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Journal ArticleDOI

Electron tomography and holography in materials science

TLDR
An overview of the techniques of electron tomography and electron holography is presented and their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences are demonstrated.
Abstract
The rapid development of electron tomography, in particular the introduction of novel tomographic imaging modes, has led to the visualization and analysis of three-dimensional structural and chemical information from materials at the nanometre level. In addition, the phase information revealed in electron holograms allows electrostatic and magnetic potentials to be mapped quantitatively with high spatial resolution and, when combined with tomography, in three dimensions. Here we present an overview of the techniques of electron tomography and electron holography and demonstrate their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences.

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Citations
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Dissertation

Atomic resolution imaging in two and three dimensions

TL;DR: In this paper, the authors explored theoretical aspects of scanning transmission electron microscopy (STEM) and the comparison of simulation with experiment and found that quantitative agreement between theoretical and experimental images is possible provided that theory suitably accounts for the spatial incoherence of the source, and that experimental images are placed on an absolute scale with respect to the incident beam current.
Journal ArticleDOI

Structural characterization of ZnS nanocrystals with a conic head using HR–TEM and HAADF tomography

TL;DR: In this article, the authors obtained ZnS nanocrystals with an apparent triangular head, which is not the frequently-reported pyramid, but rather a cone consisting of not only low energy planes but high Miller-index planes.
Proceedings ArticleDOI

High-resolution 3D structural and optical analyses of hybrid or composite materials by means of scanning probe microscopy combined with the ultramicrotome technique: an example of application to engineering of liquid crystals doped with fluorescent quantum dots

TL;DR: In this article, the 3D structure of a cholesteric liquid crystal matrix is reconstructed by combination of ultramicrotomic and SPM techniques allowing the study of the distribution of implanted nanoparticles and their effect on the matrix structure.

Development of x-ray holography methods for structure determination : Application of high speed detectors and novel numerical methods

Yuhao Wang
TL;DR: In this paper, the development of X-ray HOLOGRAPHY METHODS for STRUCTURE DETERMINATION is described. And the application of high speed DETECTORS and novel number-based methods is discussed.
Journal ArticleDOI

Three-dimensional electron ptychography of organic–inorganic hybrid nanostructures

TL;DR: In this article , the authors demonstrate the use of electron ptychography to recover high contrast phase information from all components in a DNA origami scaffold without staining, and quantitatively evaluate the enhancement of contrast in comparison with conventional transmission electron microscopy.
References
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Journal ArticleDOI

Representation of a Function by Its Line Integrals, with Some Radiological Applications

TL;DR: In this paper, a method for finding a real function in a finite region of a plane given its line integrals along all straight lines intersecting the region was given, and the solution found is applicable to three problems of interest for precise radiology and radiotherapy: (1) the determination of a variable x-ray absorption coefficient in two dimensions, (2) the distribution of positron annihilations when there is an inhomogeneous distribution of the positron emitter in matter, and (3) a variable density of matter with constant chemical composition, using the energy loss
Journal ArticleDOI

Iterative methods for the three-dimensional reconstruction of an object from projections

TL;DR: It is shown that in general ART produces erroneous reconstructions, and an alternative iterative method is proposed which will give correct reconstructions under certain conditions.
Journal ArticleDOI

Reconstruction of Three Dimensional Structures from Electron Micrographs

TL;DR: General principles are formulated for the objective reconstruction of a three dimensional object from a set of electron microscope images and applied to the calculation of aThree dimensional density map of the tail of bacteriophage T4.
MonographDOI

Three-Dimensional Electron Microscopy of Macromolecular Assemblies

Joachim Frank
TL;DR: In this article, a three-dimensional reconstruction interpretation of 3D images of macromolecules is presented. Butts et al. reconstructed macromoles from micrographs of single macromolcules.
Journal ArticleDOI

Molecular structure determination by electron microscopy of unstained crystalline specimens.

TL;DR: The projected structures of two unstained periodic biological specimens, the purple membrane and catalase, have been determined by electron microscopy to resolutions of 7 A and 9 A, respectively.
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