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Spectral changes of the fluorophore in position 10 upon adsorption to silica nanoparticles at pH 6.3 (
), pH 7.3 (— — —), pH 8.3 (— – —), pH 9.3 (- - -), and an average spectra of labeled H10C in the free state at pH 6.3–9.3 (
). Spectra were registered after 5 min incubation with silica nanoparticles and where identical to spectra registered at 1 and 2.5 min, i.e., no additional process besides the adsorption took place during this time-span.
