6558 Search results for: „“
Liver dysfunction and phosphatidylinositol-3-kinase signalling in early sepsis: experimental studies in rodent models of peritonitis
Background: Hepatic dysfunction and jaundice are traditionally viewed as late features of sepsis and portend poor outcomes. We hypothesized that changes in liver function occur early in the onset of sepsis,...
PublicationsImaging and dispersion analysis of a diffractive optical element for infrared sensors
Diffractive optical elements like diffractive lenses are used in infrared sensors to combine spectral filtering and focusing in a single optical element. Spectral resolution, dispersion, and imaging properties...
PublicationsRaman spectroscopic imaging as complementary tool for histopathologic assessment of brain tumors
Raman spectroscopy enables label-free assessment of brain tissues and tumors based on their biochemical composition. Combination of the Raman spectra with the lateral information allows grading of tumors,...
PublicationsRaman spectra of single cells with autofluorescence suppression by modulated wavelength excitation
Raman spectroscopy is a non-invasive technique offering great potential in the biomedical field for label-free discrimination between normal and tumor cells based on their biochemical composition. First,...
PublicationsUnsupervised unmixing of Raman microspectroscopic images for morphochemical analysis of non-dried brain tumor specimens
Raman microspectroscopic imaging provides molecular contrast in a label-free manner with subcellular spatial resolution. These properties might complement clinical tools to diagnose tissue and cells in...
PublicationsToward a spectroscopic hemogram: Raman spectroscopic differentiation of the two most abundant leukocytes from peripheral blood
The first response to infection in the blood is mediated by leukocytes. As a result crucial information can be gained from a hemogram. Conventional methods such as blood smears and automated sorting procedures...
PublicationsIdentification of minerals and organic materials in Middle Eocene ironstones from the Bahariya Depression in the Western Desert of Egypt by means of micro-Raman spectroscopy
The Middle Eocene ironstones of the Bahariya Depression consist of four iron ore types: manganiferous mud-ironstone, fossiliferous ironstone, stromatolitic ironstone and nummulitic–ooidal–oncoidal...
PublicationsPlasmonic dimer antennas for surface enhanced Raman scattering
Electron beam induced deposition (EBID) has recently been developed into a method to directly write optically active three-dimensional nanostructures. For that purpose a metal-organic precursor gas (here...
PublicationsSi and SiO detection in a HMDSO/propane/air flame using spatially resolved optical emission spectroscopy (OES)
Optical emission spectra of rich HMDSO/propane/air and propane/air flames (equivalence ratio Φ = 1.33) were recorded using an imaging spectrometer in combination with an intensified CCD camera. The probe...
PublicationsDependence of the Efficiency of Raman Scattering in Silicon Nanowire Arrays on the Excitation Wavelength
We studied features of Raman scattering in silicon nanowire (SiNW) layers of 50 – 350 nm in diameter formed by means of chemical etching of crystalline silicon (c-Si) wafers with preliminary deposited...
Publications