1. Faculty of Wood Engineering/Department Applied Wood Biology Eberswalde University of Sustainable Development Schickler Str. 5 16225 Eberswalde Germany
2. Institute of Metallic Biomaterials Helmholtz-Zentrum Hereon Max-Planck-Str. 1 21502 Geesthacht Germany
3. Institute of Materials Physics Helmholtz-Zentrum Hereon Max-Planck-Str. 1 21502 Geesthacht Germany