由聚电解质诱导的自组装多层中罗丹明 B 的聚集以及用于 DNA 的界面荧光识别。
Rhodamine B aggregation in self-assembled multilayers induced by polyelectrolyte and interfacial fluorescence recognition for DNA.
机构信息
College of Material Science and Engineering, Huaqiao University, Xiamen 361021, China.
出版信息
Talanta. 2011 Aug 15;85(2):1187-92. doi: 10.1016/j.talanta.2011.05.035. Epub 2011 May 26.
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.
研究了罗丹明 B 与水溶性聚阴离子聚（4-苯乙烯磺酸钠）（PSS）在溶液中和 Quartz/APES/PSS/RB SAMs 中的光物理性质。实验表明，罗丹明 B 在 Quartz/APES/PSS/RB SAMs 中聚集，其荧光行为与没有 PSS 的 Quartz/APES/RB SAMs 不同。构建的 Quartz/APES/PSS/RB SAMs 被应用于具有极高灵敏度的无标记界面荧光传感 DNA。
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