Surface coating effects on the sorption and dissolution of ZnO nanoparticles in soil

Baddar, Zeinah Elhaj; Matocha, Christopher J.; Unrine, Jason M.

doi:10.1039/c9en00348g

Cited by 16 publications

(13 citation statements)

References 46 publications

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“…The larger zeta potential values represent a lower degree of aggregation that leads to a higher degree of stability of nanoparticles and a smaller zaveraged hydrodynamic diameter. At lower zeta values, the nanoparticles flocculate early and the stability of the nano-suspension reduces [44]. The Zeta potential of ZnONPsin the present study was -24.0 mV, which provided evidence that the fabricated nanoparticles were moderately stable, which led to the monodispersity of the particles.…”

Section: Discussionsupporting

confidence: 50%

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Trichoderma harzianum-Mediated ZnO Nanoparticles: A Green Tool for Controlling Soil-Borne Pathogens in Cotton

Zaki

Ouf

Albarakaty

et al. 2021

JoF

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ZnO-based nanomaterials have high antifungal effects, such as inhibition of growth and reproduction of some pathogenic fungi, such as Fusarium sp., Rhizoctonia solani and Macrophomina phaseolina. Therefore, we report the extracellular synthesis of ZnONPs using a potential fungal antagonist (Trichoderma harzianum). ZnONPs were then characterized for their size, shape, charge and composition by visual analysis, UV–visible spectrometry, X-ray diffraction (XRD), Zeta potential, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX). The TEM test confirmed that the size of the produced ZnONPs was 8–23 nm. The green synthesized ZnONPs were characterized by Fourier transform infrared spectroscopy (FTIR) studies to reveal the functional group attributed to the formation of ZnONPs. For the first time, trichogenic ZnONPs were shown to have fungicidal action against three soil–cotton pathogenic fungi in the laboratory and greenhouse. An antifungal examination was used to evaluate the bioactivity of the mycogenic ZnONPs in addition to two chemical fungicides (Moncut and Maxim XL) against three soil-borne pathogens, including Fusarium sp., Rhizoctonia solani and Macrophomina phaseolina. The findings of this study show a novel fungicidal activity in in vitro assay for complete inhibition of fungal growth of tested plant pathogenic fungi, as well as a considerable reduction in cotton seedling disease symptoms under greenhouse conditions. The formulation of a trichogenic ZnONPs form was found to increase its antifungal effect significantly. Finally, the utilization of biocontrol agents, such as T. harzianum, could be a safe strategy for the synthesis of a medium-scale of ZnONPs and employ it for fungal disease control in cotton.

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Section: Discussionsupporting

confidence: 50%

“…The magnitude of the Zeta potential (−30 mV to +30 mV) indicates the potential stability of the colloidal system [44][45][46]. The Zeta potential is related to the nanoparticles' stability in the solution.…”

Section: Discussionmentioning

confidence: 99%

Trichoderma harzianum-Mediated ZnO Nanoparticles: A Green Tool for Controlling Soil-Borne Pathogens in Cotton

Zaki

Ouf

Albarakaty

et al. 2021

JoF

View full text Add to dashboard Cite

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“…Various authors have reported that NPs exhibit sorption on exchange sites and that soil parameters largely affect their behavior in the soil by regulating the sorption, dissolution, and aggregation processes (Carbone et al 2016;Baddar et al 2019) or by modifying particle surface properties, which may alter Zn availability to plants (De Santiago-Martin et al 2015;Meesters et al 2019). The high reactivity of metalbased NPs resulting from their large surface areas and small sizes could cause their aggregation to similar NPs (homoaggregation) and to natural colloids, which are also present in pore water (hetero-aggregation).…”

Section: Comparison Between Soil Zn Extractability and Zn Bioaccumulation In Plantmentioning

confidence: 99%

“…Plant responses to metallic and metal oxide NPs vary greatly with plant species (and even ecotypes), growth stages, soil properties, application methods, doses, and durations of NP exposure, as well as the specific surface area and size-related properties of NPs (Ebbs et al 2016;Kopittke et al 2019;Poynton et al 2019;Su et al 2019;Tortella et al 2019;Meesters et al 2019). The interactions of NPs with different soil components have a profound impact on their fate, transport, and behavior (Mitrano et al 2017;El Hadri et al 2018;Baddar et al 2019;Zhao et al 2019). Natural soils exhibit broader particle size distributions, more irregular grain shapes, greater variations in surface charge, and a larger variety of mineral surface types than synthetic culture media.…”

Section: Introductionmentioning

confidence: 99%

Can Diffusive Gradients in Thin Films (DGT) Technique and Chemical Extraction Methods Successfully Predict both Zn Bioaccumulation Patterns in Plant and Leaching to Groundwater in Soils Amended with Engineered ZnO Nanoparticles?

Almendros

González

Ibáñez

et al. 2020

J Soil Sci Plant Nutr

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The interactions of nanoparticles (NPs) with different soil components have impact on their fate, transport, and behavior. The present study was conducted to find operational extraction procedures for effective assessment of both plant availability and leaching to groundwater of Zn applied to soils from zinc oxide (ZnO) NPs. A greenhouse experiment was performed in lysimeters with different ZnO-NPs amounts (3, 20, and 225 mg Zn kg −1 ) in two typical soils in Central Spain. The experiment was carried out spanning the whole plant life-cycle of cherry tomato and common bean. The soil extractable Zn amounts were measured using chemical extraction procedures (the rhizosphere-based low-molecular-weight organic acids-LMWOAs-, CaCl 2 , DTPA-TEA, water-soluble-WS-, and NH 4 Ac) and the diffuse gradients in thin films (DGT) technique. The regression studies between extractable Zn concentrations and Zn concentrations in plant tissues showed that LMWOAs, CaCl 2 , WS, and the DGT technique successfully predicted Zn concentrations in all the different parts of plants. The prediction capacity of the DTPA-TEA and NH 4 Ac approaches were strongly influenced by soil type and plant species. LMWOAs, CaCl 2 , WS, and the DGT technique were the most robust approaches for evaluation of Zn bioavailability from the soils treated with ZnO-NP. Although LMWOAs and WS reagents were also able to estimate the total quantities of Zn that were leached to groundwater, the correlation improved when soil type was included as a categorical variable. DTPA-TEA and NH 4 Ac were able to predict the Zn concentrations in the plant tissues only if soil type was considered as a categorical factor.

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“…For instance, aggregation and dispersion of pristine silver (Ag) NPs suspended in natural organic matter (NOM) solution [3] and dissolution of zinc oxide NPs in soil [4] are highly capping agent dependent. Information on organic capping agents is relevant in the context of material development and synthesis, risk assessment [5,6] and biomedical applications [7].…”

Section: Introductionmentioning

confidence: 99%

Exploring the potential of laser desorption ionisation time-of-flight mass spectrometry to analyse organic capping agents on inorganic nanoparticle surfaces

et al. 2020

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Analytical techniques are in high demand for the determination of organic capping agents on surfaces of metallic nanoparticles (NPs) such as gold (Au) and silver (Ag). In this study, the potential of laser desorption ionisation time-of-flight mass spectrometry (LDI-ToF-MS) as a technique fit for this purpose is demonstrated. First, a collection of reference spectra of most commonly used organic capping agents, including small molecules and polymers was established. Second, the robustness of the method was tested towards parameters like NP core material and NP size. In a third step, the quantitative capabilities of LDI-ToF-MS were determined. Finally, the potential to detect chemical alterations of the organic capping agent was evaluated. LDI-ToF-MS is able to detect capping agents ranging from small molecules (citric acid, tannic acid, lipoic acid) to large polymers (polyvinylpyrrolidone, branched polyethylenimine and methoxy polyethylene glycol sulfhydryl) on Au and Ag NPs based on characteristic signals for each capping agent. Small molecules showed characteristic fragment ions with low intensities, whereas polymers showed intense signals of the monomeric subunit. The NP concentration range comprises about two orders of magnitude with lowest detection limits of 5 mg/L or a capping agent concentration in the lower nM range. Changes in capping agent composition are detectable at NP concentrations in the g/L range. Thus, LDI-ToF-MS is particularly suitable for characterisation of polymercapped NPs with high NP concentrations. This may be the case for quality control as part of the material synthesis and testing.

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Surface coating effects on the sorption and dissolution of ZnO nanoparticles in soil

Abstract: Soil pH and dissolved organic matter (DOM) content are among the most important factors affecting the bioavailability of Zn and the binding and dissolution of ZnO nanoparticles (NPs).

Cited by 16 publications

References 46 publications

Trichoderma harzianum-Mediated ZnO Nanoparticles: A Green Tool for Controlling Soil-Borne Pathogens in Cotton

Trichoderma harzianum-Mediated ZnO Nanoparticles: A Green Tool for Controlling Soil-Borne Pathogens in Cotton

Can Diffusive Gradients in Thin Films (DGT) Technique and Chemical Extraction Methods Successfully Predict both Zn Bioaccumulation Patterns in Plant and Leaching to Groundwater in Soils Amended with Engineered ZnO Nanoparticles?

Exploring the potential of laser desorption ionisation time-of-flight mass spectrometry to analyse organic capping agents on inorganic nanoparticle surfaces

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