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Paramagnetism

Paramagnetism

Paramagnets are materials with unpaired electrons that possess a finite magnetic moment. In the absence of a magnetic field, these moments are randomly oriented, and thus the net moment is zero. Under an external field, a torque acting on the moments tends to align them along the field's direction. However, the random thermal motion of electrons produces a torque opposite to the external field and tries to disorient the moments. These two competing effects align only a few moments along the...

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Preparation and In Vitro Characterization of Magnetized miR-modified Endothelial Cells

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Temperature-Dependent Cytokine Neutralization Induced by Magnetoelectric Nanoparticles: An In Silico Study.

Alessandra Marrella¹, Paolo Giannoni², Martina Lenzuni¹

¹Institute of Electronics, Computer and Telecommunication Engineering (IEIIT), National Research Council of Italy (CNR), 20133 Milan, Italy.

International Journal of Molecular Sciences

|January 8, 2025

Summary

This study introduces magnetoelectric nanoparticles (MENPs) for targeted cytokine denaturation. These nanoparticles use localized heat to neutralize harmful cytokines, offering a novel therapeutic strategy for chronic inflammatory conditions.

Keywords:

biological neutralization inflammatory cytokines magnetoelectric nanoparticles multiphysics modelling

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Area of Science:

Biomedical Engineering
Nanotechnology
Immunology

Background:

Inflammatory cytokines are crucial for immune homeostasis but can cause chronic inflammation if dysregulated.
Current advanced therapies aim for localized cytokine neutralization.
Magnetoelectric nanoparticles (MENPs) offer unique properties for targeted therapeutic delivery and action.

Purpose of the Study:

To investigate the potential of MENPs for targeted cytokine denaturation via localized heating.
To model the thermal effects of MENPs under magnetic fields for therapeutic applications.
To guide the development of MENP-based strategies for treating chronic inflammatory diseases.

Main Methods:

An interdisciplinary and multiphysics in silico study was conducted.
Modeling of temperature distribution generated by MENPs with microvesicle (MV) coating under external magnetic fields.
Implementation of a damage model to estimate cytokine denaturation efficacy based on design parameters.

Main Results:

MENPs can generate highly localized heat through Joule's effect under magnetic fields.
The MV coating facilitates specific antibody binding to target cytokines.
The study provides estimations of design parameters influencing cytokine denaturation efficacy.

Conclusions:

MENPs show promise as a platform for targeted thermal denaturation of cytokines.
This approach could lead to novel therapeutic strategies for inflammatory conditions.
Further development guided by these modeling results can optimize MENP-based therapies.