Morphology, Chemical Composition, and Magnetic Properties of Arc Discharge Fe–C Soot

Новопашин, С. А.; Serebryakova, M.A.; Зайковский, А. В.

doi:10.1007/978-3-319-46601-9_18

Cited by 4 publications

(8 citation statements)

References 12 publications

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“…These observations are in good agreement with the earlier reported ones [35][36][37]. So the IR studies directly prove the presence of carboxylic acid groups and clusters in synthesized soot.…”

Section: Environmental Emissionssupporting

confidence: 93%

Carbon Soot Polymer Nanocomposites (CSPNCs): Production, Surface Morphological, Glass Transition Temperature Phenomenon and Optical Properties

Tailor¹,

Vijay²,

Bafna³

2021

Environmental Emissions

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The present chapter covers the production and properties of carbon soot nanoparticles (CSNPCs) and their doped carbon soot polymer nanocomposites (CSPNCs). The first part of this chapter will provide a brief introduction of carbon soot, its morphology, production and synthesis methods. The second part will explain the investigation of carbon soot nanoparticles by flame deposition method and their properties. The third part will provide a short knowledge on polymer nanocomposites (PNCs) and their processing methods. The last part will illustrate the production of carbon soot polymer nanocomposites by solution casting method and their important properties. At the end, the chapter concludes with future scopes.

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Section: Environmental Emissionssupporting

confidence: 93%

Carbon Soot Polymer Nanocomposites (CSPNCs): Production, Surface Morphological, Glass Transition Temperature Phenomenon and Optical Properties

Tailor¹,

Vijay²,

Bafna³

2021

Environmental Emissions

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“…Figure 3 b shows how the magnetic susceptibility depends on the calcination temperature for the Fe-C composite. The magnetic susceptibility of the iron-carbon composite sharply decreases upon annealing at a temperature of 200°C, as in work [20]. It is associated with the oxidation of iron and iron carbide nanoparticles.…”

Section: Resultsmentioning

confidence: 83%

“…The main advantage of arc discharge synthesis is the ability to control the shape and size and composition of nanoparticles. In [19,20], iron nanoparticles in a carbon matrix were obtained by electric arc discharge and their magnetic properties were studied. It has been shown that nanoparticles are superparamagnetic, and their magnetic properties and composition substantially depend on the subsequent heat treatment after synthesis.…”

Section: Introductionmentioning

confidence: 99%

Electric arc synthesis of magnetic Mn-Fe-C nanoparticles

2022

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The aim of this research is to investigate the phase transformations and magnetic properties of nanoparticles formed during electric arc sputtering of composite Fe-Mn-C with subsequent annealing of the resulting composite in an oxygen atmosphere. As a result of the study, pure metals, mixed oxides, carbides, and carbon nanocomposites are synthesized. The magnetic susceptibility of Fe-Mn-C composites grows with an annealing temperature increase up to 600°C as compared to the ironcarbon system. The obtained methods and results can serve as a base for new synthesis techniques to obtain composite magnetic nanoparticles with a low carbon content.

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“…We used the plasma-arc method for carbon encapsulated iron nanoparticles preparation as described in [ 52 , 53 ]. Briefly, the experiments were carried out in the direct current (DC) electric arc with the current of 100 A in the buffer gas (helium) at 50 Torr.…”

Section: Methodsmentioning

confidence: 99%

Photoactivatable nanoCRISPR/Cas9 System Based on crRNA Reversibly Immobilized on Carbon Nanoparticles

Semikolenova

Sakovina

Akhmetova

et al. 2021

IJMS

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Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA. PC-DNAs contained up to three UV-sensitive linkers made of 1-(2-nitrophenyl)-1,2-ethanediol inside the oligonucleotide chain. Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3′-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity. We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.

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Morphology, Chemical Composition, and Magnetic Properties of Arc Discharge Fe–C Soot

Cited by 4 publications

References 12 publications

Carbon Soot Polymer Nanocomposites (CSPNCs): Production, Surface Morphological, Glass Transition Temperature Phenomenon and Optical Properties

Carbon Soot Polymer Nanocomposites (CSPNCs): Production, Surface Morphological, Glass Transition Temperature Phenomenon and Optical Properties

Electric arc synthesis of magnetic Mn-Fe-C nanoparticles

Photoactivatable nanoCRISPR/Cas9 System Based on crRNA Reversibly Immobilized on Carbon Nanoparticles

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