A high-resolution electron microscopic and energy-dispersive spectroscopic study on the molecular mechanism underpinning the natural preservation of 2300 Y.O. naturally-mummified human remains and the occurrence of small-sized [Zn][Al]Carbon spheres

2013 ◽  
Vol 40 (4) ◽  
pp. 1966-1974 ◽  
Author(s):  
Javiera Cervini-Silva ◽  
Eduardo Palacios ◽  
María de Lourdes Muñoz ◽  
Paz del Angel ◽  
Elizabeth Mejía-Pérez Campos ◽  
...  
Keyword(s):  
High Resolution ◽  
Spectroscopic Study ◽  
Molecular Mechanism ◽  
Human Remains ◽  
Energy Dispersive ◽  
Carbon Spheres ◽  
Electron Microscopic ◽  
Energy Dispersive Spectroscopic ◽  
Resolution Electron

The High Resolution Appearance of Biological Substrates

1969 ◽  
Vol 27 ◽  
pp. 416-417
Author(s):  
Glen B. Haydon
Keyword(s):  
High Resolution ◽  
Phase Image ◽  
Biological Structure ◽  
Electron Microscopic ◽  
Thin Sections ◽  
Resolution Electron ◽  
Discrete Structures ◽  
Large Phase ◽  
Biological Substrates ◽  
High Resolution Electron Micrographs

High resolution electron microscopic study of negatively stained macromolecules and thin sections of tissue embedded in a variety of media are difficult to interpret because of the superimposed phase image granularity. Although all of the information concerning the biological structure of interest may be present in a defocused electron micrograph, the high contrast of large phase image granules produced by the substrate makes it impossible to distinguish the phase ‘points’ from discrete structures of the same dimensions. Theory predicts the findings; however, it does not allow an appreciation of the actual appearance of the image under various conditions. Therefore, though perhaps trivial, training of the cheapest computer produced by mass labor has been undertaken in order to learn to appreciate the factors which affect the appearance of the background in high resolution electron micrographs.

Sign in / Sign up

Export Citation Format

Share Document