Research on Chemically Deuterated Cellulose Macroperformance and Fast Identification.
Research on Chemically Deuterated Cellulose Macroperformance and Fast Identification.
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化学氘化纤维素宏观性能及快速鉴定研究
DOI：
10.3389/fpls.2021.709692
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发表时间：
2021
影响因子：
5.6
通讯作者：
Jiang W
中科院分区：
文献类型：
--
作者：
Song Y;Liu S;Ben H;Zhang Y;Han G;Ragauskas AJ;Jiang W
化学氘代纤维素纤维由于其光谱、生物和动力学同位素效应，有望提供新的应用。本研究对化学氘代棉纤维的力学性能、酶降解性能、对细菌处理的影响以及快速鉴定（近红外建模）等性能进行了研究。氘代棉纤维的断裂强度略低，这可能是由于化学氘代过程中纤维的结构发生了损伤。酶解的葡萄糖产率低于质子棉纤维，这意味着氘代纤维对酶降解不太敏感。此外，氘代纤维还能促进大肠杆菌等细菌的生长。大肠杆菌，这是与释放低水平的氘含量。最后，近红外技术结合偏最小二乘回归成功实现了对质子化和氘化棉纤维的快速鉴别，这显著促进了氘化纤维素作为防伪材料的潜在应用（例如，专用纸）。图形摘要
Chemically deuterated cellulose fiber was expected to provide novel applications due to its spectral, biological, and kinetic isotope effect. In this research, the performance of the chemically deuterated cotton fibers, including their mechanical property, enzymatic degradation performance, effect on bacterial treatment, and fast identification (near-infrared modeling) was investigated. The breaking tenacity of the deuterated cotton fibers was slightly lower, which might be attributed to the structural damage during the chemical deuteration. The glucose yield by enzymatic hydrolysis was less than that of the protonic cotton fibers, implying the deuterated fibers are less sensitive to enzymatic degradation. Furthermore, the deuterated fibers could promote the growth of bacteria such as Escherichia. coli, which was associated with the released low-level deuterium content. At last, the near-infrared technique combined with partial least squares regression successfully achieved a fast identification of the protiated and deuterated cotton fibers, which significantly promoted the potential application of deuterated cellulose as anticounterfeiting materials (e.g., special paper). Graphical Abstract
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