Dresden 2006 – scientific programme

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AKB: Biologische Physik

AKB 30: Poster Session I

AKB 30.5: Poster

Monday, March 27, 2006, 15:30–18:00, P1

Towards Nanotomography of Bovine Bones — •Stephanie Röper, Nicolaus Rehse, Heidemarie Teichmann, and Robert Magerle — Chemische Physik, TU Chemnitz, D-09107 Chemnitz

Natural materials such as bone and teeth are nanocomposites of proteins and minerals, which exhibit many levels of complex structure from macroscopic to microscopic length scale. Nanotomography is a novel approach to image such complex structures. We focus on bovine bone, which is first embedded in a methacrylate resin and then microtomed. For Nanotomography the specimen is ablated layer-by-layer by wet chemical etching and imaged with scanning force microscopy after each etching step. From the resulting series of images the three-dimensional structure is reconstructed. Finding a proper etching method for both components, the mineral platelets and the collagen matrix is the first requirement for successful Nanotomography imaging. On our poster we will present our results on etching experiments with oxidizing solutions.