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Nanoparticles


— Space

NASA creates artificial stardust

Carl Sagan once said, “We are made of starstuff.” Unfortunately, he was a bit vague about what this starstuff actually is. To help answer that question, scientists at NASA’s Ames Research Center in California have developed a way of recreating the dust and gas found around dying red giant stars that eventually become planet-forming interstellar dust. Read More
— Science

Added DNA could be used to authenticate premium olive oil

When most people think of counterfeit goods, they probably picture things like handbags or watches. In fact, there's also a huge market for knock-off high-end food products, such as extra-virgin olive oil. Scientists from Switzerland's ETH Zurich research group, however, have come up with a possible method of thwarting the makers of that bogus oil – just add synthetic DNA particles to the real thing. And yes, consumers would proceed to swallow those particles. Read More
— Medical

High-performing surgical adhesive utilizes nanoparticles

In the ongoing quest to develop better ways of sealing wounds within the body, scientists have created surgical adhesives inspired by porcupine quills, mussels and slugs. Not all good ideas have to come from the animal kingdom, however. Recently, French researchers have had success in repairing internal organs using an adhesive solution that incorporates either silica or iron oxide nanoparticles. Read More
— Medical

Drug-delivering nanoparticles pose a triple threat to cancer

Delivering drugs that can knock out tumor cells within the body, without causing adverse side effects, is a tricky busines. It's why scientists have taken to engineering new and creative types of nanoparticles that do the job. Increasing a nanoparticle's ability to carry more drugs expands treatment options, but creating nanoparticles capable of delivering more than one or two drugs has proven difficult – until now. Scientists at MIT report creating a revolutionary building block technique that's enabled them to load a nanoparticle with three drugs. The approach, they say, could be expanded to allow a nanoparticle to carry hundreds more. Read More
— Science

Nanoparticles found to violate second law of thermodynamics

It may be a little late for April Fool’s, but your skepticism is nonetheless warranted when reading that researchers have shown nanoparticles to disobey a fundamental law of physics which dictates the flow of entropy and heat in, it was believed, any situation. Specifically, researchers from three universities theoretically proposed then demonstrated that a nanoparticle in a state of thermal non-equilibrium does not always behave as larger particles might under the same conditions, with implications for various fields of research. Read More
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