Microbots and nanobots for the treatment of cancer tumors

The use of nano and microbots as a treatment for cancerous tumors had accelerated advances during the last few years, for this reason it was considered pertinent to carry out this documentary review. An exhaustive search was carried out on the progress of their current application, their operation and the advantages and disadvantages of their use. Several nano and microbots models are inspired by bacteria and other living organisms for their properties in cancer treatment. Nanomedicines have advantages over conventional drug delivery, and the combination of these concepts results in more effective treatment of cancerous tumors. Currently, the challenges faced by nano and microbots are: surviving, for example, the immune system; locating the tumor and being located by human operators; performing the specific operation of drug release; and being eliminated from the body once their mission is completed. In the evolution of micro- and nanobots, there are increasingly more efficient models and this can translate into great benefits, the main one being the reduction of side effects, due to the precise drug release system.