26. Deutsche Physikerinnentagung 2022 (German Conference of Women in Physics)

Session

Physics Talks - Biophysics, Medical Physics

29

Nov 26, 2022, 11:00 AM

Otto-Lehmann Hörsaal (KIT Campus South)

91. Dose-efficient X-ray phase contrast imaging by Bragg magnifier optics

Rebecca Spiecker (Karlsruhe Institute of Technology, Laboratory for Applications of Synchrotron Radiation)

11/26/22, 11:00 AM

Physics talks

Talk

Synchrotron-based X-ray imaging of biological samples is often hindered by the radiation dose deployed in the sample, in particular for in vivo imaging and at μm-resolution. Many efforts have been made to reduce the dose, e.g., by propagation-based phase contrast imaging at high photon energies (~30 keV) [1, 2]. However, the detection efficiency of indirectly converting, scintillator-based...

93. BK-channel as a fast and precise Ca2+ sensor: application to PMCA pump strength measurements

Barbara Schmidt (Saarland University)

11/26/22, 11:15 AM

Physics talks

Talk

$Ca^{2+}$ diffusion within cells and penetration of $Ca^{2+}$ through their membrane engages a wide field of theoretical and experimental research. Therefore, the monitoring of rapid changes of the $Ca^{2+}$ concentration beneath the cell membrane is of great interest. Here, we make use of BK-type $Ca^{2+}$-activated $K^+$ channels to determine the $Ca^{2+}$ activity of PMCA, which transport...

109. How diamond sensors can help to understand the magnetic sense of animals

Dr Franziska Curdt (Universität Oldenburg)

11/26/22, 11:30 AM

Physics talks

Talk

The ability of many animal species to orient themselves during long distance journeys around the globe is a fascinating topic. Althoughit has been known for decades that many of these species can sense the geomagnetic field and to use it as a navigation aid, the underlying sensory mechanisms are still poorly understood. One hypothesis is that magnetic particles might be part of such a sensor....

90. Multi-method characterization of bone to find correlations between biological and material properties

Ms Victoria Schemenz (Department for Operative, Preventive and Pediatric Dentistry CC3 - Centrum für Zahn-, Mund- und Kieferheilkunde Charité - Universitätsmedizin Berlin)

11/26/22, 11:45 AM

Physics talks

Talk

The complex hierarchical structure of bone undergoes a lifelong remodeling process, where it adapts to mechanical needs. Hereby, bone resorption by osteoclasts and bone formation by osteoblasts have to be balanced to sustain a healthy and stable organ. Osteocytes orchestrate this interplay by sensing mechanical strains and translating them into biochemical signals.
The osteocytes are located...