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Updated: Mar 24, 2026

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating

Published on: February 20, 2016

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating.

Simona E Hunyadi Murph¹, George K Larsen², Robert J Lascola³

¹National Security Directorate, Savannah River National Laboratory; Simona.Murph@srnl.doe.gov.

Journal of Visualized Experiments : Jove

|March 12, 2016

Summary

This study details the straightforward synthesis of hybrid iron oxide-gold nanoparticles (Fe2O3-Au) for tunable optical properties. These multifunctional nanoparticles offer potential applications in catalysis and hyperthermia, leveraging both plasmonic and magnetic functionalities.

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Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

Area of Science:

Nanotechnology
Materials Science
Biomedical Engineering

Background:

Colloidal gold nanoparticles are commonly synthesized via chloroauric acid reduction.
Hybrid nanoparticles combine properties of constituent materials for enhanced functionality.
Iron oxide-gold (Fe2O3-Au) nanoparticles offer magnetic and plasmonic properties.

Purpose of the Study:

To develop a straightforward method for synthesizing multifunctional Fe2O3-Au nanoparticles.
To explore the potential of Fe2O3-Au nanoparticles for hyperthermia and catalysis.
To characterize the tunable optical and magnetic properties of Fe2O3-Au nanoparticles.

Main Methods:

Decoration of iron oxide nanoparticles with gold nanoparticles using a modified reduction method.
Tuning of gold nanoparticle size, shape, and loading by adjusting experimental parameters.
Photothermal experiments measuring bulk temperature change and mass loss using infrared thermocouples and a balance.

Main Results:

Achieved good control over gold nanoparticle dimensions and loading on Fe2O3.
Demonstrated tunable optical properties of Fe2O3-Au nanoparticles for VIS-NIR absorption.
Validated the potential for hyperthermia applications through plasmonic heating.

Conclusions:

Fe2O3-Au nanoparticles are easily synthesized with tunable properties for diverse applications.
The hybrid nanoparticles combine magnetic and plasmonic functionalities for advanced uses.
This method offers a scalable and accessible route to multifunctional nanomaterials.