Facile treatment to fine-tune cellulose crystals in cellulose-silk biocomposites through hydrogen peroxide
Facile treatment to fine-tune cellulose crystals in cellulose-silk biocomposites through hydrogen peroxide
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DOI：
10.1016/j.ijbiomac.2020.01.100
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发表时间：
2020-03-15
影响因子：
8.2
通讯作者：
Salas-de la Cruz, David
中科院分区：
文献类型：
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作者：
Love, Stacy A.;Popov, Elizabeth;Salas-de la Cruz, David
由于从生物聚合物天然状态到更可用形式的转化的非平凡性质，用于生物材料设计的结构纤维蛋白质和多糖生物聚合物的调节仍然相对具有挑战性。为了深入了解蚕丝和纤维素链之间的分子相互作用的性质，我们表征了从离子液体1-乙基-3-甲基咪唑乙酸盐（EMIMAc）再生的蚕丝-纤维素生物复合材料的结构、热和形态学性质，作为增加凝固剂浓度的函数。我们发现纤维素的结晶度和晶体尺寸依赖于凝固剂过氧化氢溶液。我们的研究结果的解释表明，选择一个合适的凝固剂是一个关键步骤，控制蛋白质-多糖生物复合材料的理化性质。(C)2020 Elsevier B. V.保留所有权利。
The modulation of structural fibrous protein and polysaccharide biopolymers for the design of biomaterials is still relatively challenging due to the non-trivial nature of the transformation from a biopolymers native state to a more usable form. To gain insight into the nature of the molecular interaction between silk and cellulose chains, we characterized the structural, thermal and morphological properties of silk-cellulose biocomposites regenerated from the ionic liquid, 1-ethyl-3-methylimidazolium acetate (EMIMAc), as a function of increasing coagulation agent concentrations. We found that the cellulose crystallinity and crystal size are dependent on the coagulation agent, hydrogen peroxide solution. The interpretation of our results suggests that the selection of a proper coagulator is a critical step for controlling the physicochemical properties of protein-polysaccharide biocomposite materials. (C) 2020 Elsevier B.V. All rights reserved.