The surface structure of well-ordered native cellulose fibrils in contact with water
2010 (English)In: Carbohydrate Research, ISSN 0008-6215, E-ISSN 1873-426X, Vol. 345, no 1, 97-100 p.Article in journal (Refereed) Published
CP/MAS C-13 NMR spectroscopy was used in combination with spectral fitting to examine the surface structure of hydrated cellulose I fibrils from Halocynthia and Gluconoacetobacter xylinus. To increase the spectral intensities and minimize signal overlap, G. xylinus celluloses site-specifically enriched in C-13 either on C4 or on both C1 and C6 were examined. The experimental data showed multiple C4 and C6 signals for the water accessible fibril surfaces in the highly crystalline celluloses. These signal multiplicities were attributed to structural features in the surface layers induced by the fibril interior, and could not be extracted by spectral fitting in celluloses with a lower degree of crystallinity such as cellulose from cotton.
Place, publisher, year, edition, pages
2010. Vol. 345, no 1, 97-100 p.
Cellulose, CP/MAS C-13 NMR, Spectral fitting, Halocynthia, Gluconoacetobacter xylinus, cp/mas c-13-nmr spectroscopy, conformations, assignment
Biochemistry and Molecular Biology
IdentifiersURN: urn:nbn:se:kth:diva-19131DOI: 10.1016/j.carres.2009.10.020ISI: 000273865100014ScopusID: 2-s2.0-71649106584OAI: oai:DiVA.org:kth-19131DiVA: diva2:337178
QC 201005252010-08-052010-08-052015-05-26Bibliographically approved