[1] Although the majority of structures found in living organisms are diamagnetic, the magnetic field itself, as well as magnetic nanoparticles, microstructures and paramagnetic molecules can influence specific physiological functions of organisms under certain conditions.
The mechanism underlying nanomagnetic modulation involves the convergence of magnetochemical[3] and magneto-mechanical[4] reactions.
In 2014, biotechnicians at Monash University noticed that "the efficiency of delivery of DNA vaccines is often relatively low compared to protein vaccines" and on this basis suggested the use of superparamagnetic iron oxide nanoparticles (SPIONs) to deliver genetic materials via magnetofection because it increases the efficiency of drug delivery.
[5] As of 2021, interactions have been studied between low cost iron oxide nanoparticles (IONPs) and the main groups of biomolecules: proteins, lipids, nucleic acids and carbohydrates.
Prompted by state-owned broadcaster France24, fr:Julien Bobroff who specialises in magnetism and teaches at the University of Paris-Saclay debunked the claims of Covid-19 conspiracy theorists using an ad verecundiam argument, as follows: "A vaccine against Covid-19... that would make magnets stick to the skin once injected is absolutely impossible from a scientific standpoint.