Principiis Obsta: Erinnerungen an Heinrich Wieland 7
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Peter P. T. Sah and the Synthesis of Vitamin C in China and Europe
EASTM 20 (2003 ): 92-98 Peter P. T. Sah and the Synthesis of Vitamin C in China and Europe Zhang Li [Zhang Li is Associate Professor at the Institute for the History of Natural Sci ence, Chinese Academy of Sciences. She has published a number of articles on the history of modern chemistry of both the West and China and the social his tory of science in twentieth-century China, including studies on the influence of higher education reform on chemical education in the 1950s in China (1992) and the coordination between national needs and scientists' autonomy during 1949-/965 (2003). She recently received her doctoral degree in the Philosophy of Science from Peking University, completing a dissertation on the institution alization of science in the People's Republic of China. Her forthcoming book is called Gaofenzi kexue zai Zhongguo de jianli ( 1949-1965) r%'J 5t r f-4 ~ ft i:p 00 R"J ~ JI. (1949-1965) ( Institutionalization of Polymer Science in China(l949- /965) Jinan: Shandong jiaoyu chubanshe 2003, ¥ff 1¥i : W J'.f: ¥!I.. W tB It& ffr±, 2003).J * * * The synthesis of vitamin C was one of the main scientific achievements in the 1930s. Many scientists in Europe made contributions to this field, especially Albert Szent-Gyorgyi (1893-1986) from Hungary and Sir Walter Norman Ha worth ( 1883-1950) from England, both of whom won the Nobel Prize in 1937. In the same period, a Chinese chemist, Sa Bentie ~ :;$: ~ (1900-1986), better known outside China as Peter P. T. Sah, was also studying vitamin C. -
Curriculum Vitae Prof. Dr. Adolf Otto Reinhold Windaus
Curriculum Vitae Prof. Dr. Adolf Otto Reinhold Windaus Name: Adolf Otto Reinhold Windaus Lebensdaten: 25. Dezember 1876 - 9. Juni 1956 Adolf Windaus war ein deutscher Chemiker. Er untersuchte Naturstoffe, vor allem die biochemisch wichtigen Sterine und ihren Zusammenhang mit anderen Naturstoffen. Er entdeckte die chemische Verwandtschaft von Cholesterin und Gallensäure. Außerdem lieferte er Arbeiten über Vitamine, vor allem das Vitamin D. Zwischen 1927 und 1931 gelang ihm die Isolierung mehrerer D-Vitamine. Seine Forschungen bildeten die Grundlage für später von seinen Schülern durchgeführten Arbeiten über die menschlichen Sexualhormone. Für seine Verdienste um die Erforschung des Aufbaus der Sterine und ihres Zusammenhangs mit den Vitaminen wurde Adolf Windaus 1928 mit dem Nobelpreis für Chemie ausgezeichnet. Akademischer und beruflicher Werdegang Adolf Windaus begann 1895 ein Studium der Medizin an der Universität Freiburg. Er wechselte nach Berlin, wo er 1897 das Physikum bestand. 1899 wurde er in Freiburg mit einer Arbeit über Neue Beiträge zur Kenntnis der Digitalisstoffe promoviert wurde. 1901 war er zunächst in Berlin als Assistent von Emil Fischer (Nobelpreis für Chemie 1902) tätig. Während dieser Zeit wandte er sich zunehmend chemischen Fragestellungen zu. Außerdem begann er mit seinen Forschungen zu den Sterinen. 1903 habilitierte er sich in Freiburg mit einer Arbeit über Cholesterin. 1906 erhielt er eine außerordentliche Professur an der Universität Göttingen. Im Anschluss wechselte er für zwei Jahre an die Universität Innsbruck, wo er eine außerordentliche Professur für angewandte medizinische Chemie erhielt. 1915 ging er zurück nach Göttingen, wo er als Nachfolger von Otto Wallach (Nobelpreis für Chemie 1910) Ordinarius für Chemie wurde. Dort blieb er bis zu seiner Emeritierung im Jahr 1944. -
Peptide Chemistry up to Its Present State
Appendix In this Appendix biographical sketches are compiled of many scientists who have made notable contributions to the development of peptide chemistry up to its present state. We have tried to consider names mainly connected with important events during the earlier periods of peptide history, but could not include all authors mentioned in the text of this book. This is particularly true for the more recent decades when the number of peptide chemists and biologists increased to such an extent that their enumeration would have gone beyond the scope of this Appendix. 250 Appendix Plate 8. Emil Abderhalden (1877-1950), Photo Plate 9. S. Akabori Leopoldina, Halle J Plate 10. Ernst Bayer Plate 11. Karel Blaha (1926-1988) Appendix 251 Plate 12. Max Brenner Plate 13. Hans Brockmann (1903-1988) Plate 14. Victor Bruckner (1900- 1980) Plate 15. Pehr V. Edman (1916- 1977) 252 Appendix Plate 16. Lyman C. Craig (1906-1974) Plate 17. Vittorio Erspamer Plate 18. Joseph S. Fruton, Biochemist and Historian Appendix 253 Plate 19. Rolf Geiger (1923-1988) Plate 20. Wolfgang Konig Plate 21. Dorothy Hodgkins Plate. 22. Franz Hofmeister (1850-1922), (Fischer, biograph. Lexikon) 254 Appendix Plate 23. The picture shows the late Professor 1.E. Jorpes (r.j and Professor V. Mutt during their favorite pastime in the archipelago on the Baltic near Stockholm Plate 24. Ephraim Katchalski (Katzir) Plate 25. Abraham Patchornik Appendix 255 Plate 26. P.G. Katsoyannis Plate 27. George W. Kenner (1922-1978) Plate 28. Edger Lederer (1908- 1988) Plate 29. Hennann Leuchs (1879-1945) 256 Appendix Plate 30. Choh Hao Li (1913-1987) Plate 31. -
The Nobel Laureate George De Hevesy (1885-1966) - Universal Genius and Father of Nuclear Medicine Niese S* Am Silberblick 9, 01723 Wilsdruff, Germany
Open Access SAJ Biotechnology LETTER ISSN: 2375-6713 The Nobel Laureate George de Hevesy (1885-1966) - Universal Genius and Father of Nuclear Medicine Niese S* Am Silberblick 9, 01723 Wilsdruff, Germany *Corresponding author: Niese S, Am Silberblick 9, 01723 Wilsdruff, Germany, Tel: +49 35209 22849, E-mail: [email protected] Citation: Niese S, The Nobel Laureate George de Hevesy (1885-1966) - Universal Genius and Father of Nuclear Medicine. SAJ Biotechnol 5: 102 Article history: Received: 20 March 2018, Accepted: 29 March 2018, Published: 03 April 2018 Abstract The scientific work of the universal genius the Nobel Laureate George de Hevesy who has discovered and developed news in physics, chemistry, geology, biology and medicine is described. Special attention is given to his work in life science which he had done in the second half of his scientific career and was the base of the development of nuclear medicine. Keywords: George de Hevesy; Radionuclides; Nuclear Medicine Introduction George de Hevesy has founded Radioanalytical Chemistry and Nuclear Medicine, discovered the element hafnium and first separated stable isotopes. He was an inventor in many disciplines and his interest was not only focused on the development and refinement of methods, but also on the structure of matter and its changes: atoms, molecules, cells, organs, plants, animals, men and cosmic objects. He was working under complicated political situation in Europe in the 20th century. During his stay in Germany, Austria, Hungary, Switzerland, Denmark, and Sweden he wrote a lot papers in German. In 1962 he edited a large part of his articles in a collection where German papers are translated in English [1]. -
Contribution to the Historical Development of Macromolecular Chemistry – Exemplified on Cellulose
CELLULOSE CHEMISTRY AND TECHNOLOGY CONTRIBUTION TO THE HISTORICAL DEVELOPMENT OF MACROMOLECULAR CHEMISTRY – EXEMPLIFIED ON CELLULOSE PETER ZUGENMAIER Institute of Physical Chemistry, Clausthal University of Technology, D-38678 Clausthal-Zellerfeld, Germany Dedicated to Professor Elfriede Husemann, on the occasion of her 100th birthday in December 2008. She was an admirable and internationally highly recognized scientist and the first director of the Institute of Macromolecular Chemistry (Hermann-Staudinger-Haus) of the Albert-Ludwigs-Universität Freiburg; the foundation of the institute owing to the eminent scientific success and recognition of the work of Hermann Staudinger, leading to the Nobel Prize in the field of macromolecular chemistry. Received October 20, 2009 The development of the structure determination for cellulose and its derivatives as macromolecules is described from the beginning of the 20th century to the 1940s. The first correct presentation of the constitution of cellulose as a linear chain macromolecule of 1-4 linked β-D-anhydroglucopyranose, with the help of organic chemistry, dates from 1928. The size and shape of cellulose molecules still remained a controversial topic for some time. On the one hand, there were proposals of micelles i.e. aggregates of cyclic mono- or oligoanhydroglucose or micelles of small macromolecules of 30-50 glucose units. On the other hand, cellulose was seen as large macromolecules with more than 3000 glucose units for structures considered in solution as well as in fibres. The final clarification of the cellulose structure as a semi-flexible macromolecule of high molecular weight was extremely hindered by the inadequate interpretation of experimental results. Later, additional experimental and theoretical methods led to a consistent picture of the cellulose structure with high precision. -
Named Organic Reactions (U – Z)
Dr. John Andraos, http://www.careerchem.com/NAMED/Named-Rxns(U-Z).pdf 1 NAMED ORGANIC REACTIONS (U – Z) © Dr. John Andraos, 2000 - 2014 Department of Chemistry, York University 4700 Keele Street, Toronto, ONTARIO M3J 1P3, CANADA For suggestions, corrections, additional information, and comments please send e-mails to [email protected] http://www.chem.yorku.ca/NAMED/ Sakae Uemura Japanese, b. Japan Uemura oxidation Nishimura, T.; Onoue, T.; Ohe, K.; Uemura S. Tetrahedron Lett. 1998 , 39 , 6011 Nishimura, T.; Onoue, T.; Ohe, K.; Uemura S. J. Org. Chem. 1999 , 64 , 6750 Biographical references: Ivar Karl Ugi 5 September 1930 – 29 September 2005 German, b. Kuressaare, Estland, Germany Ugi condensation Ugi, I.; Meyr, R.; Fetzer, U.; Steinbrueckner, C. Angew. Chem. 1959 , 71 , 386 Urban, R.; Ugi, I., Angew. Chem. Int. Engl. Ed . 1975 , 14 , 61 Biographical references: Chemical Research Faculties: An International Directory 1996 , American Chemical Society: Washington, D.C., 1996 Wer ist Wer? Das Deutsche Who’s Who 1999/2000 , Schmidt-Römhild: Lübeck, 1999 Lemmen, P.; Fontain, E.; Bauer, J. Angew. Chem. Int. Ed. 2006 , 45 , 193 Fritz Ullmann 2 July 1875 - 17 March 1939 German, b. Fürth, Germany Ullmann reaction Ullmann, F. Ann. Chem . 1904 , 332 , 38 Dr. John Andraos, http://www.careerchem.com/NAMED/Named-Rxns(U-Z).pdf 2 Biographical references: Meyer, K.H., Helv. Chim. Acta 1940 , 23 , 93 Upjohn reaction Van Rheenen, V.; Kelly, R.C.; Cha, D.Y. Tetrahedron Lett. 1976 , 1973 A. Verley French, b. ? Meerwein-Pondorff-Verley reduction see Hans Leberecht Meerwein Biographical references: Victor Villiger 1 September 1868 - 1934 Swiss, b. -
A Nobel Synthesis
MILESTONES IN CHEMISTRY Ian Grayson A nobel synthesis IAN GRAYSON Evonik Degussa GmbH, Rodenbacher Chaussee 4, Hanau-Wolfgang, 63457, Germany he first Nobel Prize for chemistry was because it is a scientific challenge, as he awarded in 1901 (to Jacobus van’t Hoff). described in his Nobel lecture: “The synthesis T Up to 2010, the chemistry prize has been of brazilin would have no industrial value; awarded 102 times, to 160 laureates, of whom its biological importance is problematical, only four have been women (1). The most but it is worth while to attempt it for the prominent area for awarding the Nobel Prize sufficient reason that we have no idea how for chemistry has been in organic chemistry, in to accomplish the task” (4). which the Nobel committee includes natural Continuing the list of Nobel Laureates in products, synthesis, catalysis, and polymers. organic synthesis we arrive next at R. B. This amounts to 24 of the prizes. Reading the Woodward. Considered by many the greatest achievements of the earlier organic chemists organic chemist of the 20th century, he who were recipients of the prize, we see that devised syntheses of numerous natural they were drawn to synthesis by the structural Alfred Nobel, 1833-1896 products, including lysergic acid, quinine, analysis and characterisation of natural cortisone and strychnine (Figure 1). 6 compounds. In order to prove the structure conclusively, some In collaboration with Albert Eschenmoser, he achieved the synthesis, even if only a partial synthesis, had to be attempted. It is synthesis of vitamin B12, a mammoth task involving nearly 100 impressive to read of some of the structures which were deduced students and post-docs over many years. -
Liste Der Nobelpreisträger
Physiologie Wirtschafts- Jahr Physik Chemie oder Literatur Frieden wissenschaften Medizin Wilhelm Henry Dunant Jacobus H. Emil von Sully 1901 Conrad — van ’t Hoff Behring Prudhomme Röntgen Frédéric Passy Hendrik Antoon Theodor Élie Ducommun 1902 Emil Fischer Ronald Ross — Lorentz Mommsen Pieter Zeeman Albert Gobat Henri Becquerel Svante Niels Ryberg Bjørnstjerne 1903 William Randal Cremer — Pierre Curie Arrhenius Finsen Bjørnson Marie Curie Frédéric John William William Mistral 1904 Iwan Pawlow Institut de Droit international — Strutt Ramsay José Echegaray Adolf von Henryk 1905 Philipp Lenard Robert Koch Bertha von Suttner — Baeyer Sienkiewicz Camillo Golgi Joseph John Giosuè 1906 Henri Moissan Theodore Roosevelt — Thomson Santiago Carducci Ramón y Cajal Albert A. Alphonse Rudyard \Ernesto Teodoro Moneta 1907 Eduard Buchner — Michelson Laveran Kipling Louis Renault Ilja Gabriel Ernest Rudolf Klas Pontus Arnoldson 1908 Metschnikow — Lippmann Rutherford Eucken Paul Ehrlich Fredrik Bajer Theodor Auguste Beernaert Guglielmo Wilhelm Kocher Selma 1909 — Marconi Ostwald Ferdinand Lagerlöf Paul Henri d’Estournelles de Braun Constant Johannes Albrecht Ständiges Internationales 1910 Diderik van Otto Wallach Paul Heyse — Kossel Friedensbüro der Waals Allvar Maurice Tobias Asser 1911 Wilhelm Wien Marie Curie — Gullstrand Maeterlinck Alfred Fried Victor Grignard Gerhart 1912 Gustaf Dalén Alexis Carrel Elihu Root — Paul Sabatier Hauptmann Heike Charles Rabindranath 1913 Kamerlingh Alfred Werner Henri La Fontaine — Robert Richet Tagore Onnes Theodore -
The White Rose in Cooperation With: Bayerische Landeszentrale Für Politische Bildungsarbeit the White Rose
The White Rose In cooperation with: Bayerische Landeszentrale für Politische Bildungsarbeit The White Rose The Student Resistance against Hitler Munich 1942/43 The Name 'White Rose' The Origin of the White Rose The Activities of the White Rose The Third Reich Young People in the Third Reich A City in the Third Reich Munich – Capital of the Movement Munich – Capital of German Art The University of Munich Orientations Willi Graf Professor Kurt Huber Hans Leipelt Christoph Probst Alexander Schmorell Hans Scholl Sophie Scholl Ulm Senior Year Eugen Grimminger Saarbrücken Group Falk Harnack 'Uncle Emil' Group Service at the Front in Russia The Leaflets of the White Rose NS Justice The Trials against the White Rose Epilogue 1 The Name Weiße Rose (White Rose) "To get back to my pamphlet 'Die Weiße Rose', I would like to answer the question 'Why did I give the leaflet this title and no other?' by explaining the following: The name 'Die Weiße Rose' was cho- sen arbitrarily. I proceeded from the assumption that powerful propaganda has to contain certain phrases which do not necessarily mean anything, which sound good, but which still stand for a programme. I may have chosen the name intuitively since at that time I was directly under the influence of the Span- ish romances 'Rosa Blanca' by Brentano. There is no connection with the 'White Rose' in English history." Hans Scholl, interrogation protocol of the Gestapo, 20.2.1943 The Origin of the White Rose The White Rose originated from individual friend- ships growing into circles of friends. Christoph Probst and Alexander Schmorell had been friends since their school days. -
Ernest Rutherford : La Transformation Radioactive
Ernest Rutherford – Radioactive Change By Pierre Radyanyi Director of Honorary Research at CNRS ABSTRACT At the beginning of the 20th century, Rutherford, born in New Zealand, carried out a series of remarkable experiments in Montreal, some of which in collaboration with Frederick Soddy. He showed, using thorium, that radioactivity is the transmutation from one chemical element to another by the emission of radiation. In 1903, Rutherford and Soddy drew together the conclusions of their work in the article Radioactive Change. After his Nobel Prize for Chemistry in 1908, Rutherford discovered in Manchester during 1911 that the atom possessed a nucleus, and in 1919 observed the first nuclear reaction. He became the director of the Cavendish laboratory in Cambridge and could count amongst his colleagues and students many prestigious chemists and physicists. Figure 1: Ernest Rutherford (1871-1937) (Nobel Foundation Prize) 1 FROM NEW ZEALAND TO MONTREAL VIA CAMBRIDGE Ernest Rutherford’s tomb can be found in Westminster Abbey, not far from that of Isaac Newton. A major pioneer of radioactive science and nuclear physics, he was one of the great physicists of the first half of the twentieth century. He was born into a large family (he was one of twelve children) in 1871 in Spring Grove, near Nelson, on the northern edge of the southern island of New Zealand. His parents were of Scottish origin. His father had various occupations; he was responsible for a sawmill, made the sleepers for railway lines and was a linen maker. His mother was a primary school teacher, attending to the family. The New Zealand of Rutherford’s Time New Zealand is composed of two mountainous islands, spreading North to South in the South Pacific Ocean. -
María Goeppert Mayer: De Gotinga a Premio Nobel De Física
José Manuel Sánchez Ron José Manuel Sánchez Ron María Goeppert Mayer: de Gotinga a Premio María Goeppert Mayer: Nobel de Física de Gotinga a Premio María Goeppert Mayer (1906-1972) fue una de las cuatro José Manuel Sánchez Ron se Nobel de Física mujeres que, hasta la fecha, han obtenido el Premio Nobel licenció en Física en la Universidad de Física: Marie Curie (1903), María Goeppert Mayer Complutense de Madrid y doctoró en la Universidad de Londres. (1963), Donna Strickland (2018) y Andrea Ghez (2020). Desde 2019 es catedrático emérito Insertando su biografía y contribuciones en el contexto de de Historia de la Ciencia en la los mundos científico y nacional en los que vivió (Alemania Universidad Autónoma de Madrid, y Estados Unidos), el catedrático emérito de Historia de la donde antes de obtener esa cátedra en 1994 fue profesor titular Ciencia en la Universidad Autónoma de Madrid y miembro de Física Teórica. Es autor de de la Real Academia Española, José Manuel Sánchez Ron, numerosas e influyentes obras de reconstruye en este libro los avatares de su carrera, que la historia de la ciencia internacional llevó de la Universidad de Gotinga a la de California en San y española. En 2015 recibió el Diego, pasando por Johns Hopkins, Columbia y Chicago. Premio Nacional de Ensayo por El mundo después de la revolución. Dotada especialmente para la física teórica, sin embargo las La física de la segunda mitad del “circunstancias” de su vida no le permitieron desarrollar un siglo xx, el primer Premio Nacional programa de investigación con cierta coherencia y continuidad. -
Microanalysis of Polymer Chain Diffusion in Heat Seals Russell Cooper Clemson University, [email protected]
Clemson University TigerPrints All Theses Theses 12-2014 Microanalysis of Polymer Chain Diffusion in Heat Seals Russell Cooper Clemson University, [email protected] Follow this and additional works at: https://tigerprints.clemson.edu/all_theses Part of the Engineering Science and Materials Commons, Materials Science and Engineering Commons, and the Polymer Science Commons Recommended Citation Cooper, Russell, "Microanalysis of Polymer Chain Diffusion in Heat Seals" (2014). All Theses. 2039. https://tigerprints.clemson.edu/all_theses/2039 This Thesis is brought to you for free and open access by the Theses at TigerPrints. It has been accepted for inclusion in All Theses by an authorized administrator of TigerPrints. For more information, please contact [email protected]. MICROANALYSIS OF POLYMER CHAIN DIFFUSION IN HEAT SEALS A Thesis Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Master of Science Packaging Science by Russell Timms Cooper December 2014 Accepted by: Dr. Duncan Darby, Committee Chair Dr. Robert Kimmel Dr. Patrick Gerard ABSTRACT Heat sealing is an integral method for the closure and protection of packaging. Previous work has shown that seal strength is developed by the interdiffusion of polymer chains within heat seals. Heat seals were made between two dissimilar materials. Poly(ethylene-co-acrylic acid) (EAA) was heat sealed to ionomer. Diffusion within the EAA-ionomer heat seals was estimated. The diffusion estimates were then related to resulting seal strength in the EAA-ionomer sealant system. Heated tooling sealing was utilized to make heat seals at 40 psi (275.79 kPa), 0.5 seconds, and a range of temperatures between 180˚F (82.22˚C) and 300˚F (148.89˚C).