Microwave-Assisted Synthesis of Water-Dispersible Humate-Coated Magnetite Nanoparticles: Relation of Coating Process Parameters to the Properties of Nanoparticles

Kostyukhin, Egor M.; Ниссенбаум, В. Д.; Abkhalimov, E. V.; Kustov, Alexander L.; Ершов, Б. Г.; Кustov, Leonid М.

doi:10.3390/nano10081558

Cited by 14 publications

(14 citation statements)

References 74 publications

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“…Correspondingly, the mean particle size of 4.08 ± 0.19 nm was determined by TEM, varying from 1-15 nm, conferring to Gaussian t of particle size distribution (Figure S5D). These results display the narrow size distribution of green synthesized IONPs, which are somehow coherent with previous studies [50][51][52][53].…”

Section: Magnetic Response Of Green Synthesized Ionpssupporting

confidence: 92%

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Ashraf

Anjum

Riaz

et al. 2021

Preprint

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Background: Changing climate enhances the survival of pests and pathogens which eventually affects the crop yield and reduces its economic value. To attain the sustainable food security, novel approaches should be employed. Nanobased agri-chemicals provide a distinctive mechanism to increase productivity and manage phytopathogens with minimum environmental distress. In-vitro and greenhouse studies were conducted to evaluate the potential of green synthesized iron oxide nanoparticles (IONPs) in suppressing the wilt infection caused by Fusarium oxysporum f.sp. lycospersici and to improve tomato growth (Solanum lycopersicum) and fruit quality. Results: Various microwave powers (100 W- 1000 W) were used to modulate the properties of green synthesize IONPs by using spinach as a starting material. The IONPs stabilized with black coffee extract were substantively characterized by X-ray diffraction analysis, fourier transform infrared spectroscopy, dielectric and impedance spectroscopy, X-ray photoelectron spectroscopy, Scanning and transmission electron microscopy and magnetization-analysis. XRD revealed cubic magnetite (Fe3O4) phase with superparamagnetic nature, detected at all microwave powers. Binding energies of Fe 2p3/2 (712.05 eV) and Fe 2p1/2 (723.9 eV) of Fe3O4 NPs was confirmed by XPS analysis observed at microwave power of 1000 W. Uniform, spherical shaped particles with an average diameter of 4 nm were confirmed by SEM and TEM analysis. Significant reduction in mycelial growth and spore germination was perceived after exposure to different treatments of IONPs. Malformed mycelium, DNA fragmentation, alternation in cell membrane and ROS production in F. oxysporum indicates antimicrobial affinity of iron oxide NPs. The particles were applied both through root (before transplantation) and foliar application (after two weeks) to infected seedlings. The IONPs significantly reduced the disease severity by an average of 47.8% resulting in increased plant growth variables at exposure to 10 µg/mL of IONPs. Analysis of photosynthetic pigment, phenolic compounds and antioxidant enzymes in root and shoots signifies an increasing trend after exposure to various concentrations of IONPs. Correspondingly, lycopene, vitamin C, total flavonoids and protein content was substantially improved in tomato fruits after treatment of IONPs. Conclusion: These findings of current investigation suggests that IONPs owned antifungal properties to subdue Fusarium wilt disease by boosting plant growth and fruit quality.

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Section: Magnetic Response Of Green Synthesized Ionpssupporting

confidence: 92%

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Ashraf

Anjum

Riaz

et al. 2021

Preprint

View full text Add to dashboard Cite

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“…The reduction of ions into metals and, subsequently, into nanoparticles is induced by the heating of the solution. This overheating is due to the fact that microwaves cause an increase in dipole–dipole interactions and, consequently, a better ionic and molecular mobility [ 51 ].…”

Section: Fabrication Of Gold Nanoparticles By Chemical Routesmentioning

confidence: 99%

Synthesis, Chemical–Physical Characterization, and Biomedical Applications of Functional Gold Nanoparticles: A Review

et al. 2021

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Relevant properties of gold nanoparticles, such as stability and biocompatibility, together with their peculiar optical and electronic behavior, make them excellent candidates for medical and biological applications. This review describes the different approaches to the synthesis, surface modification, and characterization of gold nanoparticles (AuNPs) related to increasing their stability and available features useful for employment as drug delivery systems or in hyperthermia and photothermal therapy. The synthetic methods reported span from the well-known Turkevich synthesis, reduction with NaBH4 with or without citrate, seeding growth, ascorbic acid-based, green synthesis, and Brust–Schiffrin methods. Furthermore, the nanosized functionalization of the AuNP surface brought about the formation of self-assembled monolayers through the employment of polymer coatings as capping agents covalently bonded to the nanoparticles. The most common chemical–physical characterization techniques to determine the size, shape and surface coverage of AuNPs are described underlining the structure–activity correlation in the frame of their applications in the biomedical and biotechnology sectors.

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“…The microwave irradiation time and the concentration of the reactant mainly determine the morphological parameters of the NPs. Recently, physical properties such as monodispersity and grain size of superparamagnetic magnetite NPs prepared by microwave-assisted synthesis were controlled by the injection of humate-polyanion at different stages of the synthesis [ 121 ]. Microwave-induced electric discharge was used also for the synthesis of Cu, Ni, und Zn nanoparticles from metal particles in the absence of solvents or surfactants [ 122 ].…”

Section: Current Trends In Nmnps Synthesismentioning

confidence: 99%

Current Strategies for Noble Metal Nanoparticle Synthesis

2021

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Noble metals have played an integral part in human history for centuries; however, their integration with recent advances in nanotechnology and material sciences have provided new research opportunities in both academia and industry, which has resulted in a new array of advanced applications, including medical ones. Noble metal nanoparticles (NMNPs) have been of great importance in the field of biomedicine over the past few decades due to their importance in personalized healthcare and diagnostics. In particular, platinum, gold and silver nanoparticles have achieved the most dominant spot in the list, thanks to a very diverse range of industrial applications, including biomedical ones such as antimicrobial and antiviral agents, diagnostics, drug carriers and imaging probes. In particular, their superior resistance to extreme conditions of corrosion and oxidation is highly appreciated. Notably, in the past two decades there has been a tremendous advancement in the development of new strategies of more cost-effective and robust NMNP synthesis methods that provide materials with highly tunable physicochemical, optical and thermal properties, and biochemical functionalities. As a result, new advanced hybrid NMNPs with polymer, graphene, carbon nanotubes, quantum dots and core–shell systems have been developed with even more enhanced physicochemical characteristics that has led to exceptional diagnostic and therapeutic applications. In this review, we aim to summarize current advances in the synthesis of NMNPs (Au, Ag and Pt).

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Microwave-Assisted Synthesis of Water-Dispersible Humate-Coated Magnetite Nanoparticles: Relation of Coating Process Parameters to the Properties of Nanoparticles

Cited by 14 publications

References 74 publications

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Synthesis, Chemical–Physical Characterization, and Biomedical Applications of Functional Gold Nanoparticles: A Review

Current Strategies for Noble Metal Nanoparticle Synthesis

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