introduction raman spectroscopy is a vibrational spectroscopic technique, based on inelastic scattering of monochromatic light. this technique can provide valuable information about biomolecular changes, associated with neoplastic transformation. the purpose of this study was to find raman spectral markers for distinguishing normal samples from cancerous ones in different tissues. materials and...

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...

Fourier-Transform infrared and Fourier-Transform Raman spectra of 2-methoxy-4nitroaniline(2M4NA) was recorded in the region 4000 – 400 cm and 3500 – 100 cm .Quantum chemical calculations of energies, geometrical structure and vibrational wavenumbers of 2M4NA were carried out by ab initio HF/6-311G(d,p) and DFT (B3LYP/6-311G(d,p) and B3PW91/6-311G(d,p)) levels of theory with complete relaxation ...

The vibrational fundamental modes of 7-methoxy4-bromomethylcoumarin (7BMC) have been analyzed by combining FTIR, FT-Raman and quantum chemical calculations. The structural parameters of the compound are determined from the optimized geometry by B3LYP method with 6-311++G (d, p) basis set. The harmonic vibrational frequencies were calculated and the scaled values have been compared with experime...

Accurate computations of vibrational energies and vibrational spectra of molecules require inclusion of the anharmonic forces. In standard computational protocols, this leads to a large vibrational Hamiltonian matrix that needs to be diagonalized. Spectral intensities are calculated for individual transitions separately. In this work, an alternate direct generation of the spectral curves is pro...

• Graphene Oxide, enhanced Hummer technique, EDAX, FT-IR, Thin film, XPS, Raman. oxide (GO) sheets possess a 2D filiform structure and were indigenously synthesized via the methodology. It is accepted that redox approach may be distinctive technique to fabricate GO films as sheet on an expanded scale. Instrumental characterizations showed ready during this study had bi-directional lamellar laye...

Frankfurters are widely consumed all over the world, and the production requires a wide range of meat and non-meat ingredients. Due to these characteristics, frankfurters are products that can be easily adulterated with lower value meats, and the presence of undeclared species. Adulterations are often still difficult to detect, due the fact that the adulterant components are usually very simila...

PURPOSE Recent studies have demonstrated increased nonenzymatic glycation in vitreous from patients with diabetic retinopathy. The present study reports the use of Raman spectroscopy as a novel approach for investigating these molecular changes in human vitreous and experimental tissues. METHODS Near-infrared laser-excited Fourier-transform (FT) Raman spectroscopy (RS) was performed on vitreo...