Is Drug Delivery System a Deterministic or Probabilistic Approach? 
 A Theoretical Model Based in the Sequence Electrodynamics-Diffusion-Bayes

The paradigm of molecular communications is applied to the concrete case for delivering electrically charged
 nanoparticles to tumor. Once them have been injecetd in blood
 it is expecetd an optimal outcome as to reduce toxicity and
 minimal dispersion of drugs in the blood stream. With a fraction
 of nanoparticles arrives to surface of tumor, the scattered part
 of injected ones can minimize the success of scheme of drug
 delivery. In this paper is presented a theory based at the
 sequence electrodynamics-diffusion-Bayes theorem. The resulting
 probability of Bayes at the end of sequence, might be telling us
 that dynamical processes based in the injection of electrically
 charged nanoparticles might be dictated by stochastic formalism
 more that biochemical approaches by which makes impossible to
 know the success or fail of drug delivery dynamics. Illustrations
 demonstrating the transition of a linear to nonlinear scenario are
 presented