introduction: today, have been approved scientifically relationship between presence of asbestos fibers in the human respiratory area and malignant diseases such as lung advanced fibrosis (asbestosis), gastrointestinal, lung and laryngeal cancers. the aim of this study was the determination of asbestos fibers concentration in yazd city’s air in the summer of 2015. methods: this is a descriptive...

The STEM (scanning transmission electron microscope) is useful device combining features of scanning and transmission electron microscopes. The sample in form of ultrathin section is scanned by the electron probe and the transmitted electrons are detected. Except the dedicated STEMs [1] this mode can exist as options in both TEM and SEM [2]. The STEM based on the SEM equipped by a transmission ...

“Nanomischief” is reviewed in hopes of helping our fellow “nanomachinists.” Scanning electron microscopy (SEM) and optical microscope images are shown, along with a short narrative of the problems encountered and their solutions.

Once trained, the human brain is an excellent image processor; to replicate that skill for scanning electron microscope (SEM) image assessment demands considerable computing power. We have evaluated parallel computing for this purpose and developed an image processing tool for the automatic optimisation of electron gun alignment. The instrumental setup for this work was a Carl Zeiss 1430VP SEM ...

Electron microscopes have been widely used to investigate cell structures under high resolution. A scanning electron microscope (SEM) provides tridimensional images of a cell surface, while a transmission electron microscope (TEM) is commonly employed to observe the internal structure changes of host cells after bacterial adherence and invasion. The SEM and TEM can reveal bacterial location, bi...

zno and zno:mn nanocrystals synthesized via reverse micelle method. the size, band gap, urbach energy, optical constants and penetration depth of nanocrystals were calculated by uv-vis spectroscopy data. the surface morphology was studied with the use of scanning electron microscope (sem). moreover the samples exposed to gama ray source of 60co and their thermoluminescence properties were also ...

a simple method has been employed to synthesize copper and copper oxide nanoparticles from copper (ii) succinate precursor by thermal decomposition method using oleylamine as a capping agent. the particles synthesized with oleylamine and triphenylphosphine were well dispersed nanoparticles obtained from x-ray diffraction (xrd). the synthesized copper nanoparticles were characterized by uv-visib...

We report nanomanipulation and nanoassembly of carbon nanotubes (CNTs) through nanorobotic manipulation inside electron microscopes. A hybrid nanorobotic manipulation system, which is integrated with a nanorobotic manipulator inside a transmission electron microscope (TEM) and nanorobotic manipulators inside a scanning electron microscope (SEM), is used. The elasticity of a multiwalled CNT (MWN...