array(2) { ["lab"]=> string(3) "879" ["publication"]=> string(4) "6480" } sensor for Cu(II) based on R6G derivatives modified silicon nanowires - 师文生 课题组 | LabXing

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简介 应用光电纳米材料与器件

大学 中国科学院理化技术研究所 / 光电信息材料与器件
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sensor for Cu(II) based on R6G derivatives modified silicon nanowires

2011
期刊 Journal of Luminescence
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A fluorescence sensor for selective detection of Cu(II) is realized by covalently immobilizing derivatives of rhodamine6G (R6G) on the surface of silicon nanowires (SiNWs). It features the release of R6G from the SiNWs in the presence of Cu(II), which causes a significant enhancement of the fluorescence over other metal ions. The present Cu(II) sensor has good selectivity and sensitivity, and exhibits a linear response in the range of 0.0–7.0 μM Cu(II). Different from conventional Cu(II) sensor with fluorescence quenching, the present sensor based on fluorescence enhancement facilitates the practical application. Especially, the release of the R6G from SiNWs could be utilized as fluorescent labeling for Cu(II) in microenvironment.

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