ABSTRACT
In his groundbreaking lecture “There’s Plenty of Room at the Bottom” delivered in the December of 1959 at Caltech, physicist Richard Feynman planted the seed of what is now called the “Nanotechnology.” As of today, nanotechnology has developed into a vast area of study with applications in many different fields. Naturally, the most affected field, which was the prime focus of the lecture, was healthcare, and various clinical diagnostic and pharmaceutical procedures are primarily centered on nanoparticles. This has given way to the conception of the “Nanobots,” which are mostly nanoscale-sized machines that can be remotely controlled and can access the previously inaccessible nanoscale recesses of the human body. This technology promises radical improvements in the healthcare department, but its realization is still beset with challenges. Experts worldwide are working tirelessly to achieve this goal and have already developed various micro and nano-sized robots of organic and inorganic origin. This chapter explores the concept of nanorobots, their types and properties, the fabrication technologies employed, the challenges faced, and the practical and potential applications of this technology in detail.
