Nano robots are the robots which human eye cannot see are. As the name refers their size is in nanometers (10−9 meters). Here the question is how this tiny technology is built and where it is used? This tiny technology is built by carbon nanotubes on nanoscale. It is the most advanced form of robots. Its main use is in medical field and it basically designed for medicine. 

In medical field Nano robots are mainly used for early diagnoses and targeted drug-delivery for cancer, biomedical instrumentation, monitoring of diabetes and health care. Nanotechnology provides a wide range of new technologies for developing customised means to optimize the delivery of pharmaceutical drugs. Today, harmful side effects of treatments such as chemotherapy are commonly a result of drug delivery methods that don’t pinpoint their intended target cells accurately. 

Researchers at Harvard and MIT, however, have been able to attach special RNA strands, measuring nearly 10 nm in diameter, to nanoparticles, filling them with a chemotherapy drug. These RNA strands are attracted to cancer cells. When the nanoparticle encounters a cancer cell, it adheres to it, and releases the drug into the cancer cell. This directed method of drug delivery has great potential for treating cancer patients while avoiding negative effects. The first demonstration of Nano motors operating in living organism was carried out in 2014 at University of California, San Diego. MRI-guided Nano capsules are one potential precursor to Nano robot also Nano robots is assisting in the repair of tissue cells alongside white blood cells. Recruiting inflammatory cells or white blood cells (which include neutrophil granulocytes, lymphocytes, monocytes, and mast cells) to the affected area is the first response of tissues to injury. Because of their small size, Nano robots could attach themselves to the surface of recruited white cells, to squeeze their way out through the walls of blood vessels and arrive at the injury site, where they can assist in the tissue repair process. 

Certain substances could possibly be used to accelerate the recovery. In such plans, future medical nanotechnology is expected to employ Nano robots injected into the patient to perform work at a cellular level. Such Nano robots intended for use in medicine should be non-replicating, as replication would needlessly increase device complexity, reduce reliability, and interfere with the medical mission. 


Lahore, December 18.