NANO TECHNOLOGY IN CANCER DIAGNOSIS AND TREATMENT

Seminar On Nanotechnology and Cancer Treatment-Report and PPT

Cancer is caused by damage of genes which control the growth and division of cells. Detection/diagnose/treatment is possible by confirming the growth of the cells and treated by rectifying the damaging mechanism of the genes or by stopping the blood supply to the cells or by destroying it. Conventional detection of the cancer is done by observing the physical growth/changes in the organ by X-rays and/or CT Scans and is confirmed by biopsy through cell culture. However, the limitation of these methods is that these are not very sensitive and the detection is possible only after substantial growth of the cancerous cells. Nano Particles (NP) being of a few of nano meters size and the cells being of the size of few microns, NP can enter inside the cells and can access the DNA molecules/Genes and therefore, there is a

possibility that the defect in the genes can be detected. The conventional treatment options of cancer are surgery, radiation therapy and chemo therapy. However, all the these methods have their own limitations (in surgery one loses the organ and the cancer may appear again, in radiation therapy even the healthy cells get burnt, cancerous cells burning is not uniform and the burnt part may become dead and non functional, in chemotherapy treatment is harmful to healthy cells, approach is gross and rarely successful if the cancer is in advanced stage).In the nanotechnology methods, certain NP can be designed to absorb preferentially certain wave length of radiation and if they enters in the cancerous cells, they will burn them. Nanotechnology can be used to create therapeutic agents that target specific cells and deliver toxin to kill them.The NP will circulate through the body, detect cancer associated molecular changes, assist with imaging, release a therapeutic agent and then monitor the effectiveness of the intervention.In this paper, the details of these possible detection/ diagnose/ treatment methods of nanotechnology are presented. In addition the toxic effects of NP and their regulatory aspects are also discussed.

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