The use of mass spectrometry imaging for crystallinity detection offers improved matrix selectivity and sensitivity over the techniques, such as X-ray microscopy Raman spectrometry, that are traditionally used with this work. Crystallinity is observed in electrospray laser desorption ionization (ELDI-MSI) a high-intensity agglomeration analyte spatially resolved image. As an indirect method det...

Metabolomics is an emerging field of cell biology that aims at the comprehensive identification of metabolite levels in biological fluids or cells in a specific functional state. Currently, the major tools for determining metabolite concentrations are mass spectrometry coupled with chromatographic techniques and nuclear magnetic resonance, which are expensive, time consuming and destructive for...

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...

In this paper, by including Raman scattering in the coupled-mode equations, the scalar modulation instability in photonic crystal fibers is investigated. The evolution of the pump, Stokes and anti-Stokes waves along the fiber as well as the conversion efficiency for two cases, with and without Raman effect, are studied. The effect of anti-Stokes seed and the pump depletion on the evolution of S...

Color paintings have much aesthetic value and historical importance. This study examined the color of east pillar Taiping Heavenly Kingdom’s Great Hall. The pillars in interiors ancient buildings were painted with a layer red lacquer. are valuable because they symbolize highest rank building’s hierarchy esteemed status owner. In this study, we investigated pigments, inorganic fillers, adhesives...

Achieving adequate disinfection and preventing reinfection is the major goal in endodontic treatment. Variation canal morphology open porosity of dentine prevents achieving complete disinfection. Questionable biocompatibility materials as well a lack sealing ability questions usefulness current obturation methods. With novel approach based on use boron-doped diamond (BDD) electrodes having show...