GREEN SYNTHESIS OF GOLD NANOPARTICLES USING ACERPENTAPOMICUM LEAVES EXTRACT ITS CHARACTERIZATION,ANTIBACTERIAL, ANTIFUNGAL AND ANTIOXIDANT BIOASSAY

Digest Journal of Nanomaterials and Biostructures

S. Khan¹ 

关键词: Gold nanoparticles;    Green synthesis;    SEM;    Antimicrobial;    Antioxidant;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

Over recent years biogenic synthesis of gold nanoparticles from plant extracts has gainedmuch interest from the researchers world widely. Therefore, there is need to divulge thecost effective, nonhazardous and ecofriendly procedures and sources for the synthesis ofnanoparticles utilizing the plants. Acer family is well adorned for its medicinal potency.The aim of the study was to investigate an efficient and stable procedure for the synthesisof gold nanoparticles(AuNps) from aqueous leaves extract of Acer pentapomicum whichacts as reducing as well as stabilizing agent. AuNps were synthesized by reacting 1mMgold chloride solution with aqueous leaves extract. The synthesized nanoparticles wereconfirmed by observing a visible change in color of the solution mixture and characterizedby UV-visible spectrophotometer, SEM, EDX, XRD and FTIR. The synthesizednanoparticles were also investigated for their antibacterial, antifungal and antioxidantactivity. AuNps were successfully synthesized and characterized. The morphology, size,and structural properties of obtained nanoparticles were determined by SEM, EDX and Xraydiffraction (XRD) techniques. Spherical AuNps, as depicted by SEM, were found tohave a size range of 19- 24 nm. FTIR analysis confirmed the coating of phenolic andalcoholic compounds on AuNPs, indicating their possible role in the capping andstabilization of AuNPs. X-ray powder diffraction highlighted the crystalline nature of theAuNps. The synthesized AuNps were found highly toxic against K. pneumonia followedby P. aeruginosa B. subtilus, E. coli, S. aureus and X. compestris. These were also foundto possess potent fungicidal and candidacidal activities against various tested species.Additionally, the antioxidant potential against DPPH revealed that green synthesizedAuNPs exhibited good antioxidant activity.

【 授权许可】

Unknown