Title : Aggregation-Induced Emission Enhancement (AIEE) phenomenon: A Smart Phenomenon for Sensing Applications
Abstract:
Recently, there has been a lot of activity in the development of fluorescent self-assembled aggregates due to their potential applications in nanostructure templating, light harvesting and energy transfer, chiral amplification and tuning, hole transportation, drug delivery, nanodevices, as photoswitches, logic gates, stimuli responsive materials, and sensors. Self-assembly of fluorescent molecules are known to exhibit significant changes in their photophysical properties as a result of intermolecular interactions. In most of the cases, such interactions lead to the fluorescence quenching. However, for many applications it is necessary to retain the fluorescence emission during the self-assembly of the molecules. Thus, it is important to develop a fluorescent material in which fluorescence of the molecules during the self-assembly does not quench. In this context, aggregation-induced emission enhancement (AIEE) phenomenon and fluorescent organogelation are the powerful tools to synthesize fluorescent aggregates.
Organic materials with aggregation-induced emission (AIE) and aggregation-induced emission enhancement (AIEE) have become a versatile tool for the construction of fluorescent self-assembled aggregates. The fluorescent aggregates formed by this AIE(E) strategy played an important role for the development of sensitive and selective fluorescent chemosensors. Further, fluorescent nanofibers formed from self-assembled aggregates have been found to be good sensing materials for the detection of nitroaromatic explosives. In the presentation, we have focused on the highlights of the fluorescent self-assembled aggregates based probes having sensing applications. The discussion comprises of structural designing for generating fluorescent aggregates for sensitive sensing of various analytes. Discussion on fluorescent self-assembled aggregates for detection of molecules will provide a new design strategy for the development of novel sensing systems.
Audience take-away:
- Aggregation-Induced Emission Enhancement phenomenon mechanism
- How fluorescent self-assembled aggregates are useful in sensing applications
- Other researchers can use the AIEE phenomenon to expand their research
- Yes, AIEE phenomenon provides practical solution to the problem and simplifies the designer’s job more efficient.
