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Issue 12, 2013
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Self-organizing capacity of nanocelluloses via droplet evaporation

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Abstract

The relation between the fibril shapes and the self-organizing capacity was investigated by comparing the results of evaporation-induced self-assembly (EISA) in 2D (“coffee rings”) and 3D (spray-dried microparticles (MPs)) for rod-like and semi-flexible nanocelluloses. The rod-like tunicin nanowhiskers formed nematic alignment along the perimeter of coffee rings, and also formed curved discotic microparticles having nematic rings of width ∼300 nm by spray drying. On the other hand, the semi-flexible tunicin nanofibers failed to undergo a phase transition by EISA, and formed spray-dried MPs with multiple sharp kinks and rough contours. The rod-like nanocelluloses exhibited the self-organizing capacity of the phase transition and left-handed chirality. The expression of the self-organizing capacity of rod-like particles was found to be independent of initial droplet shapes and sizes via surface tension measurements.

Graphical abstract: Self-organizing capacity of nanocelluloses via droplet evaporation

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Publication details

The article was received on 10 Dec 2012, accepted on 22 Jan 2013 and first published on 11 Feb 2013


Article type: Paper
DOI: 10.1039/C3SM27822K
Citation: Soft Matter, 2013,9, 3396-3401

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    Self-organizing capacity of nanocelluloses via droplet evaporation

    K. Uetani and H. Yano, Soft Matter, 2013, 9, 3396
    DOI: 10.1039/C3SM27822K

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