Wood Deformation Leads to Rearrangement of Molecules at the Nanoscale
| Autor: | Batirtze Prats-Mateu, Adya Singh, Ronald Zirbs, Martin Felhofer, Peter Bock, Notburga Gierlinger |
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| Rok vydání: | 2020 |
| Předmět: |
Letter
Nanostructure Materials science lignin Bioengineering Nanotechnology 02 engineering and technology chemistry.chemical_compound Lignin atomic force microscopy (AFM) General Materials Science Hemicellulose Nanoscopic scale chemistry.chemical_classification Mechanical Engineering technology industry and agriculture General Chemistry Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Wood Cellulose microfibril Nanopore chemistry Raman spectroscopy cell wall 0210 nano-technology |
| Zdroj: | Nano Letters |
| ISSN: | 1530-6992 1530-6984 |
| Popis: | Wood, as the most abundant carbon dioxide storing bioresource, is currently driven beyond its traditional use through creative innovations and nanotechnology. For many properties the micro- and nanostructure plays a crucial role and one key challenge is control and detection of chemical and physical processes in the confined microstructure and nanopores of the wooden cell wall. In this study, correlative Raman and atomic force microscopy show high potential for tracking in situ molecular rearrangement of wood polymers during compression. More water molecules (interpreted as wider cellulose microfibril distances) and disentangling of hemicellulose chains are detected in the opened cell wall regions, whereas an increase of lignin is revealed in the compressed areas. These results support a new more "loose" cell wall model based on flexible lignin nanodomains and advance our knowledge of the molecular reorganization during deformation of wood for optimized processing and utilization. |
| Databáze: | OpenAIRE |
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