Synthesis, characterization and antibacterial study of Ag–Au Bi-metallic nanocomposite by bioreduction using piper betle leaf extract

Abstract

Biological reduction method using plant extract for the synthesis of metal and metal oxides are attracted much to the researchers due to its simplicity, which integrates the chemical technology. The special attention is given to the green synthesis of nanoparticles by easily available plants with eco-friendly system compared to other conventional methods. Silver-gold nanocomposite (Ag–Au NCp's) is synthesized by biological reduction of silver nitrate and gold chloride with biological reduction method. These metal salts are simultaneously reduced by betle leaf extract to form respective silver and gold nanocomposite. The structure and morphology of as prepared Ag–Au NCp's sample was characterized by employing powder X-ray diffraction (XRD) tool and by Scanning Electron Micrograph (SEM) tool respectively. Fourier Transform infrared (FTIR) spectral study was undertaken to know the bonding in the prepared silver sample. Energy dispersive X-ray analysis (EDX) study was undertaken to know the formation Ag–Au NCp's. Antibacterial studies are undertaken for the said nanocomposite to know its activity against bacteria.

Phytofabrication of gold and bimetallic gold-silver nanoparticles using water extract of wheatgrass (Triticum aestivum), their characterization and comparative assessment of antibacterial potential

“…Literature showed that different labs synthesized spherical AuNPs of various sizes (5-200 nm) using leaf extract of Zingiber officinale (31), Hibiscus rosa sinensis (32), aqueous seed extract of Abelmoschus esculentus (33), buds of Syzygium aromaticum (34) etc. Similarly, BMNPs were phytofabricated in size range of 5-150 nm using different plants such as leaf extract of Piper betel (35), Plumbago zeylanica (36), Gloriosa superba (37), Antigonon leptopus (38), Chinese wolfberry fruit extract (39) and many other plants (8,40). Aqueous leaf extract of Triticum aestivum L. contains various phytochemicals which have high potential to reduce silver and gold ions into their respective NPs.…”

Green Synthesis of an Activated Carbon-Supported Ag and ZnO Nanocomposite for Photocatalytic Degradation and Its Antibacterial Activities

“…The need for environmentally friendly synthetic procedures for nanoparticles leads to a high demand for green nanotechnology [38][39][40][41][42][43]. Many parts of plants such as leaf, fruit, stem, bark, root, leaf, and bud have been utilized for the green synthesis of Ag nanoparticles.…”

Betelvine (Piper betleL.): A comprehensive insight into its ethnopharmacology, phytochemistry, and pharmacological, biomedical and therapeutic attributes

“…subtilis . 228 Green synthesized CaO calcium oxide nanoparticles from betel leaf extract, which are also able to inhibit E . coli , P .…”