Emergence of polysaccharide membrane walls through macro-space partitioning via interfacial instability.

Abstract:

:Living organisms in drying environments build anisotropic structures and exhibit directionality through self-organization of biopolymers. However, the process of macro-scale assembly is still unknown. Here, we introduce a dissipative structure through a non-equilibrium process between hydration and deposition in the drying of a polysaccharide liquid crystalline solution. By controlling the geometries of the evaporation front in a limited space, multiple nuclei emerge to grow vertical membrane walls with macroscopic orientation. Notably, the membranes are formed through rational orientation of rod-like microassemblies along the dynamic three-phase contact line. Additionally, in the non-equilibrium state, a dissipative structure is ultimately immobilized as a macroscopically partitioned space by multiple vertical membranes. We foresee that such oriented membranes will be applicable to soft biomaterials with direction controllability, and the macroscopic space partitionings will aid in the understanding of the space recognition ability of natural products under drying environments.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Okeyoshi K,Okajima MK,Kaneko T

doi

10.1038/s41598-017-05883-z

subject

Has Abstract

pub_date

2017-07-21 00:00:00

pages

5615

issue

1

issn

2045-2322

pii

10.1038/s41598-017-05883-z

journal_volume

7

pub_type

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