Improved Yield of Green Synthesized Crystalline Silver Nanoparticles With Potential Antioxidant Activity

Sood, Richa; Chopra, Dimple

doi:10.7897/2230-8407.080457

Cited by 12 publications

(6 citation statements)

References 30 publications

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“…The remaining cell-free filtrate was used as control. Percentage yield was calculated according to weight of lyophilized silver nanoparticles and weight of silver nitrate used in the reaction, as previously reported [26].…”

Section: Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

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Biofilm Eradication Using Biogenic Silver Nanoparticles

et al. 2020

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Microorganisms offer an alternative green and scalable technology for the synthesis of value added products. Fungi secrete high quantities of bioactive substances, which play dual-functional roles as both reducing and stabilizing agents in the synthesis of colloidal metal nanoparticles such as silver nanoparticles, which display potent antimicrobial properties that can be harnessed for a number of industrial applications. The aim of this work was the production of silver nanoparticles using the extracellular cell free extracts of Phanerochaete chrysosporium, and to evaluate their activity as antimicrobial and antibiofilm agents. The 45–nm diameter silver nanoparticles synthesized using this methodology possessed a high negative surface charge close to −30 mV and showed colloidal stability from pH 3–9 and under conditions of high ionic strength ([NaCl] = 10–500 mM). A combination of environmental SEM, TEM, and confocal Raman microscopy was used to study the nanoparticle-E. coli interactions to gain a first insight into their antimicrobial mechanisms. Raman data demonstrate a significant decrease in the fatty acid content of E. coli cells, which suggests a loss of the cell membrane integrity after exposure to the PchNPs, which is also commensurate with ESEM and TEM images. Additionally, these biogenic PchNPs displayed biofilm disruption activity for the eradication of E. coli and C. albicans biofilms.

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Section: Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

“…Raman band assignment of microbial cells, control and treated cells with PchNPs. The band assignment was made based on previous work[26].…”

mentioning

confidence: 99%

Biofilm Eradication Using Biogenic Silver Nanoparticles

et al. 2020

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“…The yield percentage of green synthesized and chemically synthesized IONPs were 48% and 31.6% respectively. The percentage of yield is calculated using the given formula [42].…”

Section: Uv Visible Spectrophotometric Analysismentioning

confidence: 99%

One-Pot Facile Green Synthesis of Iron Oxide Nanoparticles Using Aqueous Stem Extract of Amaranthus Campestris and Comparison of its Characteristics with Chemically Synthesized Iron Oxide Nanoparticles

Hazel

Nallathambi

2022

Preprint

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Nanomaterial is defined as a material with the size range of 1 nm to 100 nm. Nanomaterials have landed in many sectors due to its enormous characteristics features. Nanoparticles are synthesized by chemical, physical and biological method in general. The chemical synthesis process comprises limitations like high production cost, usage of toxic chemicals, toxic by-product emission etc., Green synthesized iron oxide nanoparticle (IONPs) are preferred due to higher biocompatibility, non toxicity, cost effective, high yield, less energy consumption, environment friendly by products, less usage of chemicals and eco friendly nature. Green synthesis uses plant extracts (roots, leaves, stem, flowers and fruits) and microorganism (bacteria, fungus and algae) for the iron oxide nanoparticle (IONPs) development. Synthesis of plant mediated nanoparticles has obtained more notice in recent times. In this research, synthesis of iron oxide nanoparticles with desired properties has done by green synthesis method using Amaranthus Campestris plant stem extract and chemical method. This article summarizes the synthesis process and characterizations of obtained iron oxide nanoparticle (IONPs) through chemical and biological route. The comparisons between chemically and green synthesized magnetic iron oxide nanoparticle have done using various characterization methods such as FTIR, FE-SEM, XRD,VSM, UV visible Spectroscopy and antimicrobial activity.

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“…For example, it has been demonstrated that gold, silver, and selenium nanoparticles can help reduce oxidative stress because of their ability to get rid of redox-active radicals. [11][12][13][14] Silver nanoparticles (AgNPs) are one of the most common and remarkable nanomaterials among the many metallic nanoparticles used in medical applications. 15,16 Due to their many potentials uses in biomedicine, AgNPs have gained more and more attention.…”

Section: Introductionmentioning

confidence: 99%

Matcha‐silver nanoparticles reduce gamma radiation‐induced oxidative and inflammatory responses by activating SIRT1 and NLRP‐3 signaling pathways in the Wistar rat spleen

Hamed,

Taha,

Khateeb

2023

Cell Biochemistry & Function

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The biogenic synthesis of nanoparticles has drawn significant attention. The spleen is the largest lymphatic organ that is adversely impacted during irradiation. The current study was designated to evaluate the possible anti‐inflammatory effect of matcha‐silver nanoparticles (M‐AgNPs) to reduce inflammation associated with γ‐radiation induced‐oxidative stress and inflammation in rats' spleen. Silver nanoparticles (AgNPs) were synthesized by biogenic synthesis using a green sonochemical method from matcha (M) green tea. The obtained M‐AgNPs were extensively characterized by dynamic light scattering, transmission electron microscopy, thermogravimetric analysis, and Fourier‐transform infrared spectroscopy. Using zetasizer analysis, the surface charge, particle size, and radical scavenging DPPH assay of M‐AgNPs were also examined. Biocompatibility and cytotoxicity were analyzed by MTT assay, and the IC50 was calculated. Four groups of 24 Wistar rats each had an equal number of animals. The next step involved measuring the levels of oxidative stress markers in the rat splenic tissue. Additionally, the amounts of inflammatory protein expression were evaluated using the ELISA analysis. The results indicated the formation of spherical nanoparticles of pure Ag° coated with matcha polyphenols at the nanoscale, as well as uniform monodisperse particles suited for cellular absorption. Results revealed that M‐AgNPs improved all biochemical parameters. Furthermore, M‐AgNPs relieve inflammation by reducing the expression of NOD‐like receptor family pyrin domain‐containing 3 (NLRP3), interleukin‐1β (IL‐1β), and enhancing the levels of ileSnt information regulator 1 (SIRT1). Histopathological examinations demonstrated the ability of M‐AgNPs to overcome the damage consequent to irradiation and recover the spleen's cellular structure. These results confirmed that matcha is a potential biomaterial for synthesizing AgNPs, which can be exploited for their anti‐inflammatory activity.

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Improved Yield of Green Synthesized Crystalline Silver Nanoparticles With Potential Antioxidant Activity

Cited by 12 publications

References 30 publications

Biofilm Eradication Using Biogenic Silver Nanoparticles

Biofilm Eradication Using Biogenic Silver Nanoparticles

One-Pot Facile Green Synthesis of Iron Oxide Nanoparticles Using Aqueous Stem Extract of Amaranthus Campestris and Comparison of its Characteristics with Chemically Synthesized Iron Oxide Nanoparticles

Matcha‐silver nanoparticles reduce gamma radiation‐induced oxidative and inflammatory responses by activating SIRT1 and NLRP‐3 signaling pathways in the Wistar rat spleen

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