The ultrastructure of the wood cell wall.
Abstract
Wood is an important material from both the viewpoints of biology as well as material science. Indeed, wood cells provide the channels for water and mineral transports in the tree and, at the same time, have to assure its mechanical stability. This is possible because the cell wall consists mostly of a biological fibre composite with remarkable mechanical properties. The diameter of the main structural unit of this material, the elementary cellulose fibril (ECF), is known to be in the nanometer range. Hence, the aim of the present project is to investigage the structure of the wood cell wall in the mesoscopic range between 1 and 100 nm in order to understand the mechanical properties of the wood cell wall and to relate these to its biological function.
wood cells fibre composite small-angle X-ray scattering micro pull experiment
Publikationen
Spiral angle of elementary cellulose fibrils in cell walls of Picea abies determined by small-angle X-ray scattering.
Autoren: Reiterer, A., Jakob, H. F., Stanzl-Tschegg, S. E., Fratzl, P. Jahr: 1998
Journal articles
Determination of spiral angles of elementary fibrils in the wood cell wall: Comparison of small-angle X-ray scattering and wide-angle X-ray diffraction.
Autoren: Lichtenegger, H., Reiterer, A., Tschegg, S. E., Fratzl, P. Jahr: 1998
Chapter in collected volumes
Experimental evidence for a mechanical function of the cellulose microfibril angle in wood cell walls.
Autoren: Reiterer, A., Lichtenegger, H., Tschegg, S., Fratzl, P. Jahr: 1999
Journal articles
Nanostruktur und mechanische Eigenschaften von Fichtenholz.
Autoren: Reiterer, A. Jahr: 1999
Doctoral Thesis
Variation of cellulose microfibril angles in softwoods and hardwoods-a possible strategy of mechanical optimization.
Autoren: Lichtenegger, H; Reiterer, A; Stanzl-Tschegg, SE; Fratzl, P Jahr: 1999
Journal articles
Microfibril Angle in the Wood Cell Wall: Mechanical Optimization through Structural Variation?
Autoren: Lichtenegger, H., Reiterer, A., Tschegg, S.E., Fratzl, P. Jahr: 2000
Conference & Workshop proceedings, paper, abstract
Cellulose orientation in the wood cell wall.
Autoren: Lichtenegger, H., Reiterer, A., Stanzl-Tschegg, S.E., Paris, O., Müller, M., Fratzl, P. Jahr: 2000
Conference & Workshop proceedings, paper, abstract
Project staff
Stefanie Tschegg
Univ.-Prof. i.R. Dr.phil. Stefanie Tschegg
stefanie.tschegg@boku.ac.at
Project Staff
01.08.1995 - 31.08.1998
BOKU partners
External partners
University of Leoben, Erich-Schmid-Institute
Prof. Dr. Peter Fratzl
coordinator