25918eb7 4dcf 42a2 8f5e 49722548c853

Chemical Changes of Antibiotics in History

  • Alexander Fleming

    -he conducted one of the most important contributions to the field of antibiotics.
    -in an experiment he conducted he found that a strain of mold inhibited the growth of bacteria on an agar plate
    -this led to the development of the first modern antibiotic,penicillin
  • Selman Waksman

    -although fleming’s experiment was observed it wasn’t reliable
    -further improvements and discoveries were done by Waksman and he began working on potential antibiotic products from bacterial soil
    -he discovered new antibiotics such as neomycin through streptomycin which is also the first effective antibiotic against tuberculosis
  • Outbreaks

    -after penicillin was introduced to European Markets, major outbreaks occurred and this was the first observation of ampicillin resistant strains in humans
  • “Last Resort”

    -scientists found new class of B-lactam antibiotics, called carbapenemes which were able to knoll bscteruebthat were resistant to other bacteria
  • Today

    -today instead of the past vs the present, antibiotics have become much more ineffective since in the past
    -antibiotics have become resistant for treatment under the bacteria made into it
    -new methods have developed to grow bacteria from 50% bacteria than from 1% in the past