Think of mercury as an invisible danger in our water and food. Now, scientists at IIT Guwahati have created tiny light-up particles that act like detectives, finding mercury before it can harm us. Prof. Saikat Bhaumik and his team created special crystals about 100,000 times smaller than a human hair. When these crystals touch mercury, they glow bright green – like a warning light telling us something’s wrong. Just as a smoke detector warns us about fire, these crystals warn us about dangerous mercury. “One of the standout features of these perovskite nanocrystals is their narrow emission linewidth, which is … Continue reading IIT Guwahati Develops Nanocrystals to Detect Trace Mercury