Characterization of surface structure. Ultra high vacuum electron microscopy.

Nano-Structure Roughening on Poly(Lactic Acid)PLA Substrates: Scanning Electron Microscopy (SEM) Surface Morphology Characterization

Scanningelectron microscopy (SEM) has been utilized  to examine  the morphology and topography alterations  in the surface of Poly(Lactic Acid)(PLA) fabrics due to UV/Ozoneirradiation. In the past decade, a growing attention in the usage of “Green Techniques” in industrial applications has been observed owing to many benefits such as low impurities and their relatively low cost to substitute th...

Comparison of Aerobic Sporadic Bacilli Structure with Electron Microscopy

I. The existence of differences and similarities in the sur- 4. face features not only of different organisms or groups but also within given species has been demonstrated by a variety of techniques. 2. The different reactions of various organisms to the Gram stain might well be taken as one piece of evidence, the use of the electron microscop and associated prepa­rative techniques (includi...

Ultra-high resolution scanning electron microscopy of biological materials.

In recent years, several ultrahigh resolution scanning electron microscopes (SEM) were successively developed. They were all equipped with a field emission electron gun and an objective lens with a short focal length, and showed a resolution better than 1 nm. With such instrument, not only intracellular structures but also virus, bacteriophages, and biological macromolecules were clearly observ...

Electron Microscopy of Fowl Pox Virus

Characterization of grain structure in nanocrystalline gadolinium by high-resolution transmission electron microscopy

A method is presented for recognition of nanograins in high-resolution transmission electron microscope (HRTEM) images of nanocrystalline materials. We suggest a numerical procedure, which is similar to the experimental dynamic hollow cone darkfield method in transmission electron microscopy and the annular dark-field method in scanning transmission electron microscopy. The numerical routine is...