In his novel ‘Prey’, Michael Crichton created the fictional world of nanotechnology running amok in human life. Some believe that the tiny particles have the capability of reversing the aging process in humans. Is it possible for nanotechnology or the ‘power of the small’ to make man immortal? The current trend in technology does not point to that direction but some over enthusiasts feel that some time in the distant future nanotechnologists could decode the mystery of life and death. Currently the smallest human-made particle is 20 nanometers in diameter. A human red blood cell is 10,000 nanometers in diameter. By building an autonomous robot 1/10,000th time that of a red blood cell, it would be possible to program it in such a way that the tiny robot could reverse the aging process in humans when once inserted in the body cells. The interior of the human body would then replicate an ocean of floating nanobots commanding human metabolism.
While the concept of nanobots is in the theoretical stage but nanotechnology has been expanded to anti-aging treatments by direct infusion of electrons in the skin via nano current that is equivalent to over one-billionth of an ampere. Nanotechnology is currently used widely in dermatology and in regenerative medicine research. However, nanobots have not been tested yet but some nano devices have been found to work on a number of animal specimens. It has been possible to cure type-1 diabetes in rats with a blood cell-sized device. Scientists at MIT have been able to develop microscopic devices that can remove cancer cells from the blood stream and destroy them. Given the current rate of acceleration in technology, in the next two or three decades these devices are expected to become powerful enough to work inside human cells.