The concept of Blood grouping was first discovered by Karl Landsteiner in 1901, who was an Austrian-American immunologist and pathologist. He received Nobel Prize in Physiology or Medicine in 1930 for this discovery.
What is Methyl Red (MR) Test? Objectives of Methyl Red (MR) Test Advertisements The objectives of the Methyl Red (MR) Test can be outlined as follows: Principle of Methyl Red test The principle of the Methyl Red (MR) test is based on assessing the ability of an organism to produce and maintain stable acid end products … Read more
What is pH Meter? Definition of pH Meter Advertisements A pH meter is a scientific instrument used to measure the acidity or alkalinity of aqueous solutions by determining the hydrogen-ion activity, expressed as pH. It operates based on the difference in electrical potential between a pH electrode and a reference electrode. What is pH? In … Read more
What is the latex agglutination test? Types of Latex Agglutination Advertisements The latex agglutination test can be categorized into two main types based on the processes of detection: Latex Agglutination Test (LAT) for Antibody Detection and Latex Agglutination Test (LAT) for Antigen Detection. These two types of latex agglutination tests provide valuable diagnostic information in … Read more
Counter current immunoelectrophoresis is a modification of immunoelectrophoresis in which antigen and antibody migrate towards opposite directions and form a visible white precipitate in the area between the wells.
Advertisements A hot air oven is a laboratory appliance that is used to dry, sterilize, or heat materials. It works by circulating hot air inside the oven chamber to evenly distribute heat to the materials being processed. Hot air ovens are often used in a variety of settings, including research laboratories, industrial settings, and educational … Read more
What is Triple Beam Balance? Definition of Triple Beam Balance Advertisements A triple beam balance is a precise measuring instrument used to determine the mass of an object. It consists of three beams, each with different sizes and scale readings, allowing for precise measurements ranging from 0.1 grams to 600 grams. Parts of Triple Beam … Read more
Immunoelectrophoresis is a powerful qualitative technique for the characterization of an antibody.
Southern Blotting is a molecular biology technique used for the identification of a specific DNA sequence in a collected DNA sample.
What is the Litmus Milk Test? Litmus Milk Medium is a liquid medium suggested for use in qualitative tests for determining the activity of bacteria on milk and maintaining lactic acid bacteria. The Litmus Milk Test requires a litmus milk medium, which is a liquid medium that differentiates bacteria based on numerous metabolic events in … Read more
Test Name Acetamide utilization Test Purpose Differentiate microorganisms according to their capacity to utilise acetamide as their only carbon source. Microorganisms Tested Isolated colonies of Gram-negative, non-glucose-fermenting rods that emit a luminous pigment and are suggestive of P. aeruginosa. Result Positive: The slant shows growth, and its colour changes from green to intense blue.Negative: There … Read more
Cetrimide Selective Agar is a solid medium that is recommended for use in qualitative procedures for selective isolation and presumed identification of Pseudomonas aeruginosa and other nonfermenting, gram-negative bacilli.
Leucine aminopeptidase (LAP) is an enzyme used to distinguish catalase-negative, gram-positive cocci of Aerococcus and Leuconostoc (LAP test negative) from other organisms in the group, such as Streptococcus, Enterococcus, Lactococcus, and Pediococcus (almost always positive).
The pancreas secretes an enzyme called lipase that aids in the digestion of fatty foods. High levels of lipase in the blood may indicate pancreatitis, a disorder characterised by the inflammation and enlargement of the pancreas. Other pancreatic difficulties, certain drugs, and diseases and disorders include kidney failure, cancer, and gallbladder and oesophagus troubles can … Read more
The Widal test is an agglutination test that determines any antibodies present in the patient’s serum that are generated against the causal agents of the enteric febrile illness (Salmonella Typhi, and Salmonella paratyphi B, A as well as C).
It is a type of biochemical test which is used to distinguish reducing sugars from non-reducing sugars. This biochemical test is also known as the silver mirror test based on the end product of this test. This test was also used to differentiate between aldehydes and ketones through routine qualitative organic analysis.
The oxidase test is a biochemical reaction that assays for the presence of cytochrome oxidase, an enzyme sometimes called indophenol oxidase. In the presence of an organism that contains the cytochrome oxidase enzyme, the reduced colorless reagent becomes an oxidized colored product .
It is a type of biochemical test, which is used to differentiate Staphylococcus aureus from coagulase-negative staphylococci. S.aureus produces two forms of coagulase (i.e., bound coagulase and free coagulase).
Rocket Immunoelectrophoresis (RIEP) also known as electro-immuno diffusion is a simple, quick and reproducible method for determining the concentration of antigen (Ag) in an unknown sample.
Gerhardt’s test is a type of laboratory test which is performed for the qualitative detection of ketone bodies in urine.
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