Multiple photofluorochromic luminogens via catalyst-free alkene oxidative cleavage photoreaction for dynamic 4D codes encryption.
Lin LuBo WuXinyuan HeFen ZhaoXing FengDong WangZijie QiuTing HanZheng ZhaoBen-Zhong TangPublished in: Nature communications (2024)
Controllable photofluorochromic systems with high contrast and multicolor in both solutions and solid states are ideal candidates for the development of dynamic artificial intelligence. However, it is still challenging to realize multiple photochromism within one single molecule, not to mention good controllability. Herein, we report an aggregation-induced emission luminogen TPE-2MO2NT that undergoes oxidation cleavage upon light irradiation and is accompanied by tunable multicolor emission from orange to blue with time-dependence. The photocleavage mechanism revealed that the self-generation of reactive oxidants driving the catalyst-free oxidative cleavage process. A comprehensive analysis of TPE-2MO2NT and other comparative molecules demonstrates that the TPE-2MO2NT molecular scaffold can be easily modified and extended. Further, the multicolor microenvironmental controllability of TPE-2MO2NT photoreaction within polymer matrices enables the fabrication of dynamic fluorescence images and 4D information codes, providing strategies for advanced controllable information encryption.
Keyphrases
- single molecule
- artificial intelligence
- deep learning
- flow cytometry
- dna binding
- machine learning
- big data
- living cells
- atomic force microscopy
- room temperature
- ionic liquid
- highly efficient
- reduced graphene oxide
- magnetic resonance
- health information
- tissue engineering
- visible light
- metal organic framework
- convolutional neural network
- optical coherence tomography
- gold nanoparticles
- energy transfer
- contrast enhanced
- radiation induced