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Latest Nanotoxicology Stories

2012-05-02 13:15:54

'A huge step forward in the safety screening of nanomaterials,' researchers say Engineered nanomaterials, prized for their unique semiconducting properties, are already prevalent in everyday consumer products – from sunscreens, cosmetics and paints to textiles and solar batteries – and economic forecasters are predicting the industry will grow into $1 trillion business in the next few years. But how safe are these materials? Because the semiconductor properties of...

2012-04-05 21:05:31

Gold nanostars first to deliver drug directly to cancer cell nucleus Nanotechnology offers powerful new possibilities for targeted cancer therapies, but the design challenges are many. Northwestern University scientists now are the first to develop a simple but specialized nanoparticle that can deliver a drug directly to a cancer cell's nucleus -- an important feature for effective treatment. They also are the first to directly image at nanoscale dimensions how nanoparticles interact...

2012-03-09 11:07:24

Nanoparticles are everywhere. From cosmetics and clothes, to soda and snacks. But as versatile as they are, nanoparticles also have a downside, say researchers at Binghamton University and Cornell University in a recent paper published in the journal Nature Nanotechnology. These tiny particles, even in low doses, could have a big impact on our long-term health. According to lead author of the article, Gretchen Mahler, assistant professor of bioengineering at Binghamton University, much of...

2012-02-17 10:27:18

Billions of engineered nanoparticles in foods and pharmaceuticals are ingested by humans daily, and new Cornell research warns they may be more harmful to health than previously thought. A research collaboration led by Michael Shuler, a professor of Chemical Engineering and chair of Biomedical Engineering at Cornell University, studied how large doses of polystyrene nanoparticles — a common, FDA-approved substance found in substances ranging from food additives to vitamins —...

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2012-01-27 14:18:39

The National Research Council said on Wednesday that in order to study the potential health hazards of nanotechnology, researchers will need to drum up an additional $24 million a year. The research council said in a study that a new federal oversight agency is also required to integrate research by private business, universities and international groups. Nanotechnology is being used in a fast-growing variety of consumer products, and involves designing and manufacturing materials on a...

2011-11-29 11:31:24

A study led by a group of Nanyang Technological University (NTU) researchers has found that a chemical commonly used in consumer products can potentially cause cancer. The chemical, Zinc Oxide, is used to absorb harmful ultra violet light. But when it is turned into nano-sized particles, they are able to enter human cells and may damage the user's DNA. This in turn activates a protein called p53, whose duty is to prevent damaged cells from multiplying and becoming cancerous. However, cells...

2011-11-18 02:45:31

Recent studies conducted at Marshall University have demonstrated that nanoparticles of cerium oxide–common diesel fuel additives used to increase the fuel efficiency of automobile engines–can travel from the lungs to the liver and that this process is associated with liver damage. The data in the study by Dr. Eric R. Blough and his colleagues at Marshall´s Center for Diagnostic Nanosystems indicate there is a dose-dependent increase in the concentration of cerium in the...

2011-09-19 08:11:18

Scientists at the University of Plymouth have shown, for the first time in an animal, that nanoparticles have a detrimental effect on the brain and other parts of the central nervous system. They subjected rainbow trout to titanium oxide nanoparticles which are widely used as a whitening agent in many products including paints, some personal care products, and with applications being considered for the food industry. They found that the particles caused vacuoles (holes) to form in parts of...

2011-09-15 12:48:33

A study by researchers from the schools of science and medicine at Indiana University-Purdue University Indianapolis examines the effects of carbon nanoparticles (CNPs) on living cells. This work is among the first to study concentrations of these tiny particles that are low enough to mimic the actual exposure of an ordinary individual. The effects on the human body of exposure to CNPs -- minute chemicals with rapidly growing applications in electronics, medicine, and many other fields --...

2011-08-24 21:38:44

With the curtain about to rise on a much-anticipated new era of "nanoagriculture" – using nanotechnology to boost the productivity of plants for food, fuel, and other uses – scientists are describing huge gaps in knowledge about the effects of nanoparticles on corn, tomatoes, rice and other food crops. That's the topic of the latest episode in the American Chemical Society's (ACS) award-winning "Global Challenges/Chemistry Solutions" podcast series. Jorge Gardea-Torresdey,...


Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
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