In view of its potential for biological tissues analyses at a molecular level, Raman spectroscopy in optical range has been the object of biomedical research for the last years. The main aim of this work is the development of Raman spectroscopy for organic content identifying and determination of biomarkers of saliva at a molecular level for periodontitis diagnostics. Four spectral regions were determined: 1155 and 1525 cm −1 , 1033 and 1611 cm −1 , which can be used as biomarkers of this widespread disease.An informative volume deposition on the dried saliva drop (50× magnifications)
Abstract:The results of development of two versions of the intracavity laser refractometry in reflection (ILRR) are reviewed in this paper. The ILRR method is based on the use of the properties of two-mode lasers with broken cavity and allows the precise refractive investigations of turbid media to be fulfilled in real time. The ILRR applications are primarily planed to biological liquids study. The results of blood refractometry are offered.A fragment of the sitall monobloc three-mirror laser
In view of its potential for caries diagnostics,
fluorescence spectroscopy in optical range has been the object of
research for the last years. In the frames of this work the
comparative investigations in this direction were accomplished
with the help of fibre optics spectrometer and lasers at the
wavelengths of 473 nm, 532 nm, and 633 nm. Together with
spectroscopic investigations, the element analysis of enamel (of
sound teeth and teeth with caries lesions) was fulfilled with the
help of laser mass-spectrometer.
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