So in my book the main character loses his left arm (all the way to the shoulder) and is giving a prosthetic arm but I want the arm to be bio-cybernetic like I was thinking that the metal (can use non-metals like carbon) was organic or at least has organic compounds like blood flow, cells and a working Nervous system, the arm must be combat effective and can repair itself so what I'm asking is this
What is the best way to make this happen?
Examples I could think of are cell engineering like a hard prosthetic shell then the hosts cells would then be used to make it work
Another is a living metal like element that is hard yet flexible and gets its mass from the host’s body much like our own body
I know about the body’s habit of rejecting foreign body and don’t bother saying things like if they are so advanced why they don’t just build his old arm back (let’s just say the people working on him don’t like that)
Would like to hear from you all please make this unholy union between metal and flash come true