Scientists say nerves use sound, not electricity. Copenhagen University researchers theorize that propagation of sonic solitons is a much more likely explanation for propagation of signal in neurons than electrical impulses.
Nanoparticle Research Offers Hope of Artificial Retinas, Prostheses. The world's first direct electrical link between nerve cells and photovoltaic nanoparticle films has been achieved by researchers at the University of Texas Medical Branch at Galveston and the University of Michigan.