Nobel Prizes Thirteen laureates were awarded a Nobel Prize in , for achievements that have conferred the greatest benefit to humankind. See them all presented here. Select the category or categories you would like to filter by Physics.
He lost himself in his work, spending most of his time behind closed doors in the lab. He died at home, suddenly, of coronary thrombosis, in , after suffering from stomach upset for weeks. Tan SY, Tatsumara Y. Alexander Fleming : discoverer of penicillin. Singapore Med J. Alexander Fleming Discovers Penicillin. September 7, Karen Berger, PharmD. Pharmacy Times , August , Volume 88, Issue 8. Although these two effects occur under quite different conditions, Fleming probably forgot which observation came first, for in the months subsequent to the original observation he conducted many experiments while varying conditions systematically.
He discovered that the antibacterial substance was not produced by all molds, only by certain strains of Penicillium , namely, Penicillium notatum. He investigated its effect on many microbes, curiously omitting the familiar spirochete that causes syphilis which Salvarsan controlled but did not eliminate. He tested its toxicity on a laboratory mouse and a rabbit. Forever after, it has been a puzzle why he did not inject these or other laboratory animals with staphylococcus or other disease-causing bacteria before injecting them with the fluid containing penicillin.
Perhaps the explanation lay in his belief that cures come from within the body itself, rather than from an external agent. So he was not looking for a curative agent but rather focused on his new find as a topical antiseptic.
In later years he claimed that the difficulties he had experienced in isolating and stabilizing penicillin, let alone the problems of producing sufficient quantities for clinical trials, had prevented him from realizing the full fruits of his research.
In terms of his personal life, Fleming was known as modest, patient, quiet, shy, and unemotional. He avoided attention and was even sometimes painfully silent around close friends and even his wife, Sarah Marion McElroy, a nurse. Fleming and his wife had a son, Robert, who became a general practitioner. When she passed away after 34 years of marriage, Fleming had a very difficult time. He lost himself in his work, spending most of his time behind closed doors in the lab. In , Fleming married Dr.
Amalia Koutsouri-Vourekas in a Greek church in London. Tan SY, Tatsumara Y. Alexander Fleming — : discoverer of penicillin.
0コメント