In this work we employ the Fourier Transform Raman Spectroscopy to study normal and tumoral human breast tissues, including several subtypes of cancers. We analyzed 194 Raman spectra from breast tissues that were separated into 9 groups according to their corresponding histopathological diagnosis. The assignment of the relevant Raman bands enabled us to connect the several kinds of breast tissu...

AB S T R A C T : The Fourier transform Raman spectra of the kaolinite minerals have been measured in the 50-3800 cm -1 region using near infrared spectroscopy. Kaolinites are characterized by remarkably intense bands in the 120-145 cm -I region. These bands, attributed to the O-Si--O and O-A1-O symmetric bending modes, are both polymorph and orientation dependent. The 200-1200 cm -I spectral ra...

Surface enhanced Raman scattering (SERS) effect is currently exploited as the basis of a new type of optical labels for in vivo investigation of the tissues, especially for early medical diagnostic. Silver colloidal nanoparticles decorated with chemisorbed cresyl violet molecular species could act as hybrid SERS labels. Their Raman scattering properties have been characterized here using differ...

Objective This study evaluated the effect of different filling pastes and cleaning agents on the root dentin of primary teeth using Fourier-transformed Raman spectroscopy (FT-Raman), micro energy-dispersive X-ray fluorescence (µ-EDXRF) and scanning electron microscopic (SEM) analysis. Material and Methods Eighty roots of primary teeth were endodontically prepared and distributed into 4 groups...

Raman and Fourier Transform Infrared (FT-IR) spectroscopy was used for assessment of structural differences of celluloses of various origins. Investigated celluloses were: bacterial celluloses cultured in presence of pectin and/or xyloglucan, as well as commercial celluloses and cellulose extracted from apple parenchyma. FT-IR spectra were used to estimate of the I(β) content, whereas Raman spe...

We are developing a new type of miniature Fourier transform (FT) Raman spectrometer; the spatial heterodyne Raman spectrometer (SHRS), which provides high spectral resolution in a very small system with high light throughput. The resolution of the SHRS is not dependent on a slit, so miniature systems, <1 cm footprint, can be made with high spectral resolution. The ability to miniaturize the SHR...

FT-IR and Raman spectroscopic methods are suggested for identification of orthorhombic (form II) and monoclinic (form I) paracetamol and for their quantitative determination in mixes. The intensity ratio of the 836 cm(-1) FT-IR band (attributed to the presence of both forms) to the 806 cm(-1) monoclinic band plotted against the inverse monoclinic molar fraction (X) yields a straight line: I(836...