https://phys.org/news/2010-11-relativity-electrons-biologist.html
”On determining whether electrons [emphasis mine] can surpass the speed of light, Albert Einstein’s special theory of relativity [emphasis mine] contends that electrons are prevented from exceeding the speed of light as a result of the relativity of time. But Wayne contends that Einstein didn’t take the environment through which the electrons move into account.
“Given the prominence of viscous forces within and around cells and the experience of identifying and quantifying such resistive forces, biophysical cell biologists have an unique perspective in discovering the viscous forces that cause moving particles to respond to an applied force in a nonlinear manner,” he explained. “Consequently, light itself prevents charged particles from moving faster than the speed of light.
Wayne will publish a related paper, “The Relativity of Simultaneity: An Analysis Based on the Properties of Electromagnetic Waves,” in a forthcoming volume of the African Physical Review, which is a juried publication.”
I don’t know what that means so I don’t know if it answers the question.