Synthesis and Characterization of Biogenic Gold Nanoparticles Using Aegle marmelos Extracts: Antibacterial Assay

In the present paper we discuss about the biogenic synthesis of gold nanoparticles using Aegle marmelos extract. The gold nanoparticles were synthesized via eco-friendly and low cost effective method. Preparation of the aqueous leaf extracts of Aegle marmelos was carried out deionized water and the extracts acted as reducing agent as well as capping agent. The synthesized gold nanoparticles were characterized by UV-Visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray Diffraction (XRD), Field emission gun Scanning electron microscopy (FEG-SEM) with EDS and High Resolution Transmission electron microscopy (HR-TEM). The elemental composition and purity of gold nanoparticles was analysed by EDS. XRD patterns showed average particle size of 22 nm and also UV absorption peak showed around 534 nm. The antibacterial activity of gold nanoparticles was studied against micro organisms like against Bacillus sublilis (MTCC 121) and Escherichia coli (MTCC 119).