scholarly journals High-resolution imaging of zeolite with aberration-corrected transmission electron microscopy

AIP Advances ◽  
2013 ◽  
Vol 3 (4) ◽  
pp. 042113 ◽  
Author(s):  
Kaname Yoshida ◽  
Yukichi Sasaki ◽  
Hiroki Kurata
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
High Resolution Imaging ◽  
Transmission Electron ◽  
Resolution Imaging ◽  
Aberration Corrected

High-Resolution Imaging of Coga/GaAs and Eras/GaAs Interfaces

1989 ◽  
Vol 159 ◽  
Author(s):  
Jane G. Zhu ◽  
Stuart McKeman ◽  
Chris J. Palmstrøm ◽  
C. Barry Carter
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Atomic Scale ◽  
High Resolution Imaging ◽  
Transmission Electron ◽  
Resolution Imaging ◽  
Interface Structures

ABSTRACTCoGa/GaAs and ErAs/GaAs grown by molecular-beam epitaxy have been studied using high-resolution transmission electron microscopy (HRTEM). The epitactic interfaces have been shown to be abrupt on the atomic scale. Computer simulations of the HRTEM images have been obtained for different interface structures under various specimen and image conditions. Practical problems in the comparison between the simulated and experimental images are discussed.

scholarly journals High-Resolution Visualization of Pseudomonas aeruginosa PAO1 Biofilms by Freeze-Substitution Transmission Electron Microscopy

2005 ◽  
Vol 187 (22) ◽  
pp. 7619-7630 ◽  
Author(s):  
Ryan C. Hunter ◽  
Terry J. Beveridge
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Structural Complexity ◽  
Freeze Substitution ◽  
High Resolution Imaging ◽  
Natural Structure ◽  
Transmission Electron ◽  
Resolution Imaging ◽  
Exopolymeric Substance

ABSTRACT High-pressure freeze-substitution and transmission electron microscopy have been used for high-resolution imaging of the natural structure of a gram-negative biofilm. Unlike more conventional embedding techniques, this method confirms many of the observations seen by confocal microscopy but with finer structural detail. It further reveals that there is a structural complexity to biofilms at both the cellular and extracellular matrix levels that has not been seen before. Different domains of healthy and lysed cells exist randomly dispersed within a single biofilm as well as different structural organizations of exopolymers. Particulate matter is suspended within this network of fibers and appears to be an integral part of the exopolymeric substance (EPS). O-side chains extending from the outer membrane are integrated into EPS polymers so as to form a continuum. Together, the results support the concept of physical microenvironments within biofilms and show a complexity that was hitherto unknown.

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