Title of article :
Rhodamine B aggregation in self-assembled multilayers induced by polyelectrolyte and interfacial fluorescence recognition for DNA
Author/Authors :
Xiangying، نويسنده , , Sun and Bin، نويسنده , , Liu and Ying، نويسنده , , Zhang، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2011
Abstract :
Photophysical properties of Rhodamine B bound to water-soluble polyanion sodium poly(4-styrenesulfonate) (PSS) in solution and Quartz/APES/PSS/RB SAMs were investigated. Experiments showed that Rhodamine B aggregated in Quartz/APES/PSS/RB SAMs and its fluorescence behavior was different from that in Quartz/APES/RB SAMs without PSS. The constructed Quartz/APES/PSS/RB SAMs were applied for label-free interfacial fluorescence sensing of DNA with extremely high sensitivity.
Keywords :
Rhodamine B , Self-assembled multilayers , Poly(4-styrenesulfonate) , DNA , Interfacial fluorescence recognition
