Fluorescence Spectroscopic Studies on the Interaction Between 2,5-Diphenyl Oxazole and Triton X-100 Micelle

摘要

The interaction between Triton X-100 (TX-100) and 2,5-diphenyl oxazole (2,5-DPO) has been investigated successfully by fluorescence and UV–vis study. The fluorescence resonance energy transfer (FRET) between donor TX-100 and acceptor 2,5-DPO was examined. UV–vis study shows that there is no formation of ground state complex between donor and acceptor pair in solution. The fluorescence emission and energy transfer efficiency has been determined in both premicellar and postmicellar condition. The distances r = 3.23 and 2.79 nm were calculated in premicellar and postmicellar solutions, respectively. The study indicates that energy transfer in postmicellar environment is remarkably higher than that in case of premicellar situation.