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Updated: Jan 12, 2026
Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
Published on: September 8, 2016
Multiscale tracking of emulsion dynamics by aggregation-induced emission
Jin Wang1, Xinyue Liu1, Zihe Liu2
1Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, Division of Life Science, and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong 999077, China.
This study introduces a unified strategy using aggregation-induced emission fluorogens (AIEgens) to monitor material dynamics across multiple scales. This approach overcomes limitations of traditional methods, enabling precise tracking from molecular to macroscopic levels.
Area of Science:
- Materials Science
- Chemical Engineering
- Physical Chemistry
Background:
- Investigating multiscale material dynamics requires synchronous cross-scale analysis.
- Traditional multiplatform methods suffer from low efficiency and analytical uncertainty.
- Existing techniques struggle to bridge molecular, microscale, and macroscale observations.
Purpose of the Study:
- To develop a unified monitoring strategy for multiscale material dynamics.
- To overcome the limitations of traditional multiplatform methods.
- To integrate molecular conformational dynamics with microscale and macroscale evolution.
Main Methods:
- Development of a unified monitoring strategy using aggregation-induced emission fluorogens (AIEgens).
- Utilizing AIEgens' high-contrast photoluminescence (PL) activation triggered by restricted intramolecular motion (RIM).
- Concurrent tracking of molecular, microscopic (particle coalescence, phase transitions), and macroscopic (drying dynamics) phenomena.
Main Results:
- AIEgens enabled ultrasensitive PL transitions quantifying molecular dynamics during emulsion-to-film evolution.
- The platform concurrently tracked particle coalescence and phase transitions at the microscopic level.
- Macroscopic drying dynamics were monitored with high contrast and precision using the AIEgen-assisted platform.
Conclusions:
- The developed methodology integrates molecular, microscale, and macroscale dynamics into a single optical framework.
- This approach circumvents platform-dependent analytical limitations, offering a generalizable solution.
- The AIEgen-based platform provides a holistic interpretation of complex material system dynamics, demonstrated with polymer emulsions.
