What is Kirby Bauer Disk Diffusion test? The Kirby-Bauer disk diffusion test is a laboratory method used to determine the effectiveness of antibiotics against bacterial strains. The test is named after its inventors, Drs. Paul Kirby and Robert Bauer, who developed it in the 1960s. In the Kirby-Bauer test, a bacterial culture is spread evenly
Antimicrobial Susceptibility Testing (AST) Techniques of Antimicrobial Susceptibility test Antimicrobial susceptibility tests in the laboratory can be done by using: Dilution susceptibility tests Disc diffusion susceptibility tests Kirby-Bauer NCCLS modified disc diffusion technique Stokes disc diffusion technique Disadvantages of antimicrobial susceptibility tests Susceptibility tests determine the antimicrobial effect against bacteria in conditions of laboratory (in
The process of collecting bacteria from the air for analysis involves several techniques, one of the simplest being the utilization of open Petri dishes filled with a growth medium. These dishes are exposed to the air, allowing airborne bacteria to settle and subsequently grow on the medium, which can then be examined to identify the
Exploring the microscopic world within soil requires precise techniques for the effective sampling of microorganisms, such as bacteria. These organisms play crucial roles in various ecological processes, including nutrient cycling, and understanding their presence and diversity is vital for both scientific research and environmental monitoring. Two widely recognized methods facilitate the direct observation of these
Sampling of bacteria from water requires sterile collection, aseptic handling, correct preservation, and prompt transport for microbiological analysis.
What is Satellitism Test? Definition of Satellitism Test The Satellitism Test is a biochemical assay used to differentiate Haemophilus influenzae from other Haemophilus species based on their growth factor requirements. In this test, H. influenzae grows proximally to Staphylococcus aureus colonies on blood agar due to the latter’s production of necessary growth factors, a phenomenon
Alcohol fermentation, also known as ethanol fermentation, is a sophisticated biotechnological procedure wherein specific sugars, namely glucose, fructose, and sucrose, undergo a transformation into ethyl alcohol (ethanol) and carbon dioxide. This transformation is facilitated by certain microorganisms, predominantly the yeast species Saccharomyces cerevisiae, as well as specific bacterial strains. Central to the realm of biotechnology,
What is In Vitro Fertilization (IVF)? Why IVF is done? IVF is performed for various reasons related to infertility and certain health conditions. Here are some common reasons why IVF may be done: Additionally, for individuals who do not have a functional uterus or face significant health risks during pregnancy, IVF with a gestational carrier
What is Amniocentesis? (Amniotic Fluid Test) Sample for Amniotic fluid Examination (Amniocentesis) The purpose of the test Amniocentesis, the examination of amniotic fluid, serves various purposes in prenatal diagnosis and assessment. The test provides valuable information about the fetus, allowing healthcare providers to make informed decisions regarding the health and well-being of both the mother
Agarose gel electrophoresis (AGE) is an approach that is used to distinguish DNA from RNA based on their molecular sizes.
The separation of RNA and DNA molecules is accomplished when nucleic acids that are negatively charged travel through an agarose structure under an influence of an electrical fields (electrophoresis).
