Green Synthesis of Gold and Silver Nanoparticles UsingAverrhoa bilimbiFruit Extract

We report on rapid one-step green synthesis of gold and silver nanoparticles using fruit extract ofAverrhoa bilimbi Linn. UV-Vis absorption spectroscopy was used to monitor the quantitative formation of gold and silver nanoparticles. The characteristics of the obtained gold and silver nanoparticles were studied using UV-Vis absorption spectroscopy (UV/Vis), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy-dispersive spectroscopy (EDX). UV/Vis spectrum showed Surface Plasmon Resonance (SPR) for both gold and silver nanoparticles at 540 and 420 nm. The EDX spectrum of the solution containing gold and silver nanoparticles confirmed the presence of elemental gold and silver signals. The average diameter of the prepared nanoparticles in solution was about 50–150 nm. Synthesized particles were either hexagonal or rhomboidal in shape. This synthesis approach of gold and silver nanoparticles is cost effective and can be widely used in biological systems. The effect of fruit extract and metal ion concentration was also studied.

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One-step green synthesis of gold and silver nanoparticles with ascorbic acid and their versatile surface post-functionalization

RSC Advances ◽

10.1039/c6ra00194g ◽

2016 ◽

Vol 6 (39) ◽

pp. 33092-33100 ◽

Cited By ~ 52

Author(s):

Ludivine Malassis ◽

Rémi Dreyfus ◽

Ryan J. Murphy ◽

Lawrence A. Hough ◽

Bertrand Donnio ◽

...

Keyword(s):

Silver Nanoparticles ◽

Ascorbic Acid ◽

Green Synthesis ◽

Gold And Silver Nanoparticles ◽

One Step ◽

Post Functionalization

Gold and silver nanoparticles, with different sizes, have been synthesized using ascorbic acid which allows a versatile and simple post-functionalisation.

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Invertebrate Water Extracts as Biocompatible Reducing Agents for the Green Synthesis of Gold and Silver Nanoparticles

Natural Product Communications ◽

10.1177/1934578x1300800830 ◽

2013 ◽

Vol 8 (8) ◽

pp. 1934578X1300800

Author(s):

Lina Han ◽

Yeong Shik Kim ◽

Seonho Cho ◽

Youmie Park

Keyword(s):

Silver Nanoparticles ◽

Natural Products ◽

Green Synthesis ◽

Metallic Nanoparticles ◽

Reducing Agents ◽

Ion Concentration ◽

Reaction Conditions ◽

Gold And Silver Nanoparticles ◽

Water Extracts ◽

Novel Applications

We report the use of water extracts of two invertebrates, snail body and earthworm, as biocompatible reducing agents for the green synthesis of gold and silver nanoparticles. The reaction conditions were optimized by varying the extract concentration, gold ion or silver ion concentration, reaction time, and reaction temperature. The gold and silver nanoparticles exhibited their characteristic surface plasmon resonance bands. Mostly spherical and amorphous shapes of the nanoparticles were synthesized. The average diameters of the gold and silver nanoparticles were 4.56 ± 1.81 nm and 11.12 ± 5.25 nm, respectively, when the extract of snail body was used as the reducing agent. The earthworm extracts produced gold and silver nanoparticles with average diameters of 6.70 ± 2.69 nm and 12.19 ± 4.28 nm, respectively. This report suggests that the invertebrate natural products have potential as biocompatible reducing agents for the green synthesis of metallic nanoparticles. This utility would open up novel applications of invertebrate natural products as nanocomposites and in nanomedicine.

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Green Synthesis, Characterization and Antimicrobial Activity of Silver Nanoparticles Using Dudoa (Hydnocarpus alcalae C.DC.) Leaf Extract As a Reducing and Stabilizing Agent

Current Nanomaterials ◽

10.2174/2405461504666190617100254 ◽

2019 ◽

Vol 4 (2) ◽

pp. 112-124

Author(s):

Edward K.B. Bragais ◽

Lynne M. Labaclado

Keyword(s):

Antimicrobial Activity ◽

Silver Nanoparticles ◽

Green Synthesis ◽

Leaf Extract ◽

Cost Effective ◽

Endemic Plant ◽

Stabilizing Agent ◽

One Step ◽

Ft Ir ◽

Size And Morphology

Background and Objective: In this study, dudoa (Hydnocarpus alcalae C.DC.) leaf extract was used as a reducing and stabilizing agent in a novel one-step green synthesis of silver nanoparticles. Dudoa is an endemic plant in the province of Legazpi, Philippines and its seed oil was used as an anti-leprotic drug. Method: Therefore, the dudoa leaf extract was used to synthesize silver nanoparticles. Moreover, optimization of various parameters greatly affected the size and morphology of the synthesized AgNPs as indicated by the Ultraviolet-visible (UV-vis) spectrophotometry. The synthesized AgNPs were further characterized using spectral analyses such as XRD, EDX, SEM, FT-IR, TGA and DLS. The antimicrobial activity of synthesized AgNPs was also demonstrated. Results and Discussions: The synthesized AgNPs exhibited a diffraction pattern and a particle size ranging from 22-48 nm. The AgNPs also showed complete inhibitory and mild reactivity against representative pathogenic gram-positive (S.aureus) and gram-negative (E.coli) bacteria. Conclusion: Silver nanoparticles were successfully synthesized using H. alcalae leaf extract. Furthermore, this green synthesis approach appeared to be cost-effective, non-toxic, and eco-friendly which is a best alternative to the conventional chemical methods.

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Green Synthesis of Antimicrobial Silver Nanoparticles using Fruit Extract of Glycosmis Pentaphylla and its Theoretical Explanations.

10.21203/rs.3.rs-200301/v1 ◽

2021 ◽

Author(s):

Tanmoy Dutta ◽

Swapan Kumar Chowdhury ◽

Narendra Nath Ghosh ◽

Mahuya Das ◽

Asoke P. Chattopadhyay ◽

...

Keyword(s):

Silver Nanoparticles ◽

Green Synthesis ◽

Density Functional ◽

Cost Effective ◽

Human Pathogens ◽

Fruit Extract ◽

One Pot ◽

Theoretical Simulation ◽

Vis Spectroscopy ◽

Average Size

Abstract The present study reports a novel, one-pot, cost-effective, green synthesis route of silver nanoparticles (AgNPs) from the fruit extract of Glycosmis pentaphylla (FGP). The UV–vis spectroscopy (UV-Vis), dynamic light scattering (DLS) and transmission electron microscopy (TEM) studies confirmed that the synthesis produces stable, monodispersed AgNPs with an average size of 17 nm. Theoretical simulation using density functional theory (DFT) established that among the different compounds of FGP, arborine is mainly responsible for the stabilization of AgNPs with a binding energy of 58.45 kJ/mol. Synthesized AgNPs showed strong antifungal and antibacterial activity. The synergistic study of AgNPs with fungicide Bavistin and antibiotic Streptomycin produced remarkable morphological abnormalities of A. alternata as observed under the light microscope. Hence, the AgNPs synthesis approach is a progressive step towards various applications to soon control crop and human pathogens.

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Green Synthesis of Silver Nanoparticles Using Momordica Charantia Fruit Extracts

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1109.35 ◽

2015 ◽

Vol 1109 ◽

pp. 35-39 ◽

Cited By ~ 2

Author(s):

M.K. Nahar ◽

Zarina Zakaria ◽

U. Hashim ◽

Md Fazlul Bari

Keyword(s):

Silver Nanoparticles ◽

Green Synthesis ◽

Cost Effective ◽

Momordica Charantia ◽

Ion Concentration ◽

Biological Synthesis ◽

Synthesis Of Nanoparticles ◽

Fruit Extracts ◽

Absorbance Peak ◽

First Time

The synthesis of nanoparticles is in the spotlight in modern nanotechnology. In recent years, the development of competent green chemistry methods for synthesis of metal nanoparticles (NPs) has become a main limelight of researchers. Biological synthesis of nanoparticles using plant extract is currently under exploitation. The first time in this paper we have reported the green synthesis of silver nanoparticles (AgNPs) by reduction of silver nitrate, using fruit extracts of Momordica charantia (bitter melon); commonly found plant in south East Asia. The reaction process for the synthesis of silver nanoparticles is simple, cost-effective, novel, rapid and eco-friendly route using fruit extract of M. charantia plant, which acted as a reducing and stabilizing agent simultaneously at room temperature. Formation of the nanosilver was confirmed by surface Plasmon spectra using UV-Vis spectrophotometer and absorbance peak at 440 nm. Different silver ion concentration and contact times were experimenting in the synthesis of silver nanoparticles. The prepared nanoparticles properties were characterized by UV-Vis.

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One-pot green synthesis of gold and silver nanoparticles using Rosa canina L. extract

RSC Advances ◽

10.1039/d1ra01448j ◽

2021 ◽

Vol 11 (24) ◽

pp. 14624-14631

Author(s):

Pablo Eduardo Cardoso-Avila ◽

Rita Patakfalvi ◽

Carlos Rodríguez-Pedroza ◽

Xochitl Aparicio-Fernández ◽

Sofía Loza-Cornejo ◽

...

Keyword(s):

Silver Nanoparticles ◽

Green Synthesis ◽

Aqueous Extract ◽

Room Temperature ◽

One Pot ◽

Gold And Silver Nanoparticles ◽

Rosa Canina ◽

Capping Agents

Gold and silver nanoparticles were synthesized at room temperature using an aqueous extract from dried rosehips acting as reducing and capping agents with no other chemicals involved.

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