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Uptake of New Lipid-coated Nanoparticles Containing Falcarindiol by Human Mesenchymal Stem Cells

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Double-Layer Fatty Acid Nanoparticles as a Multiplatform for Diagnostics and Therapy.

María Salvador^1,2, José Luis Marqués-Fernández¹, José Carlos Martínez-García¹

¹Department of Physics and IUTA, Campus de Viesques, University of Oviedo, 33203 Gijón, Spain.

Nanomaterials (Basel, Switzerland)

|January 21, 2022

Summary

Superparamagnetic iron oxide nanoparticles with fatty acid coatings show promise for cancer diagnostics and treatment. Myristic acid nanoparticles excel in magnetic resonance imaging, oleic acid in hyperthermia, and lauric acid in biosensing.

Keywords:

biosensor inductive sensing lateral flow immunoassays magnetic hyperthermia magnetic nanoparticles magnetic relaxation magnetic resonance imaging

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Formulation and Characterization of Bioactive Agent Containing Nanodisks

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Published on: March 17, 2023

Area of Science:

Biomedical Engineering
Materials Science
Nanotechnology

Background:

Public health challenges, including cancer, necessitate advancements in early diagnosis and targeted treatments.
Magnetic nanoparticles offer potential for medical applications like magnetic resonance imaging (MRI), biosensing, and magnetic hyperthermia.
Polymeric coatings, specifically fatty acid bilayers, are crucial for tailoring nanoparticle properties like hydrophilicity and bioconjugation for biomedical use.

Purpose of the Study:

To analyze self-assembled bilayer fatty acid coatings (oleic, lauric, myristic acids) on superparamagnetic iron oxide nanoparticles (SPIONs).
To evaluate the magnetic, structural, and application-specific potential of these coated SPIONs for MRI, magnetic hyperthermia, and biosensing.
To determine the optimal fatty acid coating for specific biomedical applications.

Main Methods:

Synthesis and characterization of SPIONs with oleic, lauric, and myristic acid bilayer coatings.
Magnetic and structural property analysis of the coated nanoparticles.
Assessment of nanoparticle performance in simulated magnetic resonance imaging, magnetic hyperthermia, and lateral flow immunoassay biosensing.

Main Results:

Myristic acid-coated SPIONs exhibited superior r2 relaxivity for MRI compared to commercial iron-based agents.
Oleic acid-coated SPIONs demonstrated significant specific absorption rate values, indicating efficacy in magnetic hyperthermia.
Lauric acid-coated SPIONs showed promising results for nanolabeling in biosensing applications.

Conclusions:

Fatty acid bilayer coatings effectively functionalize SPIONs for diverse biomedical applications.
The choice of fatty acid (myristic, oleic, or lauric) dictates the SPIONs' suitability for specific uses like MRI, hyperthermia, or biosensing.
These tailored SPIONs represent a promising platform for advancing cancer diagnostics and localized therapies.