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Nanoparticles

Tissue plasminogen activator (tPA) is a drug commonly used by surgeons to bust open blood clots in a patient's bloodstream, but it does have its limitations. Once injected, there's no guarantee it will reach the site of the blood clot, and even then, having it arrive in the correct dosage can be tricky, with the risk of hemorrhage a very real possibility. Researchers have now found that using a new type of magnetic nanoparticle to deliver the drug offers a much more efficient journey to the site, promising to destroy blood clots 100 to 1,000 times faster and aid significantly in the prevention of heart attacks and strokes. Read More
We've been hearing a lot about the antibacterial qualities of silver, with silver nanoparticles finding use in everything from water filters to food packaging. Unfortunately, there are also concerns about the toxicity of those particles, particularly when they enter our bodies. Now, however, Polish scientists have developed what they claim is a safer alternative – an antibacterial coating that kills microbes using gold. Read More
A team of MIT researchers has developed a new, self-healing hydrogel that doesn’t require surgical implantation, but can be injected using a syringe. The new gel, which can carry two drugs at once, allows for more convenient treatment of numerous conditions. Read More
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
Researchers from South Korea have developed a thin, highly-flexible film that could enable a new generation of wearable devices that wrap around your finger or wrist. The multiferroic film even amplified the properties inherent in the bismuth ferrite it was made from, and the enhanced properties were preserved when the film was curved into a cylindrical shape. Read More
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
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
A new experimental, non-invasive medical technique is promising to precisely deliver drug-carrying metal nanorods anywhere inside the body and image tissue with cellular resolution. If perfected, the approach could be used to treat inoperable deep-tissue tumors, brain trauma, and vascular or degenerative diseases. Read More
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
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
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