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Cellulose Nanocrystal Allomorphs: Morphology, Self-Assembly, and Polymer End-Tethering toward Chiral Metamaterials
Accounts of Materials Research ( IF 14.6 ) Pub Date : 2024-03-11 , DOI: 10.1021/accountsmr.3c00278
Justin O. Zoppe 1
Affiliation  

Figure 1. (A) Atomic force microscopy (AFM) height image of rod-like cellulose nanocrystals (CNCs), (B) chemical structure of an individual cellulose chain, consisting of β-1,4-linked β-d-anhydroglucopyranose units with a nonreducing (left) and reducing end (right), and (C) simplified illustration of a left-handed cholesteric liquid crystal domain of CNCs. Reproduced with permission from ref (12). Copyright 2021 American Chemical Society. Figure 2. Polarized optical microscopy (POM) image of typical fingerprint texture of the cholesteric phase of aqueous CNC suspensions (5 wt % CNCs, 1 mM NaCl) viewed between crossed linear polarizers. Line spacing corresponds to p/2. Reproduced with permission from ref (13). Copyright 2020 Royal Society of Chemistry. Figure 3. SEM images of (top) untreated- (cellulose I), (middle) mercerized- (cellulose II), (25) and (bottom) liquid ammonia-treated (cellulose III) (26) cotton fibers. Reproduced with permission from ref (25). Copyright 2014 Springer Nature. Cellulose III cotton fibers viewed under 640× magnification. Reproduced with permission from ref (26). Copyright 2022 Indian Journal of Fiber & Textile Research. Figure 4. Illustrations of simplified models of (A) a CNC pair, and (B) asymmetric and (C) symmetric end-tethered CNC pairs within a nematic layer of the cholesteric phase. The dotted circles represent volumes occupied by end-tethered polymers. Note that the asymmetric end-tethered CNC pair in (B) is arranged in an antiparallel manner. aReproduced with permission from ref (12). Copyright 2021 American Chemical Society. Funded by the European Union (ERC, CELICOIDS, 101087368). Justin Zoppe graduated from the University of North Carolina Wilmington with a bachelor’s degree in Chemistry and a minor in Mathematics in 2005. He later obtained his Ph.D. in Forest Biomaterials at North Carolina State University in 2011. After several stays as a Postdoctoral Fellow at Aalto University, EPFL, and the Adolphe Merkle Institute, he is currently a Serra Húnter Associate Professor in the Department of Materials Science & Engineering at the Universitat Politècnica de Catalunya - BarcelonaTech (UPC). There he forms part of the Polyfunctional Polymeric Materials (POLY2) research group. His primary research interest is in the synthesis and self-assemby of cellulose nanocrystals with end-tethered polymers toward applications in chiral metamaterials, for which he received an ERC Consolidator Grant in 2023. The author wishes to also acknowledge the financial support of the Spanish Ministry of Science and Innovation for the project HAMMER (PID2021-125595NB-I00) and the Serra Húnter Fellowship from the Generalitat de Catalunya. cellulose nanocrystal liquid crystal display cholesteric or chiral nematic evaporation-induced self-assembly atomic force microscopy poly[2-(2-(2-methoxy ethoxy)ethoxy)ethyl acrylate] This article references 35 other publications. This article has not yet been cited by other publications. Figure 1. (A) Atomic force microscopy (AFM) height image of rod-like cellulose nanocrystals (CNCs), (B) chemical structure of an individual cellulose chain, consisting of β-1,4-linked β-d-anhydroglucopyranose units with a nonreducing (left) and reducing end (right), and (C) simplified illustration of a left-handed cholesteric liquid crystal domain of CNCs. Reproduced with permission from ref (12). Copyright 2021 American Chemical Society. Figure 2. Polarized optical microscopy (POM) image of typical fingerprint texture of the cholesteric phase of aqueous CNC suspensions (5 wt % CNCs, 1 mM NaCl) viewed between crossed linear polarizers. Line spacing corresponds to p/2. Reproduced with permission from ref (13). Copyright 2020 Royal Society of Chemistry. Figure 3. SEM images of (top) untreated- (cellulose I), (middle) mercerized- (cellulose II), (25) and (bottom) liquid ammonia-treated (cellulose III) (26) cotton fibers. Reproduced with permission from ref (25). Copyright 2014 Springer Nature. Cellulose III cotton fibers viewed under 640× magnification. Reproduced with permission from ref (26). Copyright 2022 Indian Journal of Fiber & Textile Research. Figure 4. Illustrations of simplified models of (A) a CNC pair, and (B) asymmetric and (C) symmetric end-tethered CNC pairs within a nematic layer of the cholesteric phase. The dotted circles represent volumes occupied by end-tethered polymers. Note that the asymmetric end-tethered CNC pair in (B) is arranged in an antiparallel manner. aReproduced with permission from ref (12). Copyright 2021 American Chemical Society. This article references 35 other publications.

中文翻译:

纤维素纳米晶体同质异形体:手性超材料的形态、自组装和聚合物末端束缚

图 1. (A) 棒状纤维素纳米晶体 (CNC) 的原子力显微镜 (AFM) 高度图像,(B) 由 β-1,4-连接的 β- d-脱水吡喃葡萄糖单元组成的单个纤维素链的化学结构具有非还原端(左)和还原端(右),以及(C)CNC 左手胆甾型液晶域的简化图。经参考文献 (12) 许可转载。版权所有 2021 美国化学会。图 2. 在交叉线性偏振器之间观察的水性 CNC 悬浮液(5 wt% CNC,1 mM NaCl)的胆甾相的典型指纹纹理的偏光光学显微镜 (POM) 图像。行距对应于p /2。经参考文献 (13) 许可转载。版权所有 2020 英国皇家化学学会。图 3.(上)未处理(纤维素 I)、(中)丝光处理(纤维素 II)(25)和(下)液氨处理(纤维素 III)(26)棉纤维的 SEM 图像。经参考文献 (25) 许可转载。版权所有 2014 施普林格自然。在 640 倍放大倍率下观察的纤维素 III 棉纤维。经参考文献 (26) 许可转载。版权所有 2022 印度纤维与纺织品研究杂志。图 4. 胆甾相向列层内 (A) CNC 对、(B) 不对称和 (C) 对称末端束缚 CNC 对的简化模型图示。虚线圆圈代表末端束缚聚合物占据的体积。请注意,(B) 中的不对称端系 CNC 对以反平行方式排列。a经参考文献 (12) 许可转载。版权所有 2021 美国化学会。由欧盟资助(ERC、CELICOIDS、101087368)。贾斯汀·佐普2005年毕业于北卡罗来纳大学威尔明顿分校,获得化学学士学位,辅修数学。随后获得博士学位。 2011 年在北卡罗来纳州立大学获得森林生物材料博士学位。在阿尔托大学、洛桑联邦理工学院和阿道夫默克尔研究所担任博士后研究员后,他目前是理工大学材料科学与工程系的 Serra Húnter 副教授加泰罗尼亚 - 巴塞罗那科技大学 (UPC)。他是多官能聚合物材料 (POLY2) 研究小组的成员。他的主要研究兴趣是具有末端束缚聚合物的纤维素纳米晶体的合成和自组装,以应用于手性超材料,为此他于 2023 年获得了 ERC Consolidator 资助。作者还希望感谢西班牙部委的财政支持科学与创新项目 HAMMER (PID2021-125595NB-I00) 和加泰罗尼亚自治区政府的 Serra Húnter 奖学金。纤维素纳米晶液晶显示胆甾型或手性向列蒸发诱导自组装原子力显微镜聚[2-(2-(2-甲氧基乙氧基)乙氧基)乙基丙烯酸酯]本文参考了35篇其他出版物。这篇文章尚未被其他出版物引用。图 1. (A) 棒状纤维素纳米晶体 (CNC) 的原子力显微镜 (AFM) 高度图像,(B) 由 β-1,4-连接的 β- d-脱水吡喃葡萄糖单元组成的单个纤维素链的化学结构具有非还原端(左)和还原端(右),以及(C)CNC 左手胆甾型液晶域的简化图示。经参考文献 (12) 许可转载。版权所有 2021 美国化学会。图 2. 在交叉线性偏振器之间观察的水性 CNC 悬浮液(5 wt% CNC,1 mM NaCl)的胆甾相的典型指纹纹理的偏光光学显微镜 (POM) 图像。行距对应于p /2。经参考文献 (13) 许可转载。版权所有 2020 英国皇家化学学会。图 3.(上)未处理(纤维素 I)、(中)丝光处理(纤维素 II)(25)和(下)液氨处理(纤维素 III)(26)棉纤维的 SEM 图像。经参考文献 (25) 许可转载。版权所有 2014 施普林格自然。在 640 倍放大倍率下观察的纤维素 III 棉纤维。经参考文献 (26) 许可转载。版权所有 2022 印度纤维与纺织品研究杂志。图 4. 胆甾相向列层内 (A) CNC 对、(B) 不对称和 (C) 对称末端束缚 CNC 对的简化模型图示。虚线圆圈代表末端束缚聚合物占据的体积。请注意,(B) 中的不对称端系 CNC 对以反平行方式排列。A经参考文献 (12) 许可转载。版权所有 2021 美国化学会。本文引用了其他 35 篇出版物。
更新日期:2024-03-11
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