Experimental Study Regarding the Synthesis of Iron Oxide Nanoparticles by Laser Pyrolysis Using Ethanol as Sensitizer; Morpho-Structural Alterations Using Thermal Treatments on the Synthesized Nanoparticles

Coatings, Journal Year: 2025, Volume and Issue: 15(2), P. 234 - 234

Published: Feb. 15, 2025

The laser pyrolysis technique was used in the synthesis of magnetic iron oxide nanopowders presence ethanol vapors as a sensitizer. This uses energy from continuous-wave CO2 operating at 9.25 μm wavelength, which is transferred to reactive precursors via excited molecules, inducing rapid heating argon-entrained Fe(CO)5 oxygen. For parametric study, different samples were prepared by changing percentages sensitizer mixture. Moreover, raw thermally treated temperatures and their morpho-structural properties investigated. results indicated high degree crystallinity (mean ordered dimension) enhanced when employed. On contrary, low concentrations, due decrease reaction temperature, nanoparticles with very size synthesized. particles have dimension range 2.5 10 nm (XRD TEM). Most them exhibited superparamagnetic behavior room saturation magnetization values up 60 emu/g. crystalline phase detected mainly maghemite, decreased carbon (up 8 at%). In addition expected Fe-OH on surfaces, C (and O) bearing functional groups such C-OH or C=O that act supplementary hydrophilic agent water-based suspension detected. Using as-synthesized nanopowders, water suspensions without agents (CMCNa, L-Dopa, chitosan) means horn ultrasonic homogenizer 0.5 mg/mL concentrations. DLS analyzes revealed some powder maintained stable agglomerates over time, mean 100 nm, pH between 4.8 5.3, zeta-potential exceeding 40 mV. All tested greatly improved stability 250–450 °C NPs, L-Dopa Chitosan smaller hydrodynamic sizes.

Language: Английский

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Updates and current states on liposomal vehicles for tumor targeting: precision therapy in the spotlight

Cancer Nanotechnology, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 10, 2025

Language: Английский

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Diagnostic applications of magnetic nanohybrids

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 169 - 200

Published: Jan. 1, 2025

Language: Английский

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Seaweed as a Sink for Microplastic Contamination: Uptake, Identifications and Food Safety Implications

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121631 - 121631

Published: April 1, 2025

Language: Английский

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Green-Synthesized Magnetic Core-Shell Nife2o4@Ag Nanoparticles Enhance Antibiotic Efficacy Against Nosocomial Pathogens

Published: Jan. 1, 2025

Language: Английский

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