Green synthesis of silver nanoparticles using Phoenix dactylifera seed extract and their electrochemical activity in Ornidazole reduction

Ettadili, F.E.; Azriouil, M.; Chhaibi, B.; Ouatmane, F.Z.; Alaoui, Ouafa Tahiri; Laghrib, F.; Farahi, A.; Bakasse, M.; Lahrich, S.; Mhammedi, M.A. El

doi:10.1016/j.focha.2022.100146

Cited by 8 publications

(5 citation statements)

References 34 publications

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“…The average size distribution of the green synthesized AgNPs, CuONPs, and Ag‐CuO NCs was 48.25, 330.5, and 69.80 nm, respectively. The NPs have higher surface area and smaller size, which increases their biological reactivity 32 . The NPs size plays a crucial role for biological distribution, and the smaller‐size NPs can easily penetrate the cell wall membrane.…”

Section: Resultsmentioning

confidence: 99%

“…The NPs have higher surface area and smaller size, which increases their biological reactivity. 32 The NPs size plays a crucial role for biological distribution, and the smaller-size NPs can easily penetrate the cell wall membrane. The bioreactivity of the smaller-size NPs has increased penetration into the cell wall membrane, deactivating metabolic and enzymatic dysfunctions.…”

Section: Physicochemical Characterizationmentioning

confidence: 99%

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Green synthesized AgNPs, CuONPs, and Ag‐CuO NCs to effective antibiofilm activities and their potential application in aquaculture

Manikandan,

Arumugam,

Abdul

et al. 2023

Applied Organom Chemis

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The expanded emergence of drug‐resistant microbes remains a concern to the scientific community in developing effective therapeutics. Approach of green chemistry based nanomaterials fabrication is in high demand, due to biocompatibility, non‐toxic, and high surface area that adheres more biomolecules on surface. Green fabricated silver nanoparticles (AgNPs), copper oxide nanoparticles (CuONPs), and silver–copper oxide nanocomposites (Ag‐CuO NCs) were characterized by fluorescence and Raman spectroscopy, field emission scanning electron microscopy (FE‐SEM) with energy‐dispersive X‐ray spectroscopy (EDX), and thermogravimetric (TG)/differential scanning calorimetry (DSC) analysis. Antibiofilm potential of green fabricated AgNPs, CuONPs, and Ag‐CuO NCs was tested against aquatic pathogenic microorganisms such as Aeromonas hydrophila, Pseudomonas aeruginosa, and Staphylococcus aureus. This present study deals with bacterial growth rate, biofilm inhibition, and antibiofilm architecture of AgNPs, CuONPs, and Ag‐CuO NCs under the visualization of confocal laser scanning electron microscopy (CLSM). The FE‐SEM technique was used to observe dense and compact structure (control without NPs treatment) with treatment of NPs that showed reduced amount of cell population in A. hydrophila, P. aeruginosa, and S. aureus. The effective antibiofilm inhibition of Ag‐CuO NCs was achieved by reducing micro‐colonies compared with AgNPs and CuONPs. The AgNPs, CuONPs, and Ag‐CuO NCs demonstrated antibiofilm properties against Gram‐negative and Gram‐positive bacteria, indicating a combinatorial effect of green fabricated NPs in combination with plant metabolites against pathogenic bacteria. As a result, aforementioned nano‐product merits further investigation in order to be used as a potent adjuvant therapy as antagonistic toward various bacterial diseases in aquaculture.

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Section: Resultsmentioning

confidence: 99%

Section: Physicochemical Characterizationmentioning

confidence: 99%

Green synthesized AgNPs, CuONPs, and Ag‐CuO NCs to effective antibiofilm activities and their potential application in aquaculture

Manikandan,

Arumugam,

Abdul

et al. 2023

Applied Organom Chemis

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“…The use of plant extracts, in particular, is highly recommended as a replacement for chemical methods because the resulting NPs are more stable and cost-effective [23,29,30]. Various medicinal or non-medicinal plants, such as Panax ginseng [28], Euphorbia wallichii [31], Salvia verticillata and Filipendula ulmaria [32], Phoenix dactylifera [33], Debregeasia salicifolia [34], Moringa oleifera [35], and Datura metel [36], have already been utilized in the phytofabrication and stabilization of AgNPs. To date, very few studies have been conducted to synthesize AgNPs using Cymbopogon citratus (lemongrass).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

Arsene,

Davares,

Goriainov

et al. 2024

Int J One Health

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Background and Aim: The use of bioengineered nanocomposites as antimicrobials has increased in recent years, but very few investigations have been conducted to test their effectiveness against Pseudomonas aeruginosa, a pathogen presenting public health risks that can impact both humans and animals. The aim of this study was to assess the antimicrobial potential of phytofabricated silver nanoparticles synthesized using lemongrass extract against clinical isolates of P. aeruginosa. Materials and Methods: The extraction of active compounds from the leaves of Cymbopogon citratus was performed using ethanol (80%) as a solvent, high-performance liquid chromatography-mass spectrometry was used to analyze the chemical composition of the extract, the synthesis of silver nanoparticles (AgNPs) was done using silver nitrate (AgNO3) as a precursor, and the antimicrobial and antibiofilm activity of the extract and the AgNPs phytofabricated was assessed against 10 clinical strains of P. aeruginosa. Results: Lemongrass extract was found to consist of the following main compounds: Caffeic acid (445.21 ± 32.77 μg/g), p-coumaric acid (393.32 ± 39.56 μg/g), chlorogenic acid (377.65 ± 4.26 μg/g), quinic acid (161.52 ± 17.62 μg/g), and quercetin-3-glucoside (151.35 ± 11.34 μg/g). AgNPs were successfully phytofabricated using 2.5 mM AgNO3. The ultraviolet (UV)-visible absorption spectra of the AgNPs showed a localized surface plasmon resonance at 464 nm with an absorbance of 0.32 A. The 50x hydrodynamic diameter was 50.29 nm with a surface area value of 120.10 m2/ cm3, and the volume mean diameter and Sauter mean diameter were 50.63 nm and 49.96 nm, respectively. Despite the compound found in lemongrass extract, no antimicrobial activity was observed with the extract, while AgNPs exhibited noteworthy dose-dependent antimicrobial activity with inhibition diameters up to 24 mm and minimum inhibitory concentration (MIC) and minimum bactericidal concentration ranging from 2 to 16 and 4–64 µg/mL, respectively. AgNPs also demonstrated significant antibiofilm activity by inhibiting biofilms up to 99% between MIC/2 and 2MIC. Conclusion: The present study suggests that lemongrass is a good candidate for the synthesis of AgNPs with good physicochemical characteristics and having a strong anti-pseudomonas activity. Further research is needed to assess the stability and safety of these AgNPs. Keywords: antibiofilm capacity, antimicrobial activity, green synthesis, lemongrass, Pseudomonas aeruginosa, silver nanoparticles.

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“…However, the performance of silver-based systems varies depending upon the specific method used for their synthesis and their integration with support materials. The synthesis of silver nanoparticles can be achieved using diverse strategies, which include chemical reduction in solution, electrochemical techniques, ultrasonic organic chemistry, photocatalytic reduction, microwave organic synthesis, radiation reduction, and biomass reduction [11][12][13][14][15][16][17]. The synthesized nanoparticles show various morphologies such as nanowires, nanoplates, nanoflowers, and nanocubes, depending upon the synthetic procedures utilized [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Studies toward Morphological Changes of Silver/Carbon Fiber Composites and Their Optimization for High-Performance Electrochemical Electrodes

Yeo,

Kim,

Lee

et al. 2024

International Journal of Energy Research

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The integration of micro/nanostructured metal/metal oxides with carbon-based materials has emerged as a promising approach for developing electrochemical electrodes. However, the fabrication of such hybrids entails complex and multistep procedures involving the grain boundaries and interfaces between the constituent materials, thus, degrading the overall performance. Herein, we report a facile electrothermal process (ETP) for the scalable fabrication of hybrid carbon fiber (CF) sheets integrated with tunable morphology of silver micro/nanoparticles. The application of an electric field across the layered film, consisting of AgNO3 and CF, enabled the rapid dissipation of thermochemical energy in an open-air environment via ETP. The ETP facilitated ultrafast heat dissipation within a few milliseconds, leading to the rapid decomposition of AgNO3, which resulted in the formation of liquefied Ag on the CF surface affording a reduced Ag-CF composite with adjustable structures through input power. The capability of ETP driven by controlling duration and number of electrical pulses was demonstrated by examining the corresponding physiochemical and electrochemical characteristics of the resulting composite. The Ag-CF composite fabricated using three cycles of a screened ETP pulse (1500 W and 75 ms for power and duration) acted as a supercapacitor electrode demonstrating excellent area capacitance (13 F/cm2) and exceptional capacitance retention (98% after 10,000 cycles). Thus, the utilization of ETP can provide manufacturing strategies enabling scalable synthesis of functional hybrids in vacuum-free ambient environments within milliseconds. These hybrids possess unique interfaces and particle boundaries, exhibiting considerable potential for diverse electrochemical applications.

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Green synthesis of silver nanoparticles using Phoenix dactylifera seed extract and their electrochemical activity in Ornidazole reduction

Cited by 8 publications

References 34 publications

Green synthesized AgNPs, CuONPs, and Ag‐CuO NCs to effective antibiofilm activities and their potential application in aquaculture

Green synthesized AgNPs, CuONPs, and Ag‐CuO NCs to effective antibiofilm activities and their potential application in aquaculture

Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

Studies toward Morphological Changes of Silver/Carbon Fiber Composites and Their Optimization for High-Performance Electrochemical Electrodes

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