Mimicking the humidity response of the plant cell wall by using two-dimensional systems: The critical role of amorphous and crystalline polysaccharides

Elina Niinivaara, Marco Faustini, Tekla Tammelin, Eero Kontturi

    Research output: Contribution to journalArticleScientificpeer-review

    20 Citations (Scopus)

    Abstract

    Of the composite materials occurring in nature, the plant cell wall is among the most intricate, consisting of a complex arrangement of semicrystalline cellulose microfibrils in a dissipative matrix of lignin and hemicelluloses. Here, a biomimetic, two-dimensional cellulose system of the cell wall structure is introduced where cellulose nanocrystals compose the crystalline portion and regenerated amorphous cellulose composes the dissipative matrix. Spectroscopic ellipsometry and QCM-D are used to study the water vapor uptake of several two-layer systems. Quantitative analysis shows that the vapor-induced swelling of these ultrathin films can be controlled by varying ratios of the chemically identical ordered and unordered cellulose components. Intriguingly, increasing the share of crystalline cellulose appeared to increase the vapor uptake but only in cases for which the interfacial area between the crystalline and amorphous area was relatively large and the thickness of an amorphous overlayer was relatively small. The results show that a biomimetic approach may occasionally provide answers as to why certain native structures exist.
    Original languageEnglish
    Pages (from-to)2032-2040
    JournalLangmuir
    Volume32
    Issue number8
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    polysaccharides
    Polysaccharides
    cellulose
    Cellulose
    humidity
    Atmospheric humidity
    Crystalline materials
    biomimetics
    Biomimetics
    Vapors
    vapors
    lignin
    Spectroscopic ellipsometry
    Lignin
    Ultrathin films
    Steam
    matrices
    swelling
    Nanocrystals
    Water vapor

    Cite this

    @article{488b64cb37f04e7c947735df75d0b377,
    title = "Mimicking the humidity response of the plant cell wall by using two-dimensional systems: The critical role of amorphous and crystalline polysaccharides",
    abstract = "Of the composite materials occurring in nature, the plant cell wall is among the most intricate, consisting of a complex arrangement of semicrystalline cellulose microfibrils in a dissipative matrix of lignin and hemicelluloses. Here, a biomimetic, two-dimensional cellulose system of the cell wall structure is introduced where cellulose nanocrystals compose the crystalline portion and regenerated amorphous cellulose composes the dissipative matrix. Spectroscopic ellipsometry and QCM-D are used to study the water vapor uptake of several two-layer systems. Quantitative analysis shows that the vapor-induced swelling of these ultrathin films can be controlled by varying ratios of the chemically identical ordered and unordered cellulose components. Intriguingly, increasing the share of crystalline cellulose appeared to increase the vapor uptake but only in cases for which the interfacial area between the crystalline and amorphous area was relatively large and the thickness of an amorphous overlayer was relatively small. The results show that a biomimetic approach may occasionally provide answers as to why certain native structures exist.",
    author = "Elina Niinivaara and Marco Faustini and Tekla Tammelin and Eero Kontturi",
    year = "2016",
    doi = "10.1021/acs.langmuir.5b04264",
    language = "English",
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    pages = "2032--2040",
    journal = "Langmuir",
    issn = "0743-7463",
    publisher = "American Chemical Society ACS",
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    Mimicking the humidity response of the plant cell wall by using two-dimensional systems: The critical role of amorphous and crystalline polysaccharides. / Niinivaara, Elina; Faustini, Marco; Tammelin, Tekla; Kontturi, Eero.

    In: Langmuir, Vol. 32, No. 8, 2016, p. 2032-2040.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Mimicking the humidity response of the plant cell wall by using two-dimensional systems: The critical role of amorphous and crystalline polysaccharides

    AU - Niinivaara, Elina

    AU - Faustini, Marco

    AU - Tammelin, Tekla

    AU - Kontturi, Eero

    PY - 2016

    Y1 - 2016

    N2 - Of the composite materials occurring in nature, the plant cell wall is among the most intricate, consisting of a complex arrangement of semicrystalline cellulose microfibrils in a dissipative matrix of lignin and hemicelluloses. Here, a biomimetic, two-dimensional cellulose system of the cell wall structure is introduced where cellulose nanocrystals compose the crystalline portion and regenerated amorphous cellulose composes the dissipative matrix. Spectroscopic ellipsometry and QCM-D are used to study the water vapor uptake of several two-layer systems. Quantitative analysis shows that the vapor-induced swelling of these ultrathin films can be controlled by varying ratios of the chemically identical ordered and unordered cellulose components. Intriguingly, increasing the share of crystalline cellulose appeared to increase the vapor uptake but only in cases for which the interfacial area between the crystalline and amorphous area was relatively large and the thickness of an amorphous overlayer was relatively small. The results show that a biomimetic approach may occasionally provide answers as to why certain native structures exist.

    AB - Of the composite materials occurring in nature, the plant cell wall is among the most intricate, consisting of a complex arrangement of semicrystalline cellulose microfibrils in a dissipative matrix of lignin and hemicelluloses. Here, a biomimetic, two-dimensional cellulose system of the cell wall structure is introduced where cellulose nanocrystals compose the crystalline portion and regenerated amorphous cellulose composes the dissipative matrix. Spectroscopic ellipsometry and QCM-D are used to study the water vapor uptake of several two-layer systems. Quantitative analysis shows that the vapor-induced swelling of these ultrathin films can be controlled by varying ratios of the chemically identical ordered and unordered cellulose components. Intriguingly, increasing the share of crystalline cellulose appeared to increase the vapor uptake but only in cases for which the interfacial area between the crystalline and amorphous area was relatively large and the thickness of an amorphous overlayer was relatively small. The results show that a biomimetic approach may occasionally provide answers as to why certain native structures exist.

    U2 - 10.1021/acs.langmuir.5b04264

    DO - 10.1021/acs.langmuir.5b04264

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    EP - 2040

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    JF - Langmuir

    SN - 0743-7463

    IS - 8

    ER -