Controlled Self-Assembly of Cellulose Nanocrystal as Custom-Tailored Photonics and Complex Soft Matter,Accounts of Materials Research

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Controlled Self-Assembly of Cellulose Nanocrystal as Custom-Tailored Photonics and Complex Soft Matter
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2024-09-13 , DOI: 10.1021/accountsmr.4c00216
Guang Chu ₁

Affiliation

Cellulose is widely distributed in nature and imparts structural integrity and mechanical support to the cell walls of plants, algae, and some bacteria. It has gained significant attention due to the growing demand for the fabrication of sustainable and high-performance materials. Various types of cellulosic materials are involved, among which cellulose nanocrystals (CNCs) emerge as a compelling next-gen material extracted from bulk cellulose, attracting considerable attention from both industry and academia. These rodlike colloidal materials exhibit remarkable mechanical, optical, and thermal properties due to their high aspect ratio, biodegradability, and renewable nature, providing promising opportunities for sustainable solutions to modern complex technological and societal challenges. Particularly noteworthy is the inherent chirality of CNC that triggers spontaneous self-assembly into left-handed helicoidal arrangements, termed cholesteric organization and sustained in both suspension and solid films. This unique property begets long-range ordered liquid crystallinity and polarization-sensitive structural color, highlighting the potential of CNC as a versatile platform for the design and fabrication of artificial functional materials with naturally derived alternatives. Benefiting from the robust self-assembly power of CNC, there is a burgeoning development in the creation of innovative nanocellulose-based materials.

中文翻译：

纤维素纳米晶体的受控自组装作为定制光子学和复杂软物质

纤维素在自然界中广泛分布，并为植物、藻类和一些细菌的细胞壁提供结构完整性和机械支撑。由于对制造可持续和高性能材料的需求不断增长，它受到了极大的关注。涉及各种类型的纤维素材料，其中纤维素纳米晶体（CNC）作为一种引人注目的从块状纤维素中提取的下一代材料出现，引起了工业界和学术界的极大关注。这些棒状胶体材料由于其高纵横比、生物降解性和可再生性而表现出卓越的机械、光学和热性能，为应对现代复杂技术和社会挑战的可持续解决方案提供了有前途的机会。特别值得注意的是 CNC 固有的手性，它触发自发自组装成左旋螺旋排列，称为胆固醇组织，并在悬浮和固体薄膜中持续存在。这种独特的特性产生了长距离有序的液晶度和对极化敏感的结构颜色，突出了 CNC 作为设计和制造具有天然衍生替代品的人工功能材料的多功能平台的潜力。得益于 CNC 强大的自组装能力，创新的纳米纤维素基材料的创造正在蓬勃发展。

更新日期：2024-09-13

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