Diagnosis of periodontal disease by Fourier transform infrared (FT-IR) microscopic technique was achieved for saliva samples. Twenty-two saliva samples, collected from 10 patients with periodontal disease and 12 normal volunteers, were pre-processed and analyzed by FT-IR microscopy. We found that the periodontal samples showed a larger raw IR spectrum than the control samples. In addition, the ...

The purpose of this study is to develop a method of evaluating the enzymatic activity of trypsin in a solid-state based on Fourier transform infrared (FT-IR) spectra using chemoinformatics and two-dimensional (2-D) correlation spectroscopy. Crystalline trypsin powders are compressed at 0-4000 kg cm-2 by a compression/tension tester. The enzymatic activity of trypsin is assayed by the kinetic de...

Light front field theories are known to have the usual infra-red divergences of the equal time theories, as well as new ‘spurious’ infra-red divergences. The former kind of IR divergences are usually treated by giving a small mass to the gauge particle. An alternative method to deal with these divergences is to calculate the transition matrix elements in a coherent state basis. In this paper we...

Hydrothermal synthesis of nickel-chitosan hybrid  has  been accomplished using Ni(CH3COO)2,4H2O, chitosan and water as starting material, template and solvent respectively, followed by calcination at 800 and 900˚C to provide nanoporous NiO800  and NiO900. The solid products were characterized by X-ray diffraction (XRD), nitrogen adsorption-desorption, scanning electron microscopy (SEM) and Four...

Fourier-transform infrared (FT-IR) microspectroscopic mapping can be used to distinguish between different tissue structures, and to increase the image contrast between normal and cancerous regions of a given tissue sample. This study demonstrates the biochemical changes associated with a consistent link between cancerous tissue and various molecular changes in the IR spectra of human pancreati...

in this paper cufe2o4, nanocrystalline powders were prepared. also, the supported cu ferrite was obtained by impregnation of the supports with cu and fe nitrates solutions, for calcination temperature 450 ºc. the samples were characterized by x-ray powder diffraction (xrd) and fourier transform-infrared spectroscopy (ft-ir). photocatalytic degradation of acid red 206 in water was studied. cufe2...

Plants have a large capacity to transfer water from soil to the atmosphere. Soluble contaminants may be carried with that water, with a relative extent of transfer that depends on their octanol-water or organic matter-water partition coefficient. We measured the transfer rate for several solvents that vary in volatility and solubility, including trichloro ethylene, trichloroethane, chloroform, ...

Submit Manuscript | http://medcraveonline.com Abbreviations: ALT: Alanine Aminotransferase; LG: The Complex of Lecithin and Genistein by Synthesis; PMLG: The Physical Mixture of Lecithin and Genistein; UV: Ultraviolet; IR: Infrared Radiation; FT-IR: Fourier Transform Infrared; NMR: Nuclear Magnetic Resonance; SEM: Scanning Electron Microscopy; DSC: Differential Scanning Calorimetry; XRD: X-Ray ...