来自纤维素纳米晶或基纳米晶的结构色:自组装,光学和应用
Bruno Frka-Petesic1,2, Thomas G Parton1, Camila Honorato-Rios3
1Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
Chemical reviews
|November 27, 2023
概括
自然衍生的纳米材料,如纤维素和基纳米晶,为先进的应用提供了可持续的替代方案. 它们的自我组装成液晶使得在薄膜和涂层中能够创建虹彩的结构颜色.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物材料是一种生物材料.
背景情况:
- 越来越多的环境问题推动了对可持续的,自然来源的功能性材料的搜索.
- 多糖,特别是纤维素和,是纳米材料的可再生,可生物降解和生物相容的原料.
- 纤维素 (CNCs) 和 (ChNCs) 的纳米晶体是机械增强和结构着色等应用的有希望的构建模块.
研究的目的:
- 通过使用纤维素纳米晶 (CNCs) 审查虹彩,结构性彩色薄膜的形成.
- 探索CNC片形成的潜在化学和物理机制.
- 将CNC与基纳米晶 (ChNC) 进行比较,用于结构色彩应用,并评估工业翻译.
主要方法:
- 对CNC和ChNC自组装和薄膜形成的现有文献的审查.
- 对CNC和ChNC悬浮液的液晶态行为的分析.
- 研究固态结构保留和光学特性.
主要成果:
- 在水中,CNC和ChNC自组织成溶性胆固醇液晶.
- 这种螺旋状排序可以在固态中保存,使纳米结构的薄膜和涂层成为可能.
- 通过对CNC和ChNC周期性,结构和几何学的控制操作,可以实现结构色彩.
结论:
- 纤维素和胺纳米晶体为可持续的,结构上有色的材料提供了可行的途径.
- 了解自组装机制是优化结构色彩的关键.
- 需要进一步的研究,以应对工业应用的科学和技术挑战.
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