Mar. 29, 2012

Analyzing Biomaterials by Nanofocus Computed Tomography

3D biomaterials are known to function as alternative bone grafts. In the area of Tissue Engineering (TE) 3D matrices are often used in combination with mesenchymal stem cells to build up a functional tissue graft. In this approach the selection of a matrix is a crucial factor. For bone TE applications the matrix should fulfill the following geometrical properties. moreFeb. 13, 2012

Full-Field MicroXRF Imaging

To obtain volumetric information on the chemical composition inside objects, a full-field micro X-ray fluorescence (microXRF) imaging technique has been implemented. Opposed to the traditional point-by-point methods using confocal imaging, this new method collects complete 2D XRF projections of 3D objects without any scanning. And in contrast with EDX surface mapping in an SEM, having complete information from the entire volume allows creating 3D XRF images non-destructively by tomographic reconstruction. moreApr. 29, 2010

SEM/EDX-Analysis in Art History

Material analysis in art historical research provides information on dating, tracing the process of origin and state of preservation of art objects. Usually XRF and optical spectroscopy are used to study pigments in paintings. However these methods suffer from poor spatial resolution and therefore can not be used for the analysis of the layer structure of paintings. In these cases high resolution methods like SEM/EDX are indispensable. more