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Issue 45, 2016
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Folding behavior and molecular mechanism of cross-linked biopolymer film in response to water

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Abstract

Water responsive biopolymers are gaining enormous attention in the different areas of research and applications related to self-folding. In this work, we report that cross-linking is an efficient means of modifying a single layer biopolymer film for a controlled and predictable pathway of folding. The initiation of the folding of a film is caused by the diffusion of water molecules along the film thickness. However, this folding is observed to take place in an unpredictable and random fashion with a pristine biopolymer film and a nano-particle reinforced film. The mechanical properties and the diffusion characteristics of the film are strongly interrelated and affect the overall folding behavior. The underlying mechanism behind this relation is appropriately substantiated by an in depth molecular dynamic study. The detailed characterization of the folding shape and material behavior is performed applying suitable experimental techniques. The potential application of the controlled folding of the cross-linked film as a sensor and as a soft crane is demonstrated in this report.

Graphical abstract: Folding behavior and molecular mechanism of cross-linked biopolymer film in response to water

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Publication details

The article was received on 30 Aug 2016, accepted on 15 Oct 2016 and first published on 18 Oct 2016


Article type: Paper
DOI: 10.1039/C6SM01994C
Citation: Soft Matter, 2016,12, 9210-9222
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    Folding behavior and molecular mechanism of cross-linked biopolymer film in response to water

    A. Rath, S. Mathesan and P. Ghosh, Soft Matter, 2016, 12, 9210
    DOI: 10.1039/C6SM01994C

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