Wood Deformation Leads to Rearrangement of Molecules at the Nanoscale

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...

Full description

Saved in:
Bibliographic Details
Published inNano letters Vol. 20; no. 4; pp. 2647 - 2653
Main Authors Felhofer, Martin, Bock, Peter, Singh, Adya, Prats-Mateu, Batirtze, Zirbs, Ronald, Gierlinger, Notburga
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 08.04.2020
Subjects
Letter
lignin
Wood
atomic force microscopy (AFM)
Raman spectroscopy
cell wall
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1530-6984
1530-6992
DOI:10.1021/acs.nanolett.0c00205