Fabrication of wood-inspired high-performance composites through fermentation routes
Fabrication of wood-inspired high-performance composites through fermentation routes
复制标题
DOI：
10.1007/s10570-021-04354-z
复制
发表时间：
2022-01
期刊：
影响因子：
5.7
通讯作者：
Prodyut Dhar;Kazuki Sugimura;M. Yoshioka;A. Yoshinaga;Hiroshi Kamitakahara
中科院分区：
文献类型：
--
作者：
Prodyut Dhar;Kazuki Sugimura;M. Yoshioka;A. Yoshinaga;Hiroshi Kamitakahara
在本文中，我们开发了一种微生物途径来制造可与天然木材相媲美的受木材启发的仿生复合材料。我们着眼于木质生物质的化学成分，对吸收改性阳离子木质素（Catlig）的细菌纤维素（BC）进行了原位生物加工，其在改善微生物生长动力学方面表现出显着的生物活性。 BC 和 Catlig 在生物合成过程中形成的疏水和静电相互作用增强了结构和形态特征。微生物衍生的 BC/Catlig 复合材料具有增强的热稳定性和结晶度，具有定向纤维素纤维。 BC/Catlig 复合材料的拉伸性能、韧性和比强度与水合条件下的重木种（锯齿榉）和合成软材料相当。图形摘要
In this paper, we developed a microbial route to fabricate wood-inspired biomimetic composites comparable to natural wood. Focusing on the chemical composition of woody biomass, we performed in situ bioprocessing of bacterial cellulose (BC) imbibed in modified cationic lignin (Catlig), which exhibited significant bioactivity in improving the microbial growth dynamics. The structural and morphological characteristics were enhanced by the formation of hydrophobic and electrostatic interactions between BC and Catlig during biosynthesis. Microbially derived BC/Catlig composites exhibited enhanced thermal stability and crystallinity, with oriented cellulose fibers. The tensile properties, toughness, and specific strength of BC/Catlig composites were comparable to those of a heavy wood species (Zelkova serrata) under hydrated conditions and synthetic soft materials.Graphic abstract