Helicoidal self-ordering of cellulose microfibrils in aqueous suspension.

Abstract:

:In many skeletal support systems of plants and animals, cellulose, chitin, and collagen occur in the form of microfibrils ordered in a chiral nematic fashion (helicoids). However, these structures remain poorly understood due to the many constituents present in biological tissues. Here we report an in vitro system that attracts by its simplicity. Only one chemical component, cellulose, is present in the form of fibrillar fragments dispersed in water. Above a critical concentration the colloidal dispersion separates spontaneously into a chiral nematic liquid crystalline phase. On drying this phase solidifies into regularly twisted fibrillar layers that mimic the structural organization of helicoids in nature.

journal_name

Int J Biol Macromol

authors

Revol JF,Bradford H,Giasson J,Marchessault RH,Gray DG

doi

10.1016/s0141-8130(05)80008-x

keywords:

subject

Has Abstract

pub_date

1992-06-01 00:00:00

pages

170-2

issue

3

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(05)80008-X

journal_volume

14

pub_type

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