Never miss a story

Get subscribed to our newsletter


×
Cancer Ribbon. Pixabay

Canadian scientists have developed a kind of magnetic tweezer that can precisely insert a minuscule bead robot into a live human cancer cell, pointing to a new option for diagnosing and killing cancer.

The study, published in the journal Science Robotics, described the design in which a magnetic iron bead about 100 times smaller than the thickness of a human hair can be coaxed into any desired position within the cell, the Xinhua reported.


The bead, about 700 nanometres in diameter, is placed on the microscope coverslip surrounded by six magnetic coils in different planes, and the cancer cell can swallow the bead into its membrane.

Then, the researchers from University of Toronto controlled the bead’s position under a microscope, using a computer-controlled algorithm to vary the electrical current through coils and shaping the magnetic field in three dimensions.

The researchers used their robotic system to study early-stage and later-stage bladder cancer cells. Previously, they had to extract the cell nuclei to examine it.

The team measured cell nuclei in intact cells instead of breaking apart the cell membrane, showing that the nucleus is not equally stiff in all directions.


Representational image. Pixabay

“It’s a bit like a football in shape. Mechanically, it’s stiffer along one axis than the other,” said Professor Sun Yu.

“We wouldn’t have known that without this new technique.”

Also Read- Fiery Political Content Arriving on Social Media

They were able to measure how much stiffer the nucleus got when prodded repeatedly, and thus find out which cell protein or proteins might play a role in controlling this response, which could work as a new method of detecting cancer in early stage.

In the later-stage cells, the stiffening response is not as strong as they are in the early stage, though both are seemingly similar, the researchers said.

Also, the team visualised using the tiny robots to either starve a tumour by blocking its blood vessels, or destroy it directly through mechanical ablation, although those applications are still a long way from clinical uses. (IANS)


Popular

Photo by Priscilla Du Preez on Unsplash

Your monthly round up of the latest lifestyle launches, from luxury indulgences to artisanal creations.

By Nimerta C Sharan

Your monthly round up of the latest lifestyle launches, from luxury indulgences to artisanal creations, here's what you can look forward to :

Bag This
Exciting news for all handbag lovers, luxury fashion house Louis Vuitton recently launched their limited edition handbags 'Artycapucines - Chapter 3'. Six internationally -- acclaimed artists have transformed the black canvas of the timeless Capucines bag into beautiful art pieces. Each bag will be available in a limited edition of 200 and will be released worldwide at the end of October 2021.

white leather shoulder bag on shopping cart Exciting news for all handbag lovers, luxury fashion house Louis Vuitton recently launched their limited edition handbags. | Photo by Erik Mclean on Unsplash

Keep Reading Show less
IANS

Actress Kangana Ranaut has talked about how her weight adjustments for her latest 'Thalaivii' that "messed up many things" in her body

Actress Kangana Ranaut has talked about how her weight adjustments for her latest 'Thalaivii' that "messed up many things" in her body and left her with "permanent stretch marks". For her role in the film, based on the life of late Tamil Nadu Chief Minister and former actress J. Jayalalithaa, Kangana had to gain 20kg and undergo major physical transformation several times.

She took to Instagram to share her experience, detailing that doing all that over the six months period left her with "permanent stretch marks". "Gaining 20 kgs in 6 months and loosing it all within 6 months that too in my thirties messed up many things in my bodya I also have permanent stretch marks as well but art comes to life with a price and more often than not price is the artist him/herself," she wrote.

"Thalaivii" showcases the varied aspects of Jayalalithaa's life, tracing her journey as an actress at a young age to becoming the face of Tamil cinema, as well as the rise of the revolutionary leader who changed the course of the state's politics. Talking about her upcoming works, Kangana currently has 'Dhaakad'.

She is also shooting for her next 'Tejas', where she plays a fighter pilot. The Indian Air Force was the first of the country's defence forces to induct women into combat roles in 2016. The film takes inspiration from the landmark event. 'Tejas' is directed by debutant Sarvesh Mewara. The film will be RSVP's second film which pays a tribute to the Indian military after the immensely successful film "Uri: The Surgical Strike" which was released in January 2019. (IANS/ MBI)


Keep Reading Show less
Wikimedia Commons

Signal's encrypted messaging app continues to be down on Monday after facing global outage on Sunday.

Signal's encrypted messaging app continues to be down on Monday after facing global outage on Sunday. The firm said it is working to fix it. "Hold tight, folks! Signal is currently down, due to a hosting outage affecting parts of our service. We're working on bringing it back up," the firm said in a tweet on Sunday.

The status website says the encrypted messaging app is "experiencing technical difficulties" and many people are also getting an in-app error message that says the same thing. Signal allows for secure and encrypted video, voice and text communication, but users are unable to send any messages.

According to Downdetector.com, users started reporting outages around 11:05 PM Eastern Standard Time and it appears to be affecting people around the world. Comments shared on Downdetector.com indicates that Signal was down for users from India, US, Germany, New Zealand, Netherlands, Australia, Brazil and many other countries.

"Down in Midwest USA. Signal was started by people connected to which secret 3-letter organization? (Look it up) Yep, that's right! An app disguised a privacy app to trick you into sharing more private information than you would with another messaging app," a user said. "I think Signal is having a rough day. Good luck, Team Signal. I'm sure you'll have it sorted out in a snap," said another. The encrypted messaging service has climbed to the top spot in the free apps category of the App Store in multiple countries, including India. (IANS/ MBI)


Keep reading... Show less