NASA's eye-movement test to detect sleep loss

09 Aug 2019 | 4:48 PM

WASHINGTON: NASA has developed a test which uses a range of eye movements to detect acute sleep deprivation in people.

Marine heatwaves a bigger threat to coral reefs than thought

Marine heatwaves a bigger threat to coral reefs than thought

09 Aug 2019 | 4:41 PM

MELBOURNE: Marine heatwaves are a much bigger threat to coral reefs than previously thought, according to a study that reveals a previously unrecognised impact of climate change on reefs.

World's smallest stent developed by scientists

World's smallest stent developed by scientists

09 Aug 2019 | 2:43 PM

GENEVA: Scientists have created the world's smallest stent—40 times smaller than any produced to date.

Facebook offering ‘millions’ to publishers for news: Report

Facebook offering ‘millions’ to publishers for news: Report

09 Aug 2019 | 9:53 AM

SAN FRANCISCO: Social media giant Facebook is reportedly in talks with news publishers to offer “millions of dollars” for the rights to publish their material on its site.

How NASA plans to shield astronauts from radiation on moon

How NASA plans to shield astronauts from radiation on moon

08 Aug 2019 | 4:18 PM

WASHINGTON: As NASA plans to return astronauts to the moon and ultimately send humans to Mars, teams across the space agency are working to build solutions for protecting the travellers from harmful radiation.

Dark matter may be older than the Big Bang: Study

Dark matter may be older than the Big Bang: Study

08 Aug 2019 | 3:50 PM

WASHINGTON: The elusive dark matter, which is believed to make up about 80 per cent of the universe's mass, may have existed before the Big Bang, according to a study.

Google Pixel 4 may bring super smooth display: Report

Google Pixel 4 may bring super smooth display: Report

08 Aug 2019 | 2:56 PM

SAN FRANCISCO: A leak on Google's upcoming Pixel 4 and 4XL smartphones suggest that the devices could include a super smooth display with 90Hz refresh rate and 6GB RAM.

Scientists create world’s thinnest gold and it’s two atoms thick

Scientists create world’s thinnest gold and it’s two atoms thick

08 Aug 2019 | 12:42 PM

LONDON: Scientists have created the world's thinnest gold which is just two atoms thick or one million times leaner than a human finger nail.

Snapchat raising $1bn for filters, content, acquisitions

Snapchat raising $1bn for filters, content, acquisitions

07 Aug 2019 | 2:14 PM

SAN FRANCISCO: Photo-messaging app Snapchat has decided to raise a billion dollars in short-term debt to beef up its app with more Augmented Reality (AR) and media content.

Google updates Images section to focus on shopping

Google updates Images section to focus on shopping

07 Aug 2019 | 2:11 PM

SAN FRANCISCO: Google has updated its Images section to show users shoppable results when they enter specifications like "green dress" or "black lamp".

Apple to hit Facebook, other messaging apps with new curbs

Apple to hit Facebook, other messaging apps with new curbs

07 Aug 2019 | 1:07 PM

SAN FRANCISCO: Tweaking its mobile operating system (OS), Apple is planning to restrict bar apps which used to make Internet-based voice calls from running in the background when not in use.

Drug users regret posting on social media while being high

Drug users regret posting on social media while being high

06 Aug 2019 | 4:43 PM

NEW YORK: Posting on social media, texting or calling while high on drugs is prevalent among young people, and many say that they regret this behaviour later, researchers said.

NASA's Mars 2020 rover undergoes 'eye' test

NASA's Mars 2020 rover undergoes 'eye' test

06 Aug 2019 | 3:05 PM

WASHINGTON: NASA's latest robotic mission to the Red Planet, the Mars 2020 rover which has an armada of imaging capabilities from wide-angle landscape cameras to narrow-angle high-resolution zoom lens cameras, underwent an "eye" examination after several cameras were installed on it, the US space agency said.

Want to be next Jeff Bezos? Don't ignore sleep

Want to be next Jeff Bezos? Don't ignore sleep

06 Aug 2019 | 1:41 PM

NEW YORK: Jeff Bezos came up with a brilliant idea that turned into a company and now a household name—Amazon. The secret ingredient for coming up with these ideas may be something we can all tap into—a good night's sleep.

    more Spectrum...
    Work@ social network

    Work@ social network

    14 Aug 2019 | 8:14 AM
    Follow a robust growth

    Follow a robust growth

    14 Aug 2019 | 8:14 AM
    Where world is your businessCareer compass: International trade officer

    Where world is your business

    14 Aug 2019 | 8:14 AM
    more Jobs & Careers...