four report on Nano technology
Nano technology involves manufacturing of material components, devices and systems at near atomic scale, or nanometer level. Designing and creating at this scale leads to products that can achieve exceptional performance. Battery materials storing large amounts of energy, structural materials increasing life of an engine ten times, super fast computer chips, nanorobots bringing the images of whole body including blood vessels etc and many more. The present paper deals with application of nano in field of medicine. In the field of medicine it is used for bio-compatibility, research and monitoring, intervention of surgery or drugs, replacement of organs and prevention of rejection, replacement of injured organs, heterostasis and much more. There are however limitations as it is a technology and not a magic. Also, cure to some diseases have been found. They are telomere loss, chemical accumulation DNA damage, cancer, brain damage, hormonal deficiencies, solving accident cases and many blood related diseases. Some ethical issues also govern the advancement of this technology. Many factors like genetic modification, over population, poor health , elitism and other risks are opposed by many people. Finally, this is a new technology and still many frontiers lie unconquered.