Biological synthesis of Ag-nanoparticles using Stachys parviflora and its inhibitory potential against Xanthomonas campestris

South African Journal of Botany, Год журнала: 2023, Номер 157, С. 409 - 422

Опубликована: Апрель 15, 2023

Язык: Английский

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Green Synthesis, characterization, antimicrobial and anticancer properties of iron oxide nanoparticles mediated by Annona muricata (sour sop) leaf extract

Nanotechnology for Environmental Engineering, Год журнала: 2024, Номер 9(3), С. 437 - 444

Опубликована: Июнь 1, 2024

Язык: Английский

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Zinc oxide and copper oxide nanoparticles as a potential solution for controlling Phytophthora infestans, the late blight disease of potatoes

Discover Nano, Год журнала: 2024, Номер 19(1)

Опубликована: Июнь 22, 2024

Late blight, caused by Phytophthora infestans, is a major potato disease globally, leading to significant economic losses of $6.7 billion. To address this issue, we evaluated the antifungal activity ZnO and CuO nanoparticles (NPs) against P. infestans for first time in laboratory greenhouse conditions. Nanoparticles were synthesized via chemical precipitation method characterized using various techniques. The XRD results revealed that had pure hexagonal wurtzite crystalline structure, whereas NPs monoclinic structure. TEM images confirmed synthesis quasi-spherical with an average size 11.5 nm 24.5 NPs. UV-Vis Spectral Report showed peaks corresponding at 364 252 NPs.In vitro study, both significantly (p < 0.05) inhibited radial growth all tested concentrations compared untreated control. highest inhibitory effect 100% was observed 30 mg/L. A lower inhibition 60.4% 10 mg/L Under conditions, 100 most effective treatment controlling late efficacy 71%. followed closely, 69%. Based on these results, are recommended as promising eco-friendly fungicides management control blight after further research.

Язык: Английский

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A comparative anticancer analysis of Iron Oxide nanoparticles of Hippophae rhamnoides and Cichorium intybus found in the Karakoram Range of Gilgit Baltistan against liver cancer targeting the RhoA gene

Drug Development and Industrial Pharmacy, Год журнала: 2024, Номер unknown, С. 1 - 10

Опубликована: Сен. 3, 2024

The current research work focused on the evaluation of

Язык: Английский

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Efficient Measurement and Validation of Nitrite with 5% Nafion‐Coated with Low‐Dimensional Fe₂O₃ Nanoparticle by Linear Sweep Voltammetry Approach

ChemistrySelect, Год журнала: 2025, Номер 10(11)

Опубликована: Март 1, 2025

Abstract In this approach, low‐dimensional Fe₂O₃ nanoparticles (NPs) synthesized using wet‐chemical methods in an alkaline medium were comprehensively characterized Fourier transform infrared spectroscopy (FTIR), field‐emission scanning electron microscopy (FESEM), cyclic voltammetry (CV), X‐ray photoelectron (XPS), transmission (TEM), and diffraction (XRD) before their application nitrite sensing. These analyses detailed the morphology, optical properties, crystallinity, elemental composition, electro‐catalytic behavior. Fabricated with a 5% Nafion coating on glassy carbon electrode (GCE), NPs facilitated efficient electrochemical oxidation of through two‐electron transfer, enabling precise detection. The sensor demonstrated high sensitivity 1.66 µAmM −1 cm −2 , reproducibility, reliability, surpassing conventional detection methods. Nitrite concentration wide linear dynamic range (LDR) from 2.4 to 13.4 mM, displayed clear current response increasing applied potential. also exhibited low limit (LOD) 8.6 × 10 −6 M, quantification (LOQ) 26.1 enhanced sensitivity, selectivity, stability, consistent performance repeated tests over 50 cycles LSV. This work introduces effective approach for nanostructures, validated real environmental samples RSD between 0.415% 0.866%, whereas recoveries recorded 98% 99.38%, providing robust sustainable solution monitoring.

Язык: Английский

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A Novel Based Synthesis of Silver/Silver Chloride Nanoparticles from Stachys emodi Efficiently Controls Erwinia carotovora, the Causal Agent of Blackleg and Soft Rot of Potato

Molecules, Год журнала: 2023, Номер 28(6), С. 2500 - 2500

Опубликована: Март 9, 2023

In recent years, the biological synthesis of silver nanoparticles has captured researchers' attention due to their unique chemical, physical and properties. this study, we report an efficient, nonhazardous, eco-friendly method for production antibacterial silver/silver chloride utilizing leaf extract Stachys emodi. The se-Ag/AgClNPs was confirmed using UV-visible spectroscopy, DPPH free radical scavenging activity, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD). An intense peak absorbance observed at 437 nm from analysis. emodi showed highest activity (89.4%). FTIR analysis detected various bands that indicated presence important functional groups. SEM morphological study revealed spherical-shaped having a size ranging 20 70 nm. XRD pattern formation spherical crystal NPs. performed against Erwinia carotovora maximum inhibition by centrifuged alone (se-Ag/AgClNPs) in combination with (se-Ag/AgClNPs + LE) (LE) 98%, 93%, 62% respectively. These findings suggested biosynthesized NPs can be used control plant pathogens effectively.

Язык: Английский

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Fabrication and Characterization of Ag-Graphene Nanocomposites and Investigation of Their Cytotoxic, Antifungal and Photocatalytic Potential

Molecules, Год журнала: 2023, Номер 28(10), С. 4139 - 4139

Опубликована: Май 17, 2023

In the present study, we aimed to synthesize (Ag)1-x(GNPs)x nanocomposites in variable ratios (25% GNPs-Ag, 50% and 75% GNPs-Ag) via an ex situ approach investigate incremental effects of GNPs (graphene nanoparticles) on AgNPs (silver nanoparticles). The prepared were successfully characterized using different microscopic spectroscopic techniques, including X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, ultraviolet Raman analysis. For evaluation morphological aspects, shape, percentage elemental composition, SEM EDX analyses employed. bioactivities synthesized briefly investigated. antifungal activity was reported be 25% for 66.25% GNPs-Ag against Alternaria alternata. further evaluated cytotoxic potential U87 cancer cell lines with improved results (for pure IC50: ~150 µg/mL, ~12.5 µg/mL). photocatalytic properties determined toxic dye Congo red, degradation recorded as 38.35% 98.7% GNPs-Ag. Hence, from results, it is concluded that silver nanoparticles carbon derivatives (graphene) have strong anticancer properties. Dye strongly confirmed Ag-graphene removal toxicity organic water pollutants.

Язык: Английский

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Antibacterial Efficacy of Green Synthesized Silver Nanoparticles Using Salvia nubicola Extract against Ralstonia solanacearum, the Causal Agent of Vascular Wilt of Tomato

ACS Omega, Год журнала: 2023, Номер 8(34), С. 31155 - 31167

Опубликована: Авг. 17, 2023

Ralstonia solanacearum is a phytopathogen causing bacterial wilt diseases of tomato and affecting its productivity, which leads to prominent economic losses annually. As an alternative conventional pesticides, green synthesized nanoparticles are believed possess strong antibacterial activities besides being cheap ecofriendly. Here, we present the synthesis silver (Sn-AgNPs) from medicinally important aqueous plant extracts Salvia nubicola. Characterization biologically was performed through UV-vis spectrophotometry, Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy, diffraction, scanning electron microscopy, transmission microscopy (TEM), thermogravimetric analysis. The activity biosynthesized tested against R. in vitro experiments. Preliminary phytochemical analysis revealed presence substantial amounts flavonoids (57.08 mg GAE/g), phenolics (42.30 tannins, terpenoids. HPLC phenolic profile indicated 25 possible bioactive compounds. Results regarding conformation different functional groups FTIR analysis, could be responsible for bioreduction capping Ag ions into NPs. TEM results spherical, crystalline shape with size range 23-63 nm, validates SEM results. Different concentrations Sn-AgNPs (T1 (500 μg/mL) T7 (78.1 μg/mL)) combination (PE-Sn-AgNPs) alone exhibited efficient inhibition solanacearum. These findings used as effective preparation tomato.

Язык: Английский

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Novel nanotechnological approaches for managing Phytophthora diseases of plants

Trends in Plant Science, Год журнала: 2023, Номер 28(9), С. 1070 - 1080

Опубликована: Апрель 19, 2023

Язык: Английский

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Green synthesis of iron (III) oxide (Fe3O4) Nanoparticles Using Citrus sinensis Peel Extract for the Removal of Ciprofloxacin in Water

Journal of applied science and environmental management, Год журнала: 2024, Номер 28(3), С. 823 - 839

Опубликована: Март 27, 2024

Ciprofloxacin is a widely used antibiotic that can contaminate water sources and pose environmental health risks. Therefore, the objective of this paper to explore green synthesis iron (III) oxide nanoparticles using Citrus sinensis peel extract for removal ciprofloxacin in standard techniques. The adsorption on was investigated under different conditions, such as pH, initial concentration adsorbate, contact time, adsorbent doses. data were fitted isotherm kinetic models understand mechanism parameters. results characterization revealed particles be nanocrystalline structure with cubic crystal shape, negative surface charge, high thermal stability elemental composition primarily Fe O; it has z- average 42.60, Fe-O bond at 693.30cm-1 UV-Visible absorbance 221nm. maximum capacity 29.21 mg/g (97.45%) pH 7 room temperature 25 °C. indicated followed Langmuir model pseudo-second-order model, suggesting monolayer homogeneous finite number identical sites. synthesized showed efficiency selectivity from water, demonstrating potential an eco-friendly low-cost purification.

Язык: Английский

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