An Insight into the Insecticidal Activity of Green Synthesized Silver Nanoparticles

Amirthalingam Rajesh,; Gunabalan Madhumitha,

doi:10.1134/s1061933x23600045

Cited by 3 publications

(1 citation statement)

References 56 publications

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“…Microorganisms, plants, fungi, spiders, and some insects are for the most part exploited for green synthesis [21] [22] [23] [24]. Insects such as American roaches and termites have been explored as ecofriendly, cost effective and novel biomaterial for the biosynthesis of silver nanoparticles [22] [23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles from Honeybees and Its Antibacterial Potential

Ewunkem,

Johnson,

Beard

et al. 2024

OJMM

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Honeybees (Apis mellifera) are important pollinators of flowering plants and agricultural crops contributing annually to billions of dollars in revenues to crop production. Honeybees have an average lifespan between 8 weeks to 5 years. Dead honeybees are abundantly available in beehives and can be utilized as an alternative source to synthesize nanoparticles. In recent years, biologically synthesized nanoparticles have been preferred over their chemical counterparts. However, honeybee-based-green synthesis of nanoparticles has not been explored yet. Herein, we report the biosynthesis of silver nanoparticles from honeybees and its antibacterial activity. The synthesis of silver nanoparticles was monitored visually through a gradual change in color. Furthermore, the biosynthesized nanoparticles were confirmed and characterized by UV-visible spectroscopy. Scanning Electron Microscope was utilized to analyze the average size and morphologies of the biosynthesized nanoparticles. Subsequently, the antibacterial potential of the biosynthesized silver nanoparticles was tested against selected Gram-positive and Gram-negative bacterial strains. It was found that a distinct color change from yellow to brown in the reaction solution suggested the formation of silver nanoparticles. The biosynthesized nanoparticles exhibited absorption maxima at 430 nm. The SEM analysis confirmed the spherical and cuboidal shape of the biosynthesized silver nanoparticles with a size range between 10 -40 nm. Furthermore, the biosynthesized silver nanoparticles exhibited strong antimicrobial potential against tested Gram-positive and Gram-negative bacteria strains by aggregating on the cell surface. This study showcases the biomedical and agricultural applications of biosynthesized silver nanoparticles from honeybee wings.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles from Honeybees and Its Antibacterial Potential

Ewunkem,

Johnson,

Beard

et al. 2024

OJMM

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Utilization of herbivore defensive latex from the weed Calotropis procera L in the green synthesis of silver nanoparticles and its potential application in the control of dengue vector Aedes aegypti

Harisma,

Jenifer Annis,

Benazir Begum

et al. 2024

Journal of Natural Pesticide Research

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Oxidative Dissolution and the Aggregation of Silver Nanoparticles in Drinking and Natural Waters: The Influence of the Medium on the Process Development

Ershov,

Ershov

2024

Toxics

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Currently, there are quite a few data on the ways silver nanoparticles get into the aquatic environment, on their subsequent dissolution in water, and on the release of toxic Ag+ ions. Differences in the experimental conditions hinder the determination of the basic regularities of this process. In this study, the stages of oxidative dissolution of AgNPs were studied, starting from the formation of silver hydrosol in deaerated solution, the reaction of silver with oxygen and with drinking and natural waters, the analysis of intermediate species of the oxidized colloidal particles, and the subsequent particle aggregation and precipitation, by optical spectroscopy, DLS, TEM, STEM, and EDX. In the presence of oxygen, silver nanoparticles undergo oxidative dissolution, which gives Ag+ ions and results in the subsequent aggregation of nanoparticles. The carbonate hydrosol loses stability when mixed with waters of various origin. This is due to the destruction of the electric double layer, which is caused by an increase in the solution’s ionic strength and the neutralization of the charge of the metal core. The environmental hazard of the silver nanoparticle hydrosol would noticeably change and/or decrease when the nanoparticles get into natural waters because of their fast precipitation and because the major part of released Ag+ ions form poorly soluble salts with ions present in water.

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An Insight into the Insecticidal Activity of Green Synthesized Silver Nanoparticles

Cited by 3 publications

References 56 publications

Synthesis of Silver Nanoparticles from Honeybees and Its Antibacterial Potential

Synthesis of Silver Nanoparticles from Honeybees and Its Antibacterial Potential

Utilization of herbivore defensive latex from the weed Calotropis procera L in the green synthesis of silver nanoparticles and its potential application in the control of dengue vector Aedes aegypti

Oxidative Dissolution and the Aggregation of Silver Nanoparticles in Drinking and Natural Waters: The Influence of the Medium on the Process Development

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