MAR 09, 2019 12:10 PM PST

How Penicillin Works

WRITTEN BY: Carmen Leitch

In 1928, Alexander Fleming found a contaminated Petri dish. Staphylococcus bacteria had been growing on the dish, and the lid had been left off. A mold called Penicillium notatum had also started growing on the dish; around it was a clear ring where no bacteria could grow. Thus began humanity's use of antibiotics.

There are now several drugs in penicillin's class. They work by disrupting the integrity of the bacterial cell wall, which is required for the bacterium to live. Molecules called peptidoglycans are an integral part of that wall, and penicillin stops peptidoglycans from linking together. Learn more about penicillins from the video.

Source: American Chemical Society

About the Author
BS
Experienced research scientist and technical expert with authorships on over 30 peer-reviewed publications, traveler to over 70 countries, published photographer and internationally-exhibited painter, volunteer trained in disaster-response, CPR and DV counseling.
You May Also Like
JAN 17, 2021
Space & Astronomy
Astronomers Discover Planet with 3 Suns
JAN 17, 2021
Astronomers Discover Planet with 3 Suns
Having just one star in our solar system makes us an outlier in our galaxy. However, while most solar systems in the Mil ...
MAY 21, 2021
Space & Astronomy
Alien Radioactive Element Discovered on Earth for First Time
MAY 21, 2021
Alien Radioactive Element Discovered on Earth for First Time
  Researchers from Australian National University have discovered the first ever extraterrestrial radioactive isoto ...
MAY 23, 2021
Space & Astronomy
Why Do Some Stars Vanish from Space?
MAY 23, 2021
Why Do Some Stars Vanish from Space?
Current theories suggest that stars undergo changes on timescales of millions or billions of years, and that their end i ...
JUN 17, 2021
Space & Astronomy
Chinese Astronauts Will Live on New Space Station for 3 Months
JUN 17, 2021
Chinese Astronauts Will Live on New Space Station for 3 Months
Astronauts aboard China’s first manned spacecraft in almost five years have reached the new Tiangong space station ...
JUL 09, 2021
Cell & Molecular Biology
Wearable Tech for...Plants?
JUL 09, 2021
Wearable Tech for...Plants?
Researchers have developed a "wearable" patch to detect the gaseous substances plants emit when diseased or stressed,
OCT 15, 2021
Health & Medicine
The Art of the Smize: Study Shows Eyes are More Active in Smiling Behind a Mask
OCT 15, 2021
The Art of the Smize: Study Shows Eyes are More Active in Smiling Behind a Mask
Mask wearing has become a part of our everyday lives. Something that we have all adapted to because of this is expressin ...
Loading Comments...