This study presents a new fluorescent compound that responds sensitively to environmental polarity and viscosity. The compound is biocompatible, shows low toxicity, and selectively binds to lipid droplets in living cells, enabling precise monitoring of intracellular changes. These results highlight its potential as a powerful tool for exploring biological processes and microenvironmental properties. 
- Krittapong Leewongwat
- Quynh Nguyen Nhu Pham
- Supawadee Namuangruk
- Mongkol Sukwattanasinitt
- Young-Tae Chang
- Paitoon Rashatasakhon