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首页> 外文会议>Plasmonics in biology and medicine XII >Silver nanoislands based SERS-active substrates for DNAs detection
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Silver nanoislands based SERS-active substrates for DNAs detection

机译：基于银纳米岛的SERS活性底物，用于DNA检测

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摘要

Surface enhanced Raman spectroscopy (SERS) based on plasmonic colocalization between DNA attached gold nanoparticles and silver nanoislands substrates. Raman spectra measured on a silver nanoislands substrate were observed 20 and 1.8 folds signal enhancements relative to them on a film substrate with high and low numerical apertures of lenses, respectively. By comparison between calculations and experiments results, we proved that distinct differences of the signal enhancements came from changing field of view on random nanoislands substrate. Consequently, we show that nanoislands substrates with a precise position control can be a good candidate for a SERS substrate which can achieve significant signal enhancements without a complicated lithographic process.
机译：基于DNA附着的金纳米粒子和银纳米岛底物之间的等离子共定位的表面增强拉曼光谱（SERS）。相对于在具有高数值孔径和低数值透镜孔径的薄膜基材上，在银纳米岛基材上测得的拉曼光谱的信号增强分别为20倍和1.8倍。通过计算和实验结果之间的比较，我们证明了信号增强的明显差异来自于随机纳米岛基底上不断变化的视野。因此，我们表明具有精确位置控制的纳米岛基板可以成为SERS基板的良好候选者，该SERS基板无需复杂的光刻工艺即可实现明显的信号增强。

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  • 来源
    《Plasmonics in biology and medicine XII》|2015年|93400Y.1-93400Y.6|共6页
  • 会议地点 San Francisco CA(US)
  • 作者

    Hyerin Song; Seunghun Lee; Taeyoung Kang; Kyujung Kim;

  • 作者单位

    Pusan National University, Department of Cogno Mechatronics Engineering, Pusandaehak-ro, Pusan, South Korea, 609-735;

    Pusan National University, Department of Nanofusion Engineering, Pusandaehak-ro, Pusan, South Korea, 609-735;

    Pusan National University, Department of Nanofusion Engineering, Pusandaehak-ro, Pusan, South Korea, 609-735;

    Pusan National University, Department of Cogno Mechatronics Engineering, Pusandaehak-ro, Pusan, South Korea, 609-735;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Raman spectroscopy; Surface plasmons; Subwavelength structures; nanostructures;

    机译：拉曼光谱表面等离子体激元；亚波长结构；纳米结构;

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