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Chemical ‘fingerprint’ : An electronic rescue dog
Smallest and cheapest equipment for detecting people by smell have recently been developed by a group of scientists. The measuring device are small and extremely sensitive gas sensorsfor acetone, ammonia, and isoprene which are now combined with two commercial sensors for CO2 and moisture.
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Theoretical and Experimental Investigation on Granulation Processes of Powdered Materials in Cylindrical Granulator
The problems of experimental and theoretical investigation and analysis of granulometric composition of granules in granulation processes of powdered superphosphates in drum apparatus are considered. The theoretical investigation has been constructed on analytical decision of Fokker-Planck stochastic equation defining evolution of the distribution function of granules on sizes.
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Disordered proteins forming tight complexes…..
In a recent study by a group of scientists, it has been observed that disordered and unstructured proteins uses charge complementarity to form a tight complex that has biologically useful kinetic properties. Using a combination of nuclear magnetic resonance (NMR) spectroscopy, single-molecule fluorescence techniques and complementary computational approaches, the authors show that both proteins remain highly flexible in the complex. This implies that complex formation does not depend on the existence of specific binding sites in each of the proteins — instead; interactions are distributed widely over regions of opposite charge. Contact us at: chemicalengineer@chemistryjournals.org
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Photocatalytic conversion of water for artificial photosynthesis
The synthesis of a macroscopic aerogel from carbonitride nanomaterials which is an excellent catalyst for the water-splitting reaction under visible-light irradiation. Melamine can be polymerized with formaldehyde to give a highly durable and light resin, but it can also condensed to form nanostructures of carbonitride materials. The chemical and physical characteristics from the nano- to the macroscale, they have created a new lightweight material with excellent catalytic prospects.
chemicalengineer@chemiatryjournals.org @Chemistry and Applied Chemical Engineering
Ever heard of Gold nuggets ….Here is all you need to know about producing “Gold”
Bacterium C. metallidurans, has been shown to found a way to produce tiny gold nuggets by digesting toxic metals. These bacterium species have the ability to extract valuable trace metals from heavy metal compounds without poising itself but releases tiny gold nuggets as a side effect of heavy metal digestion. On coming in contact with copper or gold these bacterial species convert high concentration heavy metal into the form that is consumable and later released in the form of nuggets only a few nanometers in size.
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@Chemistry and Applied Chemical Engineering
lanthanum–cobalt–silicon (LaCoSi) a breakthrough in small scale ammonia production
Lanthanum–cobalt catalyst can break nitrogen- nitrogen triple bond at ambient temperature and mild conditions which could help in low cost nitrogen synthesis. The cobalt rich catalyst allows it to break stable bonds like H2 and N2 leading to the production of nitrogen. As ammonia is important ingredient for fertilizers this low pressure ammonia production could help cut fertilizer energy cost.
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@Chemistry and Applied Chemical Engineering
A new biodegradable plastic using Uranium: Never Known before reaction
Uranium known for its association with nuclear power, has been seen in process catalysis reaction in a latest research. Uranium could combine aspects of the two types of metals it neighbors’, giving rise to the development of new materials and compounds. Development work like this really could pave the way for new medicines and also the creation of truly biodegradable hard plastic. This could end being a solution to what many see as the environmental crisis of plastic waste, something that many scientific leaders are aiming to tackle.
Green Chemistry : a secret to cleaner chemistry and environment
Sustainability has become increasingly important in every industry and chemistry is no different , which has led to the emergence of green chemistry that prioritize minimizing environmental impact of chemical industry on environment by shifting to renewable energy resources , eliminating toxic water and most importantly making chemical reactions more efficient thus reducing harmful byproducts.
chemicalengineer@chemiatryjournals.org
@Chemistry and Applied Chemical Engineering
Melting Ice Could Mess Up Deep-Sea Chemistry
Thawing glaciers may speed up acidification of ocean water. The threat of ocean acidification has drawn increasing attention in recent years. The ocean absorbs a substantial amount of the carbon dioxide that humans emit into the atmosphere—and when carbon dioxide goes into the sea, a chemical reaction occurs that causes the water to become more acidic. Because humans are still emitting about 40 billion tons of carbon dioxide into the atmosphere each year, ocean absorption of greenhouse gases from the air remains the primary concern about acidification. This process mainly affects the water close to the surface, where the gases are actually being absorbed and could speed up the acidification of the deep seas. That’s a big concern for marine biologists, as research suggests that the decreasing pH levels could disrupt the ability of corals, mollusks and other marine organisms to build the hard outer shells they need to survive.
Longest Ever Graphene Ribbon Made Using Iterative Synthesis
An iterative process has been used by chemists to synthesise the longest graphene nanoribbon to date, consisting of 30 linearly fused aromatic rings with a length of 7.7nm. A group of chemists has developed a novel Lego-like methodology for the preparation of monodisperse nitrogen-doped nanoribbons. Using two distinct molecular building blocks and a series of iterative deprotection and condensation reactions, researchers managed to precisely synthesise a series of nanoribbons formed by 10, 20, and 30 linearly fused aromatic rings, with respective lengths of 2.9nm, 5.3nm and 7.7nm. All three are soluble in chlorinated solvents, and could therefore be purified using flash chromatography and characterised by NMR at room temperature.
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