Nano Sensors and Nano Devices Contribution in Biomedical Application

The Biomedical devices perform the important role for diagnosing the diseases sensitively and giving appropriate treatment to the patients by the Medical Professionals. Now days some diseases are not able to find in initial stage or in next stages with existing devices, so that we are in the need to design and develop the devices and sensors in nano size. For example to find the different type of cancer in initial stage is very difficult, to overcome this problem we are forced to develop the nano device or sensors. In medical field currently using many nano devices like nano pacemaker, nano syringe and nano endoscope. Micro and nano sized sensors can make use of a wide range of technologies that most effectively detect a targeted chemical or physical characteristic. Using polyethylene glycol beads coated with fluorescent molecules to monitor diabetes blood sugar levels. The beads are injected under the skin and stay in the interstitial fluid. At the time the glucose in the interstitial fluid drops to reach the dangerous levels, glucose displaces the fluorescent molecules and creates a glow. This glow is seen on a tattoo placed on the arm. Implantable nano sensors can also work with a series of medical devices that administer treatment automatically if required. A nano medical device must do a few functions well, so it must contain particular molecules that do these functions well, cell targeting, cell entry, intracellular targeting, controlled drug delivery. Nano devices must catch up with the technology level of the human body to become an indeed effective. The result will be the ability to analyze and repair the human body as we can repair a conventional machine today. In the nano concept holds together, it could be the ground work for a new industrial revolution.