- OXOID Microbiology Antibiotic Discs are small, circular pieces of filter paper that have been impregnated with an antibiotic solution.
- They are used to determine the susceptibility of bacteria to different antibiotics.
- The discs are placed on an agar plate that has been seeded with the bacteria to be tested.
- The antibiotic diffuses out of the disc and creates a concentration gradient around the disc.
- The bacteria will only grow in areas where the antibiotic concentration is below the minimum inhibitory concentration (MIC) for that bacteria.
- The size of the zone of inhibition around the disc is used to determine the MIC of the antibiotic for that bacteria.
- OXOID Microbiology Antibiotic Discs are available for a variety of antibiotics, including penicillin, streptomycin, and gentamicin.
- They are used in a variety of settings, including clinical laboratories, research laboratories, and industrial laboratories.
Here are some of the benefits of using OXOID Microbiology Antibiotic Discs:
- They are easy to use and can be used by laboratories of all sizes.
- They are relatively inexpensive.
- They are accurate and reproducible.
- They are a valuable tool for determining the susceptibility of bacteria to antibiotics.
If you are looking for a reliable and easy-to-use way to determine the susceptibility of bacteria to antibiotics, then OXOID Microbiology Antibiotic Discs are a good option to consider.
Here are some additional details about OXOID Microbiology Antibiotic Discs:
- The discs are made of filter paper that has been impregnated with an antibiotic solution.
- The antibiotic solution is typically made by dissolving the antibiotic in a solvent, such as water or ethanol.
- The discs are then dried and packaged.
- The discs are available in a variety of sizes, depending on the antibiotic and the concentration of the antibiotic solution.
- The discs are typically stored at room temperature.
To use the discs, you will need to:
- Prepare an agar plate by pouring the agar into a petri dish and allowing it to solidify.
- Seed the agar plate with the bacteria to be tested.
- Place the antibiotic discs on the agar plate.
- Incubate the plate at the appropriate temperature for the antibiotic being tested.
- After the incubation period, measure the diameter of the zone of inhibition around each disc