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Superflexible WoodAuthor(s): Jianwei Song; Chaoji Chen; Chengwei Wang; Yudi Kuang; Yongfeng Li; Feng Jiang; Yiju Li; Emily Hitz; Ying Zhang; Boyang Liu; Amy Gong; Huiyang Bian; J. Y. Zhu; Jianhua Zhang; Jun Li; Liangbing Hu
Source: ACS Applied Materials & Interfaces. 9(28): 23520-23527.
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
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DescriptionFlexible porous membranes have attracted increasing scientific interest due to their wide applications in flexible electronics, energy storage devices, sensors, and bioscaffolds. Here, inspired by nature, we develop a facile and scalable top-down approach for fabricating a superflexible, biocompatible, biodegradable three-dimensional (3D) porous membrane directly from natural wood (coded as flexible wood membrane) via a one-step chemical treatment. The superflexibility is attributed to both physical and chemical changes of the natural wood, particularly formation of the wavy structure formed by simple delignification induced by partial removal of lignin/hemicellulose. The flexible wood membrane, which inherits its unique 3D porous structure with aligned cellulose nanofibers, biodegradability, and biocompatibility from natural wood, combined with the superflexibility imparted by a simple chemical treatment, holds great potential for a range of applications. As an example, we demonstrate the application of the flexible, breathable wood membrane as a 3D bioscaffold for cell growth.
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CitationSong, Jianwei; Chen, Chaoji; Wang, Chengwei; Kuang, Yudi; Li, Yongfeng; Jiang, Feng; Li, Yiju; Hitz, Emily; Zhang, Ying; Liu, Boyang; Gong, Amy; Bian, Huiyang; Zhu, J. Y.; Zhang, Jianhua; Li, Jun; Hu, Liangbing. 2017. Superflexible wood. ACS Applied Materials & Interfaces. 9(28): 23520-23527.
KeywordsWood chemistry, 3D porous structure, cellulose nanofibers, biocompatible, flexible
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