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Nanoparticle Pollution Rises 30% When Flex-Fuel Cars Switch From Bio to Fossil
Publicado em 29 de agosto de 2017
When ethanol prices at the pump rise for whatever reason, it becomes economically advantageous for drivers of dual-fuel vehicles to fill up with gasoline. However, the health of the entire population pays a high price: substitution of gasoline for ethanol leads to a 30% increase in the atmospheric concentration of ultrafine particulate matter, which consists of particles with a diameter of less than 50 nanometers (nm).
The phenomenon was detected in São Paulo City, Brazil, in a study [...]
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Biosensor Could Detect Alzheimer's, Parkinson’s, Cancer
Publicado em 23 maio 2016Researchers at the National Nanotechnology Laboratory (LNNano) have developed a simple electronic device for detecting a pair of biomolecules related to various types of cancer and neurodegenerative diseases such as Alzheimer's and Parkinson's. The development is based on a transistor with an organic layer on a nanometric scale, in liquid medium, which can easily identify the peptide reduced glutathione (GSH) and glutathione S-transferase (GST). Unlike conventional transistors, which are [...]ver notícia