Muller, Paul Hermann

Muller, Paul Hermann
[br]
b. 12 January 1899 Olten, Solothurn, Switzerland
d. 13 October 1965 Basle, Switzerland
[br]
Swiss chemist, inventor of the insecticide DDT.
[br]
Muller was educated in Basle and his interest in chemistry was stimulated when he started work as a laboratory assistant in the chemical factory of Dreyfus \& Co. After further laboratory work, he entered the University of Basle in 1919, achieving his doctorate in 1925. The same year, he entered the dye works of J.R.Geigy AG as a research chemist. He spent the rest of his career there, rising to the position of Deputy Head of Pest Control Research. From 1935 he began the search for an insecticide that was fast acting and persistent, but harmless to plants and warmblooded animals. In 1940 he patented the use of a compound known since 1873, dichlorodiphenyltrichloroethane, or DDT. It could be easily and cheaply manufactured and was highly effective. Muller obtained a Swiss patent for DDT in 1940 and it went into commercial production two years later. One useful application of DDT at the end of the Second World War was in killing lice to prevent typhus epidemics. It was widely used and an important factor in farmers' postwar success in raising food production, but after twenty years or so, some species of insects were found to have developed resistance to its action, thus limiting its effectiveness. Worse, it was found to be harmful to other animals, which gave rise to anxieties about its persistence in the food chain. By the 1970s its use was banned or strictly limited in developed countries. Nevertheless, in its earlier career it had conferred undoubted benefits and was highly valued, as reflected by the award of a Nobel Prize in Medicine or Physiology in 1948.
[br]
Principal Honours and Distinctions
Nobel Prize in Medicine or Physiology 1948.
Bibliography
Muller described DDT and related compounds in two papers in Helvetica chimica acta for 1944 and 1946.
Further Reading
Obituary, 1965, Nature 208:1,043–4.
LRD

Biographical history of technology. - Taylor & Francis e-Librar. . 2005.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • MULLER Paul Hermann — (1899 1965) (retrato) [véase http://www.iqb.es/diccio/m/mu.htm#mullerp]: Químico suizo descubridor del DDT, el primer insecticida eficaz que permitió erradicar la malaria de muchas zonas Diccionario ilustrado de Términos Médicos.. Alvaro Galiano …   Diccionario médico

  • Müller , Paul Hermann — (1899–1965) Swiss chemist Müller, who was born in Olten, Switzerland, was educated at the University of Basel where he obtained his PhD in 1925. From then until 1961 when he retired Müller worked for the Swiss dye firm of J.R. Geigy as a research …   Scientists

  • Müller, Paul Hermann — ▪ Swiss chemist born Jan. 12, 1899, Olten, Switz. died Oct. 12, 1965, Basel  Swiss chemist who received the Nobel Prize for Physiology or Medicine in 1948 for discovering the potent toxic effects on insects of DDT. With its chemical derivatives,… …   Universalium

  • Paul Hermann Muller — Paul Hermann Müller Pour les articles homonymes, voir Müller. Paul Hermann Müller (né le 12 janvier 1899 à Olten et décédé le 12 octobre 1965 à Bâle) était un chimiste suisse, découvreur en 1939 de l efficacité du DDT… …   Wikipédia en Français

  • Paul Hermann Müller — Pour les articles homonymes, voir Müller. Paul Hermann Müller (12 janvier 1899 à Olten, Suisse 12 octobre 1965 à Bâle, Suisse) est un chimiste suisse, lauréat du prix Nobel de physiologie ou médecine de 1948 …   Wikipédia en Français

  • Paul Hermann Müller — (* 12. Januar 1899 in Olten/Solothurn; † 12. Oktober 1965 in Basel) war ein Schweizer Chemiker. Paul Hermann Müllers Vater war als Kaufmann bei der Schweizer Bahn angestellt. Seine frühe Kindheit verbrachte er in Lenzburg (Kanton Aargau), bevor… …   Deutsch Wikipedia

  • Paul Hermann Müller — (12 de enero, de 1899 – 12 de octubre, de 1965) fue un químico suizo y ganador en 1948 del Premio Nobel de Fisiología o Medicina por su descubrimiento del DDT como un insecticida usado en el control de la malaria, fiebre amarilla, y muchas otras… …   Wikipedia Español

  • Paul Hermann Müller — Infobox Scientist name = Paul Hermann Müller image size = 150px birth date = January 12, 1899 birth place = Olten, Solothurn, Switzerland death date = death date and age|1965|10|12|1899|01|12|df=yes death place = Basel, Switzerland nationality =… …   Wikipedia

  • Paul Hermann Muller — noun Swiss chemist who synthesized DDT and discovered its use as an insecticide (1899 1965) • Syn: ↑Muller • Instance Hypernyms: ↑chemist …   Useful english dictionary

  • Paul H. Müller — Paul Hermann Müller (* 12. Januar 1899 in Olten/Solothurn; † 12. Oktober 1965 in Basel) war ein Schweizer Chemiker. Paul Hermann Müllers Vater war als Kaufmann bei der Schweizer Bahn angestellt. Seine frühe Kindheit verbrachte er in Lenzburg… …   Deutsch Wikipedia

  • Medizinnobelpreis 1948: Paul Hermann Müller —   Der schweizerische Chemiker erhielt den Nobelpreis für die Entdeckung der »Wirkung des DDT als Kontaktgift gegen verschiedene Arthropoden«.    Biografie   Paul Hermann Müller, * Olten (Kanton Solothurn) 12. 1. 1899, ✝ Basel 13. 10. 1965; 1919… …   Universal-Lexikon

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”