We talked a lot about nanotechnology, cloning etc, But today I like to talk about a new idea, is it possible to convert a disease causing virus, amoeba or a bacteria into a nano doctor? and My answer is yes it is very much possible to alter the gene of a virus and converting into an army of life saving microdoctors. The navigation of microdoctors are easy because it can consciously get into human cells, there microdoctors can even get into cytoplasm of cells and eat away or neutralize the disease casing chemicals and proteins created inside our DNA. Also these microdoctors can alter the negative disease causing  factors inside human genome.

The Virus which cause deadly diseases like AIDS can one day cure the same diseases, humans will posses technology to alter the characters of these viruses and can direct them into the virus infected body to fight against the bad viruses that cause deceases.

I can see a huge potential in this area, the same single celled deadly creature who terrorised human race for the past centuries  can one day be tamed into life saving friendly microdoctors.

Human body is having a network of blood streams that connects every part of our body ( capillaries and arteries ) this is a potential pathway for nanobots that can swim through human body to other for completing their assigned mission.

Wifi Guided nanobots

Wireless technology can be used for guiding nanobots through human body and to monitor their works. one thing scientists have to make sure before making such a system is to take care of the radiation aspects of wireless technology, it have to be safe for our human body.

Magnetic Fields for mobilizing nanobots

Magnetic fields can be used to to navigate nanobots from one part of body to another, the risk fator is less compared to wireless radiations.