Ni ferrite crystalline material is synthesized using a sol-gel method at two different temperatures. The vibrational and stretching modes, crystalline phase, size distribution and morphology of the products are investigated via Raman back-scattering and Fourier transform infrared (FTIR) spectroscopy, XRD and FESEM, respectively. Vibrational modes of spinel ferrite are observed at Raman and FTIR...

Differential profile of membrane lipids and pigments of a Synechococcus sp. cyanobacterial strain cells exposed to blue, green, red and white light are determined by means of liquid chromatography and mass spectrometry or diode array detection. Raman and ATR-IR spectra of intact cells under the diverse light wavebands are also reported. Blue light cells exhibited an increased content of photosy...

We report on the photodissociation dynamics study of n-butyl nitrite and isoamyl nitrite by means of time-resolved Fourier transform infrared (TR-FTIR) emission spectroscopy. The obtained TR-FTIR emission spectra of the nascent NO fragments produced in the 355 nm laser photolysis of the two alkyl nitrite species showed an almost identical rotational temperature and vibrational distributions of ...

Based on IR absorbance spectra of healthy and malignant breast [1] and blood cells [2] found in literature we investigated the possibility of disease stage cell discrimination by comparing only a few absorbance peaks. This way no expensive FTIR spectroscope or time consuming expensive staining/labeling steps are required. Absorbance differences between healthy and malignant cells at wavelengths...

The complex formation of uranyl ions (UO(2+)2) with poly(methacrylic acid) (PMAA) was investigated by potentiometric, conductometric, UV-visible, luminescence and FTIR spectroscopic, and thermal analysis methods. The stoichiometric ratio at complexation between polymer and uranyl ions was found to be equal to 2 polymer base units per uranyl ion. FTIR spectra of the PMAA-UO(2+)2 complex confirme...

Vibrational changes in the catalytic site of horseradish peroxidase were investigated by FTIR (Fourier-transform infrared) spectroscopy in the 1000-2500 cm(-1) range. Difference spectra were generated by photolysis of the haemII-CO compound at different pH/pD values. The spectra report on the fine structure around the catalytic site and show vibrational changes of protein backbone, amino acid r...

In this work, SiO2 and fluorine and phosphorous doped SiO2 thin films are investigated using FTIR and Raman techniques. FTIR spectroscopy was performed at normal and oblique incidence of the probe beam in transmission and reflection modes. The effect of polarisation and angle of incidence of the probe beam is examined for the case of reflection mode. Infrared spectra taken from doped oxides sho...

Genetic evaluation of dairy animals requires rather large datasets, possibly larger than what is feasible to observe directly through chemical analyses for milk composition and quality traits because they are costly and time consuming. An alternative and more convenient method – use of infrared (IR) spectra – has been proposed (Goulden, 1964). Fourier transformed Infrared (FTIR) spectrometry is...

The Fourier transform Raman (FT-Raman) and infrared absorption (FTIR) spectra of form II poly(vinylidene fluoride) have been recorded and analysed. A complete spectral analysis, assignments to observed bands, normal coordinate analysis and discussion of the spectra are presented. The computed spectrum is in excellent agreement with experiment. The potential energy distribution (PED) is evaluate...

Principal component regression (PCR) was used to develop calibration and prediction models for determination of mineral content of complex mineral mixtures by utilizing attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectra. The typical constituents of oil shale such as dawsonite, nahcolite, quartz, dolomite, illite, albite, analcime, and kerogen were used to prepare samples...