24 May '16, 8pm

Carbon Nanotubes Reveal Cancer Deep Inside Tissue

Carbon Nanotubes Reveal Cancer Deep Inside Tissue

Researchers at Rice University in Houston, Texas, have developed a medical imaging technique that combines carbon nanotubes, LED light, and a photodiode detector to pinpoint the location of tumors buried 20 millimeters deep in simulated tissue. The researchers believe that this is the deepest that carbon nanotubes have been detected inside of tissue. In research described in the journal Nanoscale , the Rice team exploited the ability of single-walled carbon nanotubes (SWNTs) to luminesce in the short-wave infrared (SWIR) region of the spectrum. While this SWNT luminescence has previously proven effective in illuminating internal organs , researchers were still unable to reliably detect and localize the source of the SWIR emission from inside tissues. The answer they came up with is a method called spectral triangulation. This technique involves exciting the SWNTs embedded ...

Full article: http://spectrum.ieee.org/nanoclast/biomedical/imaging/car...

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