Scientists at Bengaluru’s Raman Research Institute have discovered a novel toxin detection method inspired by the “coffee-stain effect.” The technique uses gold nanorods to identify toxic dyes like Rhodamine B at ultra-low concentrations, offering a faster, affordable way to monitor food and water safety.
Source: https://krishijagran.com/news/morning-coffees-could-hold-the-key-to-detecting-toxic-dyes-in-food/
