Green Synthesis of Silver Nanoparticles Using Helichrysum graveolens for Biomedical Applications and Wastewater Treatment

Abstract

The use of herbal medicine products is well recognized since the advent of mankind having very little side effects. Biological procedures as eco-friendly and cost-effective routes are important in the synthesis of nanoparticles and nanomaterials. In this work, biological attitude was aimed at production of nanoparticles by Helichrysum graveolens. Several procedures used to describe fabricated nanoparticles are transmission electron microscopy (TEM), ultraviolet-visible (UV–Vis) spectrometry, and Fourier transform infrared spectroscopy (FTIR). Ultraviolet-visible technique indicated sharp peak in area 439 nm and TEM pictures show that the shape of the nanoparticles (NPs) is spherical and the mean diameter of synthesized nanoparticle is 11 nm. The biosynthesized NPs exhibited antimicrobial properties against predominant pathogenic bacteria (Staphylococcus aureus, Staphylococcus epidermis, Pseudomonas aeruginosa, Escherichia coli). The green-synthesized NPs show anticancer activity against colon cancer cell line (C26) which depends on time and concentrations. Also, the synthesized AgNPs act as a green catalyst because of accelerate degradation of stable and organic dye (Methylene Orange). Consequences established this protocol as easy, fast, and alternative conventional physico-chemical approaches.