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Latest Nanoparticle Stories

NASA Nanoparticle Measuring Device
2013-12-06 09:53:08

John P. Millis, PhD for redOrbit.com - Your Universe Online Although the name sounds like something out of a science fiction novel, nanoparticles are nothing more than tiny fragments of matter that are typically less than 100 nanometers in diameter – roughly one-thousandth the thickness of a sheet of paper. Despite their size, however, they can pose a significant health risk. Arising from various industrial processes, some pollutants, and even volcanic activity, the small size of the...

Nanomedicine May One Day Be Delivered Orally
2013-11-28 04:43:35

redOrbit Staff & Wire Reports - Your Universe Online Researchers from MIT and Brigham and Women's Hospital (BWH) have developed a new type of nanoparticle that can be absorbed through the digestive tract, bringing the cutting-edge treatment method one-step closer to being administered orally instead of through injections. While drugs delivered by nanoparticles could help treat cancer, diabetes and several other types of disease, the fact that these particles currently have to be...

ISS Genius Material Experiment
2013-11-27 14:16:07

[ Watch The Video: ScienceCast Genius Materials On The ISS ] Lee Rannals for redOrbit.com - Your Universe Online The glass on a smartphone is considered to be a 'smart material,' but scientists are working to create 'genius materials' in an experiment aboard the International Space Station (ISS). Corning Gorilla Glass is the type of glass used on smartphones, making the devices resistant to abrasions and low drops. The glass’ toughness is due in part to “fat” potassium ions...

2013-11-25 14:34:47

ICFO scientists have optically levitated nanoparticles in high vacuum conditions and measured the highest Q-factor ever observed in nano- or micromechanical systems A recent study led by researchers of the Institute of Photonic Sciences (ICFO) achieved the highest force sensitivity ever observed with a nano-mechanical resonator. The scientific results of this study have been published in Nature Physics. Nano- and micromechanical oscillators with high quality (Q) factors have gained much...

X-rays Reveal Unexpected Property Of Widely Used Nanoparticles
2013-11-12 15:02:07

European Synchrotron Radiation Facility A new chapter has been opened in our understanding of the chemical activity of nanoparticles says a team of international scientists. Using the X-ray beams of the European Synchrotron ESRF they showed that the electrons absorbed and released by cerium dioxide nanoparticles during chemical reactions behave in a completely different way than previously thought: the electrons are not bound to individual atoms but, like a cloud, distribute themselves...

Penn Researchers Add Another Tool In Their Directed Assembly Toolkit
2013-11-12 12:43:22

University of Pennsylvania An interdisciplinary team of University of Pennsylvania researchers has already developed a technique for controlling liquid crystals by means of physical templates and elastic energy, rather than the electromagnetic fields that manipulate them in televisions and computer monitors. They envision using this technique to direct the assembly of other materials, such as nanoparticles. Now, the Penn team has added another tool to its directed assembly toolkit,...

2013-11-07 14:06:36

Nanoparticles filled with chemotherapeutic drugs can kill drug-resistant breast cancer cells, according to a study published in the scientific journal Biomaterials. Nanoparticles are just as small, or even smaller, than many blood proteins. They can therefore pass through the walls of healthy and sick cells, which make them interesting carriers of drugs against cancer and other diseases. In the present study, researchers from Karolinska Institutet have shown that nanoparticles made from...

2013-11-04 13:44:53

An international team of researchers has used pioneering electron microscopy techniques to discover an important mechanism behind the reaction of metallic nanoparticles with the environment. Crucially, the research led by the University of York and reported in Nature Materials, shows that oxidation of metals - the process that describes, for example, how iron reacts with oxygen, in the presence of water, to form rust - proceeds much more rapidly in nanoparticles than at the macroscopic...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.