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Nanoparticles

Immunofluorescence image shows nanoparticles targeted to endothelial cells – the red parti...

In recent years, we've seen various research efforts looking to specifically target cancer cells as a replacement for the shotgun approach employed by chemotherapy that also damages healthy cells. The trick is to develop a delivery vehicle that identifies and targets only cancer cells, while ignoring the healthy ones. Researchers have found charged polymers have this ability, opening the door for nanoparticles containing cancer-fighting drugs to deliver their payload directly to the cancer cells.  Read More

The new transparent display developed at MIT offers a wide viewing angle

There are a number of approaches currently used to create transparent displays, such as transparent OLED and LCD displays or simple reflection, however, most are limited in terms of viewing angle. Researchers at MIT have come up with a new system that is low-cost and offers a wide angle of view with the projected image appearing on the transparent material itself.  Read More

An injection of polymer nanoparticles could save the lives of heart attack victims (Image:...

After a heart attack has occurred, inflammatory cells known as monocytes rush to the damaged tissue. This causes the heart to swell, reducing its ability to pump blood, and further damaging the tissue – a potentially lethal situation. Now, however, scientists have discovered that injectable microparticles can help stop that from happening.  Read More

A nanoparticle delivery mechanism (left) treats tumors in mice more effectively

A common strategy for treating tumors is combining two or more drugs, which has the effect of decreasing toxicity and increasing the synergistic effects between the drugs. However, the efficacy of this kind of cocktail treatment suffers when the drugs require access to different parts of the cell, a bit like fighting a battle by depositing all your archers on the same spot as your infantrymen. By making use of nanoparticle-based carriers, researchers at North Carolina State University are able to transport multiple drugs into cancerous cells optimally and precisely, in maneuvers that any field commander would be proud of.  Read More

Managing magnetism on a nanoscale could provide a big boost for digital storage (Image: Sh...

An international team of scientists has made a breakthrough in the magnetic manipulation of nanoparticles that could lead to a big boost for small scale digital storage in portable devices.  Read More

A newly developed nanoparticle may signal the end of injections for treatment of some comm...

Most of us would swallow a pill before being poked by a needle, yet sufferers of chronic illnesses are regularly required to administer their medicine intravenously. A team of researchers from MIT and Brigham and Women's Hospital (BWH) has developed a new type of nanoparticle that could afford patients the choice – potentially making uncomfortable injections a thing of the past in the treatment of a range of chronic diseases.  Read More

Focused waves of ultrasound have been used to release insulin from reservoirs in the skin

There could be hope for diabetics who are tired of giving themselves insulin injections on a daily basis. Researchers at North Carolina State University and the University of North Carolina at Chapel Hill are developing a system in which a single injection of nanoparticles could deliver insulin internally for days at a time – with a little help from pulses of ultrasound.  Read More

A new generalized method for dna-assisted assembly can mix and match two different types o...

Researchers at the Brookhaven National Laboratory (BNL) have developed a generalized method of blending two different types of nanoparticles into a single large-scale composite material using synthetic DNA strands. The technique has great potential for designing a vast range of new nanomaterials with precise electrical, mechanical or magnetic properties.  Read More

Do 'plasmonic nanostructures' hold the key to next-generation solar power?  (Photo: Shutte...

Researchers at the University of Pennsylvania have found a way to harvest energy from sunlight more efficiently, with the help of so-called plasmonic nanostructures. The new findings suggest that plasmonic components can enhance and direct optical scattering, creating a mechanism that is more efficient than the photoexcitation that drives solar cells. The development could therefore provide a real boost to solar cell efficiency and lead to faster optical communication.  Read More

Rice University graduate student Oara Neumann, left, and scientist Naomi Halas with their ...

Last year, researchers at Rice University revealed a new way to convert solar energy directly into steam using light-absorbing nanoparticles. At that time, the technology had already been used to create a solar steam-powered autoclave for sterilizing medical and dental equipment and the project had been awarded a grant from the Bill and Melinda Gates Foundation to turn the technology to the task of sanitizing human waste. The researchers have now put both applications to the test.  Read More

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