Green synthesis and characterization of silver nanoparticles using banana peel extract and their antimicrobial activity against representative microorganisms

The present study reports an eco-friendly, cost efficient, rapid and easy method for synthesis of silver nanoparticles using banana peel extract (BPE) as a reducing and capping agent. The different factor affecting silver reduction was investigated. The optimum conditions were silver nitrate (1.75 mM), BPE (20.4 mg dry weight), pH (4.5) and incubation time (72 h). BPE can reduces silver ions into silver nanoparticles within 5 min after heating the reaction mixture (40–100 °C) as indicated by the developed reddish brown color. The UV–Vis spectrum of silver nanoparticles revealed a characteristic surface plasmon resonance (SPR) peak at 433 nm. Silver nanoparticles were characterized. X ray diffraction revealed…