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How did Alexander Fleming find out that penicillin was safe for humans to use?
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What did Alexander Fleming find?
The discovery of penicillin is attributed to Scottish scientist and Nobel laureate Alexander Fleming in 1928.He showed that, if Penicillium notatum were grown in the appropriate substrate, it would exude a substance with antibiotic properties, which he dubbed PENICILLIN.
When did Alexander Fleming find penicellin?
1928
How did Alexander Flemming find penicillin?
The mold was growing in one of his experimental bacterial cultures and killing them, ruining the experiment. Others might have thrown it out, he determined what the mold was making that killed bacteria.
Did Alexander Fleming find it hard to create penicillin?
Because it was excreted too quickly by the human body, which reduced its ability to kill the bacteria.
Who is credited with the invention of penicillin?
Discovery of penicillin was one of the most dramatic events in the history of Pharmacology. Sir Alexander Flaming was working in his laboratory in 1928. A stale piece of bread was there in his lab. He observed that there were colonies of bacteria on the same. He observed that around the colonies of some fungi, there was the clear zones. He concluded that the fungi are producing some substance, which is inhibiting the growth of the bacteria. There were lot of casualties during the second world war. There was desperate need to find the drug to treat the infected wounds. Dr. Florry and Chain decided to treat a critical patient with penicillin. They did not know the dose. A round figure was selected. 5000 I U. Now you know that this is very less dose. Thanks God for it worked! The patient stared to recover. But died, when the stock of penicillin was exhausted. The young doctor used to go to hospital, in London, on his bicycle to bring the urine of the patient to recollect the penicillin. I have been wondering from last four decades about how he collected penicillin from the urine! The ultimate result was invention of the ultimate antibiotic, penicillin.
What did Alexander Fleming do wrong?
Well there were two things I found when researching him for a debate. 1. In 1949 his wife died and only four years later he remarried 2. He tested penicillin on animals I hope this helps, and if I find more I will be sure to respond :)
What is the name of Alexander Fleming's son?
I read in a book called 'Alexander and the Story of Pencillin' that Fleming's son is named Robert, though I have been unable to find any other information on the internet with that name.
Did Alexander Fleming's father save Winston churchill?
This is an urban legend. You will find it listed as such in several of the fact-checking sites, including Snopes.com. You will also find the true story of who paid for Alec Fleming's education (it was an uncle) in the wikipedia article on Alexander Fleming.
Who discovered pennicillin?
Bacteriologist Alexander Fleming discovered Penicillin in 1928. The concept of bacteria had been around since Antonie van Leeuwenhoek first described it in 1683, it wasn't until the late nineteenth century that Louis Pasteur confirmed that bacteria caused diseases. However, though they had this knowledge, no one had yet been able to find a chemical that would kill harmful bacteria but also not harm the human body.
Why did Alexander fleming's discovery of penicillin in 1928 have such a limited on medical treatment at the time?
Two reasons: 1) Not even Fleming believed penicillin could kill bacteria inside the human body. From 1927 to 1931 he studied this possibility, and concluded it would not. Not until the 1940s did researchers find that it was a "miracle drug" in its ability to do so. 2) Manufacturing penicillin, in quantities pure, strong, and large enough to be of medical use, was difficult and expensive -- no drug company wanted to expend the effort to find a way to do so for a drug that was still unproven. More specifically, no company wanted to expend that effort when Fleming refused to patent the drug. If a drug company did expend the resources and found a way to do so, any other company could then use the same process to manufacture penicillin -- meaning the first company to do so would spend the money and every other company would make the profit.
What was one of Alexander Fleming's experiments?
In 1906 the young physician Alexander Fleming became a research assistant at St Mary's Hospital in London. Fleming went to France during the First World War to treat wounded soldiers and could see for himself that there was no effective way of treating many infections. Back at St Mary's after the war, Fleming was determined to find a better way of killing germs. In 1928 he was studying staphylococci bacteria (that can, among other things, infect wounds). By pure luck, he noticed that on a dish containing agar on which he had been growing germs, near some mould, the germs were less common. He grew more of the mould, naming it penicillin from its Latin name Penicillium.
What were Alexander Flemings religious views?
Alexander Fleming was a scientist, born near Darvel in Ayrshire, Scotland, on 6 August 1881. He was educated at St Mary's Hospital medical school in London until World War I. Whilst here, he gained a great deal of experience in a battlefield hospital in France. He observed firsthand the effects of infections in dying soldiers, and this motivated him to increase his efforts to find an effective means of fighting infection. Fleming is known for his discovery of the antibiotic substance penicillin from the fungus Penicillium notatum in 1928, for which he shared the Nobel Prize in Physiology or Medicine in 1945. What is more remarkable was how this discovery came about quite by accident. Fleming was an untidy worker, often leaving his equipment uncleaned. When he went away for a holiday during 1828, he left a clutter of plates growing various bacteria lying about his desk. After he returned, whilst working on an influenza virus he noticed that mould had grown on a staphylococcus culture plate. Not only that, the mould had created a bacteria-free circle around itself. Working on an hypothesis, he experimented further to determine that even a weaker-strength mould culture prevented growth of staphylococci. Thus, Fleming initiated the development and practice of antibiotic therapy for infectious diseases.
