Results 21 - 40 of 492.

Earth Sciences - Chemistry - 10.08.2018
Ice sheets of the last ice age seeded the ocean with silica
Ice sheets of the last ice age seeded the ocean with silica
10 August 2018 New research led by glaciologists and isotope geochemists from the University of Bristol has found that melting ice sheets provide the surrounding oceans with the essential nutrient silica. Silica is needed by a group of marine algae (the microscopic plants of the oceans) called diatoms, who use it to build their glassy cell walls (known as frustules).

Physics - Chemistry - 09.08.2018
Surprise slow electrons are produced when intense lasers hit clusters of atoms
Surprise slow electrons are produced when intense lasers hit clusters of atoms
Scientists found that relatively slow electrons are produced when intense lasers interact with small clusters of atoms, upturning current theories. Intense laser cluster interactions occur when small clusters of atoms, nanometres (billionths of a metre) in size, are struck with intense lasers. This happens, for example, when imaging biomedical samples on ultrafast timescales.

Earth Sciences - Chemistry - 06.08.2018
Size matters: if you are a bubble of volcanic gas
Size matters: if you are a bubble of volcanic gas
The chemical composition of gases emitted from volcanoes - which are used to monitor changes in volcanic activity - can change depending on the size of gas bubbles rising to the surface, and relate to the way in which they erupt. The results , published Geoscience, could be used to improve the forecasting of threats posed by certain volcanoes. At first, we couldn't understand how the gases could emerge much colder than the molten lava sloshing in the lake.

Astronomy / Space Science - Chemistry - 01.08.2018
Scientists identify exoplanets where life could develop as it did on Earth
Scientists identify exoplanets where life could develop as it did on Earth
Scientists have identified a group of planets outside our solar system where the same chemical conditions that may have led to life on Earth exist. This work brings us just a little bit closer to addressing the question of whether we are alone in the universe. Paul Rimmer The researchers, from the University of Cambridge and the Medical Research Council Laboratory of Molecular Biology (MRC LMB), found that the chances for life to develop on the surface of a rocky planet like Earth are connected to the type and strength of light given off by its host star.

Chemistry - Physics - 25.07.2018
New class of materials could be used to make batteries that charge faster
Researchers have identified a group of materials that could be used to make even higher power batteries. The researchers, from the University of Cambridge, used materials with a complex crystalline structure and found that lithium ions move through them at rates that far exceed those of typical electrode materials, which equates to a much faster-charging battery.

Health - Chemistry - 24.07.2018
Breath test could diagnose pancreatic cancer at an earlier stage
A breath test can detect pancreatic cancer and could mean the disease can be diagnosed at an earlier stage for the first time, say researchers. The test has produced encouraging results in a clinical study and will now be tested in a larger multicentre trial at Imperial College Healthcare NHS Trust and five other London hospitals from October.

Chemistry - Computer Science / Telecom - 18.07.2018
Robot chemist discovers new molecules and reactions
Robot chemist discovers new molecules and reactions
A new type of artificial-intelligence-driven chemistry could revolutionise the way molecules are discovered, scientists claim. In a new paper published today in the journal Nature , chemists from the University of Glasgow discuss how they have trained an artificially-intelligent organic chemical synthesis robot to automatically explore a very large number of chemical reactions.

Innovation / Technology - Chemistry - 17.07.2018
World-first green energy pilot
World-first green energy pilot
Researchers from Cardiff University are piloting a new system that uses ammonia as an energy storage solution. A 1.5m ‘world-first' proof-of-concept demonstrator has been opened at the Rutherford Appleton Laboratory in Harwell, Oxfordshire to test the next-generation technology. Its aim is to create a brand new sustainable system that can generate and use power when required, whilst efficiently storing energy in the form of ammonia when the demand for, or price, of electricity is low.

Astronomy / Space Science - Chemistry - 03.07.2018
Molecular oxygen in comet’s atmosphere not created on its surface
Scientists have found that molecular oxygen around a comet is not produced on its surface, as some suggested, but may be from its body. The European Space Agency's Rosetta spacecraft escorted comet 67P/Churyumov-Gerasimenko on its journey around the sun from August 2014 - September 2016, dropping a probe and eventually crashing onto its surface.

Chemistry - Physics - 02.07.2018
New drug and material discoveries to be untangled in VR
Scientists at the University of Bristol have developed new virtual reality (VR) cloud-based tools to help academics and industry progress new drugs, materials and boost the teaching of chemistry. A joint team of computer science and chemistry researchers, in collaboration with developers at Bristol based start-up Interactive Scientific and Oracle Corporation, have used Oracle's public cloud infrastructure to combine real-time molecular simulations with the latest virtual reality technology.

Chemistry - History / Archeology - 27.06.2018
Proof Positive: Craft Beer is a thing of the Past
Proof Positive: Craft Beer is a thing of the Past
University of Glasgow research identifies barley beer in Bronze Age Mesopotamian drinking vessels People living some 3500 years ago in Mesopotamia, which now is modern-day Iraq, enjoyed a pint as much as we do today.

Chemistry - Life Sciences - 25.06.2018
New enzyme boost could hasten biofuel production
Imperial scientists have enhanced the process of using biology to make products such as fuels, plastics, medicines, and cosmetics. This could lead to cheaper and more environmentally friendly biofuel production and more efficient plastic recycling. Bioprocessing, which uses living cells or their components to make products like biofuels, plastics, medicines, and cosmetics, is time consuming and expensive.

Chemistry - Physics - 19.06.2018
Game-changing finding pushes 3D printing to the molecular limit
New University of Nottingham research proves that advanced materials containing molecules that switch states in response to environmental stimuli such as light can be fabricated using 3D printing. The study findings have the potential to vastly increase the functional capabilities of 3D-printed devices for industries such as electronics, healthcare and quantum computing.

Physics - Chemistry - 19.06.2018
Nano-scale ’vibrational wave’ research could revolutionise super materials
A new Oxford University research collaboration could transform the design and development of a number of next generation materials, including thermoelectrics, which are used in products that support everyday life, capturing waste heat and recycling it into electricity. A new Oxford University research collaboration could transform the design and development of a number of next generation materials, including thermoelectrics.

Chemistry - Physics - 15.06.2018
New ID pictures of conducting polymers discover a surprise ABBA fan
First ever detailed pictures of conjugated polymers - which conduct electricity and are highly sought after - captured with a novel visualisation technique developed by University of Warwick New approach realises Richard Feynman's famous remark that it would be very easy to make an analysis of any complicated chemical substance; all one would have to do would be to look at it and see where the atoms are" Polymers need alternating pattern of "A"

Life Sciences - Chemistry - 15.06.2018
New type of photosynthesis discovered
The discovery changes our understanding of the basic mechanism of photosynthesis and should rewrite the textbooks. It will also tailor the way we hunt for alien life and provide insights into how we could engineer more efficient crops that take advantage of longer wavelengths of light. The new form of photosynthesis made us rethink what we thought was possible.

Health - Chemistry - 07.06.2018
Novel molecular designs unlock therapeutic potential of nicotine receptors
Novel molecular designs unlock therapeutic potential of nicotine receptors
Seven million people die each year from smoking related diseases, according to the World Health Organisation, with the annual death toll expected to rise to eight million by 2030. Despite a WHO target to phase out tobacco usage by 2040, smoking remains one of the biggest global public health problems, with low to middle income countries accounting for around 80 per cent of the world's estimated 1.1 billion smokers.

Life Sciences - Chemistry - 04.06.2018
Self-sustaining loop of chemical reactions could revolutionise drug production
Experts from the University of Nottingham have created a self-sustaining circuit of reactions which is a greener and more efficient method of chemical production. In their paper Self-sustaining closed-loop multienzyme mediated conversion of amines into alcohols in continuous reactions Drs Francesca Paradisi and Martina Contente of the University of Nottingham produce chemicals more efficiently through a looped set of reactions using enzymes in flow.

Astronomy / Space Science - Chemistry - 04.06.2018
Globular clusters 4 billion years younger than previously thought
Once thought to be formed soon after the Universe itself, new research finds Globular Clusters may be only around 9 billion years old Globular clusters age revised following research into the age of binary star systems within the clusters, with both thought to have been born at the same time Findings may change understanding of how the Milky Way and similar galaxies formed, with well over 100 Globular Clusters known to exist within the galaxy Ne

Physics - Chemistry - 01.06.2018
Atomically thin nanowires convert heat to electricity more efficiently
Heat can be converted to electricity more efficiently using nanowires as thin as atoms, according to new University of Warwick research Atomically thin nanowires conduct less heat and more electricity at the same time, yielding unprecedented conversion efficiency in comparison to the same bulk material Research opens up future routes into renewable energy from heat-to-electricity conversion Waste heat can be converted to electricity more efficie