The document summarizes Nobel Prizes in Chemistry from 1989 to 1980, listing each year's recipients, their share of the prize, and a brief description of their award-winning work. It describes Sidney Altman and Thomas Cech receiving half shares in 1989 for discovering catalytic properties of RNA, and lists other recipients and achievements in subsequent years related to photosynthesis, molecular interactions, reaction dynamics, crystal structure determination, solid-state synthesis, electron transfer mechanisms, crystallographic microscopy of nucleic acid-protein complexes, and theories of chemical reactions.
Electron transfer activity of the photosystem II significantly decreased after the exposure of the Chlorella cells to all the six chemicals availed. Lipid peroxidation was slightly reduced by the antioxidant propyl gallate, not changed by indium nitrate and very potently simulated by diethanolamine, chloroquine, sodium monofluoroacetate and the bromobenzene. For five of the chemicals studied (not bromobenzene) there is the very good correlation between the cytotoxic effects in Chlorella cells measured by the algal growth inhibition test, and also the inhibition of photosystem II activity (Chapman et al., 1991). The results suggest that one very key effect of these chemicals in the Chlorella cells is the inhibition of photosynthetic metabolism by the blocking of the photosystem II functionality.
Electron transfer activity of the photosystem II significantly decreased after the exposure of the Chlorella cells to all the six chemicals availed. Lipid peroxidation was slightly reduced by the antioxidant propyl gallate, not changed by indium nitrate and very potently simulated by diethanolamine, chloroquine, sodium monofluoroacetate and the bromobenzene. For five of the chemicals studied (not bromobenzene) there is the very good correlation between the cytotoxic effects in Chlorella cells measured by the algal growth inhibition test, and also the inhibition of photosystem II activity (Chapman et al., 1991). The results suggest that one very key effect of these chemicals in the Chlorella cells is the inhibition of photosynthetic metabolism by the blocking of the photosystem II functionality.
Generalities on the use of Deuterium Nuclear Magnetic Resonance . Explains its used in chemistry and biochemistry as well as the physical mechanisms needed to understand this method.
Generalities on the use of Deuterium Nuclear Magnetic Resonance . Explains its used in chemistry and biochemistry as well as the physical mechanisms needed to understand this method.
1. The Nobel Prize in
Chemistry 1989-1980
Pooja S Nathan
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SCET Kodakara
2. The Nobel Prize in Chemistry 1989
Sidney Altman
Prize share: 1/2
Thomas R. Cech
Prize share: 1/2
For their discovery of catalytic properties of RNA
3. The Nobel Prize in Chemistry 1988
For the determination of 3d structure of a photosynthetic reaction Centre
Johann Deisenhofer
Prize share: 1/3
Robert Huber
Prize share: 1/3
Hartmut Michel
Prize share: 1/3
4. The Nobel Prize in Chemistry 1987
Charles J. Pedersen
Prize share: 1/3
Jean-Marie Lehn
Prize share: 1/3
Donald J. Cram
Prize share: 1/3
For their development and use of
molecules with structure-specific interactions of high selectivity.
5. The Nobel Prize in Chemistry 1986
John C. Polanyi
Prize share: 1/3
Yuan T. Lee
Prize share: 1/3
Dudley R. Herschbach
Prize share: 1/3
For their contributions concerning the dynamics of chemical elementary processes
6. The Nobel Prize in Chemistry 1985
For their outstanding achievements in the development of direct methods for the
determination of crystal structures
Herbert A. Hauptman
Prize share: 1/2
Jerome Karle
Prize share: 1/2
7. The Nobel Prize in Chemistry 1984
For his development of methodology for chemical synthesis on a solid matrix
Robert Bruce Merrifield
Prize share: 1/1
8. The Nobel Prize in Chemistry 1983
Henry Taube
Prize share: 1/1
For his work on the mechanisms of electron transfer reactions,
especially in metal complexes
9. The Nobel Prize in Chemistry 1982
Aaron Klug
Prize share: 1/1
For his development of crystallographic electron microscopy and his structural
elucidation of biologically important nucleic acid-protein complexes".
10. The Nobel Prize in Chemistry 1981
Kenichi Fukui
Prize share: 1/2
Roald Hoffmann
Prize share: 1/2
For their theories, developed independently, concerning the course of chemical reactions
11. The Nobel Prize in Chemistry 1980
Paul Berg
Prize share: 1/2
Walter Gilbert
Prize share: 1/4
Frederick Sanger
Prize share: 1/4
• One half awarded to Paul Berg " for his fundamental studies of the biochemistry of nucleic
acids, with particular regard to recombinant-DNA ".
• The other half jointly to Walter Gilbert and Frederick Sanger "for their contributions concerning
the determination of base sequences in nucleic acids ".