Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability

Cancer treatment research focuses on overcoming the limitations of conventional treatment methods, especially in addressing treatment-resistant malignancies. Magnetic hyperthermia (MH) is an innovative approach that uses superparamagnetic iron oxide nanoparticles (SPIONs) to increase the temperature...

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Main Authors: Joana Santos, Jorge Carvalho Silva, Manuel A. Valente, Tânia Vieira, Paula I.P. Soares
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Next Nanotechnology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2949829525000105
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author Joana Santos
Jorge Carvalho Silva
Manuel A. Valente
Tânia Vieira
Paula I.P. Soares
author_facet Joana Santos
Jorge Carvalho Silva
Manuel A. Valente
Tânia Vieira
Paula I.P. Soares
author_sort Joana Santos
collection DOAJ
description Cancer treatment research focuses on overcoming the limitations of conventional treatment methods, especially in addressing treatment-resistant malignancies. Magnetic hyperthermia (MH) is an innovative approach that uses superparamagnetic iron oxide nanoparticles (SPIONs) to increase the temperature locally, triggering cancer cell death. However, challenges related to the SPIONs coating impact their stability and MH heating mechanism, hindering its clinical adoption. This work explores diverse SPIONs coating options - oleic acid (OA), dimercaptosuccinic acid (DMSA), and (3-aminopropyl)triethoxysilane (APTES), to improve SPIONS stability under storage while keeping their heating capacity. OA- and DMSA-coated SPIONs, both negatively charged NPs, exhibited similar behavior in protein corona formation and MH tests. The heating capacity of the three types of SPIONs was maintained after 1 month of storage; however, these values significantly decreased to about 60 % of the initial value after 6 months. APTES-coated SPIONs displayed higher protein corona formation, mainly related to the positively charged surface. Interaction studies with three cell lines (fibroblasts, melanoma, and macrophages) revealed enhanced internalization of APTES-coated SPIONs. Only APTES-coated SPIONs achieved therapeutic temperatures in MH assays, reducing melanoma cell viability significantly. The study underscores the importance of nanoparticle surface modifications and the complexity of factors influencing treatment efficacy. Further research is essential for a better understanding of the cell death mechanism induced by MH and for its clinical translation.
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spelling doaj-art-2232ea80140b456f88233a0cdcb22e282025-02-07T04:48:37ZengElsevierNext Nanotechnology2949-82952025-01-017100141Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stabilityJoana Santos0Jorge Carvalho Silva1Manuel A. Valente2Tânia Vieira3Paula I.P. Soares4i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, Caparica 2829-516, Portugal; i3N/CENIMAT, Department of Physics, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, Caparica 2829-516, Portugali3N/CENIMAT, Department of Physics, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, Caparica 2829-516, PortugalPhysics Department (i3N), University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugali3N/CENIMAT, Department of Physics, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, Caparica 2829-516, Portugali3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, Caparica 2829-516, Portugal; Corresponding author.Cancer treatment research focuses on overcoming the limitations of conventional treatment methods, especially in addressing treatment-resistant malignancies. Magnetic hyperthermia (MH) is an innovative approach that uses superparamagnetic iron oxide nanoparticles (SPIONs) to increase the temperature locally, triggering cancer cell death. However, challenges related to the SPIONs coating impact their stability and MH heating mechanism, hindering its clinical adoption. This work explores diverse SPIONs coating options - oleic acid (OA), dimercaptosuccinic acid (DMSA), and (3-aminopropyl)triethoxysilane (APTES), to improve SPIONS stability under storage while keeping their heating capacity. OA- and DMSA-coated SPIONs, both negatively charged NPs, exhibited similar behavior in protein corona formation and MH tests. The heating capacity of the three types of SPIONs was maintained after 1 month of storage; however, these values significantly decreased to about 60 % of the initial value after 6 months. APTES-coated SPIONs displayed higher protein corona formation, mainly related to the positively charged surface. Interaction studies with three cell lines (fibroblasts, melanoma, and macrophages) revealed enhanced internalization of APTES-coated SPIONs. Only APTES-coated SPIONs achieved therapeutic temperatures in MH assays, reducing melanoma cell viability significantly. The study underscores the importance of nanoparticle surface modifications and the complexity of factors influencing treatment efficacy. Further research is essential for a better understanding of the cell death mechanism induced by MH and for its clinical translation.http://www.sciencedirect.com/science/article/pii/S2949829525000105Protein coronaSuperparamagnetic iron oxide nanoparticlesMagnetic hyperthermiaNanotechnologyStability
spellingShingle Joana Santos
Jorge Carvalho Silva
Manuel A. Valente
Tânia Vieira
Paula I.P. Soares
Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
Next Nanotechnology
Protein corona
Superparamagnetic iron oxide nanoparticles
Magnetic hyperthermia
Nanotechnology
Stability
title Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
title_full Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
title_fullStr Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
title_full_unstemmed Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
title_short Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
title_sort enhancing magnetic hyperthermia investigating iron oxide nanoparticle coating and stability
topic Protein corona
Superparamagnetic iron oxide nanoparticles
Magnetic hyperthermia
Nanotechnology
Stability
url http://www.sciencedirect.com/science/article/pii/S2949829525000105
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AT manuelavalente enhancingmagnetichyperthermiainvestigatingironoxidenanoparticlecoatingandstability
AT taniavieira enhancingmagnetichyperthermiainvestigatingironoxidenanoparticlecoatingandstability
AT paulaipsoares enhancingmagnetichyperthermiainvestigatingironoxidenanoparticlecoatingandstability