Ferrite Nanocubes Coupled with Gold Nanorods: A Plasmonic Leap in Hyperthermia Efficiency

Martinez-Boubeta, Carlos ; Simeonidis, Konstantinos ; Maniotis, Nikolaos ; Natividad, Eva (Universidad de Zaragoza) ; Sanles, Marcos ; Luo, Zhishan ; Cadavid, Doris ; Martí-Sánchez, Sara ; Mata, María de la ; Arbiol, Jordi ; Cabot, Andreu

Resumen: Plasmonic nanostructures provide a versatile platform for modulating nanoscale energy transfer processes. Herein, we report a magnetoplasmonic nanofluid comprising core–shell MnFe2O4@Fe3O4 nanocubes and gold nanorods that exhibits significantly enhanced magnetic hyperthermia performance under kHz-range alternating magnetic fields. A marked increase in heating efficiency, up to 50% higher specific absorption rate (SAR) compared to the ferrite-only control samples, was observed when the plasmon resonance of the Au nanorods aligned with near-infrared optical transitions of the ferrite nanocubes. This enhancement is attributed to the polariton-like hybridization phenomenon in the near field. Such findings open potential avenues for engineering multifunctional nanomaterials for targeted cancer therapy and theragnostic applications.

Idioma: Inglés

DOI: 10.1021/acsanm.5c05187

Año: 2026

Publicado en: ACS APPLIED NANO MATERIALS 9, 5 (2026), 2442-2452
ISSN: 2574-0970

Financiación: info:eu-repo/grantAgreement/ES/MICINN-AEI/PRTR-C17.I1
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CEX2021-001214-S
Financiación: info:eu-repo/grantAgreement/EUR/MICIU/PID2023-150767OB-I00

Tipo y forma: Article (Published version)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)