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Fluorescence dye as novel label molecule for quantitative SERS investigations of an antibiotic
Within this contribution, the proof-of-principle for a new concept for indirect surface-enhanced Raman spectroscopy (SERS) detection is presented. The fluorescence dye FR-530 is applied as a label molecule...
PublikationenFluorescence quenching in Zn2+-bis-terpyridine coordination polymers: a single molecule study
A Zn2+-bis-terpyridine coordination polymer is investigated by single molecule fluorescence spectroscopy (SMS). The bis-terpyridine ligands of the coordination chromophore bear conjugated chromophores...
PublikationenAn EUV beamsplitter based on conical grazing incidence diffraction
We present an innovative grating design based on conical diffraction which acts as an almost perfect and low-loss beamsplitter for extreme ultraviolet radiation. The scheme is based on a binary profile...
PublikationenRuthenium dye functionalized gold nanoparticles and their spectral responses
The functionalization of metal nanoparticles provides access to materials with unique chemical and physical properties for a wide range of applications, e.g. in catalysis,optoelectronics and material science....
PublikationenRefractive Index Measurement Based on Core-Cladding Mode Interferometry in Endlessly Single Mode Fiber
We propose a simple almost “all-fiber” sensor based on intermodal interference of core and cladding mode in an endlessly single mode photonic crystal fiber. Sensitivity to an external refractive index...
PublikationenLiver 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,...
PublikationenImaging 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...
PublikationenRaman 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,...
PublikationenRaman 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,...
PublikationenUnsupervised 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...
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