Biogenic Synthesis of Gold Nanoparticles (Quasi-Spherical, Triangle, and Hexagonal) Using Lonicera Japonica Flower Extract and Its Antimicrobial Activity

Abstract

The development of an eco-friendly and reliable process for the synthesis of metallic nanoparticles is an important step in the field of the nanotechnology. In the present study, gold nanoparticles (AuNPs) have been synthesized by bio-reduction of chloroauric acid using Lonicera japonica flower extract. AuNPs were characterized using UV-Visible absorption spectroscopy, FTIR, SEM, EDX, TEM, SAED, and XRD. The antimicrobial activity of these AuNPs was evaluated using Gram-positive (S. aureus and B. subtilis), Gram-negative (E. coli), and Fungi C. albicans and S. cerevisiae. The results showed that the combination of ampicillin with AuNPs results in better antimicrobial effects.

Keywords:

• antimicrobial studies
• AuNPs Green synthesis
• Lonicera japonica flower