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首页> 外文期刊>RSC Advances >Promoted hydrogel formation of lignin-containing arabinoxylan aerogel using cellulose nanofibers as a functional biomaterial
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Promoted hydrogel formation of lignin-containing arabinoxylan aerogel using cellulose nanofibers as a functional biomaterial

机译：使用纤维素纳米纤维作为功能性生物材料促进含木质素的阿拉伯木聚糖气凝胶的水凝胶形成

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摘要

In this work, three-dimensional (3D) aerogels and hydrogels based on lignin-containing arabinoxylan (AX) and cellulose nanofibers (CNF) were prepared. The effects of the CNF and the crosslinking with citric acid (CA) of various contents (1, 3, 5 wt%) were evaluated. All the aerogels possessed highly porous (above 98%) and lightweight structures. The AX-CNF hydrogel with a CA content of 1 wt% revealed a favorable network structure with respect to the swelling ratio; nanofiber addition resulted in a five-fold increase in the degree of swelling (68 g of water per g). The compressive properties were improved when the higher CA content (5 wt%) was used; when combined with CNF, there was a seven-fold enhancement in the compressive strength. The AX-CNF hydrogels were prepared using a green and straightforward method that utilizes sustainable resources efficiently. Therefore, such natural hydrogels could find application potential, for example in the field of soft tissue engineering.
机译：在这项工作中，基于含木质素的阿拉伯木聚糖（AX）和纤维素纳米纤维（CNF）制备了三维（3D）气凝胶和水凝胶。评估了CNF和各种含量（1、3、5 wt％）与柠檬酸（CA）交联的效果。所有气凝胶均具有高度多孔性（98％以上）和轻质结构。 CA含量为1 wt％的AX-CNF水凝胶相对于溶胀率显示出良好的网络结构。纳米纤维的添加导致溶胀度增加五倍（每克68克水）。当使用较高的CA含量（5 wt％）时，压缩性能得到改善;与CNF结合使用时，抗压强度提高了7倍。 AX-CNF水凝胶是使用绿色直接方法有效地利用可持续资源而制备的。因此，这种天然水凝胶可发现其应用潜力，例如在软组织工程领域。

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