University of Toronto Engineering researchers have built a set of magnetic ‘tweezers’ that can position a nano-scale bead inside a human cell in three dimensions with unprecedented precision. The nano-bot has already been used to study the properties of cancer cells, and could point the way toward enhanced diagnosis and treatment.
Professor Yu Sun and his team have been building robots that can manipulate individual cells for two decades. Their creations have the ability to manipulate and measure single cells — useful in procedures such as in vitro fertilization and personalized medicine. Their latest study, published today in Science Robotics, takes the technology one step further.
“So far, our robot has been exploring outside a building, touching the brick wall, and trying to figure out what’s going on inside,” says Sun. “We wanted to deploy a robot in the building and probe all the rooms and structures.”
The team has created robotic systems that can manipulate sub-cellular structures inside electron microscopes, but that requires freeze-drying the cells and cutting them into tiny slices. To probe live cells, other teams have used techniques such as lasers or acoustics.
“Optical tweezers — using lasers to probe cells — is a popular approach,” says Xian Wang, the PhD candidate who conducted the research. The technology was honoured with 2018 Nobel Prize in Physics, but Wang says the force that it can generate is not large enough for mechanical manipulation and measurement he wanted to do.
“You can try to increase the power to generate higher force, but you run the risk of damaging the sub-cellular components you’re trying to measure,” says Wang.
Image Credit: Roberto Frankenberg
Thanks to Heinz V. Hoenen. Follow him on twitter: @HeinzVHoenen
News This Week
Superbugs Are Losing to Science, Light, and a Little Spice
Texas A&M researchers have found that curcumin, when activated by light, can weaken antibiotic-resistant bacteria, restoring the effectiveness of conventional antibiotics. Curcumin: A Surprising Ally Against Superbugs In 2017, a woman admitted to a [...]
New Research Shatters the Perfect Pitch Myth
For decades, people believed absolute pitch was an exclusive ability granted only to those with the right genetics or early music training. But new research from the University of Surrey proves otherwise. It’s been [...]
Why Some Drinkers Suffer Devastating Liver Damage While Others Don’t
A study from Keck Medicine of USC found that heavy drinkers with diabetes, high blood pressure, or a large waistline are up to 2.4 times more likely to develop advanced liver disease. These conditions may amplify [...]
“Good” Cholesterol Could Be Bad for Your Eyes – New Study Raises Concerns
‘Good’ cholesterol may be linked to an increased risk of glaucoma in individuals over 55, while, paradoxically, ‘bad’ cholesterol may be associated with a lower risk. These findings challenge conventional beliefs about factors that [...]
Reawakening Dormant Nerve Cells: Groundbreaking Neurotechnology Restores Motor Function
A new electrical stimulation therapy for spinal muscle atrophy (SMA) has shown promise in reactivating motor neurons and improving movement. In a pilot clinical trial, three patients who received spinal cord stimulation for one [...]
AI’s Energy Crisis Solved? A Revolutionary Magnetic Chip Could Change Everything
AI is evolving at an incredible pace, but its growing energy demands pose a major challenge. Enter spintronic devices—new technology that mimics the brain’s efficiency by integrating memory and processing. Scientists in Japan have [...]
Nanotechnology for oil spill response and cleanup in coastal regions
(Nanowerk News) Cleaning up after a major oil spill is a long, expensive process, and the damage to a coastal region’s ecosystem can be significant. This is especially true for the world’s Arctic region, [...]
The Role of Nanotechnology in Space Exploration
Nanotechnology, which involves working with materials at the atomic or molecular level, is becoming increasingly important in space exploration. By improving strength, thermal stability, electrical conductivity, and radiation resistance, nanotechnology is helping create lighter, more [...]
New Study Challenges Beliefs About CBD in Pregnancy, Reveals Unexpected Risks
CBD is gaining popularity as a remedy for pregnancy symptoms like nausea and anxiety, but new research suggests it may not be as safe as many believe. A study from McMaster University found that [...]
Does COVID increase the risk of Alzheimer’s disease?
Scientists discover that even mild COVID-19 can alter brain proteins linked to Alzheimer’s disease, potentially increasing dementia risk—raising urgent public health concerns. A recent study published in the journal Nature Medicine investigated whether both mild and [...]
New MRI Study Reveals How Cannabis Alters Brain Activity and Weakens Memory
A massive new study sheds light on how cannabis affects the brain, particularly during cognitive tasks. Researchers analyzed over 1,000 young adults and found that both heavy lifetime use and recent cannabis consumption significantly reduced brain [...]
How to Assess Nanotoxicity: Key Methods and Protocols
With their high surface area and enhanced physicochemical properties, nanomaterials play a critical role in drug delivery, consumer products, and environmental technologies. However, their nanoscale dimensions enable interactions with cellular components in complex and [...]
Nanotech drug delivery shows lasting benefits, reducing need for repeat surgeries
A nanotechnology-based drug delivery system developed at UVA Health to save patients from repeated surgeries has proved to have unexpectedly long-lasting benefits in lab tests – a promising sign for its potential to help human patients. [...]
Scientists Just Found DNA’s Building Blocks in Asteroid Bennu – Could This Explain Life’s Origins?
Japanese scientists detected all five nucleobases — building blocks of DNA and RNA — in samples returned from asteroid Bennu by NASA’s OSIRIS-REx mission. NASA’s OSIRIS-REx mission brought back 121.6 grams of asteroid Bennu, unveiling nitrogen-rich organic matter, including DNA’s essential [...]
AI-Designed Proteins – Unlike Any Found in Nature – Revolutionize Snakebite Treatment
Scientists have pioneered a groundbreaking method to combat snake venom using newly designed proteins, offering hope for more effective, accessible, and affordable antivenom solutions. By utilizing advanced computational techniques and deep learning, this innovative [...]
New nanosystem offers hope for improved diagnosis and treatment of tongue cancer
A pioneering study has unveiled the Au-HN-1 nanosystem, a cutting-edge approach that promises to transform the diagnosis and treatment of tongue squamous cell carcinoma (TSCC). By harnessing gold nanoparticles coupled with the HN-1 peptide, [...]
Leave A Comment