Biomimetic synthesis of silver nanoparticles using flower extract of Bauhinia purpurea and its antibacterial activity against clinical pathogens

Sudhakar, Chinnappan; Selvam, Kandasamy; Sudalai, Arumugam; Kamala‐Kannan, Seralathan; Selvankumar, Thangaswamy; Govarthanan, Muthusamy

doi:10.1007/s11356-017-0841-1

Cited by 73 publications

(19 citation statements)

References 44 publications

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“…In recent years, the green synthesis of metal NPs gained signi cant attention due to its eco-friendly nature and massive application in the biomedical eld (Barman et al 2020;Chinnappan et al 2018;Chowdhury et al 2021). Among these NPs, silver nanoparticles (AgNPs) are gaining importance due to its signi cant biological applications like antibacterial (Govarthanan et al 2014;Shao et al 2019), antifungal (Dutta et al 2020d), antidiabetic (Shao et al 2019), anti-in ammatory (Ahmad et al 2015), antiviral (Ragaseema et al 2012), anti-angiogenesis (Vicente et al 2011), antiplatelet (Kowshik et al 2002) and anticancer (Dutta et al 2020j) activities.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of antimicrobial silver nanoparticles using fruit extract of Glycosmis pentaphylla and its theoretical explanations

Chowdhury

Ghosh

et al. 2022

Journal of Molecular Structure

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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 con rmed 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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Section: Introductionmentioning

confidence: 99%

Green synthesis of antimicrobial silver nanoparticles using fruit extract of Glycosmis pentaphylla and its theoretical explanations

Chowdhury

Ghosh

et al. 2022

Journal of Molecular Structure

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“…Many reports suggest that the biosynthesised AgNPs are non‐toxic to a human in low concentration [11, 12]. AgNPs are known to have various biological properties such as antibacterial, antifungal, antidiabetic [13], anti‐inflammatory and angiogenic activity [14].…”

Section: Introductionmentioning

confidence: 99%

Sunlight induced biosynthesis of silver nanoparticle from the bark extract of Amentotaxus assamica D.K. Ferguson and its antibacterial activity against Escherichia coli and Staphylococcus aureus

Bharali¹,

Das²,

Bhandari³

et al. 2018

IET nanobiotechnol.

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Green synthesis of nanoparticles has gained importance due to its eco-friendly, low toxicity and cost effective nature. This study deals with the biosynthesis of silver nanoparticles (AgNPs) from the bark extract of Amentotaxus assamica. The AgNPs have been synthesised by reducing the silver ions into stable AgNPs using the bark extract of Amentotaxus assamica under the influence of sunlight irradiation. The characterisation of the biosynthesised AgNPs was carried out by UV-vis spectroscopy, X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray analysis. The UV-vis spectrum showed a broad peak at 472 nm. Also, the XRD confirmed the crystalline structure of the AgNPs. Moreover, the SEM analysis revealed that the biosynthesised AgNPs were spherical in shape. Also, dynamic light scattering techniques were used to evaluate the size distribution profile of the biosynthesised AgNPs. Furthermore, the biosynthesised AgNPs showed a prominent inhibitory effect against both Escherichia coli (MTCC 111) and Staphylococcus aureus (MTCC 97). Thus the biosynthesis of AgNPs from the bark extract of Amentotaxus assamica is found to eco-friendly way of producing AgNPs compared to chemical method.

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“…To the supernatant 1.5 mM silver nitrate (AgNO 3 ) solution was added, incubated at 37°C and monitored for AgNPs synthesis. A set without AgNO 3 was used as negative control [22].…”

Section: Methodsmentioning

confidence: 99%

Bio‐fabrication of silver nanoparticles by Pseudomonas aeruginosa : optimisation and antibacterial activity against selected waterborne human pathogens

Bhatt

Gupta

Kaushik

et al. 2018

IET nanobiotechnol.

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Multiple drug resistance and treatment of contaminated water has become a serious issue in past years. Silver nanoparticles (AgNPs), being bactericidal, non-toxic, cheap and environment friendly behaviour, have drawn attention to overcome these problems. This study has been designed to synthesise AgNPs from . AgNPs formation was confirmed by colour change and UV-vis spectroscopy. Furthermore, Fourier transform infrared spectroscopy peaks demonstrated the presence of capped proteins as reducing and stabilising agent. Transmission electron microscopy micrograph revealed spherical shape AgNPs with the size ranging between 10 and 20 nm. Antibacterial activity of AgNPs was evaluated against the most prevalent waterborne pathogens enterohaemorrhagic and . Moreover, the antibacterial activity of AgNPs was tested for the treatment of contaminated water which showed attenuation in bacterial load within 8 h as demonstrated by growth kinetics data. Furthermore, AgNPs did not exhibit haemolytic effects on human red blood cells (RBCs) even at 100 mg L concentration of AgNPs. The results herein suggest that AgNPs synthesised by under optimised conditions exhibit microbicidal property against waterborne pathogens and having no toxic effect on human RBCs. These AgNPs could be employed for treatment of contaminated water after process optimisation.

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Biomimetic synthesis of silver nanoparticles using flower extract of Bauhinia purpurea and its antibacterial activity against clinical pathogens

Cited by 73 publications

References 44 publications

Green synthesis of antimicrobial silver nanoparticles using fruit extract of Glycosmis pentaphylla and its theoretical explanations

Green synthesis of antimicrobial silver nanoparticles using fruit extract of Glycosmis pentaphylla and its theoretical explanations

Sunlight induced biosynthesis of silver nanoparticle from the bark extract of Amentotaxus assamica D.K. Ferguson and its antibacterial activity against Escherichia coli and Staphylococcus aureus

Bio‐fabrication of silver nanoparticles by Pseudomonas aeruginosa : optimisation and antibacterial activity against selected waterborne human pathogens

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