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Chemistry



Results 81 - 100 of 497.


Life Sciences - Chemistry - 12.10.2017
Dealing with disaster - when rooted to the spot
When nature turns nasty plants can't run for cover, they have had to evolve to survive what the environment throws at them. Whether that's drought, flooding, saline soils or extreme temperatures, scientists, led by a team at the University of Nottingham , have now discovered that flowering plants have adopted a single biochemical mechanism to sense multiple environmental stresses, that enhances survival.

Chemistry - 29.09.2017
Helium found in coal seams could aid safe shale gas extraction
Natural deposits of helium gas - best known for its use in party balloons - could help aid the safe production of shale or coal gas, research suggests. The discovery of high levels of helium in UK coal seams could help scientists to monitor the secure recovery of coal or shale gas from underground sites.

Health - Chemistry - 27.09.2017
Researchers uncover the source of diabetic pain
Image (left) shows nerve fibres (green) in a normal mouse, while the loss of nerve fibres in a diabetic mouse is clearly visible in the image on the right. Human diabetic patients show a similar loss of nerve fibres and the activity of HCN2 in these fibres is associated with the development of pain.

Chemistry - Physics - 21.09.2017
Scientist proves theory chemists have waited two decades to understand
Groundbreaking research led by Simon Woodward,a professor of synthetic organic chemistry at the University of Nottingham, has proved how a catalyst (a small atomic-sized ‘machine' that knits together new molecules) in organo-copper chemistry works. This is one of the key approaches of modern chemistry to making larger molecules.

Astronomy / Space Science - Chemistry - 13.09.2017
Inferno world with titanium skies
Inferno world with titanium skies
An international team of astronomers has detected titanium oxide in the atmosphere of an exoplanet for the first time. The results provide unique information about the chemical composition and the temperature and pressure structure of the atmosphere of this unusual and very hot world. The clear detection of the molecule is a major observational advancement - it is an exciting time in exoplanetary science.

Physics - Chemistry - 31.07.2017
Formation of porous crystals observed for the first time
Formation of porous crystals observed for the first time
Scientists at the University of Bristol have, for the first time, observed the formation of a crystal gel with particle-level resolution, allowing them to study the conditions by which these new materials form. The study showed that the mechanism of crystal growth follows the same strategies by which ice crystals grow in clouds, an analogy which could improve our understanding of these fundamental processes In addition, this novel mechanism allowed the research team to spontaneously form sponge-like nanoporous crystals in a continuous process.

Chemistry - Astronomy / Space Science - 26.07.2017
Has Cassini found a universal driver for prebiotic chemistry at Titan?
Has Cassini found a universal driver for prebiotic chemistry at Titan?
An important type of molecule that helps produce complex organic material has been detected within Titan's hazy upper atmosphere by a UCL-led team as part of the international Cassini-Huygens mission. In the study, published in Astrophysical Journal Letters , scientists identified negatively charged molecules called 'carbon chain anions' in the atmosphere of Titan, Saturn's largest moon.

Astronomy / Space Science - Chemistry - 04.07.2017
Little Cub gives astronomers rare chance to see galaxy demise
Little Cub gives astronomers rare chance to see galaxy demise
The Little Cub galaxy (circled) which is being stripped of gas by its larger neighbour. Credit: SDSS Collaboration A primitive galaxy that could provide clues about the early Universe has been spotted by astronomers as it begins to be consumed by a gigantic neighbouring galaxy. The Little Cub galaxy - so called because it sits in the Ursa Major or Great Bear constellation - is being stripped of the gas needed to continue forming stars by its larger companion.

Chemistry - Astronomy / Space Science - 04.07.2017
Surprise organic molecule detection paints complex picture of Saturnian moon
Surprise organic molecule detection paints complex picture of Saturnian moon
Scientists reveal the first detection of a molecule from Enceladus with a ground-based telescope, with implications for the search for life. Saturn's moon Enceladus has peaked scientists' interest since water-rich plumes were discovered gushing from around its south pole. The discovery was made by the Cassini spacecraft, which has since flown through the plumes and sampled organic compounds.

Astronomy / Space Science - Chemistry - 08.06.2017
Organic compound found in early stages of star formation
Organic compound found in early stages of star formation
Scientists seeking to understand the origins of life have found a new organic compound in the material from which a star like the Sun is forming. Researchers from Queen Mary University of London (QMUL) are part of a team that have for the first time detected methyl isocyanate (or CH3NCO) in a solar-type protostar, the kind from which our Sun and the Solar System formed.

Earth Sciences - Chemistry - 05.06.2017
Scientists analysing Martian mudstones reveal chemistry of ancient lake in study
Scientists analysing Martian mudstones reveal chemistry of ancient lake in study
Imperial's Professor Sanjeev Gupta talks about the chemistry of rocks on Mars and what they reveal about a lake that has long since dried up. Professor Gupta, from Imperial College London's Department of Earth Science and Engineering , is part of NASA's Curiosity mission. Every day, analyses data on the geology of Mars that is beamed back from the Mars Science Laboratory mission's remote-controlled Curiosity rover.

Life Sciences - Chemistry - 30.05.2017
Just how old are animals?
Just how old are animals?
The origin of animals was one of the most important events in the history of Earth. Beautifully preserved fossil embryos suggest that our oldest ancestors might have existed a little more than half a billion years ago. Yet, fossils are rare, difficult to interpret, and new, older fossils are constantly discovered.

Chemistry - Life Sciences - 23.05.2017
Himalayan powerhouses: how Sherpas have evolved superhuman energy efficiency
Himalayan powerhouses: how Sherpas have evolved superhuman energy efficiency
Sherpas have evolved to become superhuman mountain climbers, extremely efficient at producing the energy to power their bodies even when oxygen is scarce, suggests a new study led by University of Cambridge and UCL researchers, published today in the Proceedings of National Academy of Sciences (PNAS) .

Chemistry - Life Sciences - 19.05.2017
How RNA formed at the origins of life
How RNA formed at the origins of life
A single process for how a group of molecules called nucleotides were made on the early Earth, before life began, has been suggested by a UCL-led team of researchers. Nucleotides are essential to all life on Earth as they form the building blocks of DNA or RNA, and understanding how they were first made is a long-standing challenge that must be resolved to elucidate the origins of life.

Physics - Chemistry - 19.05.2017
Scientists construct a stable one-dimensional metallic material
Scientists construct a stable one-dimensional metallic material
Researchers have developed the world's thinnest metallic nanowire, which could be used to miniaturise many of the electronic components we use every day.  We're just starting to understand the physics and chemistry of these systems. Paulo Medeiros The researchers, from the Universities of Cambridge and Warwick, have developed a wire made from a single string of tellurium atoms, making it a true one-dimensional material.

Astronomy / Space Science - Chemistry - 18.05.2017
Icy ring around young planetary system has similar chemical fingerprint to our solar system
Icy ring around young planetary system has similar chemical fingerprint to our solar system
An international team of astronomers, including researchers from the University of Cambridge, has made the most detailed image of the ring of dusty debris surrounding a young star and found that the ice content of colliding comets within it is similar to comets in our own solar system. The chemical kinship may indicate a similarity in comet formation conditions between the outer reaches of this planetary system and our own.

Life Sciences - Chemistry - 15.05.2017
Female fruit flies become more aggressive towards each other after sex
Female fruit flies become more aggressive towards each other after sex
Chemicals in male fruit flies' semen cause females to become more aggressive and intolerant towards each other after mating, research reveals. Studies in many animal species have shown a direct link between increased levels of aggression in females and reproduction and egg laying. This is thought to be because the females compete more strongly for food to help support the growth of fertilised eggs, and also because they want to protect and provide for their offspring.

Chemistry - Life Sciences - 24.04.2017
Caterpillar found to eat shopping bags, suggesting biodegradable solution to plastic pollution
Caterpillar found to eat shopping bags, suggesting biodegradable solution to plastic pollution
A common insect larva that eats beeswax has been found to break down chemical bonds in the plastic used for packaging and shopping bags at uniquely high speeds. Scientists say the discovery could lead to a biotechnological approach to the polyethylene waste that chokes oceans and landfills.

Health - Chemistry - 13.04.2017
New insights into the molecular processes of immune regulation
New insights into the molecular processes of immune regulation
Researchers from the Department of Pharmacy & Pharmacology have made an important discovery that might lead to novel therapies to combat chronic inflammation. The work, jointly funded by the Biotechnology and Biological Sciences Research Council (BBSRC) and Wellcome Trust, is published in the Journal of Immunology and focuses on so-called danger signals such as reactive oxygen species that are released by damaged or dying cells during wounding or infection, and their impact on the subsequent immune response.

Physics - Chemistry - 28.03.2017
Researchers uncover secret of nanomaterial that makes harvesting sunlight easier
Researchers uncover secret of nanomaterial that makes harvesting sunlight easier
Using sunlight to drive chemical reactions, such as artificial photosynthesis, could soon become much more efficient thanks to nanomaterials. This is the conclusion of a study published today led by researchers in the Department of Physics at Imperial College London, which could ultimately help improve solar energy technologies and be used for new applications, such as using sunlight to break down harmful chemicals.