The molecular building blocks that make up DNA absorb ultraviolet light so strongly that sunlight should deactivate them — yet it does not. Now scientists have made detailed observations of a ‘relaxation response’ that protects these molecules, and the genetic information they encode, from UV damage.
Who guarantees that expensive olive oil isn’t counterfeit or adulterated? An invisible label could perform this task. The tag consists of tiny magnetic DNA particles encapsulated in a silica casing and mixed with the oil. The worldwide need for anti-counterfeiting labels for food is substantial. In December 2013 and January 2014, Interpol and Europol confiscated […]
This week, The Alchemist hears chemical clicking in the DNA lab, wonders about safer lithium batteries, learns how a plant virus might improve medical scanning, and muses on an ancient world without oxygen. In future materials, a boron-based cousin for graphene might soon be on the way. Finally, Arctic chemical research receives funding amounting to […]