Anti- blight effect of green synthesized pure and Ag-doped tin oxide nanoparticles from Averrhoa bilimbi fruit extract towards Xanthomonas oryzae-the leaf blight pathogen of rice

Sunny, Nisha Elizabeth; Shanmugam, Vijayakumar

doi:10.1016/j.inoche.2021.108866

Cited by 10 publications

(18 citation statements)

References 68 publications

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“…Similarly, the EDS spectra of Ag-doped SnO 2 nanoparticles presented in Figure D confirm the presence of Ag, Sn, and O elements, suggesting that Ag has been successfully doped into SnO 2 . Therefore, this results in strong evidence that the silver ions have been successfully incorporated into the SnO 2 nanoparticle. ,, The presence of signal carbon may come from the sample holder during the characterization of the samples …”

Section: Resultsmentioning

confidence: 82%

“…In addition, according to reported literature, Ag-based nanoparticles have the ability to damage mitochondria in cells which causes a lack of energy and leads to cell death. Similarly, the destruction of the internal structure of cells caused by the interaction of Ag + with the reactive oxygen species (ROS) generated by cells is another factor contributing to cell death. ,, Generally, the antibacterial activity of Ag-doped SnO 2 nanoparticles likely involves a combination of ROS generation, cell membrane damage, release of silver ions, nanoparticle uptake, and potential synergistic effects, all contributing to the disruption and eventual death of bacterial cells.…”

Section: Resultsmentioning

confidence: 99%

“…Finally, the sample was named as 0.2Ag-doped SnO 2 , 0.4Ag-doped SnO 2 , 0.6Ag-doped SnO 2 , 0.8Ag-doped SnO 2 , and 1.0Ag-doped SnO 2 nanoparticles. 47,48 2.5. Characterization.…”

Section: Chemicals and Reagentsmentioning

confidence: 99%

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Ginger (Zingiber officinale)-Mediated Green Synthesis of Silver-Doped Tin Oxide Nanoparticles and Evaluation of Its Antimicrobial Activity

Tiki,

Tolesa,

Tiwikrama

et al. 2024

ACS Omega

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Green synthesis of nanoparticles using plant extract is a novel development that has gained significant attention because of its low cost, nontoxicity, and environmental friendliness. In the present study, silver-doped stannic oxide (Ag-doped SnO 2 ) nanoparticle was synthesized by an eco-friendly green synthesis method. The synthesized samples were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), ultraviolet−visible spectroscopy (UV−vis), X-ray diffraction (XRD), and their antimicrobial activities were assessed against two bacteria Escherichia coli (E. coli) and Staphylococcus aureus (S. aurus) and two fungi Fusarium oxysporum (F. oxysporum) and Fusarium graminearum (F. graminearum) by using the disk diffusion method. Ag-doped SnO 2 nanoparticles show a strong and broad absorption from UV−vis spectra when compared to pure SnO 2 nanoparticles. FTIR spectral analysis revealed that the peak at 505.69 cm −1 was assigned to Sn−O and O−Sn−O stretching vibration of SnO 2 nanoparticles. XRD analysis confirmed the formation of a tetragonal rutile structure with average particle size ranging from 10 to 17 nm. The antimicrobial result indicates that the Ag-doped SnO 2 revealed significant antimicrobial activity against both bacterial and fungi strains with the zone of inhibition of 29 ± 0.54, 27 ± 0.05, 17 ± 0.05, and 15 ± 0.05 mm for S. aureus, E. coli, F. oxysporum , and F. graminearum, respectively. Thus, the studies suggested that Ag-doped SnO 2 nanoparticles exhibit good activity against both Gram-negative and Gram-positive bacteria and fungi. This is because doping SnO 2 nanoparticles with metallic elements such as Ag has been used to enhance their performance, confirming them as a good candidate for antimicrobial agents and the development of future therapeutic agents

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

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Ginger (Zingiber officinale)-Mediated Green Synthesis of Silver-Doped Tin Oxide Nanoparticles and Evaluation of Its Antimicrobial Activity

Tiki,

Tolesa,

Tiwikrama

et al. 2024

ACS Omega

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“…To circumvent these constraints, metals, non-metals, metal oxides, fibres etc are incorporated into SnO 2 systems in diverse ways. Research studies have shown that SnO 2 is doped with metals such as Ag, Cu, Au, etc to improve its photocatalytic efficacy due to the alteration of SnO 2 's bandgap and occurrence of defects [31][32][33][34]. When applied to a metal oxide photocatalyst, 'Ag' is a very attractive, cost-effective and non-toxic metal that may obstruct electron-hole pairs recombination.…”

Section: Introductionmentioning

confidence: 99%

Investigation of sunlight driven SPR assisted photocatalytic activity of Ag doped SnO₂ nanoparticles

Mahanta,

Chetri,

Bora

2023

Phys. Scr.

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Photocatalysis triggered by visible light has emerged as a viable method for addressing environmental pollution and the energy crisis in our society. Numerous metal oxide semiconductors are transformed into visible light active photocatalysts by adopting some straightforward methods. One such efficient way of creating a visible light active photocatalyst is doping a pure semiconductor with plasmonic metal nanoparticles. Our work thoroughly investigates the photocatalytic properties of pure SnO2 nanoparticles (NP) and SnO2 doped with 1%, 3%, and 5% ‘Ag’ under sunlight. These samples are prepared using a straightforward sol–gel approach, followed by a hydrothermal procedure. To examine the different properties and morphology of the synthesized samples, several analytical tools, including UV–visible spectrometer, XRD, XPS, TEM, PL spectrometer and FTIR are used. Analysis of UV-visible absorbance spectra shows a noticeable narrowing of the band gap with increased ‘Ag’ doping. XRD analysis confirms the tetragonal structure of all samples. Methyl orange (MO) dye is used as an imitation of an organic pollutant to examine the photocatalytic activity under sunlight. When compared to pure SnO2 NP, every ‘Ag’ doped SnO2 NP sample exhibits a considerable improvement in the photodegradation of methyl orange. Analysis of PL spectra of SnO2 NPs doped with ‘Ag’ suggests that the major causes of this enhancement in photocatalysis are surface defects and the surface plasmon resonance (SPR) effect caused by ‘Ag’ doping. The scavenging test claims that the holes are the primary and the superoxide radicals are the secondary reactive species which are responsible for MO degradation under sunlight.

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“…Oryzae ( Xoo ). Since it was discovered in Japan in 1884, the incidence of BB has gradually expanded and spread to major rice-producing countries such as East Asia and Southeast Asia ( Elizabeth Sunny and Kumar Shanmugam, 2021 ). Now BB has spread to various rice-producing areas in the world, such as Africa, America, and Asia, to varying degrees ( Fiyaz et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of rice bacterial blight severity from lab to field with hyperspectral imaging technique

Bai

Zhou²,

Feng³

et al. 2022

Front. Plant Sci.

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Hyperspectral imaging technique combined with machine learning is a powerful tool for the evaluation of disease phenotype in rice disease-resistant breeding. However, the current studies are almost carried out in the lab environment, which is difficult to apply to the field environment. In this paper, we used visible/near-infrared hyperspectral images to analysis the severity of rice bacterial blight (BB) and proposed a novel disease index construction strategy (NDSCI) for field application. A designed long short-term memory network with attention mechanism could evaluate the BB severity robustly, and the attention block could filter important wavelengths. Best results were obtained based on the fusion of important wavelengths and color features with an accuracy of 0.94. Then, NSDCI was constructed based on the important wavelength and color feature related to BB severity. The correlation coefficient of NDSCI extended to the field data reached -0.84, showing good scalability. This work overcomes the limitations of environmental conditions and sheds new light on the rapid measurement of phenotype in disease-resistant breeding.

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Anti- blight effect of green synthesized pure and Ag-doped tin oxide nanoparticles from Averrhoa bilimbi fruit extract towards Xanthomonas oryzae-the leaf blight pathogen of rice

Cited by 10 publications

References 68 publications

Ginger (Zingiber officinale)-Mediated Green Synthesis of Silver-Doped Tin Oxide Nanoparticles and Evaluation of Its Antimicrobial Activity

Ginger (Zingiber officinale)-Mediated Green Synthesis of Silver-Doped Tin Oxide Nanoparticles and Evaluation of Its Antimicrobial Activity

Investigation of sunlight driven SPR assisted photocatalytic activity of Ag doped SnO₂ nanoparticles

Evaluation of rice bacterial blight severity from lab to field with hyperspectral imaging technique

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Anti- blight effect of green synthesized pure and Ag-doped tin oxide nanoparticles from Averrhoa bilimbi fruit extract towards Xanthomonas oryzae-the leaf blight pathogen of rice

Cited by 10 publications

References 68 publications

Ginger (Zingiber officinale)-Mediated Green Synthesis of Silver-Doped Tin Oxide Nanoparticles and Evaluation of Its Antimicrobial Activity

Ginger (Zingiber officinale)-Mediated Green Synthesis of Silver-Doped Tin Oxide Nanoparticles and Evaluation of Its Antimicrobial Activity

Investigation of sunlight driven SPR assisted photocatalytic activity of Ag doped SnO2 nanoparticles

Evaluation of rice bacterial blight severity from lab to field with hyperspectral imaging technique

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Investigation of sunlight driven SPR assisted photocatalytic activity of Ag doped SnO₂ nanoparticles