Category Archives: Chemistry

American scientists Eric Betzig and William Moerner and Germany's Stefan Hell won the 2014 Nobel Prize for chemistry for the development of super-resolved fluorescence microscopy, the award-giving body said on Wednesday. The Royal Swedish Academy of Sciences awarding the 8 million crown ($1.1 million) prize said the three scientists' research had made it possible to study molecular processes in real time. "Due to their achievements the optical microscope can now peer into the nanoworld," the academy said in a statement. Betzig works at the Howard Hughes Medical Institute in Ashburn, United States, while Moerner is professor at Stanford University. Hell is Director of the Max Planck Institute for Biophysical Chemistry in Germany. Chemistry was the third of this year's Nobel prizes. The prize is named after dynamite inventor Alfred Nobel and has been awarded since 1901 for achievements in science, literature and peace in accordance with his will. The chemistry prize has often lived in the shadow of physics and its star scientists such as Albert Einstein, though it was the field that was arguably closest to the heart of Nobel's own work developing dynamite and other explosives. As winners of the chemistry prize, the laureates enter an exclusive club … Continue reading →

The three winners of the 2014 Nobel Prize for chemistry: Americans Eric Betzig and William Moerner, and German scientist Stefan Hell. Bertil Ericson/AP hide caption The three winners of the 2014 Nobel Prize for chemistry: Americans Eric Betzig and William Moerner, and German scientist Stefan Hell. Two Americans and a German will share the Nobel Prize in chemistry for developing a new type of microscopy that allows researchers, for the first time, to see individual molecules inside living cells. The Royal Swedish Academy of Sciences has awarded Americans Eric Betzig and William Moerner and German scientist Stefan Hell the prize for "the development of super-resolved fluorescence microscopy," which "has brought optical microscopy into the nanodimension." Nobelprize.org says: "For a long time optical microscopy was held back by a presumed limitation: that it would never obtain a better resolution than half the wavelength of light. Helped by fluorescent molecules the Nobel Laureates in Chemistry 2014 ingeniously circumvented this limitation. Their ground-breaking work has brought optical microscopy into the nanodimension. "In what has become known as nanoscopy, scientists visualize the pathways of individual molecules inside living cells. They can see how molecules create synapses between nerve cells in the brain; they can … Continue reading →

Two Americans and a German won the Nobel Prize in Chemistry today for work that allows optical microscopes to study cells in the tiniest molecular detail, aiding in research of diseases such as Parkinsons and Alzheimers. Eric Betzig, 54, of the Howard Hughes Medical Institute, Stefan Hell, 51, of the Max Planck Institute for Biophysical Chemistry and William Moerner, 61, of Stanford University will share the 8 million-krona ($1.1 million) award for their work on super-resolved fluorescence microscopy, the Royal Swedish Academy of Sciences said at a Stockholm news conference today. This prize is about seeing, said Maans Ehrenberg, a professor of molecular biology at Uppsala University and a member of the Nobel Committee for Chemistry. The laureates have expanded what we can with see with light microscopy from bacteria down to really small molecules. Related: Optical microscopes use visible light, which doesnt damage its subject. Electron microscopes, which can examine even smaller objects, require chemical preparation of the subject and cant be used on living organisms. In fluorescent microscopy, proteins and other cell components are marked with luminescent molecules. It allows scientists to see molecules create synapses between nerve cells in the brain, as well as monitor the progress … Continue reading →

Eric Betzig, Stefan W. Hell and William E. Moerner share the 2014 chemistry Nobel for the development of super-resolved fluorescence microscopy, which has enabled the study of single molecules in ongoing chemical reactions in living cells. Steve Mirsky reports This years prize is about how the optical microscope became a nanoscope. Royal Swedish Academy of Sciences Permanent Secretary Staffan Normark. The Royal Swedish Academy of Sciences has decided to award the 2014 Nobel Prize in Chemistry to Dr. Eric Betzig at Howard Hughes Medical Institute, Ashburn, U.S.A.; Professor Stefan Hell at Max Planck Institute for Biophysical Chemistry, Gttingen, and the German Cancer Research Center, Heidelberg, Germany; and Professor William Moerner at Stanford University, Stanford, U.S.A., for the development of super-resolved fluorescence microscopy. After the formal announcement, Sven Lidin, chair of the Nobel Chemistry Committee, explained the importance of the new microscopy in chemistry. Because we can see individual macromolecules moving about in a living cell, we can study chemistry at a single-molecule level and in real life. And this is very, very important to chemistry because chemistry has traditionally been about studying a large number of molecules and the effect that they have. Here we can look at a single … Continue reading →

Chemistry Video Solutions for IITJEE Main + Advanced by Top faculty from Kota By: IITJEE Kart … Continue reading →

Discover dancing fluorescent droplets, crystal gardens and watery clouds of chemicals in this new video compilation from BeautifulChemistry.net. Scientists call it CoCl2 in Na2SiO3 Solution. You'll likely just call it "Awesome!" BeautifulChemistry.org Chemistry was always the most visually appealing of the sciences I studied in school. There were all those amazing colors, plus smoke, bubbles and best of all, fire! Turns out, I'm not the only one who found chemistry to be attractive. A collaboration between the Institute of Advanced Technology at the University of Science and Technology of China and Tsinghua University Press has led to the formation of BeautifulChemistry.net, a site whose goal is "to bring the beauty of chemistry to the general public through digital media and technology." To start on the path, the creators "used a 4K UltraHD camera and special lenses to capture chemical reactions in astonishing detail without the distraction of beakers and test tubes." Those reactions are compiled in the following video and are broken into six different categories. You might not understand exactly what the chemical symbols mean in each video, but it helps to get Beautiful Chemistry's take on each category, which we've included below. Or, you can just enjoy the … Continue reading →

PUBLIC RELEASE DATE: 6-Oct-2014 Contact: Laura Zimmermann laura.zimmermann@springer.com 49-622-148-78414 Springer New theoretical physics models could help us better grasp the atmospheric chemistry of ozone depletion. Indeed, understanding photoabsorption of nitrous oxide (N2O) a process which involves the transfer of the energy of a photon to the molecule matters because a small fraction of N2O reacts with oxygen atoms in the stratosphere to produce among others nitric oxide (NO). The latter participates in the catalytic destruction of ozone (O3). Now, new theoretical work unveils the actual dynamic of the photoabsorption of nitrous oxide molecules. These findings by Mohammad Noh Daud from the University of Malaya, Kuala Lumpur in Malaysia, have just been published in EPJ D. The work has led to new calculations of the probability of an absorption process taking place, also referred to as absorption cross section. These calculations confirm experimental results. In this study, the author introduces improvements in an established calculation approach, referred to as the ab initio time-dependent method. It helps calculate the absorption cross section, or spectrum, of nitrous oxide. The advantage of this approach is that it immediately yields the energy dependence of a cross section or spectrum from a single calculation. By taking … Continue reading →

Getting critical about water chemistry with the Triton Method By Ehsan Daskti | MACNA 2014 This talk will focus on the exploration of chemistry and biochemistry of reef and aquarium ecosystems, their links and differences and their applicability to reef aquariums. The presentation... By: BulkReefSupplyCom … Continue reading →

Cas chemistry(3) By: Isacc Brown … Continue reading →

I was always bad at chemistry... - SHERLOCK HOLMES: CRIMES AND PUNISHMENTS - Part 4 but did really well at "not school" "The game takes place in London and its suburbs in the 19th century; it resonates with the Russian novel Crime and Punishment by author Fyodor Dostoyevsky... By: PressHeartToContinue … Continue reading →