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What is Nanomedecine? | Medical Use Of Nanomaterials

BY: Shalini Balan | Category: Nanotechnology | Submitted: 2011-11-20 07:15:31
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Article Summary: "Nanomedicine in simple terms is application of nanotechnology to health care .It will make use of molecular machine to attend to medical problems and molecular knowledge is used to maintain and improve human health at the molecular scale. It will lead to preservation and improvement of human health..."

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Nanomedicine in simple terms is application of nanotechnology to health care .It will make use of molecular machine to attend to medical problems and molecular knowledge is used to maintain and improve human health at the molecular scale. It will lead to preservation and improvement of human health.

The idea come from the concept that robots and electronic devices are so tiny that dozens would fit in the human body to treat disease and repair damaged organs. Nearly 40 nano health care products are in use now and Nano-sized drugs, drug delivery devices, imaging agents, are also in the process of development. Hence they will have extraordinary and far-reaching implications for the medical profession, for accurately diagnosing and defining the disease and its treatment also.
Its applications are wide and can be used in the medical applications of nanomaterials, nanoelectronic biosensors, and also in molecular nanotechnology

The main advantage of this is that in using drugs and surgery, doctors can only promote tissues to repair themselves but with use of molecular machines, there will be more direct repairs. This will not harm or cause any undesirable effect on the other parts of the body. Entrance to cells is possible because biologists can insert needles into cells without killing them. Thus, molecular machines are proficient of entering the cell. By nature molecular system perform cell-level repair. Molecular systems in can recognize each other by touch, though which they can, build or rebuild every molecule in a cell, and can disassemble damaged molecules. . Finally, cells that replicate prove that molecular systems can assemble every system found in a cell. Using the same principle nanomachine is built that are able to enter cells, sense differences from healthy ones to the abnormal ones and make modifications to the structure.

The healthcare possibilities of these cell repair machines are inspiring. They have compact parts would allow them to be more complex in nature. These machine will be specialized to move through tissue and enter cells and viruses ,open and close cell membranes and enter cells .As they do that machines will only be able to correct a single molecular disorder like DNA damage or enzyme deficiency. After getting his information cell repair machines will be programmed with more abilities with the help of advanced AI systems.

Nanocomputers will be needed to guide this machine which includes examining, taking apart, and rebuilding damaged molecular structures. Repair machines will regulate the repairing process by working structure by structure. Slowly they work cell by cell and tissue by tissue, leading to the repair of whole organs. This all together leads to promised and sound health .These can also build cells from scratch for those cells that are totally inactive.


Lately nanomedicines have been tested in mice and are also awaiting human trials. They use gold nanoshells to help diagnose and treat cancer, and using liposomes as vaccine adjuvant which in turn acts as vehicles for drug transport.

Drug detoxification has shown promising results in rats. nanoscale are smaller devices which are less invasive and can also be implanted inside the body, provided biochemical reaction times are much shorter too. These devices are faster and more sensitive than typical drug delivery.
Nanodevices could be observed at work inside the body using MRI, Medical nanodevices would first be injected into a human body, which then reaches to specific targeted area like tumor etc. Doctors can also monitor these and once they have reached to the right spot, doctors can go ahead with the procedure.

Nanoparticles of cadmium selenide glow when open to the elements of ultraviolet light. These are called quantum dots . These are of different sizes. Different sizes are selected so that the frequency of light used to make a group of quantum dots fluoresce is manifold of the frequency required to make another group incandesce. Then both groups can be lit with a single light source. When are injected, they leek into cancer tumors. The surgeon can see the glowing tumor, and use it as a guide for more accurate tumor removal.


• Drug delivery
• Protein and peptide delivery
• Nanoparticle targeting
• Neuro-electronic interfaces.

Nan scale Imaging has lead to the detection of certain of Protein Aggregates that leads Huntington's disease. Advances in nanotechnology are beginning to exert a significant impact in neurology which helps in dealing with Alzheimer's disease.

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Comments on this article: (1 comments so far)

Comment By Comment
swapna sekhar
2011-11-21 06:50:26 240
hi, this is a useful article so eloquently expressed. would like to see more of them from the author.

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