6814 Suchergebnisse für: „“

Automatization of spike correction in Raman spectra of biological samples

Raman spectroscopy as a technique has high potential for biological applications, e.g. cell and tissue analysis. In these applications, large data sets are normally recorded which require automated analysis....

Optical properties of silicon nanowires fabricated by environment-friendly chemistry

Silicon nanowires (SiNWs) were fabricated by metal-assisted chemical etching (MACE) where hydrofluoric acid (HF), which is typically used in this method, was changed into ammonium fluoride (NH4F). The...

Comparing Raman and fluorescence lifetime spectroscopy from human atherosclerotic lesions using a bimodal probe

Fluorescence lifetime imaging (FLIm) and Raman spec-troscopy are two promising methods to support morpho-logical intravascular imaging techniques with chemical contrast. Both approaches are complementary...

Multimodal nonlinear microscopy of head and neck carcinoma – toward surgery assisting frozen section analysis

Background. Treatment of early cancer stages is deeply connected to a good prognosis, a moderate reduction of the quality oflife, and comparably low treatment costs. Methods. Head and neck squamous cell...

Aluminum Doped Zinc Oxide Layers by Atomic Layer Deposition and Magnetron Sputtering: Formation and Comparison of Optoelectronic Properties

Thin films of aluminum-doped zinc oxide (AZO) were prepared using magnetron sputtering and atomic layer deposition (ALD) techniques. Atomic force microscopy (AFM) studies of AZO films surface morphology...

Fiber enhanced Raman spectroscopic analysis as a novel method for diagnosis and monitoring of diseases related to hyperbilirubinemia and hyperbiliverdinemia

Fiber enhanced resonance Raman spectroscopy (FERS) is introduced for chemically selective and ultrasensitive analysis of the biomolecules hematin, hemoglobin, biliverdin, and bilirubin. The abilities for...

Indications of new solitonic states within mid-IR supercontinuum generated in highly non-instantaneous fiber

Hepatic cirrhosis and recovery as reflected by Raman spectroscopy: information revealed by statistical analysis might lead to a prognostic biomarker

Hepatic cirrhosis is a severe chronic disease of the liver accompanied by massive changes in the physiology of the cells constituting the hepatic tissue. Success or failing of a therapeutic effort is difficult...

Single cell analysis in native tissue: Quantification of the retinoid content of hepatic stellate cells

Hepatic stellate cells (HSCs) are retinoid storing cells in the liver: The retinoid content of those cells changes depending on nutrition and stress level. There are also differences with regard to a HSC’s...

Multiplexed refractive index-based sensing using optical fiber microcavities

Optical fibers are promising tools for performing biological and biomedical sensing due to their small cross section and potential for multiplexing. In particular, fabricating ultra-small sensing devices...