A novel approach using plant embryos for green synthesis of silver nanoparticles as antibacterial and catalytic agent

Tran, Minh-Trong; Nguyen, Linh-Phuong; Nguyen, Dinh-Truong; Cam-Huong, T. Le; Dang, Chi-Hien; Kim, Tran Thi; Nguyen, Thanh-Danh

doi:10.1007/s11164-021-04548-x

Cited by 17 publications

(9 citation statements)

References 53 publications

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“…The antibacterial effect of the synthesised AgNPs was examined via agar the disk diffusion test method [ 9 ] using both Gram-positive and Gram-negative bacteria, Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ), as the test microorganisms. Firstly, bacterial cells from glycerol stocks were streaked on agar plates and grown overnight at 37 °C to obtain single colonies.…”

Section: Methodsmentioning

confidence: 99%

“…The synthesis of AgNPs can be achieved via chemical and physical routes, but the hazardous effects of their by-products on the environment and the high manufacturing cost are major concerns [ 6 , 7 , 8 ]. Hence, various biomolecules, including yeast, bacteria, fungi, and algae, as well as plant extracts, have been explored for the green synthesis of AgNPs [ 3 , 9 , 10 , 11 , 12 , 13 ]. Plant-mediated syntheses are used more often than other biomolecules because of their easy accessibility, biocompatibility, cost effectiveness, and excellent stability under challenging experimental settings [ 3 , 4 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

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Green Synthesis of Flower-Like Carrageenan-Silver Nanoparticles and Elucidation of Its Physicochemical and Antibacterial Properties

et al. 2023

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Herein, we report the green synthesis of flower-like carrageenan-silver nanoparticles (c-AgNPs) through a facile hydrothermal reaction at 90 °C for 2 h. The reduction of silver nitrate (AgNO3) to c-AgNPs was evident by the colour change of the solution from colourless to dark brown and further confirmed by a UV-Vis surface plasmon resonance (SPR) peak at ~420 nm. The FTIR spectra showed that the abundance of functional groups present in the carrageenan were responsible for the reduction and stabilisation of the c-AgNPs. The XRD pattern confirmed the crystalline nature and face-centred cubic structure of the c-AgNPs, while the EDX analysis showed the presence of a high composition of elemental silver (85.87 wt%). Interestingly, the morphological characterisations by SEM and FE-SEM revealed the formation of flower-like c-AgNPs composed of intercrossed and random lamellar petals of approximately 50 nm in thickness. The growth mechanism of flower-like c-AgNPs were elucidated based on the TEM and AFM analyses. The c-AgNPs displayed promising antibacterial properties against E. coli and S. aureus, with zones of inhibition ranging from 8.0 ± 0.0 to 11.7 ± 0.6 mm and 7.3 ± 0.6 to 9.7 ± 0.6 mm, respectively, as the concentration of c-AgNPs increased from 0.1 to 4 mg/mL.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Flower-Like Carrageenan-Silver Nanoparticles and Elucidation of Its Physicochemical and Antibacterial Properties

et al. 2023

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“…20 Moreover, a novel approach using plant embryos for green synthesis of silver nanoparticles was reported. 21 As is known, silver migration is a key factor that affects the application of Ag NPs. 6 The common solution is to coat Ag NPs with some substances, such as glutathione, 22 carbonates, 23 silica, 24 and so on.…”

Section: Introductionmentioning

confidence: 99%

“…Lately, Yao reported on the development of a mild synthesis method for the facile fabrication of silver nanoparticles within a confined microenvironment created by dendronized chitosan oligosaccharides . Moreover, a novel approach using plant embryos for green synthesis of silver nanoparticles was reported …”

Section: Introductionmentioning

confidence: 99%

One-Pot Biosynthesis of Carbon-Coated Silver Nanoparticles Using Palm Leaves as a Reductant and a Carbon Source

Jian,

Wang,

Zhu

et al. 2023

ACS Omega

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In this study, carbon-coated silver nanoparticles (Ag@C NPs) were synthesized with a one-pot hydrothermal method using palm leaves as a reductant and a carbon source. SEM, TEM, XRD, Raman, and UV–vis analyses were employed to characterize the as-prepared Ag@C NPs. Results showed that the diameter of silver nanoparticles (Ag NPs) and the coating thickness could be controlled by changing the amount of biomass and the reaction temperature. The diameter ranged from 68.33 to 143.15 nm, while the coating thickness ranged from 1.74 to 4.70 nm. As the biomass amount and the reaction temperature increased, the diameter of Ag NPs and the coating thickness became larger. Thus, this work provided a green, simple, and feasible method for the preparation of metal nanocrystals.

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“…However, the prolonged overuse of synthetic chemicals causes toxicity problems in the environment [5]. Therefore, it is highly important to substitute non-ecofriendly chemicals with green and biocompatible pesticides obtained from sustainable natural sources [6].…”

Section: Introductionmentioning

confidence: 99%

Essential Oil Composition of Aerial Part of Pluchea ovalis (Pers.) DC., Silver Nanoparticles Synthesis, and Larvicidal Activities against Fall Armyworm

et al. 2022

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In this study, essential oil of the aerial part of Pluchea ovalis (POEO) was isolated and employed for the synthesis of AgNPs (POEO-AgNPs). Then, larvicidal activities of POEO and PEO-AgNPs were evaluated against the larvae of fall armyworm (FAW), Spodoptera frugiderda (J. E. Smith); (Lepidoptera: Noctuidae). The potential medicinal values of P. ovalis and the lack of scientific reports on the applications of essential oils and nanoparticles of the plant species from the ecology of Ethiopia motivated the authors to carry out this research activity. The hydrodistillation technique was used for the isolation of POEO. Characterization of samples was done using gas chromatography/mass spectrometry (GC/MS), ultraviolet–visible spectroscopy (UV–Vis), scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDX), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and zeta nanoanalyzer instruments. GC/MS analysis showed that sesquiterpenes (91.27%) are the dominant chemical constituents of POEO. The characteristic UV–Vis spectra absorption of POEO-AgNPs is observed at 428 nm. SEM imaging reveals that POEO-AgNPs have a dominantly spherical shape. A strong peak of EDX at 3.0 keV shows the existence of Ag element in POEO-AgNPs. XRD analysis determines the diffraction peaks of POEO-AgNPs at 2θ of 38.2°, 44.1°, 64.6°, and 77.8° which are indexed to (111), (200), (220), and (311), respectively. The average particle size and surface potential of POEO-AgNPs are 132 nm and −64.7 mV, respectively. POEO-AgNPs were stored at room temperature and 4 °C and showed good stability for about 6 months without aggregation or dissolution. The larvicidal activity was tested at 500, 250, and 125 µg/mL of POEO solution and 100% (full strength = 0.083 g/mL), 50%, and 25% POEO-AgNPs solution against 2nd instar larvae of S. frugiderda for 3 consecutive days. LC50 and LC90 are determined as 154.88 and 11,749.00 µg/mL for POEO and 69.18 and 1318.26% for POEO-AgNPs solutions, respectively. This finding will benefit the applications of POEO and POEO-AgNPs for a sustainable eco-friendly crop pest management method.

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A novel approach using plant embryos for green synthesis of silver nanoparticles as antibacterial and catalytic agent

Cited by 17 publications

References 53 publications

Green Synthesis of Flower-Like Carrageenan-Silver Nanoparticles and Elucidation of Its Physicochemical and Antibacterial Properties

Green Synthesis of Flower-Like Carrageenan-Silver Nanoparticles and Elucidation of Its Physicochemical and Antibacterial Properties

One-Pot Biosynthesis of Carbon-Coated Silver Nanoparticles Using Palm Leaves as a Reductant and a Carbon Source

Essential Oil Composition of Aerial Part of Pluchea ovalis (Pers.) DC., Silver Nanoparticles Synthesis, and Larvicidal Activities against Fall Armyworm

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