nano medicine

2. HEALTH CARE:
The national cancer institute is using nanotechnology to improve the way that we treat cancer .researches are also working on nano particles that can image or “show” cancerous cells in order for surgeons to be able to see them more precisely and thus remove all of the cancer
Nano shells are being developed that can deliver the cancer killing drugs directly to the cancerous site with out killing healthy cells.
In the below figure nano scale cantilevers is




Shown .the e shaped particle is beant contilever and the ‘y’shaped are anti bodies and the cancer cell is releasing proteins
Nanodevices:
Nanopores
Dendrimers
Nanotubes
Quantum dots
Nanoshells
These all devices are in a size of 10 to 102.
The cancer cell will be in a size of 104 to 105
Tiny bio-and chemical-sensors; nano particles that track and destroy cancer cells; artificial body parts and implimentable drug deliverysystems

Nano-Medicine
Nanocomputers are small enough that several hundred of them could fit inside the space of a biological cell. Medical nanites could patrol your body, and armed with knowledge of your DNA, repel any foriegn invaders by forming an artificial immune system. The common cold would no longer exist, nor would threats of any biological or viral infection. Biological warfare would then cease to be a threat, also.
These nanites, composed of smart materials, could take over from the plastic surgeons and people would be able to remake their bodies, even change their sex if that was what they wanted to do. There would be no pain, no bruises, and the results would be overnight. Additionally, imagine your body and bones woven with invisible diamond fabric. This body "reinforcement" could increase your tolerance to "G" forces, enable you to fall from a 10 story building and walk away, replace the oxygen in your blood in case of fire or chemical spill, and allow you to walk away from normally fatal accidents.
Life consists of molecular machines controlled by a program (DNA). Aging is a disease and is the real number one killer of humans. With the new genetic therapies it is hoped that the aging process can be reversed within the next 12 to 20 years. With medical nanites, we can not only extend our lives but stop completely the aging process.