Dresden 2017 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 13: Bioimaging and Spectroscopy II

BP 13.1: Hauptvortrag

Dienstag, 21. März 2017, 09:30–10:00, HÜL 386

X-ray imaging of Cells and Tissues — •Tim Salditt — Georg-August-Universität Göttingen, Institut für Röntgenphysik, Friedrich-Hund-Platz 1, 37077 Göttingen

X-rays can provide information about the functional (interior) architecture of unstained biological cells and tissues. However, this potential of hard x-rays in view of penetration power, high spatial resolution, quantitative contrast, and compatibility with environmental conditions has to date not been fully developed, mainly due to significant challenges in x-ray optics. With the advent of highly brilliant radiation, coherent focusing, and lens-less diffractive imaging this situation has changed. We show how nano-focused coherent x-ray synchrotron beams can be used for scanning as well as for full field holographic x-ray imaging.

Following an introduction to the basic concepts of lensless x-ray imaging, different recent examples of biological imaging are presented, ranging from bacterial and eukaryotic cells, to the level of tissue and organs.