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首页> 外文期刊>Plasmonics >Selectively Imaging Single Gold Nanorods by Polarized Light Microscopy with Low Background
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Selectively Imaging Single Gold Nanorods by Polarized Light Microscopy with Low Background

机译:低背景偏振光显微镜对单个金纳米棒的选择性成像

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摘要

We introduce a novel method for single gold nanorods (GNRs) imaging by polarized light microscopy (PLM) based on their light depolarization light property. The results demonstrate that GNRs can be selectively seen by PLM, while sphere gold nanoparticles only can be observed under darkfield microscopy (DFM). When PLM is applied in single nanoparticle imaging, there are many outstanding features. For example, the average light spot of GNRs occupies 71 +/- 26 pixels, which is only 42 % of that under DFM. The background is significantly reduced and signal-to-noise ratio is greatly improved by at least 3.6 times. Even GNRs in cells can be clearly detected with extreme low background, and the distributions of GNRs in the intracellular space were found to be ununiform. GNRs combined with PLM may find various uses in biomedical and clinical applications as well as in fundamental studies.
机译:我们介绍了一种基于偏振光显微镜(PLM)的单金纳米棒(GNR)成像的新方法,基于它们的光去偏振光特性。结果表明,PLM可以选择性地看到GNR,而球形金纳米颗粒只能在暗场显微镜(DFM)下观察到。当PLM用于单个纳米颗粒成像时,有许多突出的功能。例如,GNR的平均光斑占71 +/- 26像素,仅是DFM下的42%。显着降低了本底,信噪比提高了至少3.6倍。即使在极低的背景下也可以清楚地检测到细胞中的GNR,并且发现GNR在细胞内空间中的分布不均匀。结合PLM的GNR可能在生物医学和临床应用以及基础研究中有多种用途。

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