Electronic noses sniff out volatile organic compounds
Volatile organic compounds are chemicals emitted as gases that can have adverse health effects. They are often found in paints, pharmaceuticals, and refrigerants, among other common products, but they can also act as markers of explosives, insect infestation, food spoilage, and disease.
Tra ... more
Enhanced arsenic detection in water, food, soil
It is a cruel paradox that on a planet with a surface mostly covered by water, hundreds of millions of people don’t have access to clean drinking water. As for the pollution of potable and natural water sources, one of the main culprits is arsenic, an abundant and toxic element in the earth ... more
Solar cell keeps working long after sun sets
About 750 million people in the world do not have access to electricity at night. Solar cells provide power during the day, but saving energy for later use requires substantial battery storage.
In Applied Physics Letters, by AIP Publishing, researchers from Stanford University constructed a ... more