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Normalized FEDS spectra of C. albicans and H. pylori biofilms between 3100 and 2450 cm−1 overlapping with their respective normalized IR spectra, A and B, respectively. Comparison of FEDS spectra is shown in C. Signals c, h, k and d denote Candida, Helicobacter, ‘no-shift signal’ and ‘characteristic signal’, respectively.
