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Nanoparticles


— Medical

Gold nanotubes used to image and destroy cancer cells

By - February 16, 2015
For some time, the potential of gold nanoparticles as a diagnostics and imaging tool has been known to scientists, but new research suggests they could prove even more useful than previously thought. A team at the University of Leeds has discovered that shaping the particles in the form of nanotubes sees them take on a number of new properties, including the ability to be heated up to destroy cancer cells. Read More
— Science

Nanobot micromotors deliver medical payload in living creature for the first time

By - January 21, 2015
Researchers working at the University of California, San Diego have claimed a world first in proving that artificial, microscopic machines can travel inside a a living creature and deliver their medicinal load without any detrimental effects. Using micro-motor powered nanobots propelled by gas bubbles made from a reaction with the contents of the stomach in which they were deposited, these miniature machines have been successfully deployed in the body of a live mouse. Read More
— Health and Wellbeing

Scientists find that exposure to nanoparticles could impact cardiovascular health

By - January 11, 2015
Due to its huge potential in applications ranging from cheaper vaccinations to energy-storing car panels, there's plenty of excitement surrounding the emergence of nanotechnology. But a team of scientists are urging caution, with a study conducted at the Technion-Israel Institute of Technology suggesting that exposure to silicon-based nanoparticles may play a role in the development of cardiovascular disease. Read More
— Medical

Magnetically-directed nanoparticles could help heal broken bones

By - November 24, 2014
When a bone is severely broken in the human body, or a bone-fused prosthesis is implanted, a bone graft is also often required to ensure a solid mechanical repair. However, a graft that removes bone from another area of the body can be a painful and invasive procedure, and the mechanical stimulation required for continued bone regeneration in post-operative therapy becomes problematic if a patient is severely immobilized. To address these problems, researchers have discovered that coating magnetic nanoparticles with proteins and then directing them magnetically to the site of the injury can help stimulate stem cells to regenerate bone. Read More
— Medical

Platelet-like nanoparticles improve on nature to stem the blood flow

By - November 20, 2014 2 Pictures
The skin is the body's first line of defense against infection. And when this barrier is broken, or an internal organ is ruptured, it is the process of coagulation, or clotting, which relies largely on blood cells called platelets, that seals the breach and stems the flow of blood. Researchers at UC Santa Barbara have now synthesized nanoparticles that mimic the form and function of platelets, but can do more than just accelerate the body's natural healing processes. Read More
— Medical

Could liposomes be the answer to our antibiotic crisis?

By - November 3, 2014
It’s no secret we are facing an antibiotic crisis. Overuse has caused widespread antibiotic resistance, leading the World Health Organisation to declare we are "headed for a post-antibiotic era, in which common infections and minor injuries which have been treatable for decades can once again kill." Scientists from the University of Bern have developed a new non-antibiotic compound that treats severe bacterial infections and avoids the problem of bacterial resistance. Read More
— Science

Seaweed could provide a safer alternative to antibacterial silver

By - September 30, 2014 2 Pictures
Silver nanoparticles are very effective at killing bacteria, finding use in everything from water filters to non-smelly clothing. That said, there are some major concerns regarding the effects that those particles may have on human health and on the environment. Among other things, it has been suggested that they cause cell death, and compromise the immune system. Now, however, scientists at Sweden's KTH Royal Institute of Technology have come up with what could be a less harmful alternative – red algae. Read More
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