Nano technology has many great applications and here's an example of a splendid use of nanotechnology in the healthcare sector to provide a technique that is significantly better than everything else that exists today.
It's a nanowire which can detect the presence of cancer in the body on a molecular level. Researchers from Hardvard University say the device can indicate the presence of cancer markers even when they only constitute one hundred-billionth of the protein present in a drop of blood. In addition it's also able to pinpoint which type of cancer the patient has with an amazing speed.
"A nanowire array can test a mere pinprick of blood in just minutes, providing a nearly instantaneous scan for many different cancer markers. It's a device that could open up substantial new possibilities in the diagnosis of cancer and other complex diseases."