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Latest Nanotoxicology Stories

Many Common Household Products Contain DNA-Damaging Nanoparticles: Study
2014-04-11 07:48:39

redOrbit Staff & Wire Reports - Your Universe Online Some nanoparticles commonly added to thousands of consumer products can significantly damage DNA, according to a new study by researchers at MIT and the Harvard School of Public Health (HSPH). These products, which include cosmetics, sunscreens, clothing and other common items, contain nanoparticles added by manufacturers to, among other things, improve texture, kill microbes, or enhance shelf life. But the current study...

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...

Nanoparticles Mixed To Make Multifunctional Materials
2013-10-21 06:34:23

DOE/Brookhaven National Laboratory Standardized technique opens remarkable opportunities for 'mix and match' materials fabrication Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a general approach for combining different types of nanoparticles to produce large-scale composite materials. The technique, described in a paper published online by Nature Nanotechnology on October 20, 2013, opens many opportunities for mixing and matching particles...

Mammalian Cells Prefer Nanodiscs Over Nanorods
2013-10-07 16:21:24

Georgia Institute of Technology For years scientists have been working to fundamentally understand how nanoparticles move throughout the human body. One big unanswered question is how the shape of nanoparticles affects their entry into cells. Now researchers have discovered that under typical culture conditions, mammalian cells prefer disc-shaped nanoparticles over those shaped like rods. Understanding how the shape of nanoparticles affects their transport into cells could be a major...

New Technique Detects Toxic Nanoparticles In Fresh Produce, Other Foods Products
2013-08-23 08:22:21

April Flowers for redOrbit.com - Your Universe Online The use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industrial uses has increased over the last few years. Silver nanoparticles, for example, are used by farmers as a pesticide because of their capability to suppress the growth of harmful organisms. A growing concern among scientists is that these particles could pose a potential health risk to both humans and the environment. A new study...

2013-05-24 23:24:33

A recent study from Stony Brook University examines the presence and effects of gold nanoparticles that are found in everyday items, most notably cosmetics. Dr. Simon Ourian of Epione Beverly Hills says that he expects further studies will find other nanoparticles responsible for accelerating the visual signs of aging. Los Angeles, California (PRWEB) May 23, 2013 According to a April 18, 2013 Stony Brook University report titled “SBU-Led Study Reveals Nanoparticles Found in Everyday...

2013-04-22 11:28:59

In a new study performed at the Center for Nanoscale Materials at the U.S. Department of Energy´s (DOE) Argonne National Laboratory, researchers have for the first time seen the self-assembly of nanoparticle chains in situ, that is, in place as it occurs in real-time. The scientists exposed a tiny liquid “cell” or pouch that contained gold nanoparticles covered with a positively charged coating to an intense beam of electrons generated with a transmission electron...

2013-04-09 11:18:31

Earlier efforts to determine the health and environmental effects of the nanoparticles that are finding use in hundreds of consumer products may have produced misleading results by embracing traditional toxicology tests that do not take into account the unique properties of bits of material so small that 100,000 could fit in the period at the end of this sentence. That was among the observations presented here today at the 245th National Meeting & Exposition of the American Chemical...

Chemical Interactions With Cell Membranes Can Be Changed With Modifications Of A Nanoparticle
2013-01-24 14:42:12

Syracuse University Researchers at Syracuse University´s Department of Biomedical and Chemical Engineering at L.C. Smith College of Engineering and Computer Science are studying the toxicity of commonly used nanoparticles, particles up to one million times smaller than a millimeter that could potentially penetrate and damage cell membranes. In a recent article published along with cover art in the leading journal Langmuir entitled “Effects of nanoparticle charge and shape...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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