Nanoscale 3D cellular imaging by axial scanning transmission electron tomography.

Nanoscale 3D cellular imaging by axial scanning transmission electron tomography.
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纳米级3D细胞成像通过轴向扫描透射电子断层扫描。

DOI:
10.1038/nmeth.1367
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发表时间:
2009-10
期刊:
影响因子:
48
通讯作者:
Leapman, Richard D.
Leapman, Richard D.
中科院分区:
生物学1区
文献类型:
--
作者:
Hohmann-Marriott, Martin F.;Sousa, Alioscka A.;Azari, Afrouz A.;Glushakova, Svetlana;Zhang, Guofeng;Zimmerberg, Joshua;Leapman, Richard D.

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电子断层扫描提供了三维结构信息的超分子组件和细胞器中的细胞背景下,但图像退化,所造成的散射的透射电子,限制了适用性厚于300 nm的标本。我们表明,扫描透射电子断层扫描1000 nm厚的样品,使用轴向检测提供的分辨率与传统的电子断层扫描。该方法通过重建感染了疟疾寄生虫恶性疟原虫的人红细胞来证明。
Electron tomography provides three-dimensional structural information about supramolecular assemblies and organelles in a cellular context but image degradation, caused by scattering of transmitted electrons, limits applicability in specimens thicker than 300 nm. We show that scanning transmission electron tomography of 1000 nm thick samples using axial detection provides resolution comparable to conventional electron tomography. The method is demonstrated by reconstructing a human erythrocyte infected with the malaria parasite Plasmodium falciparum.
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