APPLICATIONS OF NANOTECHNOLOGY IN MEDICINE

APPLICATIONS OF NANOTECHNOLOGY IN MEDICINE

ABSTRACT:

Disease and ill health are caused largely by damage at the molecular and cellular level. Today's surgical tools are, at this scale, large and crude. From the viewpoint of a cell, even a fine scalpel is a blunt instrument more suited to tear and injure than heal and cure. Modern surgery works only because cells have a remarkable ability to regroup, bury their dead and heal over the injury.
Nanotechnology, "the manufacturing technology of the 21st century," should let us economically build a broad range of complex molecular machines and particles. It will let us build fleets of computer controlled molecular tools much smaller than a human cell and built with the accuracy and precision of drug molecules. Such tools will let medicine, for the first time; intervene in a sophisticated and controlled way at the cellular and molecular level. They could remove obstructions in the circulatory system, kill cancer cells and to improve clinical diagnostic tests for early detection of cancer, or take over the function of subcellular organelles.

The use of nanoparticles called quantum dots to dramatically improve clinical diagnostic tests for the early detection of cancer. The tiny particles glow and act as markers on cells and genes, giving scientists the ability to rapidly analyze biopsy tissue from cancer patients so that doctors can provide the most effective therapy available.


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