A new approach to characterize the nanostructure of activated carbons from mathematical morphology applied to high resolution transmission electron microscopy images

Carbon ◽  
2013 ◽  
Vol 52 ◽  
pp. 239-258 ◽  
Author(s):  
Pascaline Pré ◽  
Guillaume Huchet ◽  
Dominique Jeulin ◽  
Jean-Noël Rouzaud ◽  
Mohamed Sennour ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Mathematical Morphology ◽  
Activated Carbons ◽  
New Approach ◽  
Transmission Electron ◽  
Microscopy Images

Characterization of the ZnSe/GaAs Interface Layer by Tem and Spectroscopic Ellipsometry

1992 ◽  
Vol 280 ◽  
Author(s):  
R. Dahmani ◽  
L. Salamanca-Riba ◽  
D. P. Beesabathina ◽  
N. V. Nguyen ◽  
D. Chandler-Horowitz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Spectroscopic Ellipsometry ◽  
Interface Layer ◽  
Transmission Electron ◽  
Three Phase ◽  
Znse Thin Films ◽  
Microscopy Images

ABSTRACTThe interface between ZnSe thin films and GaAs substrates is characterized by High Resolution Transmission Electron Microscopy and room temperature Spectroscopic Ellipsometry. The films were grown on (001) GaAs by Molecular Beam Epitaxy. A three-phase model is used in the reduction of the ellipsometric data, from which the presence of a transition layer of Ga2Se3, with a thickness of less than 1 nm, is confirmed. These results corroborate the high resolution transmission electron microscopy images obtained from the same samples.

scholarly journals Development of an Algorithm for Automatic Image Detection of Biological Particles in Transmission Electron Microscopy Images

2012 ◽  
Vol 18 (S5) ◽  
pp. 3-4 ◽  
Author(s):  
M. C. Proença ◽  
J. F. Moura Nunes ◽  
A. P. Alves de Matos
Keyword(s):  
Electron Microscopy ◽  
Image Processing ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
3D Reconstruction ◽  
Image Detection ◽  
Virus Particles ◽  
Transmission Electron ◽  
Automatic Image Processing ◽  
Microscopy Images

Automatic image processing of transmission electron microscopy images (TEM) is a utopia often pursued, considering the thousands of images necessary to ensure a high resolution 3D reconstruction of virus particles or other macromolecular machines.

scholarly journals Fine structural detection of calcium ions by photoconversion

2016 ◽  
Author(s):  
V. Poletto ◽  
V. Galimberti ◽  
G. Guerra ◽  
V. Rosti ◽  
F. Moccia ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Calcium Ions ◽  
High Spatial Resolution ◽  
New Approach ◽  
Photo Oxidation ◽  
Transmission Electron ◽  
Direct Irradiation ◽  
Calcium Detection

We propose a tool for a rapid high-resolution detection of calcium ions which can be used in parallel with other techniques. We have applied a new approach by  photo-oxidation of diaminobenzidine in presence of the emission of an excited fluorochrome specific for calcium detection. This method combines the selectivity of available fluorophores to the high spatial resolution offered by transmission electron microscopy to detect even fluorescing molecules even when present in low amounts in membrane-bounded organelles. We show in this paper that Mag-Fura 2 photoconversion via diaminobenzidine oxidation is an efficient way for localizing Ca2+ ions at EM level, is easily carried out and reproducible, and can be obtained on a good amount of cells, since the exposition in our conditions is not limited to the direct irradiation of the sample via an objective but obtained with a germicide lamp. The end product is sufficiently electron dense to be detected clearly when present in sufficient amount within a membrane boundary.

REW– exit-wave reconstruction and alignments for focus-variation high-resolution transmission electron microscopy images

2007 ◽  
Vol 40 (3) ◽  
pp. 614-614 ◽  
Author(s):  
F. Lin ◽  
Q. Chen ◽  
L.-M. Peng
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Maximum Likelihood Method ◽  
Transmission Electron Microscopy Image ◽  
Likelihood Method ◽  
Transmission Electron ◽  
Microscopy Image ◽  
Focus Variation ◽  
Microscopy Images

A Windows-based computer program has been developed for exit-wave reconstruction and experimental high-resolution transmission electron microscopy image alignment. While the exit-wave reconstruction is performed mainly using the maximum-likelihood method, image alignments may be carried out using several algorithms, including the time-consuming but robust genetic algorithm.

A method to determine fault vectors in 4H-SiC from stacking sequences observed on high resolution transmission electron microscopy images

2014 ◽  
Vol 116 (10) ◽  
pp. 104905 ◽  
Author(s):  
Fangzhen Wu ◽  
Huanhuan Wang ◽  
Balaji Raghothamachar ◽  
Michael Dudley ◽  
Stephan G. Mueller ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Transmission Electron ◽  
Microscopy Images
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