3D-printed graphene sensors for highly sensitive food freshness detection
I love the opening line (lede). From a June 29, 2020 news item on Nanowerk, Researchers dipped their new, printed sensors into tuna broth and watched the readings.It turned out the sensors – printed with high-resolution aerosol jet printers on a flexible polymer film and tuned to test for histamine, an allergen and indicator of spoiled fish and meat – can detect histamine down to 3.41 parts per million.The U.S. Food and Drug Administration has…