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. 2021 Jun 22;12:3824. doi: 10.1038/s41467-021-23564-4

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© The Author(s) 2021

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Fig. 7 — SWNTs are wrapped with a polymer that forms a “corona” which modulates analyte binding. Upon recognition of a molecule, SWNT fluorescence changes in intensity or peak wavelength. Adapted with permission from ref. ²⁸.