proteins modified to contain more iron and function as electrodes in brain cell

from what I understand from some internet searches is that the human biological brain uses chemical signals to communicate between brain cells 

brain chip interfaces communicate with electric signals 

proteins modified to consist of more iron to function as electrodes placed or produced in brain cells 

which communicate electrically with swarms of tiny brain chip interfaces 

which communicate through radio with prosthetic limb 

proteins could be modified to consist of more iron so that those proteins could be used as electrodes that are inserted in brain cells 

bacteria could be modified to produce those artificial proteins 

even better if brain cells could be genetically modified to produce their own artificial proteins consisting of lots of iron to function as electrodes 

existing brain cells could probably be genetically modified with viruses 

proteins can consist of different metals, such as: iron, calcium and some more 

swarms of separate micrometer size radio chips containing nanometer size transistors could be used as brain computer interface which could be sprayed on the surface of the brain 

those micrometer size chips would communicate electrically with proteins functioning as electrodes in brain cells 

and if need be, those chips could be injected into bloodstream and flow into different places in the brain 

commercially available transistors are nanometer in size, but chips are centimeters in size, 

the difficult part would be to cheaply mass produce micrometer size chips made of nanometer transistors, 

these technologies could benefit healthcare and it's just a question of time before tiny electronics replace chemicals in healthcare