Surface ligand modified silver nanoparticles-based SERS sensing platform for ultrasensitive detection of the pesticide thiram in green tea leaves: roles of coating agents in sensing performance

Abstract

We fabricated three AgNPs: Ag-citrate, Ag-oleic, and Ag-bio. All exhibit a SERS effect enhancing thiram's Raman signal. Notably, Ag-Oleic shows superior performance, serving as an active SERS substrate for thiram detection in tea leaves.