chemistry

Scientists at the Fraunhofer Research Institute in Germany have developed a bandage that incorporates a pigment that changes from yellow to purple when there is an infection, indicating that it is time to change dressings.

We already know the 2010 Nobel prizes in all their categories: Physics, Chemistry, Medicine, Literature and the Nobel Peace Prize (the only one that is awarded outside of Sweden, specifically in Oslo). Some of these awards have received harsh criticism, such as the Nobel Prize in Medicine by the Church or the Nobel Peace Prize by the Chinese government. Do you want to know who the winners have been?

The American researcher Richard F. Heck, and the Japanese Ei-ichi Negishi and Akira Suzuki, have been awarded today with the Nobel Prize in Chemistry 2010 for the development of reactions that allow the synthesis of complex molecules of organic chemistry.

Born and raised in the harsh Chicago winters, this atmospheric research chemist knows well what she is talking about when warning of climate change. Luis Miguel Ariza has drawn a profile of the woman who first measured the hole in the ozone layer.

Can silver cutlery be cleaned in an artisan way? On this there are a large number of remedies, most of them useless. But there are two effective ways to do it. The first is to use hydrogen peroxide. If we have plated cutlery we can use a bucket lined with aluminum foil.

White phosphorus is an allotrope - a chemical element with different molecular structures - of phosphorus that is used in the chemical industry and as an incendiary agent. The white phosphorus bombs, known in military jargon as WP -White Phosphorus-, are made with it. In Vietnam they were popularly called Willy Peter.

Mosquitoes inherit resistance to the most common repellent used to defend ourselves from their bites, the insecticide DEET (N, N-diethylmetatoluamide), according to a study by British and Swedish scientists published today in the journal PNAS.

The carbon-14 method, used by archaeologists and paleontologists to date ancient objects and fossil remains, could also be used to determine the exact age of a wine, a team of Australian researchers suggests.