文献类型：期刊文献

英文题名：Raman imaging: An indispensable technique to comprehend the functionalization of lignocellulosic material

作者：Leng, Weiqi[1] He, Sheng[2] Lu, Buyun[1] Thirumalai, Rooban Venkatesh K. G.[3] Nayanathara, R. M. Oshani[4] Shi, Jiangtao[1] Zhang, Rong[5] Zhang, Xuefeng[4]

第一作者：Leng, Weiqi

通信作者：Shi, JT[1];He, S[2];Zhang, XF[3]

机构：[1]Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing, Peoples R China;[2]China Natl Bamboo Res Ctr, Hangzhou, Peoples R China;[3]Mississippi State Univ, Inst Imaging & Analyt Technol, Starkville, MS USA;[4]Mississippi State Univ, Dept Sustainable Bioprod, Starkville, MS 39762 USA;[5]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

年份：2022

卷号：220

起止页码：159-174

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;Scopus(收录号：2-s2.0-85135951909);WOS:【SCI-EXPANDED(收录号:WOS:000863212900009)】；

基金：Funding This work was supported by the National Natural Science Foundation of China [grant numbers: 32001259] ; and Natural Science Foundation of Jiangsu Province [grant numbers: BK20200796] .

语种：英文

外文关键词：Raman imaging; Wood cell wall; Wood modification and functionalization

摘要：With the increasing demands on sustainability in the material science and engineering landscape, the use of wood, a renewable and biodegradable material, for new material development has drawn increasing attentions in the materials science community. To promote the development of new wood-based materials, it is critical to understanding not only wood's hierarchical structure from molecule to macroscale level, but also the interactions of wood with other materials and chemicals upon modification and functionalization. In this review, we discuss the recent advances in the Raman imaging technique, a new approach that combines spectroscopy and micro-scopy, in wood characterization and structural evolution monitoring during functionalization. We introduce the principles of Raman spectroscopy and common Raman instrumentations. We survey the use of traditional Raman spectroscopy for lignocellulosic material characterizations including cellulose crystallinity determination, hol-ocellulose discrimination, and lignin substructure evaluation. We briefly review the recent studies on wood property enhancement and functional wood-based material development through wood modification including thermal treatment, acetylation, furfurylation, methacrylation, delignification. Subsequently, we highlight the use of the Raman imaging for visualization, spatial and temporal distribution of wood cell wall structure, as well as the microstructure evolution upon functionalization. Finally, we discuss the future prospects of the field.