Chemical disinfectants
Microbiology for Beginners

Disinfection: Methods and Uses

Last updated on June 21st, 2021Disinfection is a process whereby pathogenic organisms, but not necessarily all microorganisms or spores, are destroyed. Disinfection may be accomplished by physical or chemical means. A number of factors influence […]


Preparation of Gram stain Reagents

Last updated on June 1st, 2021Gram staining requires the use of different chemical reagents which can be purchased in ready-to-use forms from commercial suppliers or can be prepared at the laboratory by mixing different chemicals […]


SEM vs. TEM Electron Microscopy

Last updated on June 11th, 2021The advent of Electron Microscopy in 1932 opens the door to visualizing small subcellular structure and viruses which were beyond the scope of light microscopy which can’t resolve objects separated […]