What factors determine hierarchical structure of microbial cellulose - Interplay among physics, chemistry and biology

Satoshi Koizumi, Yoko Tomita, Tetsuo Kondo, Takeji Hashimoto

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A microbial cellulose film (pellicle), prepared by Acetorbactor xylinum, is a supramolecule system, absorbing a huge amount of water (99% by weight). To elucidate the affinity to water, we investigated the hierarchical structure in a pellicle by using ultra-small-angle and small-angle neutron scattering, observing a wide range of length scales from nm to mm. We successfully determined mass fractal dimensions for the amorphous structure, which hierarchically varies local concentration fluctuations, bundle and network, appeared as the length scale increases. On a basis of these findings, we discuss to address a question what factors determine the hierarchy in the microbial cellulose. This is a new topic of soft matter science, regarded as reaction-induced self-assembly in a non-equilibrium open system, therein soft matter physics, biochemistry and cell biology crucially interplay.

Original languageEnglish
Pages (from-to)110-118
Number of pages9
JournalMacromolecular Symposia
Volume279
Issue number1
DOIs
Publication statusPublished - May 1 2009

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pellicle
biology
cellulose
Cellulose
Physics
Cytology
Cellulose films
chemistry
biochemistry
Biochemistry
physics
Water
Open systems
Fractal dimension
Neutron scattering
Self assembly
water
bundles
hierarchies
affinity

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

What factors determine hierarchical structure of microbial cellulose - Interplay among physics, chemistry and biology. / Koizumi, Satoshi; Tomita, Yoko; Kondo, Tetsuo; Hashimoto, Takeji.

In: Macromolecular Symposia, Vol. 279, No. 1, 01.05.2009, p. 110-118.

Research output: Contribution to journalArticle

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