Popular Ions News and Current Events

Popular Ions News and Current Events, Ions News Articles.
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Bio-fuel from waste
Fuel from waste? It is possible. But hitherto, converting organic waste to fuel has not been economically viable. Excessively high temperatures and too much energy are required. Using a novel catalyst concept, researchers at the Technical University of Munich (TUM) have now managed to significantly reduce the temperature and energy requirements of a key step in the chemical process. The trick: The reaction takes place in very confined spaces inside zeolite crystals. (2017-06-28)

New material is next step toward stable high-voltage long-life solid-state batteries
A team of researchers designed and manufactured a new sodium-ion conductor for solid-state sodium-ion batteries that is stable when incorporated into higher-voltage oxide cathodes. This new solid electrolyte could dramatically improve the efficiency and lifespan of this class of batteries. A proof of concept battery built with the new material lasted over 1000 cycles while retaining 89.3% of its capacity--a performance unmatched by other solid-state sodium batteries to date. (2021-02-23)

Molecular switch detects metals in the environment
A team led by researchers from the University of Geneva, Switzerland, has designed a family of molecules capable of binding to metal ions present in its environment and providing an easily detectable light signal during binding. This new type of sensor forms a 3D structure whose molecules consist of a ring and two luminescent arms that emit a particular type of light in a process called circular polarized luminescence, and detect ions, such as sodium. (2018-08-15)

Doped photovoltaics
Organic solar cells are made of cheap and abundant materials, but their efficiency and stability still lag behind those of silicon-based solar cells. A Chinese-German team of scientists has found a way to enhance the electric conductivity of organic solar cells, which increases their performances. Doping the metal oxide interlayer, which connected the electrode and active layer, with a modified organic dye boosted both the efficiency and stability, the study published in the journal Angewandte Chemie revealed. (2019-08-16)

Enhanced glow
Tumor cells circulating in blood are markers for the early detection and prognosis of cancer. However, detection of these cells is challenging because of their scarcity. In the journal Angewandte Chemie, scientists have now introduced an ultrasensitive method for the direct detection of circulating tumor cells in blood samples. It is based on the amplified, time-resolved fluorescence measurement of luminescent lanthanide ions released from nanoparticles that bind specifically to tumor cells. (2019-08-07)

'Workhorse' lithium battery could be more powerful thanks to new design
Cornell University chemical engineering professor Lynden Archer believes there needs to be a battery technology 'revolution' -- and thinks that his lab has fired one of the first shots. (2018-06-25)

Researchers discover efficient and sustainable way to filter salt and metal ions from water
With two billion people worldwide lacking access to clean and safe drinking water, joint research by Monash University, CSIRO and the University of Texas at Austin published today in Sciences Advances may offer a breakthrough new solution. (2018-02-09)

New approach to wound healing may be easy on skin, but hard on bacteria
In a presentation today to the American Chemical Society meeting, Ankit Agarwal, a postdoctoral researcher at the University of Wisconsin-Madison, described an experimental approach to wound healing that could take advantage of silver's antibacterial properties, while sidestepping the damage silver can cause to cells needed for healing. (2009-08-19)

Record high photoconductivity for new metal-organic framework material
An international team of scientists, from the University of Surrey, University of São Paulo (Brazil), the University of Warwick and the University of Grenoble-Alpes (France), has created a new metal-organic framework (MOF) that has shown record-high photo-conductivity levels for a material of its type. (2017-12-15)

Scientists discover path to improving game-changing battery electrode
Researchers from Stanford University, two Department of Energy national labs and the battery manufacturer Samsung created a comprehensive picture of how the same chemical processes that give cathodes their high capacity are also linked to changes in atomic structure that sap performance. (2017-12-12)

Structure of electrolyte controls battery performance
The research team at the Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology has reported that adding water into electrolyte improves the function of vanadium oxide, which is one of positive electrode material in calcium-ion batteries. The results of the present study indicate that this phenomenon is caused by changes in the electrolyte structure. (2018-12-04)

Breaking up amino acids with radiation
A new experimental and theoretical study published in EPJ D has shown how the ions formed when electrons collide with one amino acid, glutamine, differ according to the energy of the colliding electrons. This has implications for improving radiotherapy for cancer and understanding the origin of life. (2020-02-05)

New lithium collection method could boost global supply
With continual technological advancements in mobile devices and electric cars, the global demand for lithium has quickly outpaced the rate at which it can be mined or recycled, but a University of Texas at Austin professor and his research team may have a solution. (2018-02-09)

Scientists win a gold metal for liquid behavior
Researchers at University of Tokyo's Institute of Industrial Science report the first direct observation of atoms moving in liquid by collaborating with National Institute of Materials Science. Using scanning transmission electron microscopy, they find that gold ions diffuse through ionic liquid by a phenomenon they describe as a 'cage-jump.' Image analysis determined the diffusion coefficient and activation energy of the diffusion. Quantification of liquid at the atomic level is expected to contribute to the design of energy efficient devices. (2017-12-15)

Superconductivity can induce magnetism
Researchers from the Université de Montréal, the Paul Scherrer Institute, the Swiss Federal Institute of Technology Zurich, and the Los Alamos National Laboratory publish their results in the prestigious journal Science. (2008-09-11)

How do neural support cells affect nerve function?
Glial cells may modulate the release of neurotransmitters -- chemicals that relay signals between nerve cells -- by increasing the acidity of the extracellular environment. (2018-02-21)

Super-adsorbent MOF captures twice its weight in water
Material chemists in the Kingdom of Saudi Arabia have developed a superporous solid made up of a patchwork of metal ions and organic linkers (a metal-organic framework, or MOF) that can suck up to 200 percent of its own weight in atmospheric moisture. The technology, presented Jan. 11 in the journal Chem, could be applied to regulating humidity levels, particularly in confined environments such as aircraft cabins and air-conditioned buildings. (2018-01-11)

Researchers find ways to impede progress of neurodegenerative diseases
As the paper posits, there is currently no doubt that hyperpolarization of mitochondria and concomitant oxidative stress are associated with the development of serious pathologies, such as Parkinson's disease, Alzheimer's disease, autoimmune syndromes, some cancers, and other conditions. Hyperpolarized mitochondria have an elevated transmembrane potential because of the excess of H+ ions in the intermembrane space in comparison with the matrix (pH 8). (2018-03-30)

Cholera pathogen reveals how bacteria generate energy to live
Researchers at Rensselaer Polytechnic Institute have discovered new details about how bacteria generate energy to live. In two recently published papers, the scientists add key specifics to the molecular mechanism behind the pathogen that causes cholera. The work could provide a better understanding of this pathogen, while also offering insight into how cells transform energy from the environment into the forms required to sustain life. (2007-01-29)

Just squeeze in -- when spaces are tight, nature loosens its laws
It turns out that when they're in a hurry and space is limited, ions, like people, will find a way to cram in -- even if that means defying nature's norms. Recently published research from an international team of scientists, including Drexel University's Yury Gogotsi, PhD, shows that the charged particles will actually forgo their 'opposites attract' behavior, called Coulombic ordering, when confined in the tiny pores of a nanomaterial. (2017-09-18)

Kazan University puts forth ideas on the nature of dark matter
As we currently know, dark energy and dark matter comprise 96 percent of the total mass of the Universe. Two main hypotheses about the nature of dark matter are presently debated. One of them posits that dark matter consists of massive compact halo objects, the other ascribes this property to weakly interacting mass particles. (2019-02-05)

Better cathode materials for lithium-sulphur-batteries
A team at the Helmholtz-Zentrum Berlin (HZB) has for the first time fabricated a nanomaterial made from nanoparticles of a titanium oxide compound (Ti4O7) that is characterized by an extremely large surface area, and tested it as a cathode material in lithium-sulphur batteries. The highly porous nanomaterial possesses high storage capacity that remains nearly constant over many charging cycles. (2017-05-17)

Graphene oxide nanosheets could help bring lithium-metal batteries to market
A nanosheet helps prevent formation of lithium dendrites in lithium-metal batteries. (2018-03-15)

Communication via calcium wave
The hormone auxin is a key regulator of plant growth and development. But how it sets these processes in motion has been unclear. Scientists from the University of Würzburg have now uncovered central details. (2018-03-28)

Cation-mixing induced highly efficient sodium storage for layered cathodes
Aiming at solving the structural arrangement for layered sodium storage cathodes, Haoshen Zhou and Shaohua Guo's group from Nanjing University subtly introduced the cation-mixing into sodium layers to give rise to 'pinning effect,' thereby greatly stabilizing the layered framework for highly efficient sodium storage. The research results were recently reported in Science Bulletin as a cover story. (2018-04-03)

Tiny probe could produce big improvements in batteries and fuel cells
The key to needed improvements in the quest for better batteries and fuels cells likely lies in the nanoscale, a realm so tiny that the movement of a few atoms or molecules can shift the landscape. A team of American and Chinese researchers has built a new window into this world to help scientists better understand how batteries really work. They describe their nanoscale probe in the Journal of Applied Physics. (2016-05-31)

A new law to accurately measure charged macromolecules
Measuring the size and diffusion properties of large molecules using dynamic light-scattering techniques and the Stokes-Einstein formula has been mostly straightforward for decades, but it doesn't work when they carry an electric charge. Now Murugappan Muthukumar at UMass Amherst has derived a solution to the 40-year dilemma, proposing a new theory that is allowing polymer chemists, engineers and biochemists for the first time to successfully apply the Stokes-Einstein law governing situations with charged macromolecules. (2016-10-24)

NASA's MAVEN reveals Mars has metal in its atmosphere
Mars has electrically charged metal atoms (ions) high in its atmosphere, according to new results from NASA's MAVEN spacecraft. The metal ions can reveal previously invisible activity in the mysterious electrically charged upper atmosphere (ionosphere) of Mars. (2017-04-10)

Chirping is welcome in birds but not in fusion devices
Article describes cause of chirping that signals loss of heat from fusion reactions. (2018-03-16)

New med-tech zinc sensor developed
A new zinc sensor has been developed by researchers, which will allow for a deeper understanding of the dynamic roles that metal ions play in regulating health and disease in the living body. The research, published in the journal ACS Omega reports that the newly designed chemical sensor can detect and measure zinc levels in cells. It also has the functionality and portability to take continuous or repeated measurements within a single biological sample. (2017-09-29)

Error-free into the quantum computer age
A study led by physicists at Swansea University in Wales, carried out by an international team of researchers and published in the journal Physical Review X shows that ion-trap technologies available today are suitable for building large-scale quantum computers. The scientists introduce trapped-ion quantum error correction protocols that detect and correct processing errors. (2017-12-15)

New device uses biochemistry techniques to detect rare radioactive decays
UTA researchers are now taking advantage of a biochemistry technique that uses fluorescence to detect ions to identify the product of a radioactive decay called neutrinoless double-beta decay that would demonstrate that the neutrino is its own antiparticle. (2018-03-27)

Particle collision in large accelerators is simulated by using a quantum computer
In 2011 the UPV/EHU's QUTIS Group published in the Physical Review Letters an innovative theoretical proposal to reproduce particle collisions like those taking place in large accelerators but without having to use these huge infrastructures. Now, with the collaboration of the laboratory of Prof Kihwan Kim of the University of Tsinghua in Beijing they have confirmed the validity of the proposal by using a trapped-ion quantum simulator. This has been reported in Nature Communications. (2018-01-26)

Step towards better 'beyond lithium' batteries
A step towards new 'beyond lithium' rechargeable batteries with superior performance has been made by researchers at the University of Bath. (2017-09-18)

Radiation that knocks electrons out and down, one after another
Researchers at Japan's Tohoku University are investigating novel ways by which electrons are knocked out of matter. Their research could have implications for radiation therapy. (2016-12-06)

Better contrast agents based on nanoparticles
Scientists at the University of Basel have developed nanoparticles which can serve as efficient contrast agents for magnetic resonance imaging. This new type of nanoparticles produce around ten times more contrast than the actual contrast agents and are responsive to specific environments. The journal Chemical Communications has published these results. (2016-08-03)

Gold standards for nanoparticles
KAUST researchers reveal how small organic 'citrate' ions can stabilize gold nanoparticles, assisting research on the structures' potential. (2017-03-28)

Clarifying how lithium ions ferry around in rechargeable batteries
IBS scientists observe the real-time ultrafast bonding of lithium ions with the solvents, in the same process that happens during charging and discharging of lithium batteries, and conclude that a new theory is needed. (2017-03-27)

Where does laser energy go after being fired into plasma?
An outstanding conundrum on what happens to the laser energy after beams are fired into plasma has been solved in newly-published research at the University of Strathclyde. (2017-03-23)

Scientists pinpoint how ocean acidification weakens coral skeletons
The rising acidity of the oceans threatens coral reefs by making it harder for corals to build their skeletons. A new study identifies the details of how ocean acidification affects coral skeletons, allowing scientists to predict more precisely where corals will be more vulnerable. (2018-01-29)

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