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Antonie Philips van Leeuwenhoek [note 2] FRS (/ ˈ ɑː n t ə n i v ɑː n ˈ l eɪ v ən h uː k,-h ʊ k / AHN-tə-nee vahn LAY-vən-hook, -huuk; Dutch: [ˈɑntoːni vɑn ˈleːu.ə(n)ˌɦuk] ⓘ; 24 October 1632 – 26 August 1723) was a Dutch microbiologist and microscopist in the Golden Age of Dutch science and technology.
Hesse was first introduced to her husband and research partner, Walther Hesse, through an introduction by his brother Richard whilst he was visiting New York. [1] Fanny Hesse then met Walther again in 1872 while traveling in Germany with her sister Eugenie. The couple engaged in 1873 and married in 1874 with a wedding held in Geneva. [3]
1802 – The first recorded use of the word biology. 1824 – Henri Dutrochet discovers that tissues are composed of living cells. 1838 – Protein discovered, named and recorded by Gerardus Johannes Mulder and Jöns Jacob Berzelius. 1862 – Louis Pasteur discovers the bacterial origin of fermentation.
The evolution of bacteria has progressed over billions of years since the Precambrian time with their first major divergence from the archaeal/eukaryotic lineage roughly 3.2-3.5 billion years ago. [1] [2] This was discovered through gene sequencing of bacterial nucleoids to reconstruct their phylogeny.
Elizabeth Bugie Gregory (October 5, 1920 – April 10, 2001) was an American biochemist who co-discovered Streptomycin, the first antibiotic against Mycobacterium tuberculosis in Selman Waksman laboratory at Rutgers University. [1] Waksman went on to win the Nobel Prize for Medicine in 1952 and took the credit for the discovery.
Considered to be the first acknowledged microscopist. Van Leeuwenhoek was the first to observe microscopic organisms, using simple single-lensed microscopes of his own design. [1] 1729–1799 Lazzaro Spallanzani: Italian Proved that bacteria did not arise due to spontaneous generation by developing a sealed, sterile broth medium. [2] [3] 1749 ...
She discovered that the microbe thrived in infected cows as well as animals that appeared healthy. The reports hypothesized that since the bacteria was found in cow's milk, a threat to human health was likely. [5] Evans decided to investigate this; she wondered whether the disease in cows could be the cause of undulant fever in humans. She ...
Ignaz Semmelweis Semmelweis, aged 42 in 1860, photograph by Borsos and Doctor Born Semmelweis Ignác Fülöp (1818-07-01) 1 July 1818 Buda, Hungary, Austrian Empire (now Budapest, Hungary) Died 13 August 1865 (1865-08-13) (aged 47) Oberdöbling, Austrian Empire (now Vienna, Austria) Citizenship Kingdom of Hungary Alma mater University of Vienna Known for Introducing hand disinfection standards ...