Automated Cell Counting based on Optical technology (Optical principle)
Optical principle: Automated systems are now based on flow-through (also called flow cytometry) opticaltechnologies that identify cells on the basis of light scatter properties broadly ...
Automated Cell Counting based on Impedance technology (Coulter principle)
Impedance technology. This technology was originally known as the Coulter principle. There are several variations and adaptations to the impedance principle in use today from a variety ...
Hematopoiesis (The Formation of Blood Cells)
All blood cells begin as undifferentiated stem cells capable of reproducing themselves. Generations of cells eventually differentiate into cell lines that will mature to produce erythrocytes, ...
Urease Test
Urease test principle
Many organisms especially those that infect the urinary tract, have a urease enzyme which is able to split urea in the presence of water to release ammonia and ...
Microscopic Morphologic Features of the Yeast Forms of Various Dimorphic Fungi
The yeast form of Blastomyces dermatitidis is a large, 10-15 µm in diameter, thick-walled yeast cell that characteristically produces a single bud attached by a broad base.
Coccidioides ...
GasPak System (The Anaerobic jar)
Agar plates are inoculated and placed in the jar. Water is added to the GasPak generator envelope, causing the evolution of H2 and CO2. he hydrogen reacts with oxygen on the surface ...
Lactophenol Cotton Blue Stain
Lactophenol Cotton Blue Stain is recommended for mounting and staining yeast and molds. Lactophenol Cotton Blue Stain is formulated with lactophenol, which serves as a mounting fluid, ...
Microscopic Morphologic Features of Yeast
The cells shown in Image below are arthroconidia, some showing buds coming off of adjacent corners. This feature is diagnostic for Trichosporon species.
The yeast cells of Cryptococcus ...
Fluorescence and Fluorochromes staining techniques overview
Fluorochromes are certain dyes that give off light when excited, and this is called Fluorescence and the color of light depends on the dye and the filters used with the fluorescent ...
Systemic lupus erythematosus (SLE) Erythema
SLE bright red and sharply defined erythema is seen with slight edema and minimal scaling in a “butterfly pattern” on the face. Note also that the patient is female and ...
Kayser Fleischer ring in Wilson’s Disease
Kayser Fleischer ring in Wilson’s Disease is corneal ring with golden brown color and contrasted clearly against a gray-blue iris. Note that the darkness of the ring increases ...
Neomycin Blood Agar
Neomycin Blood Agar based on Columbia Agar enriched with 7% Horse Blood this formulation has been modified to include Neomycin, which will inhibit most gram-positive and gram-negative ...
