arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2010.04064physics.opticseess.IVphysics.app-phphysics.ins-det
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单分子定向定位显微术II:性能比较

Single-molecule orientation localization microscopy II: a performance comparison

Oumeng Zhang, Matthew D. Lew

摘要:

已经开发了各种技术来测量荧光分子的2D和3D位置以及2D和3D取向,其精度优于标准落射荧光显微镜。由于典型的单分子实验中具有挑战性的信号背景比,因此必须选择针对特定目标样品优化的成像系统。在这项工作中,我们比较了多个国家的最先进的和常用的方法对测量精度的基本限制方向定位显微镜的性能。我们的分析揭示了各种实验条件和样品几何形状的最佳成像方法。有趣的是,对标准荧光显微镜的简单修改在许多成像场景中表现出优异的性能。

英文摘要:

Various techniques have been developed to measure the 2D and 3D positions and 2D and 3D orientations of fluorescent molecules with improved precision over standard epifluorescence microscopes. Due to the challenging signal-to-background ratio in typical single-molecule experiments, it is essential to choose an imaging system optimized for the specific target sample. In this work, we compare the performance of multiple state-of-the-art and commonly used methods for orientation localization microscopy against the fundamental limits of measurement precision. Our analysis reveals optimal imaging methods for various experiment conditions and sample geometries. Interestingly, simple modifications to the standard fluorescence microscope exhibit superior performance in many imaging scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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