About Paul
Sales Consultant, Microscopes
Differential WBC Count
Posted June 7, 2013A differential white blood cell count or differential WBC count can be used to determine which infectious disease is present in an individual. In 1883 Elie Metchnikoff puplished the phagocytic theory of immunity. He postulated that large cells in the … Continue reading
Methicillin Resistant Staphylococcus Aureus
Posted May 24, 2013Methicillin resistant Staphylococcus aureus is a bacterial infection caused by S. aureus that is extremely resistant to some antibiotics. Recently an elementary school in Chicago was shut down because several students were diagnosed with MRSA. S. aureus normally lives on … Continue reading
Slide Agglutination Test
Posted May 10, 2013The slide agglutination test determines whether or not a specific protein exists within a species. Many manufacturers of reagents for slide agglutination tests utilize polystyrene latex particles as carriers for the antibody molecules. By conjugating reactive antibodies to these particles, … Continue reading
Serotypes
Posted April 12, 2013Organisms of different species differ not only in their morphology and physiology but also in the characteristics that make up their molecular structure resulting in different serotypes. The proteins, polysaccharides, nucleic acids, and lipids define the molcular structure of an … Continue reading
Shigella
Posted March 29, 2013The Shigella are divided into four species: Shigella dysenteriae, Shigella boydii, Shigella Flexeri, and Shigella sonnei. Like the Salmonella, the four species are divided into a number of different serotypes. Serotypes are strains that have similar biochemical characteristics but differ … Continue reading
Intestinal Pathogens
Posted March 15, 2013The intestinal pathogens of the most medical importance are the salmonella and shigella and pathogenic strains of Escherichia coli. They cause gastroenteritis, bacillary dysentery, foodborne illness, and diarrhea in humans. Right now the taxonomic differences of salmonella are being revised. … Continue reading
Nikon Eclipse E200
Posted March 1, 2013The Nikon Eclipse E200 compound microscope offers superior optics and high quality construction. This is one of the most widely used microscopes in veterinary clinics and doctor’s offices. Nikon’s Chromatic abberation-free infinity (CFI60) system provides an expandable platform for more … Continue reading
Bacterial Cell Wall
Posted February 15, 2013The bacterial cell wall contains a common and important component called peptidoglycan, which is only found in prokaryotes. Peptidoglycan is a polymer of alternating n-acetyl-glucosamine (NAG) and n-acetyl-muramic acid (NAM) which are linked by a covalent bond. Each NAM contains … Continue reading
Ultraviolet Light
Posted February 1, 2013Ultraviolet light also referred to as UV light can be used as a germicidal agent to sterilize surfaces where sensitive microbiology techniques are being performed. UV light is nonionizing short wavelength radiation that falls between 4nm and 400nm in the … Continue reading
Slime Mold
Posted January 18, 2013Slime molds are Eukaryotic, heterotrophic microorganisms that exist in cool, shady, and moist areas. They are often found on decaying logs, dead leaves, and other organic material. They ingest their food similar to an amoeba by phagocytosis. The vegetative cells … Continue reading