In situ biosynthesis of Ag, Au and bimetallic nanoparticles using Piper pedicellatum C.DC: Green chemistry approach

► Synthesis of Ag, Au and bimetallic nanoparticles by Piper pedicellatum leaf extract. ► The Ag nanoparticles predominantly form spherical in shape. ► The size of the nanoparticles found to be <45 nm. ► Flavonoid and phenolic acids may be responsible for stabilizing the nanoparticles. ► Flavonoid and phenolic acids were identified may be responsible for biosynthesis.