Bioengineered silver nanoparticles using Elytraria acaulis (L.f.) Lindau leaf extract and its biological applications

Rangayasami, Aswini; Kannan, Karthik; Joshi, Swetha; Murugesan, Subban

doi:10.1016/j.bcab.2020.101690

Cited by 48 publications

(12 citation statements)

References 45 publications

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“…The both extract concentration when increased result in increased mosquito mortality rate. Similar dose-depended larvicidal activity was noticed in AgNPs in Elytraria acaulis leaf extract [ 43 ]. The synthesized ZnO-NPs shows LC 50 and LC 90 value for Cx.…”

Section: Resultssupporting

confidence: 63%

Metal oxide nanoparticle synthesis (ZnO-NPs) of Knoxia sumatrensis (Retz.) DC. Aqueous leaf extract and It’s evaluation of their antioxidant, anti-proliferative and larvicidal activities

et al. 2021

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In around the world, mosquito control is considered a most important because of the incapable of synthetic insecticides and the ecological pollution about by them. In this manner, need the eco-friendly insecticides to efficient control the mosquito disease is the need of the hour. We synthesized the eco-friendly of zinc oxide nanoparticles (ZnO-NPs) using the Knoxia sumatrensis aqueous leaf extract ( Ks- ALE) as a reducing and stabilizing agent. The synthesis of ZnO-NPs was confirmed by UV with an absorption peak at 354 nm. ZnO-NPs crystal structure was analyzed by X-ray diffraction (XRD). Fourier transform infrared spectroscopy (FT-IR) spectra revealed the chloride, cyclic alcohols, sulfonamies, carboxylic acids, oximes, phosphines, alkenes and alcohol & phenol. Field emission-scanning electron microscopy (FE-SEM) showed that the NP’s are rod shaped with 50–80 nm size and also energy dispersive spectra (EDaX) spectra showed presence of zinc. Antioxidant assay showed superior activity and evidenced by DPPH, ABTS and H 2 O 2 radical assays. Furthermore, the ZnO-NPs exhibited strong activity in MCF-7 cell line with IC 50 value is 58.87 μg/mL. Mosquito larvicidal activity of ZnO-NPs produced significant activity and excellent larvicidal activity was noticed in Cx. quinquefasciatus with LC 50 0.08, mg/mL and LC 90 19.46 mg/mL. This study suggests that synthesized ZnO-NPs using Knoxia sumatrensis leaf extract have good biological activities and it makes them an ideal candidate for pharmacological studies.

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Section: Resultssupporting

confidence: 63%

Metal oxide nanoparticle synthesis (ZnO-NPs) of Knoxia sumatrensis (Retz.) DC. Aqueous leaf extract and It’s evaluation of their antioxidant, anti-proliferative and larvicidal activities

et al. 2021

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“…Soto and his co-workers utilized fruits peel for the preparation of AgNPs and determined their antimicrobial activities against foodborne pathogens [36]. Rangayasami et al [37], Aswini et al [38], Gavade et al [39], and Gawade et al [40] used Lindau leaf extract, Ledebouria Revoluta bulb extract, Ziziphus jujuba leaf extract, and Calotropis procera leaves for the fabrication of Ag and ZnNPs for various biological and photocatalytic applications, respectively.…”

Section: Introductionmentioning

confidence: 99%

Citrus sinensis peel waste assisted synthesis of AgNPs: effect of surfactant on the nucleation and morphology

2020

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Silver nanoparticles (AgNPs) were synthesized by using Citrus sinensis peel waste extract. Optical images and UV-visible spectroscopy reveals the appearance of yellow to brown-red color and surface plasmon resonance (SPR) band at 400-480 nm, respectively, due to the formation of AgNPs. The stable perfect transparent silver sols were formed in presence of cetyltrimethylammonium bromide (CTAB). The brownish precipitates appeared with sodium dodecyl sulphate (SDS) after 3 h. The nucleation, position of SPR band and intensity depends on the head group nature of cationic and anionic micelles of SDS and CTAB. The as-prepared AgNPs were characterized using conventional techniques such as Fouriertransform infra-red, energy dispersed X-ray detector, scanning electron microscope, transmission electron microscope, and X-ray diffractometer. Zeta potential of CTAB-AgNPs was calculated and found to be stable for ca. 1 week. Molar concentration (3.3 × 10 −4 mol/L) and aggregation number (607,339.917) of DPE-AgNPs were calculated. Ascorbic acid, citric acid and total reducing sugars were estimated in dry and fresh peel extract. Gram positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria shows excellent antibacterial activities toward DPE-AgNPs.

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“…The spreading of this virus is through airborne means the virus could travel faster and furthermore. It can also spread via contaminated air, highly crowded places and reach humans additionally from the affected person, despite them not in their straight line of sight [31].…”

Section: Possible Origins Of Virusmentioning

confidence: 99%

Trends and Innovations in Biosensors for COVID-19 Detection in Air

Palani

Kannan

Radhika

2021

The Impact of the COVID-19 Pandemic on Green Societies

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Pandemic is not a word to use lightly or carelessly. It is a word that, if misused, can reason difficult fear, or unwarranted acceptance that the fight is over, foremost to needless suffering and fatality. Coronavirus disease of 2019 (COVID-19) has become a deadly disease shaking the whole world. All the countries are facing a crisis in disposing of fast diagnostics of the syndrome, able to be organized to a wide number of persons. To control the spread of this virus harmful results of coronavirus have given rise to the growth of analysis tools. In this urgent situation, many researchers and scientists are working on finding a solution to control the deadly virus. In this chapter, we focused on researching biosensors that could detect the virus in the air. People breathe about 11,000 L of polluted air that is invisible. The major purpose of this sensor is, it could be used as another method and more significant to calculate the concentration of virus in the air, but it won't be the replacement for laboratory tests. Advanced technology, time-consuming and low-cost equipment for this disease spreading virus is in need to control the pandemic at the earliest. This biosensor is prevalent and can detect even minute amounts of viruses present in the air and surroundings.

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Bioengineered silver nanoparticles using Elytraria acaulis (L.f.) Lindau leaf extract and its biological applications

Cited by 48 publications

References 45 publications

Metal oxide nanoparticle synthesis (ZnO-NPs) of Knoxia sumatrensis (Retz.) DC. Aqueous leaf extract and It’s evaluation of their antioxidant, anti-proliferative and larvicidal activities

Metal oxide nanoparticle synthesis (ZnO-NPs) of Knoxia sumatrensis (Retz.) DC. Aqueous leaf extract and It’s evaluation of their antioxidant, anti-proliferative and larvicidal activities

Citrus sinensis peel waste assisted synthesis of AgNPs: effect of surfactant on the nucleation and morphology

Trends and Innovations in Biosensors for COVID-19 Detection in Air

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