Preprint Article Version 1 This version is not peer-reviewed

Gold-Coated Magnetic Nanoparticles Prepared via Ultrasonic Spray Pyrolysis: A Novel Approach for Enhanced Functionalisation

Version 1 : Received: 27 September 2024 / Approved: 27 September 2024 / Online: 29 September 2024 (11:02:48 CEST)

How to cite: Kresnik, L.; Majerič, P.; Feizpour, D.; Črešnar, K. P.; Rudolf, R. Gold-Coated Magnetic Nanoparticles Prepared via Ultrasonic Spray Pyrolysis: A Novel Approach for Enhanced Functionalisation. Preprints 2024, 2024092274. https://doi.org/10.20944/preprints202409.2274.v1 Kresnik, L.; Majerič, P.; Feizpour, D.; Črešnar, K. P.; Rudolf, R. Gold-Coated Magnetic Nanoparticles Prepared via Ultrasonic Spray Pyrolysis: A Novel Approach for Enhanced Functionalisation. Preprints 2024, 2024092274. https://doi.org/10.20944/preprints202409.2274.v1

Abstract

Magnetic nanoparticles coated with gold nanoparticles are hybrid nanostructures combining the magnetic properties of iron oxide with the optical and chemical versatility of gold. The iron oxide core gives the nanoparticles magnetic functionality, which is useful in magnetic resonance imaging (MRI), targeted drug delivery, and hyperthermia treatment. The gold coating enhances biocompatibility, provides resistance to oxidation, and allows for surface functionalisation with biomolecules for targeted applications. This combination makes these nanoparticles ideal for a range of biomedical applications, including diagnostics, therapeutics, and imaging, due to their magnetic, optical, and chemical properties. Transmission electron microscopy, dynamic light scattering, zeta potential and magnetisation of nanoparticles are key techniques that provide a comprehensive understanding of the nanoparticles’ size, structure, optical properties and magnetic behaviour, which are important factors for determining their potential use in various applications.

Keywords

Magnetic nanoparticles; gold nanoparticles; transmission electron microscopy; magnetic properties

Subject

Chemistry and Materials Science, Nanotechnology

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