Today, organ donation is giving a new lease of life to many ailing patients however can brain be added to the list of organs that can be donated? Imagine the marvels that would be back into existence if we could replicate and restore the brains of geniuses like Sir Albert Einstein or Newton or even our great leaders of the past like Mahatma Gandhi. Is it possible to model a brain and upload the contents of the real natural brain into it thereby propagating life even after death? Yes, indeed. But the brain, all its knowledge and power are destroyed after the death of man. What is it that differentiates man and puts him on the throne of the entire animal kingdom? Yes, it's the human brain, and not the human, which is the most valuable creation of God. This review work expects a positive attention from its future readers towards nanorobotics one of the marvelous sub-areas of nanotechnology. A numerous examples have been cited about the work conducted by individual scientists, engineers and different organizations. In this context a productive discussion has been carried out concerned with the future application as well as past-present research scenario of nanorobotics. Even though the nanobots have not yet been deployed in any commercial application with currently available science and technology the ongoing intensity of research & development work tends to a brighter future where we expect number of miracles with such tiny nanomachines. This is the prime concept behind all micro or nanotechnology devices.

The Smaller the size the larger are the specific surface area and energy efficiency. Apart from biomedical applications its potential use in defense, automotive &aerospace, automation of production industry,molecular chemistry, material science research and electronics-communication engineering could be estimated to visualize its tremendous accuracy, precession, smaller size, lesser weight, accessibility and efficiency. For long term future application the characterization and manufacturing techniques of Nano robots is yet to be much more developed. Abstract-Nanorobotics being a promising research and development era has gained acute attention and response from Govt.

Pyrosim 2019