Page "Experimental cancer treatment" Paragraph 24
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Some of the most common involve the use of focused ultrasound ( FUS or HIFU ), microwave heating, induction heating, magnetic hyperthermia, and direct application of heat through the use of heated saline pumped through catheters.
Lasers are then used that pass harmlessly through the body, but heat the nanotubes, causing the death of the cancer cells.
Similar results have also been achieved with other types of nanoparticles, including gold-coated nanoshells and nanorods that exhibit certain degrees of ' tunability ' of the absorption properties of the nanoparticles to the wavelength of light for irradiation.
The success of this approach to cancer treatment rests on the existence of an ' optical window ' in which biological tissue ( i. e., healthy cells ) are completely transparent at the wavelength of the laser light, while nanoparticles are highly absorbing at the same wavelength.
In this way, the laser light can pass through the system without harming healthy tissue, and only diseased cells, where the nanoparticles reside, get hot and are killed.
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