43 results found for chemistry

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Advances in Olefin Metathesis Employing Molybdenum and Tungsten Catalysts Lindau-Nobel Richard Schrock 2013 00:34:00

Advances in Olefin Metathesis Employing Molybdenum and Tungsten Catalysts

by Richard Schrock
Advances in Olefin Metathesis Employing Molybdenum and Tungsten Catalysts
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 577 views
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Olefin metathesis is an irresistible way to make C=C bonds catalytically in organic molecules and polymers, both as a consequence of its very nature, i.e. the synthesis of C=C bonds from C=C bonds, and because of the control that can be exercised thr....

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Aquaporin Water Channels 00:32:00

Aquaporin Water Channels – From Atomic Structure to Malaria

by Peter Agre
Aquaporin Water Channels – From Atomic Structure to Malaria
for 18-22 and upwards,
Lectures | 18-22 and upwards | 2 years ago | 355 views
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Aquaporin channels allow water to rapidly cross cell membranes in all living organisms. AQP1 confers red cells and proximal renal tubules with high water permeability. Present in renal collecting duct, AQP2 is regulated by vasopressin, and human muta....

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Atmospheric Chemistry and Climate in the Anthropocene Lindau-Nobel Paul Crutzen 2012 00:23:00

Atmospheric Chemistry and Climate in the Anthropocene

by Paul Krutzen
Atmospheric Chemistry and Climate in the Anthropocene
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 503 views
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Despite their relatively small mass, 10% of the earth biosphere as a whole, generations of ambitious ‘homo sapiens’ have already played a major and increasing role in changing basic properties of the atmosphere and the earth’s surface.  Human ....

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C60-Buckminsterfullerene 00:32:00

C60-Buckminsterfullerene: Not just a Pretty Molecule

by Harry Kroto
C60-Buckminsterfullerene: Not just a Pretty Molecule
for 14-19 and upwards,
Lectures | 14-19 and upwards | 2 years ago | 673 views
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Amongst the Nobel Laureates lecturing in Lindau, Sir Harold Kroto would probably earn the award for the most unusual and characteristic way of presenting. This lecture, which is the first he ever gave in Lindau, is no exception. Kroto`s way of presen....

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Catalysis at Surfaces - From Atoms to Complexity Lindau-Nobel Gerhard Ertl 2013 00:30:00

Catalysis at Surfaces: From Atoms to Complexity

by Gerhard Ertl
Catalysis at Surfaces: From Atoms to Complexity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 403 views
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Catalysis by solid surfaces is, among others, of importance for the chemical industry (e.g. the Haber-Bosch process) as well as for environmental chemistry (car exhaust catalyst).  Surface physical techniques enable investigation of the underlying e....

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Catalysis at Surfaces 00:31:00

Catalysis at Surfaces: From Atoms to Complexity

by Gerhard Ertl
Catalysis at Surfaces: From Atoms to Complexity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 2 years ago | 366 views
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This lecture addresses the question if spatio-temporal self-organisation of matter which is so characteristic for living systems can also be verified with a simple inorganic reaction in which the observed phenomena of complexity can be traced back to....

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Chemistry - L-N - Noyori - Chem 2009 00:31:00

Chemistry: the Key to Our Future

by Ryoji Noyori
Chemistry: the Key to Our Future
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 451 views
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Chemistry is not merely a science of making observations in order to better understand Nature. Our science is creative and productive, generating substances of very high value from almost nothing. Chemists already have made enormous contribution to....

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Cross-Coupling Reactions of Organoboranes - An Easy Way for Carbon-Carbon Bonding Lindau-Nobel Akira Suzuki 2013 00:30:00

Cross-Coupling Reactions of Organoboranes: An Easy Way for Carbon-Carbon Bonding

by Akira Suzuki
Cross-Coupling Reactions of Organoboranes: An Easy Way for Carbon-Carbon Bonding
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 779 views
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The palladium-catalyzed cross-coupling reaction between different types of organoboron compounds and various organic halides in the presence of base provides a powerful and general methodology for the formation of carbon-carbon bonds.  The (sp3)C-B ....

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Darwinian - L-N - Arber - M 2007 00:46:00

Darwinian evolution as understood by scientists of the 21st century

by Werner Arber
Darwinian evolution as understood by scientists of the 21st century
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 483 views
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After a short reminder of the historical development of evolutionary biology, elements to a molecular theory of Darwinian evolution will be presented. Biological evolution is driven by the availability of genetic variants in populations. The occasi....

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Designing Molecules and Nanoparticles to Help See and Treat Disease - Lindau-Nobel - Roger Tsien - Chemistry 2010 00:35:00

Designing Molecules and Nanoparticles to Help See and Treat Disease

by Roger Tsien
Designing Molecules and Nanoparticles to Help See and Treat Disease
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 436 views
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Molecules to observe and manipulate biological systems can be devised by a variety of strategies, ranging from pure chemical design and total synthesis to genome mining and high-throughput directed evolution. Examples of both successes and failures a....

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Dynamics of Chemical Reactions - Lindau-Nobel - Yuan Lee - Chemistry 2010 00:49:00

Dynamics of Chemical Reactions

by Yuan Lee
Dynamics of Chemical Reactions
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 457 views
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Every macroscopic chemical transformation, whether it is atmospheric ozone depletion or the burning of a candle, consists of millions of microscopic chemical events, which involve collisions between molecules.  It has been the dream of scientists fo....

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Electron Transfer Theory 00:29:00

Electron Transfer Theory in Single Molecule Studies of Intermittent Fluorescence of Quantum Dots and in Initial Steps in Dye Sensitized Solar Cells

by Rudolph Marcus
Electron Transfer Theory in Single Molecule Studies of Intermittent Fluorescence of Quantum Dots and in Initial Steps in Dye Sensitized Solar Cells
for 18-22 and upwards,
Lectures | 18-22 and upwards | 2 years ago | 336 views
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Intermittently fluorescing single molecule systems are found in many materials, including semiconductor quantum dots (QD), dyes on crystalline or nanoparticle film surfaces, and biological systems. The QD's show a ~ -3/2 power law for the distributio....

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