Microwavephysics and Atmospheric Physics
Biomedizinische Photonik
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Ultrafast Science and Technology
Last update: 13.09.2017
FS 2012: Seminare über Biomedizinische Photonik
Wednesday 10-12
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Mittwoch, 07.03.2012

A new light in diagnostics of tissue with non-invasive near-infrared spectroscopy and imaging

Zeit: 10:15 Uhr
Hörsaal: A97
PD Dr. Martin Wolf, Ph. D.
Biomedical Optics Research Laboratory, Division of Neonatology, University Hospital Zurich

Near-infrared spectroscopy (NIRS) and imaging (NIRI) are quickly growing method to non-invasively study human tissue using near infrared light, which penetrates tissue several cm deep. The method is appreciated by patients and researchers, because it is quantitative, measures continuously, is painless, can be used at the bedside, is relatively inexpensive and can easily be combined with other modalities such as e.g. fMRI and EEG. Light absorption and scattering of tissue are measured at multiple wavelengths and the concentration of constituents of tissue such as oxyhemoglobin, deoxyhemoglobin, water, lipids and cytochrome oxydase are quantified. These physiological parameters are clinically important, because they represent e.g. blood volume, flow and oxygenation and enable to monitor the function of biological tissue. Multiple light source and detector combinations produce images of whole tissue areas. Results of simulations and new developments in sensor design and 3D imaging of deep tissue will be shown.

Mittwoch, 25.04.2012

Human allogeneic stems cells for academic and clinical studies. Combination of stem cells and lasers in ophthalmology.

Zeit: 14:15 Uhr
Hörsaal: B78
Alexei Lukashev, Ph.D.
Laser Stem Cell Division
Stemedica Cell Technologies, Inc.
San Diego, CA

Freitag, 06.07.2012

Light Sheet and Projection Tomography Techniques for in-vivo time-lapse imaging

Zeit: 10:15 Uhr
Hörsaal: A97
Jorge Ripoll Lorenzo, Professor at University of Fribourg, Physics Department

Light sheet techniques have gained considerable interest in microscopy, and have become one of the most useful approaches for high resolution imaging of large samples. In this talk I will present two approaches which use different illumination schemes, namely Selective Plan Illumination Microscopy and Optical Projection Tomography and showcase how each technique has its own advantages. The use of them combined will also be discussed, all based on the presence or absence of scattering.