title: Rhodamine B aggregation in self-assembled multilayers induced by polyelectrolyte and interfacial fluorescence recognition for DNA.
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.
authors: College of Material Science and Engineering, Huaqiao University, Xiamen 361021, China. sunxy@hqu.edu.cn
authors: Sun
authors: S
authors: Xiangying
authors: Liu
authors: L
authors: Bin
authors: Zhang
authors: Z
authors: Ying
mesh_terms: D000818:Animals; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D004277:DNA, Single-Stranded / Q000032:analysis* / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D011791:Quartz / Q000737:chemistry; D012235:Rhodamines / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013451:Sulfonic Acids / Q000737:chemistry*
chemical_list: D004277:DNA, Single-Stranded; D011108:Polymers; D012235:Rhodamines; D012821:Silanes; D012996:Solutions; D013451:Sulfonic Acids; D011791:Quartz; C029773:rhodamine B; C077114:styrenesulfonic acid polymer