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List Of Photochemists
This is a list of notable photochemists. Photochemistry, a sub-discipline of chemistry, is the study of chemical reactions that proceed with the absorption of light by atoms or molecules. Photochemists * Nicola Armaroli * Vincenzo Balzani * E. J. Bowen * John William Draper * Arthur Eichengrün * Theodor Grotthuss * Selig Hecht * Michael Kasha * Walter Metcalf * David Phillips * James Pitts * Fritz Weigert * Zhenghua ZHUbr>(List of publications, incomplete) See also * Photochemistry * Lists of people by occupation This is a list of lists of people by occupation. Each is linked to a list of notable people within that profession. Lists of lists *Actors *Engineers *Musicians *Scientists List of... * Accordionists *Africanists *Anthropologists *Archaeolo ... {{DEFAULTSORT:Photochemists * Lists of natural scientists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photochemistry
Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible light (400–750 nm) or infrared radiation (750–2500 nm). In nature, photochemistry is of immense importance as it is the basis of photosynthesis, vision, and the formation of vitamin D with sunlight. Photochemical reactions proceed differently than temperature-driven reactions. Photochemical paths access high energy intermediates that cannot be generated thermally, thereby overcoming large activation barriers in a short period of time, and allowing reactions otherwise inaccessible by thermal processes. Photochemistry can also be destructive, as illustrated by the photodegradation of plastics. Concept Grotthuss–Draper law and Stark-Einstein law Photoexcitation is the first step in a photochemical process where the reactant is elevated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Kasha
Michael Kasha (December 6, 1920 – June 12, 2013) was an American physical chemist and molecular spectroscopist who was one of the original founders of the Institute of Molecular Biophysics at Florida State University . Education and early work Born in Elizabeth, NJ to a family of Ukrainian immigrants, Kasha studied chemical engineering at night at the Cooper Union in New York City for two years while working full-time during the days at the Merck & Co. research facility in New Jersey. He then received a full scholarship to the University of Michigan, where he completed a bachelor's degree in chemistry. He earned his Ph.D. in chemistry from University of California at Berkeley in 1945, working with renowned physical chemist G.N. Lewis. Following postdoctoral work with Robert Mulliken, he joined the Chemistry department at Florida State University as a faculty member in 1951. Awards and honors Kasha was a Distinguished University Research Professor at Florida State Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lists Of People By Occupation
This is a list of lists of people by occupation. Each is linked to a list of notable people within that profession. Lists of lists *Actors *Engineers *Musicians *Scientists List of... * Accordionists *Africanists *Anthropologists *Archaeologists *Architects **Women architects *Archivists *Artists *Astronauts ** Astronauts by name ** Astronauts by selection ** Space travelers by name * Astronomers and astrophysicists *Au pairs *Aviators *Biochemists * Biographers *Biologists *Botanists *Business theorists *Caricaturists *Cartographers *Cartoonists *Censors *Centenarians *Chefs *Chemists *Chess grandmasters * Chess players *Chief executive officers *Choreographers *Christian theologians * Civil rights leaders *Climbers *Clinical psychologists *Clowns *Club DJs *Coleopterists *Comedians * Comic creators *Composers *Computer scientists *Copywriters *Cosmologists *Crime bosses * Criminal justice academics *Critical theorists *Critics * Dance personalities *Dancers *Dentists *Derma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhenghua ZHU
Bukit Panjang is a planning area and residential town located in the West Region of Singapore. A portion of this town is situated on a low-lying elongated hill. The planning area is bounded by Bukit Batok to the west, Choa Chu Kang to the northwest, Sungei Kadut to the north, the Central Water Catchment to the east and Bukit Timah to the south. Bukit Panjang New Town is located at the northern portion of the planning area. Bukit Panjang has an average elevation of 36m/118 ft. The town is categorised into seven subzones, namely Jelebu, Bangkit, Fajar, Saujana, Senja, Dairy Farm and Nature Reserve. Bukit Panjang is a quieter town compared to some of the older housing estates such as Toa Payoh, Ang Mo Kio and other more publicly discussed towns due to its lower population, but it has seen major developments in recent years. Etymology Bukit Panjang means "long hill" in Malay. The roads in the town are named after old 60s kampung tracks (Lorong Petir, Lorong Pending, Ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Weigert
Fritz Weigert (18 September 1876 – 13 April 1947) was a German physical chemist. Weigert has made major contributions in the field of photochemistry. He was born in Berlin. He was the nephew of both Karl Weigert and Paul Ehrlich. He was married to Margarete Behmer. Around 1908, he began teaching and conducting research at Berlin University - after studying there. He was a photochemistry professor at Leipzig University from 1914 until being, like other Jewish scientists, forced out by the Nazis in 1934. On January 1, 1935, he immigrated to England and in 1936 was director of the Physiochemical Department of the Cancer Research Institute at Mount Vernon Hospital Mount Vernon Hospital is located in Northwood, an area of north-west Greater London. It is one of two hospitals run by The Hillingdon Hospitals NHS Foundation Trust. History The hospital was founded as The North London Hospital for Co ..., Northwood. He elucidated the metabolism of the carcinogenic hydrocar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Pitts (chemist)
James N. Pitts Jr. (January 10, 1921 – June 19, 2014) was an American chemist and researcher known for his work in the fields of photochemistry and atmospheric chemistry. Pitts was a pioneer in the study of smog and air pollution, especially in Los Angeles County. Pitts co-founded the Statewide Air Pollution Research Center at the University of California, Riverside in 1961 and served as the center's director from 1970 to 1988. He authored more than 400 scientific publications and four books on the subjects, especially smog. Pitts' research formed the basis for California's air quality laws. According to the chair of the Air Resources Board, Mary Nichols, "Jim Pitts was probably the single person most responsible for the understanding of what strategies we need to clean up Southern California's air...He was able to explain all of this in English to policymakers so that they would be able to accept that it was going to take extensive and difficult actions to control emissi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Phillips (chemist)
David Phillips, (born 3 December 1939) is a British Chemist specialising in photochemistry and lasers, and was president of the Royal Society of Chemistry from 2010 to 2012. Education and early life Phillips was born 3 December 1939 in Kendal, lived in South Shields and attended the Grammar School. He studied at the University of Birmingham attaining a BSc and PhD. Career and research Phillips began his career doing postdoctoral research at the University of Texas at Austin and the Academy of Sciences of the USSR.Desert Island Discs Professor David Phillips He was appointed a lecturer in chemistry at the , rising to the status of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Metcalf (chemist)
__NOTOC__ Walter Sidney Metcalf (18 May 1918 – 25 July 2008) was a New Zealand physical chemist. Matcalf was born in Kaitangata on 18 May 1918, the son of George Metcalf, and was educated at Napier Boys' High School. He earned a bachelor's degree in music in parallel with his first science degree at the University of Otago, and completed a DPhil degree with E. J. Bowen at England's Oxford University. Metcalf married Mary Glen Simmers, and the couple went on to thave two children. Metcalf initially worked at Victoria University College, then moved to Canterbury University College (now the University of Canterbury) in 1954. He retired as a reader in 1975. He worked mainly on photochemistry and was awarded the T. K. Sidey Medal by the Royal Society of New Zealand for his research in 1966. Towards the end of his career, he worked on calcium metabolism Calcium metabolism is the movement and regulation of calcium ions (Ca2+) ''in'' (via the gut) and ''out'' (via the gut and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selig Hecht
Selig Hecht (1892–1947) was an American physiologist who studied photochemistry in photoreceptor cells. Life Hecht was born in Glogau, then in the German Empire (now Głogów in Poland), the son of Mandel Hecht and Mary Mresse. The family migrated to the USA in 1898, settling in New York City. His studies and talents led to Columbia University making him professor of biophysics in 1928. In June 1917 Hecht received his Ph.D. and married Celia Huebschmann. Their daughter Maressa was born in 1924. Hecht began his study into light sensitivity with clams (''Mya arenaria'') and insects. His specialty was photochemistry, the kinetics of the reactions initiated by light in the receptors. He made contributions to the knowledge of dark adaptation, visual acuity, brightness discrimination, color vision, and the mechanism of the visual threshold. He spent time as a post-doctoral researcher with the group of Edward Charles Cyril Baly at the University of Liverpool, UK. Baly was a pionee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemistry
Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a Chemical reaction, reaction with other Chemical substance, substances. Chemistry also addresses the nature of chemical bonds in chemical compounds. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both Basic research, basic and Applied science, applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodor Grotthuss
Freiherr Christian Johann Dietrich Theodor von Grotthuss (20 January 1785 – 26 March 1822) was a Baltic German scientist known for establishing the first theory of electrolysis in 1806 and formulating the first law of photochemistry in 1817. His theory of electrolysis is considered the first description of the so-called Grotthuss mechanism. Life and work Grotthuss was born in 1785 in Leipzig, Electorate of Saxony, Holy Roman Empire, during an extended stay of his parents away from their home in northern Grand Duchy of Lithuania. He showed interest in natural sciences and went to study first in Leipzig and later in Paris at the École Polytechnique. Several renowned scientists taught at the École Polytechnique at that time, including Antoine François, comte de Fourcroy, Claude Louis Berthollet and Louis Nicolas Vauquelin. Because of some tensions in the relations between Russia and France, Grotthuss had to leave for Italy where he stayed at Naples for one year. The discovery o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Eichengrün
Arthur Eichengrün (13 August 1867 – 23 December 1949) was a German Jewish chemist, materials scientist, and inventor. He is known for developing the highly successful anti-gonorrhea drug Protargol, the standard treatment for 50 years until the adoption of antibiotics, and for his pioneering contributions in plastics: co-developing (with Theodore Becker) the first soluble cellulose acetate materials in 1903, called "Cellit", and creating processes for the manufacture of these materials which were influential in the development of injection moulding. During World War I his relatively non-flammable synthetic cellulose acetate lacquers, marketed under the name "Cellon", were important in the aircraft industry. He contributed to photochemistry by inventing the first process for the production and development of cellulose acetate film, which he patented with Becker. Eichengrün claimed to have directed the initial synthesis of aspirin in 1897, but his claim has been disputed. For m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
