Biogenic synthesis of gold nanoparticles using Haematocarpus validus fruit ethanol extract and their antioxidant activity

Abstract

In order to obtain environmentally friendly nanoparticles for the biological applications, this paper explores the green route for the synthesis of gold nanoparticles via sonic bath method using Haematocarpus validus fruit extract as reducing, capping and stabilizing agent. The phytochemical screening of ethanol extract reveals secondary metabolites like anthocyanins, polyphenol, flavonoids, alkaloids and tannins. The prepared gold nanoparticles (HVGNP) were analysed using UV, FTIR, XRD, EDX and FESEM spectroscopic techniques. The antioxidant activity of synthesized HVGNP measured by the DPPH method reveals the synthesized gold nanoparticles appreciable antioxidant activity.

Green Eco-Friendly One-Pot Synthesis of Luminescent Carbon Dots from Fruit Pod of Borassus Flabellifer and Stem of Trigonella Foenum-Graecum L and Its Anti-Microbial Applications

“…The Agar disc diffusion technique was adopted to perform the assay. (14) There were numerous reports stated that gram-positive bacteria were probably extra sensitive to the nanoparticles than gram-negative bacteria, so gram-negative bacteria were more efficient in inhibition.…”