Fluorescence Excitation Spectroscopy of Glucose Molecules
DOI:
https://doi.org/10.47363/JPSOS/2023(5)177Keywords:
Glucose, Photoluminescence, X-ray diffraction, Structure, WavelengthAbstract
The measurement technique and the results obtained by optical spectroscopy during excitation of glucose molecules by photons are described. For the first
time, the photoluminescence spectra of glucose were studied in the wavelength range 400-700 nm upon excitation by photons of different energies 3.26-4.51 eV. Peculiarities were found in the luminescence spectra (radiation intensity, positions of maxima), indicating the excitation of the OH hydroxyl radical and the COH carbonyl group as fragments of the glucose molecule by photon impact. X-ray diffraction spectra were measured, which confirmed the presence of glucose hydrate in the studied samples and certain structural changes after interaction with photons. It has been shown that photon irradiation results in modification of glucose molecular crystals both at the macro and micro levels.