Engineering a DNA origami mediated multicolour quantum dot platform for sub-diffraction spectral separation imaging.

Engineering a DNA origami mediated multicolour quantum dot platform for sub-diffraction spectral separation imaging.
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DOI:
10.1039/d2ra04316e
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发表时间:
2022-08-22
期刊:
影响因子:
3.9
通讯作者:
--
中科院分区:
化学3区
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--
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超分辨率光学成像技术的验证需要定义良好的参考样品,这些样品可以重复可靠地用作模型标准。在这里,我们设计了一种DNA折纸支架介导的多色量子点杂化纳米结构,并使用最近提出的基于量子点的光谱分离技术对其进行测试。我们表明,多价DNA结构提供了一个坚固和精确的纳米级量子点放置支架,而光谱分辨率方法提供了相对简单和快速的图像采集能力,使用任何能够分离光谱信号和单一激发激光波长的标准共焦或荧光显微镜。超分辨率光学成像技术的验证需要定义良好的参考样品,这些样品可以重复可靠地用作模型标准。
The validation of super-resolution optical imaging techniques requires well-defined reference samples that can be used repeatedly and reliably as model standards. Here, we engineer a DNA origami scaffold-mediated multicolour quantum dot hybrid nanostructure and test it using a recently proposed Quantum Dot-based spectral separation technique. We show that multivalent DNA structures offer a robust and precise nanoscale quantum dot placement scaffold, while the spectral resolution method provides relatively simple and fast image acquisition capabilities using any standard confocal or fluorescence microscope capable of spectral signal separation and a single excitation laser wavelength. The validation of super-resolution optical imaging techniques requires well-defined reference samples that can be used repeatedly and reliably as model standards.
DOI: 10.1073/pnas.0401638101
发表时间: 2004-04-27
影响因子: 11.1
作者:
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