3D single-molecule super-resolution microscopy with a tilted light sheet.

3D single-molecule super-resolution microscopy with a tilted light sheet.
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DOI:
10.1038/s41467-017-02563-4
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发表时间:
2018-01-09
影响因子:
16.6
通讯作者:
Moerner WE
Moerner WE
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Gustavsson AK;Petrov PN;Lee MY;Shechtman Y;Moerner WE

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具有3D点扩散函数的倾斜光片显微术(TILT3D)将一种新颖的倾斜光片照明策略与长轴向范围点扩散函数(PSF)相结合,用于低背景、单分子的3D超定位以及厚细胞中的3D超分辨率成像。因为单个发射器的轴向位置被编码在每个单分子图像的形状中,而不是在光片的位置或厚度中,所以光片不需要非常薄。TILT3D是建立在一个标准的倒置显微镜,并有最少的自定义部件。结果是简单灵活的3D超分辨率成像,在整个厚哺乳动物细胞中具有数十nm的定位精度。我们通过使用双螺旋PSF进行单分子检测和最近开发的四足动物PSF进行基准珠跟踪和实时轴向漂移校正,对线粒体和全核层进行成像,验证了TILT3D在哺乳动物细胞中的3D超分辨率成像。光片单分子3D超分辨率显微镜不能靠近盖玻片成像,或者可能需要复杂的设备。在这里,作者克服了这样的限制,使用倾斜的光片战略与长轴向范围点扩散功能的标准倒置显微镜。
Tilted light sheet microscopy with 3D point spread functions (TILT3D) combines a novel, tilted light sheet illumination strategy with long axial range point spread functions (PSFs) for low-background, 3D super-localization of single molecules as well as 3D super-resolution imaging in thick cells. Because the axial positions of the single emitters are encoded in the shape of each single-molecule image rather than in the position or thickness of the light sheet, the light sheet need not be extremely thin. TILT3D is built upon a standard inverted microscope and has minimal custom parts. The result is simple and flexible 3D super-resolution imaging with tens of nm localization precision throughout thick mammalian cells. We validate TILT3D for 3D super-resolution imaging in mammalian cells by imaging mitochondria and the full nuclear lamina using the double-helix PSF for single-molecule detection and the recently developed tetrapod PSFs for fiducial bead tracking and live axial drift correction. Light-sheet single-molecule 3D super-resolution microscopes can’t image close to a coverslip or may require complex apparatus. Here the authors overcome such limitations using a tilted light sheet strategy with long axial range point spread functions on a standard inverted microscope.
DOI: 10.1038/nmeth.2277
发表时间: 2013-01
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影响因子: 48
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发表时间: 2011-11-15
影响因子: 11.1
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影响因子: 3.6
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