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Breakthrough in air purification with a catalyst that works at room temperature

Nanowerk research news - 11 hours 25 min ago
Turning ammonia into harmless substances using gold nanoparticles on a metal oxide framework.
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Sperm DNA damage may contribute to repeat miscarriages

EurekAlert! Biology - Fri, 2019-03-22 21:00
(The Endocrine Society) Some cases of recurrent pregnancy loss may be caused by sperm DNA damage in the male partner, rather than by a problem in affected women, according to research to be presented Sunday, March 24 at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.
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Improved PCOS symptoms correlate with gut bacterial composition

EurekAlert! Biology - Fri, 2019-03-22 21:00
(The Endocrine Society) Symptoms of polycystic ovary syndrome (PCOS) improved with exposure to healthy bacteria in the gut, according to a study in a mouse model of this common women's endocrine disorder. The study results will be presented Monday at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.
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Breakthrough in air purification with a catalyst that works at room temperature

EurekAlert! Materials - Fri, 2019-03-22 21:00
(Tokyo Metropolitan University) Researchers from Tokyo Metropolitan University have shown that a newly engineered catalyst made of gold nanoparticles supported on a metal oxide framework shows breakdown of ammonia impurities in air, with excellent selectivity for conversion to nitrogen gas. Importantly, it is effective at room temperature, making it suitable for everyday air purification systems. The team successfully identified the mechanism behind this behavior, paving the way towards the design of other novel catalytic materials.
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Key evidence associating hydrophobicity with effective acid catalysis

EurekAlert! Materials - Fri, 2019-03-22 21:00
(Tokyo Metropolitan University) Researchers from Tokyo Metropolitan University have shown that the tunable hydrophobic nature of dense siloxane gels is strongly correlated with their catalytic activity, explicitly demonstrating how molecules with different hydrophobic nature at the molecular level interact differently with surfaces of differing hydrophobicity. This is also the first time a siloxane gel has been shown to be highly effective for the reaction of silyl ethers, commonly used as a protecting agent.
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Breakthrough in air purification with a catalyst that works at room temperature

EurekAlert! Nanotechnology - Fri, 2019-03-22 21:00
(Tokyo Metropolitan University) Researchers from Tokyo Metropolitan University have shown that a newly engineered catalyst made of gold nanoparticles supported on a metal oxide framework shows breakdown of ammonia impurities in air, with excellent selectivity for conversion to nitrogen gas. Importantly, it is effective at room temperature, making it suitable for everyday air purification systems. The team successfully identified the mechanism behind this behavior, paving the way towards the design of other novel catalytic materials.
Categories: News aggregators

Key evidence associating hydrophobicity with effective acid catalysis

EurekAlert! Nanotechnology - Fri, 2019-03-22 21:00
(Tokyo Metropolitan University) Researchers from Tokyo Metropolitan University have shown that the tunable hydrophobic nature of dense siloxane gels is strongly correlated with their catalytic activity, explicitly demonstrating how molecules with different hydrophobic nature at the molecular level interact differently with surfaces of differing hydrophobicity. This is also the first time a siloxane gel has been shown to be highly effective for the reaction of silyl ethers, commonly used as a protecting agent.
Categories: News aggregators

Breakthrough in air purification with a catalyst that works at room temperature

EurekAlert! Biology - Fri, 2019-03-22 21:00
(Tokyo Metropolitan University) Researchers from Tokyo Metropolitan University have shown that a newly engineered catalyst made of gold nanoparticles supported on a metal oxide framework shows breakdown of ammonia impurities in air, with excellent selectivity for conversion to nitrogen gas. Importantly, it is effective at room temperature, making it suitable for everyday air purification systems. The team successfully identified the mechanism behind this behavior, paving the way towards the design of other novel catalytic materials.
Categories: News aggregators

Key evidence associating hydrophobicity with effective acid catalysis

EurekAlert! Biology - Fri, 2019-03-22 21:00
(Tokyo Metropolitan University) Researchers from Tokyo Metropolitan University have shown that the tunable hydrophobic nature of dense siloxane gels is strongly correlated with their catalytic activity, explicitly demonstrating how molecules with different hydrophobic nature at the molecular level interact differently with surfaces of differing hydrophobicity. This is also the first time a siloxane gel has been shown to be highly effective for the reaction of silyl ethers, commonly used as a protecting agent.
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Molecular modeling may accelerate the development of new organic materials for electronics

Nanowerk research news - Fri, 2019-03-22 14:03
Scientists have developed a faster way of creating molecular models by using machine learning. The new models dramatically accelerate the screening of potential new organic materials for electronics and they could also be useful in other areas of materials science research.
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Chemicals induce dipoles to damp plasmons

Nanowerk research news - Fri, 2019-03-22 13:56
A study finds that molecules alter gold nanoparticles' electronic properties.
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Optical tweezers combine with X-rays to enable analysis of crystals in liquids

Nanowerk research news - Fri, 2019-03-22 13:48
Scientists have developed a new technique that combines the power of nanoscale 'tractor beams' with high-powered X-rays, enabling them to position and manipulate crystals in solution that are not in contact with substrates.
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4D-printed materials can be stiff as wood or soft as sponge

Nanowerk research news - Fri, 2019-03-22 02:43
Engineers' unique smart materials change shape as temperatures change.
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Study shows how electricity-eating microbes use electrons to fix carbon dioxide

EurekAlert! Biology - Thu, 2019-03-21 21:00
(Washington University in St. Louis) A Washington University team showed how a phototrophic microbe called Rhodopseudomonas palustris takes up electrons from conductive substances like metal oxides or rust to reduce carbon dioxide.
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Like mountaineers, nerves need expert guidance to find their way

EurekAlert! Materials - Thu, 2019-03-21 21:00
(Salk Institute) Similar to the dozens of Sherpas that guide hikers up treacherous Himalayan mountains to reach a summit, the nervous system relies on elaborate timing and location of guidance cues for neuronal axons--threadlike projections--to successfully reach their destinations in the body. Now, Salk Institute researchers discover how neurons navigate a tricky cellular environment by listening for directions, while simultaneously filtering out inappropriate instructions to avoid getting lost.
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Energy monitor can find electrical failures before they happen

EurekAlert! Materials - Thu, 2019-03-21 21:00
(Massachusetts Institute of Technology) A new system devised by researchers at MIT can monitor the behavior of all electric devices within a building, ship, or factory, determining which ones are in use at any given time and whether any are showing signs of an imminent failure. When tested on a Coast Guard cutter, the system pinpointed a motor with burnt-out wiring that could have led to a serious onboard fire.
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Squishing blood stem cells could facilitate harvest for transplants

EurekAlert! Biology - Thu, 2019-03-21 21:00
(Emory Health Sciences) How deformable cells are, and thus how stiff or squishy they are, plays an important role in retaining blood-forming stem cells in their marrow niches and thus preserving their long-term repopulation capabilities.
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Like mountaineers, nerves need expert guidance to find their way

EurekAlert! Biology - Thu, 2019-03-21 21:00
(Salk Institute) Similar to the dozens of Sherpas that guide hikers up treacherous Himalayan mountains to reach a summit, the nervous system relies on elaborate timing and location of guidance cues for neuronal axons--threadlike projections--to successfully reach their destinations in the body. Now, Salk Institute researchers discover how neurons navigate a tricky cellular environment by listening for directions, while simultaneously filtering out inappropriate instructions to avoid getting lost.
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Anti-TB drugs can increase risk of TB re-infection

EurekAlert! Biology - Thu, 2019-03-21 21:00
(McGill University) Current treatments for tuberculosis (TB) are very effective in controlling TB infection caused by Mycobacterium tuberculosis (Mtb). They don't, however, always prevent reinfection. Why this happens is one of the long-standing questions in TB research. A team of scientists at the Research Institute of the McGill University Health Centre (RI-MUHC) and McGill University may have found the answer... in the gut.
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UAlberta paleontologists report world's biggest Tyrannosaurus rex

EurekAlert! Biology - Thu, 2019-03-21 21:00
(University of Alberta) University of Alberta paleontologists have just reported the world's biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The 13-metre-long T. rex, nicknamed 'Scotty,' lived in prehistoric Saskatchewan 66 million years ago.
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