AFM observation of band-like cellulose assemblies produced by Acetobacter xylinum.
We succeeded in estimating the thickness of band-like cellulose assemblies by combined use of atomic force microscopy (AFM) and transmission electron microscopy. The thickness of "dense" band-like cellulose assemblies was estimated at 20-30 nm from their AFM height profiles, which was several times greater than that of "coarse" band-like and ribbonlike cellulose assemblies. On the basis of these results, the folded- chain model previously proposed was discussed, and a different organization of TC subunits was suggested for the "dense" band-like cellulose assembly.
Hirai
Asako
A
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan. hiraiasa@icr.mbox.media.kyoto-u.ac.jp
Tsujii
Yoshinobu
Y
Tsuji
Masaki
M
Horii
Fumitaka
F
D002482:Cellulose / Q000737:chemistry* / Q000648:ultrastructure*; D041822:Gluconacetobacter xylinus / Q000648:ultrastructure*; D046911:Macromolecular Substances / Q000737:chemistry; D018625:Microscopy, Atomic Force / Q000379:methods*; D046529:Microscopy, Electron, Transmission
D046911:Macromolecular Substances; D002482:Cellulose