Posted inAdvanced
Difference Between Optical and Electron Microscope
Optical vs. Electron Microscopes Many students are instantly plagued when placed in front of a…
Posted inAdvanced
SEM and TEM: what’s the difference?
Electron microscopes have emerged as a powerful tool for the characterization of a wide range…
Posted inAdvanced
Scanning Electron Microscopy (SEM)
What is Scanning Electron Microscopy (SEM) A typical SEM instrument, showing the electron column, sample…
Posted inAdvanced
Transmission Electron Microscope
A Transmission Electron Microscope (TEM) utilizes energetic electrons to provide morphologic, compositional and crystallographic information on samples.…
Posted inAdvanced
MICROSCOPE IMMERSION OIL EXPLAINED
WHY USE MICROSCOPE IMMERSION OIL? When light passes from a material of one refractive index…
Posted inAdvanced
Resolving Power
The resolving power of an objective lens is measured by its ability to differentiate two lines or…
Posted inAdvanced
Numerical Aperture and Resolution
The numerical aperture of a microscope objective is a measure of its ability to gather…
Posted inAdvanced
Laboratory diagnosis, treatment and prevention of Corynebacterium diphtheriae
Specimen Dacron swabs from the nose, throat, or other suspected lesions must be obtained before…
Posted inAdvanced
Direct Microscopic Counts
Studies involving the analysis of materials including food, water, milk, and, in some cases, air…
Posted inAdvanced
Phase-contrast Microscopy
Phase-contrast Microscopy Unstained living cells absorb practically no light. Poor light absorption results in extremely…