Switching Gold Nanoparticles ON to Detect Heavy Metal Ions in Water

Mercury ion (Hg2+ ) is a heavy metallic contaminant that can compromise water quality and damage human health. Therefore, the precise detection of Hg2+ has become a significant research area. Developing a unique fluorescence "OFF-ON" sensing technique for Hg2+ based on synthesized gold nanoparticles (GNPs) is the topic of a recent study published in the journal Chemosphere.