He Xinyuan, Zhang Jianyu, Liu Xinyue, Jin Zhuwei, Lam Jacky W Y, Tang Ben Zhong
Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hongkong-Macou Joint Laboratory of Optoelectronic, Magnetic Functional Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou, 510640, China.
Angew Chem Int Ed Engl. 2023 Apr 24;62(18):e202300353. doi: 10.1002/anie.202300353. Epub 2023 Mar 22.
Functional materials with multi-responsive properties and good controllability are highly desired for developing bioinspired and intelligent multifunctional systems. Although some chromic molecules have been developed, it is still challenging to realize in situ multicolor fluorescence changes based on a single luminogen. Herein, we reported an aggregation-induced emission (AIE) luminogen called CPVCM, which can undergo a specific amination with primary amines to trigger luminescence change and photoarrangement under UV irradiation at the same active site. Detailed mechanistic insights were carried out to illustrate the reactivity and reaction pathways. Accordingly, multiple-colored images, a quick response code with dynamic colors, and an all-round information encryption system were demonstrated to show the properties of multiple controls and responses. It is believed that this work not only provides a strategy to develop multiresponsive luminogens but also develops an information encryption system based on luminescent materials.
具有多响应特性和良好可控性的功能材料对于开发仿生和智能多功能系统具有很高的需求。尽管已经开发了一些变色分子，但基于单一发光体实现原位多色荧光变化仍然具有挑战性。在此，我们报道了一种名为CPVCM的聚集诱导发光（AIE）发光体，它可以与伯胺发生特定的胺化反应，在相同的活性位点上在紫外光照射下触发发光变化和光排列。进行了详细的机理研究以阐明反应性和反应途径。因此，展示了多色图像、具有动态颜色的二维码和全方位信息加密系统，以展示多重控制和响应的特性。相信这项工作不仅提供了一种开发多响应发光体的策略，还开发了一种基于发光材料的信息加密系统。
