Lattice images formed by plasmon energy-loss electrons in an energy-filtered transmission electron microscope are compared for different experimental parameters. The image resolution is primarily determined by chromatic aberration which is controlled by the width of the energy selection window. With an energy slit 3 eV in width, the plasmon loss electron image shows the same resolution and cont...

The high sensitivity of electron energy-loss spectroscopy (EELS) for detecting light elements at the nanoscale in the analytical electron microscope makes it a valuable technique for applications to biological materials [1]. In particular, EELS provides quantitative information about elemental distributions within subcellular compartments, and the number of specific atoms that are bound to indi...

Connections between chromosomes have been observed and described by numerous investigators (1-10). They have been seen with the light microscope (I, 2, 6, 7, 10), the transmission electron microscope (3-5, 8), and the scanning electron microscope (9). In addition, surface specializations (side arms, loops, whiskers) have been observed on chromosomes by a number of researchers who have employed ...

The resolution of a scanning transmission electron microscope remains 100 times worse than its theoretical limit owing to the spherical aberration of objective lens. Ikuta proposed a system to generate an aberration-free amplitude image and phase image using multiple small detectors with real-time signal processing. This study shows the performance optimization results of its signal processing ...

In the past 15 years, the advent of aberration correction technology in electron microscopy has enabled materials analysis on the atomic scale. This is made possible by precise arrangements of multipole electrodes and magnetic solenoids to compensate the aberrations inherent to any focusing element of an electron microscope. Here, we describe an alternative method to correct for the spherical a...

A plastic bag method was developed to observe air-sensitive samples on microstructure and phase distribution without exposure to air during the holder transfer process into the transmission electron microscope (TEM). As an example, a type of lithium aluminum hydride (Li(3)AlH(6)) was observed in the TEM to demonstrate the effectiveness of this method. Results show that the plastic bag method is...

The Scanning Confocal Electron Microscope, is an instrument which permits the observation and characterization of sub-surface structures of thick, optically opaque materials at nanometer level resolutions. The instrument merges the capabilities of the scanning, transmission and x-ray microscopes, and achieves unprecedented resolutions in optically dense materials, by implementing the technology...

Abbreviations: BOD: biochemical oxygen demand COD: chemical oxygen demand OD: optical density OW: optimized wastewater PNSB: purple non sulphur photosynthetic bacteria ROW:raw optimized wastewater RW: raw wastewater SCP: single cell protein SEM: scanning electron microscope SOW: sterile optimized wastewater SW: sterile wastewater TEM: transmission electron microscope TKN: total kjeldahl nitroge...

In this work, we present systematic studies on how an illuminating electron beam which ionizes molecular gas species can influence the mechanism of carbon nanotube oxidation in an environmental transmission electron microscope (ETEM). We found that preferential attack of the nanotube tips is much more prevalent than for oxidation in a molecular gas environment. We establish the cumulative elect...