Synthesis of conjugated silver nanoparticles of 18β-glycyrrhetinic acid peptide conjugate (GAP) as a colorimetric probe for barium ions

In this study, we present a direct colorimetric technique for the sensitive and specific detection of Ba 2+ ions in laboratory tap and river water utilizing functionalized 18β-glycyrrhetinic acid peptide silver nanoparticles (GAP-AgNPs).