There is already a proposal for a mechanism that could explain the observation of magnetism in vaxxed people that includes Graphene Oxide as the potential cause:

[link to www.notonthebeeb.co.uk (secure)]

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What does this mean for living cells?
The answer is that the transmembrane voltage gradient of living cells is of the order of ten million volts per metre (100 mV across a 10 nm membrane).

This means that a transmembrane strand of graphene or graphene oxide (from the vaccine) could carry a huge electric current and be likely to magnetise any superparamagnetic materials such as ferritin or magnetite that may be close by.

This effect could spread like wildfire across the membrane as each magnetized particle magnetizes its neighbours and then to those of the next cell, so that the magnetic effect increases and

Ultimately, it could spread to all parts of the body via the bloodstream, starting with the blood cells themselves, including those white cells needed for our immune system, then the veins, then the heart, followed by the lungs and finally the brain.

Wherever It goes, it could wreak havoc with cell permeability and have all sorts of biological effects, including heart failure, premature Alzeimer's disease and, when the mitochondria are affected, chronic fatigue.