Recent publications reflect an interest in analyzing different drug and gene delivery systems in cancer and infectious diseases. We have been developing different methods to manufacture biocompatible nanoparticles and coatings for different drugs, we have focused on the use of drugs that induce apoptosis and genes that also induce apoptosis to search for synergy mechanisms. On the other hand, we have also analyzed other targeted delivery systems, in this sense we have advanced in the study of bacteria that have the ability to target hypoxic regions or areas and are safe for human use, bifidobacteria are used for targeted delivery of apoptosis-inducing drugs and genes in tumors. We are recently making progress in the production of various electroactive nanomaterials for use as immunoelectrochemical sensors for the detection of emerging pathogenic viruses.