Companies cannot protect workers from nanoparticle exposure unless first they can determine there is a potential problem. To date, the size and cost of existing nanoparticle size measurement instrumentation has been an impediment to routine industrial measurements.
Researchers at the National Institute of Standards and Technology (NIST) and the University of Massachusetts Amherst (UMass) have provided the first evidence that engineered nanoparticles are able to accumulate within plants and damage their DNA. In a recent paper, the team led by NIST chemist Bryant C. Nelson showed that under laboratory conditions, cupric oxide nanoparticles have the capacity to enter plant root cells and generate many mutagenic DNA base lesions.
Copper — the stuff of pennies and tea kettles — is also one of the few metals that can turn carbon dioxide into hydrocarbon fuels with relatively little energy. When fashioned into an electrode and stimulated with voltage, copper acts as a strong catalyst, setting off an electrochemical reaction with carbon dioxide that reduces the greenhouse gas to methane or methanol.
Silver nanoparticles cause more damage to testicular cells than titanium dioxide nanoparticles, according to a recent study by the Norwegian Institute of Public Health. However, the use of both types may affect testicular cells with possible consequences for fertility.
Nearly all chemical products ranging from antifreeze and medicine to plastics and paint are currently made from petroleum. But since it became apparent that the petroleum supply was not as reliable and unending as many had hoped, several techniques have … Continue reading
Carbon nanotubes are stronger than steel, harder than diamond, light as plastic and conduct electricity better than copper. It is no wonder they can be found in an increasing range of products, ranging from tennis rackets to solar cells and … Continue reading
Air pollution from diesel engine fumes may end up in a honeybee’s brain. And for our flower-powered little friends that could be about as bad as it sounds, say a group of researchers from the University of Southampton – led … Continue reading
Hydrogen would be an excellent clean energy source, were it not for the fact that it costs a tremendous amount of energy to produce and is thus quite expensive. Researchers have been looking for ways to cheaply and sustainably produce … Continue reading