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Aggregation-Induced Emission-Active Fluorescent Polymer: Multi-Targeted Sensor and ROS Scavenger.
Herong Qin1, Jianbing Huang1, Hui Liang1
1Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Resin-Based Composites, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
ACS Applied Materials & Interfaces
|January 22, 2021
Summary
A novel polymer with aggregation-induced emission (AIE) properties acts as a water trace indicator in amide solvents. It also functions as a reactive oxygen species (ROS) scavenger and a fluorescent sensor for copper ions.
Area of Science:
- Polymer Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Aggregation-induced emission (AIE) materials offer unique optical properties.
- Reactive oxygen species (ROS) play critical roles in biological and environmental processes.
- Developing multi-functional polymers is essential for advanced applications.
Purpose of the Study:
- To synthesize a multi-functional polymer incorporating AIE-active salicylaldehyde azine (SA) and ROS-responsive thioether groups.
- To investigate the polymer's potential as a water trace indicator, ROS scavenger, and fluorescent sensor.
- To explore its applicability in biological and environmental monitoring.
Main Methods:
- Thiol-ene click polymerization of SA derivative diacrylate, poly(ethylene glycol) diacrylate, and 3,6-dioxa-1,8-octanedithiol.
- Spectroscopic analysis to characterize aggregation-induced emission (AIE) properties.
- Evaluation of ROS scavenging activity and metal ion sensing capabilities.
Main Results:
- The synthesized polymer exhibits strong AIE characteristics.
- The polymer shows a significant decrease in emission upon water detection in amide solvents, indicating its use as a water trace indicator.
- The polymer effectively scavenges ROS and selectively detects Cu2+ ions, demonstrating its multi-functional nature.
Conclusions:
- A novel multi-functional AIE polymer was successfully synthesized.
- The polymer demonstrates promising applications as a water trace indicator, ROS scavenger, and fluorescent sensor for Cu2+.
- This work highlights the potential of AIE polymers in diverse biological and environmental fields.
