Three-dimensional electron ptychography of organic-inorganic hybrid nanostructures.
Three-dimensional electron ptychography of organic-inorganic hybrid nanostructures.
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有机-无机杂化纳米结构的三维电子叠印术
DOI:
10.1038/s41467-022-32548-x
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发表时间:
2022-08-15
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
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作者:
Three dimensional scaffolded DNA origami with inorganic nanoparticles has been used to create tailored multidimensional nanostructures. However, the image contrast of DNA is poorer than those of the heavy nanoparticles in conventional transmission electron microscopy at high defocus so that the biological and non-biological components in 3D scaffolds cannot be simultaneously resolved using tomography of samples in a native state. We demonstrate the use of electron ptychography to recover high contrast phase information from all components in a DNA origami scaffold without staining. We further quantitatively evaluate the enhancement of contrast in comparison with conventional transmission electron microscopy. In addition, We show that for ptychography post-reconstruction focusing simplifies the workflow and reduces electron dose and beam damage. The authors demonstrate electron ptychographic computed tomography by simultaneously recording high contrast data from both the organic- and inorganic components in a 3D DNA-origami framework hybrid nanostructure.
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影响因子:
16.6
作者:
Gao S;Sun Z;Liu W;Jiao X;Zu X;Hu Q;Sun Y;Yao T;Zhang W;Wei S;Xie Y
通讯作者:
Xie Y
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
16.6
作者:
He, Yu;Su, Min;Mao, Chengde
通讯作者:
Mao, Chengde
影响因子:
3
作者:
Briegel, Ariane;Pilhofer, Martin;Mastronarde, David N.;Jensen, Grant J.
通讯作者:
Jensen, Grant J.
影响因子:
3.7
作者:
Chang, Dillan J.;Kim, Dennis S.;Miao, Jianwei
通讯作者:
Miao, Jianwei