高等学校化学学报
高等學校化學學報
고등학교화학학보
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES
2010年
1期
61-63
,共3页
曹烁晖%谢堂堂%蔡伟鹏%李耀群
曹爍暉%謝堂堂%蔡偉鵬%李耀群
조삭휘%사당당%채위붕%리요군
表面等离子体耦合定向荧光%铁薄膜%定向角%双荧光团
錶麵等離子體耦閤定嚮熒光%鐵薄膜%定嚮角%雙熒光糰
표면등리자체우합정향형광%철박막%정향각%쌍형광단
Surface plasmon-coupled directional fluorescence(SPCDF)%Thin iron film%Directional emission angle%Dual fluorophore
The observation of surface plasmon-coupled directional fluorescence(SPCDF) on thin iron films was presented. SPCDF from thin iron films was p-polarized with a directional emission angle of 70°. Fluorescein and meso-tetra(4-sulfonatophenyl)porphine(TPPS) were used as a model system of dual fluorophores. Using 25 nm thin iron films, the SPCDF signals of the two fluorophores were observed at a fixed angle just by one scan. The SPCDF signals of Fluorescein and TPPS added to whole blood were identified clearly, eliminating the background interference of blood effectively. Thin iron films have been proven to be new materials for SPCDF detection, promoting a new mode to observe the enhanced fluorescence signals of different fluorophores by one scan. They should be useful for tracking the labled systems of multi-fluorophores in biological applications.
