Portable SERS sensor for malachite green and other small dye molecules

文献类型： 外文期刊

第一作者： Qiu, Suyan

作者： Qiu, Suyan;Qiu, Suyan;Zhao, Fusheng;Li, Jingting;Shih, Wei-Chuan;Shih, Wei-Chuan;Shih, Wei-Chuan;Shih, Wei-Chuan

作者机构：

关键词： Portable SERS;Nanoporous gold nanoparticle;NPG-NP array chip;Guanine-quadruplex;Malachite green

期刊名称：OPTICAL DIAGNOSTICS AND SENSING XVII: TOWARD POINT-OF-CARE DIAGNOSTICS

ISSN： 0277-786X

年卷期： 2017 年 10072 卷

页码：

收录情况： SCI

摘要： Sensitive detection of specific chemicals on site can be extremely powerful in many fields. Owing to its molecular fingerprinting capability, surface-enhanced Raman scattering has been one of the technological contenders. In this paper, we describe the novel use of DNA topological nanostructure on nanoporous gold nanoparticle (NPG-NP) array chip for chemical sensing. NPG-NP features large surface area and high-density plasmonic field enhancement known as "hotspots". Hence, NPG-NP array chip has found many applications in nanoplasmonic sensor development. This technique can provide novel label-free molecular sensing capability and enables high sensitivity and specificity detection using a portable Raman spectrometer.

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