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Nanotechnology is a latest discipline of small scale technology that is used for the development and building of small scale devices. The work on nanotechnology started in the late 1960s. With the advent of time as more and more work is done in every field of life. Nanotechnology has opened many more options in the field of medicine such as in drug delivery, tissue engineering and Bioassays.

It has opened up new ways and made strong impact on the delivery of drugs, via different ways, in the body. Nanoneedles can help to deliver drugs even directly to the nucleus of the cell. Other ways of delivery of drugs are such that drugs are to be attached with the nanoparticles which take them to the desired destination in the body. One of the most important methods for the delivery of medicines is gold coated nanoshells. These gold coated nanoshells have the ability of dissolution on certain wavelengths of light. As Infrared light will pass through some centimeters of the body tissues causing these nanoshells to melt and in the result, release of certain medications within.

Nanoceramics are now in use as the bone replacement agents. They have given better results in proliferation (rapid increase) of osteoblasts (These are bone forming cells).

Chips containing ability for small scale assay of biological materials is also an option developed by the nanotechnology. Here in these chips, which are not much bigger than our credit or debit cards, we will be able to find a large number of results which take a long time and many different types of clinical tests.

At last every body will be able to detect the microbe or infection in his body and what will be its most efficacious treatment, by pressing just one button, with the power of nanotechnology.