Extended Data Fig. 2: Supplementary data for ratiometric analysis. | Nature Methods

Extended Data Fig. 2: Supplementary data for ratiometric analysis.

From: Vibrational fiber photometry: label-free and reporter-free minimally invasive Raman spectroscopy deep in the mouse brain

Extended Data Fig. 2

a, Example of the raw Raman spectra used for ratiometric analysis acquired in metastatic tissue (magenta) and in a contralateral position in healthy tissue (cyan). b Derivative of Raman spectra for cancer free (cyan) and cancer invade (magenta) regions in the high-wavenumber (HW) range. For display reasons, the plot shows 1 measurement out of 5 for every implant position.

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