Elastic and pH responsive hybrid interfaces created with engineered resilin and nanocellulose

Wenwen Fang, Arja Paananen, Marika Vitikainen, Salla Koskela, Ann Westerholm-Parvinen, Jussi Joensuu, Christopher Landowski, Merja Penttilä, Markus B. Linder, Päivi Laaksonen

    Research output: Contribution to journalArticleScientificpeer-review

    12 Citations (Scopus)

    Abstract

    We investigated how a genetically engineered resilin fusion protein modifies cellulose surfaces. We characterized the pH-responsive behavior of a resilin-like polypeptide (RLP) having terminal cellulose binding modules (CBM) and showed its binding to cellulose nanofibrils (CNF). Characterization of the resilin fusion protein at different pHs revealed substantial conformational changes of the protein, which were observed as swelling and contraction of the protein layer bound to the nanocellulose surface. In addition, we showed that employment of the modified resilin in cellulose hydrogel and nanopaper increased their modulus of stiffness through a cross-linking effect.

    Original languageEnglish
    Pages (from-to)1866-1873
    Number of pages8
    JournalBiomacromolecules
    Volume18
    Issue number6
    DOIs
    Publication statusPublished - 12 Jun 2017
    MoE publication typeA1 Journal article-refereed

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