Journal
FRONTIERS IN PLANT SCIENCE
Volume 12, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2021.709692
Keywords
chemically deuterated cellulose; cotton; hydrogen-deuterium exchange; NIR; PLS
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Funding
- National Natural Science Foundation of China [51903131]
- Natural Science Foundation of Shandong Province [ZR2019QEM007, ZR2020ME076]
- Key Research and Development Program of Shandong Province [2020CXGC011101]
- State Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) [ZKT16, ZKT21]
- Special Foundation of Taishan Scholar Construction Program [ts20190932]
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Chemically deuterated cellulose fiber has limitations in mechanical properties and enzymatic degradation performance. However, it can promote bacterial growth and be quickly identified by near-infrared technique, potentially serving as anticounterfeiting materials.
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).
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