By measuring changes in the photoluminescence of single-walled carbon nanotubes caused by the presence of molecules that damage DNA, it could be possible to build a biosensor that can identify multiple analytes in real time.
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Krauss, T. Nanotubes light up cells. Nature Nanotech 4, 85–86 (2009). https://doi.org/10.1038/nnano.2008.425
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DOI: https://doi.org/10.1038/nnano.2008.425
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