Plastic model of an antibiotic sensitivity disc test, Europe, 1971-1980

Made:
1971-1980 in Europe
maker:
Unknown
Plastic mock-ups' of a microtitre plate complete with pseudo colonies of bacteria, and an agar plate, showing

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Plastic mock-ups' of a microtitre plate complete with pseudo colonies of bacteria, and an agar plate, showing
Science Museum Group
The Board of Trustees of the Science Museum

Plastic "mock-ups" of a microtitre plate complete with pseudo colonies of bacteria, and an agar plate, showing penicillin "inhibition zones", c. 1976

How well antibiotics perform against particular bacteria can be gauged using a disc test. The brown layer in the Petri dish model represents the jelly-like agar containing a bacterium. Samples of antibiotics are placed in the agar and labelled. The space around the antibiotics labelled CX5 and MT10 indicates that the organism cannot grow. These antibiotics could be used to treat infections caused by the organism. The antibiotic labelled PG4, penicillin, allows the bacteria to grow, so will be useless against that particular strain of the organism. Many bacteria are now becoming resistant to antibiotics, which is why tests like this are important.

Details

Category:
Biotechnology
Object Number:
1977-288
type:
model
taxonomy:
  • visual and verbal communication
credit:
Beecham Pharmaceuticals. Chemotherapeutic