Recent Progress in Silver-Ion-Selective Fluorescence Chemical Sensors.

Heavy metal ions easily accumulate in the human body through the food chain, and their binding with sulfur-containing proteins, enzymes, and various metabolites can affect the liver, kidneys, and central nervous system. The development of sensors for detecting Ag and other metal ions provides an economically efficient means of protecting the environment and human health. This review focused on the latest developments in fluorescent and colorimetric organic small-molecule sensors for identifying Ag. We analyzed their recognition principles and mechanisms; discussed their sensitivity, specificity, and stability; and conducted in-depth research on their application performance in practical environments.