Technology Researchers use nanorobots to kill tumors in mice

09:51  13 february  2018
09:51  13 february  2018 Source:   engadget.com

Cellphone radiation poses no real harm to humans, new research says

  Cellphone radiation poses no real harm to humans, new research says Male rats showed a small increase in a kind of heart tumor after exposure to massive amounts of cellphone radiation, a new government study reports. There’s an ongoing debate about whether cellphones can give you cancer — especially brain cancer, since our phones spend so much time near our faces. It’s true that cell phones do emit radiation. But it’s radiofrequency radiation, which is much lower energy than the ionizing radiation you’d get from an X-ray, or, say, nuclear fallout. Ionizing radiation can cause DNA damage that can eventually lead to cancer. But the radiofrequency radiation from a cellphone doesn’t work that way — and today’s results support that.

That thrombin will then clot the blood supply to the tumor , effectively cutting off its nutrients and ultimately killing it. To test their nanorobots , the researchers injected them into mice infected with human breast cancer cells and human ovarian cancer cells as well as mouse models of human

The nanorobots successfully and safely killed cancers in mice . Microscopic robots may soon be used to target and destroy tumors , new research suggests. Researchers at Arizona State University programmed specially designed sheets of DNA - a thousand times smaller than a human hair - to flow.

a rodent looking at the camera© Provided by Engadget Our current methods of fighting malignant tumors are wildly inadequate. Chemotherapy and radiation treatments, while sometimes successful, come with massive side effects, mainly because every other cell in the body is also getting bombarded with chemicals and radiation even though the main targets are the tumor cells. Finding a way to specifically target tumor cells while leaving healthy cells alone is something that many researchers are working towards and a new study out today demonstrates that nanorobots made out of DNA could be an effective option.

The research team took DNA from a virus and turned it into a sort of DNA sheet. That sheet was then loaded with an enzyme called thrombin -- a chemical that can clot blood -- and the sheet was then rolled into a tube, with the thrombin kept protected inside. To the ends of that DNA tube, the researchers attached small bits of DNA that specifically bind to a molecule found in tumor cells, and they served as a kind of guide for the DNA nanorobots. The idea is that once the nanorobots are introduced into an organism, they'll travel around and when those guiding bits of DNA come into contact with those tumor-associated molecules, they'll attach. Then, the DNA tube will open up, exposing the thrombin within. That thrombin will then clot the blood supply to the tumor, effectively cutting off its nutrients and ultimately killing it.

Hackers infect Android phones, TVs to mine cryptocurrency

  Hackers infect Android phones, TVs to mine cryptocurrency Chinese researchers found hackers turning internet-connected devices into tools for creating caches of the digital currency Monero.The attack affected 7,000 devices in China, which were hacked into a network that harnessed the processing power of the connected devices to mine, or digitally create, the Monero cryptocurrency, according to ZDNet. Though not as big as some recent botnets, security experts say this approach will increasingly be used by hackers looking to make money off of other people's computers, IoT devices, phones and tablets.

How nanorobots kill tumors . The researchers in this study used a mouse tumor model. Human breast, melanoma, ovarian, and lung cancer cells were injected into mice to spur tumor growth. Once the tumors grew, the nanorobots were injected into the mice .

These DNA nanorobots do so by seeking out and injecting cancerous tumors with drugs that can cut off their blood supply, shriveling them up and killing them. “ Using tumor -bearing mouse models, we demonstrate that intravenously injected DNA nanorobots deliver thrombin specifically to

To test their nanorobots, the researchers injected them into mice infected with human breast cancer cells and human ovarian cancer cells as well as mouse models of human melanoma and lung cancer. In each case, the nanorobots extended the life of the mice and slowed or reversed tumor growth. Further, in the case of the melanoma model, the nanorobots appeared to be able to prevent the spread of melanoma to the liver and with the lung cancer model, the lungs even showed an ability to begin repairing themselves once the tumor growth had slowed.

Of course, the ability to treat tumors would be moot if the nanorobots themselves posed a risk to people. But the team showed that the bots didn't clot blood outside of the tumors and they didn't trigger any significant immune responses in either mice or pigs.

In 2006 Interview, Fergie Revealed Quentin Tarantino Bit Her During ‘Grindhouse’ Shoot

  In 2006 Interview, Fergie Revealed Quentin Tarantino Bit Her During ‘Grindhouse’ Shoot In 2006 Interview, Fergie Revealed Quentin Tarantino Bit Her During ‘Grindhouse’ ShootThe Jezebel website has unearthed a 2007 interview with Fergie, who appeared in Robert Rodriguez's contribution to "Grindhouse", which also featured a standalone story directed by Tarantino.

That thrombin will then clot the blood supply to the tumor , effectively cutting off its nutrients and ultimately killing it. To test their nanorobots , the researchers injected them into mice infected with human breast cancer cells and human ovarian cancer cells as well as mouse models of human

Our current methods of fighting malignant tumors are wildly inadequate. Chemotherapy and radiation treatments, while sometimes successful, come with massive side effects, mainly because every other cell in the body is also getting bombarded with chem… Source: Engadget – Researchers use

While they're still experimental and haven't been tested in humans, these nanorobots show a lot of promise for treating cancer. "Our research shows that DNA-based nanocarriers have been shown to be an effective and safe cancer therapy," Guangjun Nie, one of the researchers on the project, said in a statement. "We are currently working with a biotech firm to translate this revolutionary technology into a viable anti-tumor therapeutic."

The research was published today in Nature Biotechnology.

Nature Biotechnology

‘NCIS’ star Pauley Perrette is living in fear after attacker is released .
Perrette is afraid of what might happen now that the man who attacked her has been released from a psychiatric institution. Perrette, who is best-known for her role on “NCIS,” told Fox 11 that she is “afraid to go out” now that her life is “forever changed” after being attacked by a homeless man in her L.A. neighborhood in 2015.“I'm afraid the next word I hear about this guy is that he's killed a female,” the 48-year-old told the news site.LAPD is aware that the transient, named David Merck, has been released from the state facility and will respond to any reports of an alleged crime, acccording to Fox 11.

Source: http://ca.pressfrom.com/news/technology/-63289-researchers-use-nanorobots-to-kill-tumors-in-mice/

—   Share news in the SOC. Networks

Topical videos:

This is interesting!