Current Selenium News and Events

Current Selenium News and Events, Selenium News Articles.
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For selenium in rivers, timing matters
Researchers have gained new insight into an ongoing environmental health problem. (2021-02-23)

RUDN University chemist used iodine to synthesize new chalcogenides
A chemist from RUDN University, working with a group of colleagues, synthesized three new chalcogenides (compounds that contain metals and elements from group 16 of the periodic table). The team suggested an unusual approach to synthesis that was based on iodine. (2021-02-19)

Nanotechnologies reduce friction and improve durability of materials
A team of scientists from the National Research Nuclear University MEPhI and Immanuel Kant Baltic State Federal University suggested using innovative thin films to considerably reduce friction and thus increase the durability of surfaces in mechanisms. This discovery can be important for many fields, from medicine to space technologies. (2021-02-16)

Garlic and selenium increase stress resistance in carps, says a RUDN University biologist
A biologist from RUDN University confirmed that selenium nanoparticles and garlic extract can effectively reduce the negative impact of stress on the health of grass carp in the breeding industry. (2021-02-04)

Surrey's new hybrid X-ray detector goes toe-to-toe with state-of-the-art rivals
A new hybrid X-ray detector developed by the University of Surrey outperforms commercial devices - and could lead to more accurate cancer therapy. (2020-11-26)

Insights on a mechanism to stop COVID-19 replication
Stopping the replication of SARS-CoV-2 is likely possible thanks to a compound called EBSELEN: a group of researchers from the Politecnico di Milano has communicated aspects relevant to the blocking of replication mechanism in the New Journal of Chemistry. (2020-11-19)

Surrey reveals simple method to produce high performing Lithium Selenium batteries
Engineers at the University of Surrey have developed a simple and elegant method of producing high-powered lithium-selenium (Li-Se) batteries. (2020-11-16)

Chemical scissors snip 2D transition metal dichalcogenides into nanoribbon
One of the biggest challenges in making hydrogen production clean and cheap has been finding an alternative catalyst necessary for the chemical reaction that produces the gas, one that is much cheaper and abundant than the very expensive and rare platinum that is currently used. Researchers in Korea have now found a way to 'snip' into tiny nanoribbons a cheap and plentiful substance that fits the bill, boosting its catalytic efficiency to at least that of platinum. (2020-10-29)

Scientists identify promising new ALS drug candidates
Scientists have taken a significant step forward in the search to find effective new drug candidates for the treatment of Amyotrophic lateral sclerosis (ALS), also known as motor neurone disease. (2020-09-01)

Multivitamin, mineral supplement linked to less-severe, shorter-lasting illness symptoms
Older adults who took a daily multivitamin and mineral supplement with zinc and high amounts of vitamin C in a 12-week study experienced sickness for shorter periods and with less severe symptoms than counterparts in a control group receiving a placebo. (2020-08-18)

Wheat and couch grass can extract toxic metals from contaminated soils
Irina Shtangeeva is a researcher at the Department of Soil Science and Soil Ecology, St Petersburg University. She has studied the ability of wheat and couch grass to accumulate toxic substances. Both plants were capable of absorbing various chemical elements from contaminated soils. Although the plants were able to accumulate high concentrations of toxicants, they could survive under negative environmental conditions (2020-08-10)

Tellurium makes the difference
The periodic system contains 118 chemical elements. However, only a few of them are of major importance in our daily lives. An international research group from Germany and Finland discovered astonishing and beautiful molecular structures when they used the element tellurium in ring-shaped hydrocarbon molecules. These compounds are distinguished by the fact that they are arranged in the crystal to form highly symmetrical tubes that interact with each other via the tellurium atoms. (2020-08-06)

Study finds high levels of toxic pollutants in stranded dolphins and whales
Researchers examined toxins in tissue concentrations and pathology data from 83 stranded dolphins and whales from 2012 to 2018. They looked at 11 different animal species to test for 17 different substances. The study is the first to report on concentrations in blubber tissues of stranded cetaceans of atrazine, DEP, NPE and triclosan. It also is the first to report concentrations of toxicants in a white-beaked dolphin and in Gervais' beaked whales. (2020-08-06)

Easy to overdose on paracetamol if you're selenium deficient, says research
A lack of the mineral selenium in the diet puts people at risk of paracetamol overdose, even when the painkiller is taken at levels claimed to be safe on the packaging, according to collaborative research emerging from the University of Bath and Southwest University in China. (2020-08-04)

New biomaterial could shield against harmful radiation
Northwestern University researchers have synthesized a new form of melanin enriched with selenium. Called selenomelanin, this new biomaterial shows extraordinary promise as a shield for human tissue against harmful radiation. (2020-07-08)

Process for 'two-faced' nanomaterials may aid energy, information tech
A team led by the Department of Energy's Oak Ridge National Laboratory used a simple process to implant atoms precisely into the top layers of ultra-thin crystals, yielding two-sided structures with different chemical compositions. The resulting materials, known as Janus structures after the two-faced Roman god, may prove useful in developing energy and information technologies. (2020-06-26)

Tiger snakes tell more about local wetlands' pollution levels
Tiger snakes living in Perth's urban wetlands are accumulating toxic heavy metals in their livers, suggesting that their habitats -- critical, local ecosystems -- are contaminated and the species may be suffering as a result. (2020-06-02)

2D sandwich sees molecules with clarity
A 2D platform of molybdenum, sulfur and selenium is adept at detecting biomolecules via surface-enhanced Raman spectroscopy. Its nonmetallic nature helps by curtailing background noise. (2020-05-14)

Link identified between dietary selenium and outcome of COVID-19 disease
An international team of researchers, led by Professor Margaret Rayman at the University of Surrey, has identified a link between the COVID-19 cure rate and regional selenium status in China. (2020-04-29)

Tandem solar cell world record: New branch in the NREL chart
A special branch in the famous NREL-chart for solar cell world records refers to a newly developed tandem solar cell by HZB teams. The world-record cell combines the semiconductors perovskite and CIGS to a monolithic 'two-terminal' tandem cell. Due to the thin-film technologies used, such tandem cells survive much longer in space and can even be produced on flexible films. The new tandem cell achieves a certified efficiency of 24.16 percent. (2020-04-14)

Stream pollution from mountaintop mining doesn't stay put in the water
Since the 1980s, a mountaintop mine in West Virginia has been leaching selenium into nearby streams at levels deemed unsafe for aquatic life. Now, even though the mine is closed, a Duke University-led study finds high concentrations of selenium in emerging stream insects and the spiders that eat them along the banks, an indication that the contaminant moves from water to land as it moves up the food chain. (2020-04-06)

Antioxidant supplements do not improve male fertility, NIH study suggests
Antioxidant supplements do not improve semen quality among men with infertility, according to a new study supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development . (2020-02-28)

Omega-3 fats do not protect against cancer
Omega-3 fats do not protect against cancer -- according to new University of East Anglia research. Increased consumption of omega-3 fats is widely promoted globally because of a common belief that it will protect against, or even reverse, diseases such as cancer, heart attacks and stroke. But two systematic reviews find that omega-3 supplements may slightly reduce coronary heart disease mortality and events, but slightly increase risk of prostate cancer. Both beneficial and harmful effects are small. (2020-02-28)

Spinal deformities in Sacramento-San Joaquin delta fish linked to toxic mineral selenium
Native fish discovered with spinal deformities in California's Sacramento-San Joaquin Delta in 2011 were exposed to high levels of selenium from their parents and food they ate as juveniles in the San Joaquin River, new research has found. (2020-02-24)

Topological materials outperform through quantum periodic motion
Scientists at the US Department of Energy's Ames Laboratory have discovered that applying vibrational motion in a periodic manner may be the key to preventing dissipations of the desired electron states that would make advanced quantum computing and spintronics possible. (2020-02-18)

Researchers show advance in next-generation lithium metal batteries
A Washington State University research team has developed a way to address a major safety issue with lithium metal batteries - an innovation that could make high-energy batteries more viable for next-generation energy storage. (2020-02-18)

New threads: Nanowires made of tellurium and nanotubes hold promise for wearable tech
Wearable tech requires both strength and flexibility. A new nanowire design -- a boron nitride nanotube (BNNT) filled with tellurium atomic chains -- holds promise for electronics triggered by light and pressure. In collaboration with Purdue University, Washington University and University of Texas at Dallas, Michigan Tech physicists created and tested the new nanowire alongside carbon nanotubes. (2020-02-10)

CIGSe thin-film solar cells: EU Sharc25 project increases efficiency
Thin-film solar cells made of copper, indium, gallium, and selenium (CIGSe) are cost-effective to produce and now achieve efficiencies of significantly more than 20%. This level of performance was achieved through post-processing with alkali elements, and the procedures are suitable for industrial-scale production. Insights into the beneficial effect of these alkali treatments from the EU Sharc25 project have now been collected in an article published in Advanced Energy Materials. (2020-02-05)

Agricultural area residents in danger of inhaling toxic aerosols
Excess selenium from fertilizers and other natural sources can create air pollution that could lead to lung cancer, asthma, and Type 2 diabetes, according to new UC Riverside research. (2020-02-03)

New neutron detector can fit in your pocket
Researchers at Northwestern University and Argonne National Laboratory have developed a new material that opens doors for a new class of neutron detectors. The semiconductor-based detector is highly efficient, stable, and can be used both in small, portable devices for field inspections and very large detectors that use arrays of crystals. (2020-01-15)

It's a small (coal-polluted) world, after all
A study published in Environmental Toxicology and Chemistry underscores that the release of pollutants in one region can have implications beyond its borders; emphasizing the dire need for global collaboration on environmental issues. (2019-12-20)

Antioxidant use during chemotherapy risky for breast cancer patients
Breast cancer patients who take the dietary supplements known as antioxidants, as well as iron, vitamin B12, and omega-3 fatty acids, during chemotherapy may be at increased risk of disease recurrence and death, according to new study results appearing in the Journal of Clinical Oncology. (2019-12-19)

Russian scientists studied the effect of selenium on the properties of basil
Today many agricultural plants are grown using hydroponics, i.e. in artificial soilless environments. The source of nutrients for the plants is a special substrate surrounding their roots. Thanks to this method agriculturists can harvest the plants all year round and control and adjust the conditions of cultivation. (2019-12-12)

Imaging technique gives catalytic 2D material engineering a better view
A scanning electrochemical cell imaging technique shows how nanoscale structural features affect the catalytic activity of MoS2 monolayers for hydrogen evolution reactions, report researchers at Kanazawa University in Angewandte Chemie International Edition. (2019-12-03)

Turning to old remedies for new health challenges
The last thing anyone wants during a stay in the hospital is a hospital-acquired infection. Nosocomial infections, as they are called, are on the rise as more pathogens become resistant to drugs currently available. Kumar Venkitanarayanan, and his team recently published research in the journal Wound Medicine detailing how they are working to change that. (2019-11-21)

Making tiny antennas for wearable electronics
When it comes to electronics, bigger usually isn't better. This is especially true for a new generation of wearable communication systems that promise to connect people, machines and other objects in a wireless 'internet of things.' To make the devices small and comfortable enough to wear, scientists need to miniaturize their components. Now, researchers in ACS Nano have made the tiniest radio-frequency antennas reported yet, with thicknesses of about 1/100 of a human hair. (2019-11-20)

Solving the mystery of quantum light in thin layers
Tungsten diselenide emits light with very special properties. Nobody could tell why -- but now, scientists at TU Wien (Vienna) have solved the riddle: a combination of atomic defects in the material and microscopic distortion is responsible for the remarkable effect. (2019-10-15)

New design strategy can help improve layered superconducting materials
Tokyo, Japan - Scientists from Tokyo Metropolitan University have created a new layered superconducting material with a conducting layer made of bismuth, silver, tin, sulfur and selenium. The conducting layer features four distinct sublayers; by introducing more elements, they were able to achieve unparalleled customizability and a higher ''critical temperature'' below which superconductivity is observed, a key objective of superconductor research. Their design strategy may be applied to engineer new and improved superconducting materials. (2019-10-12)

NUS researchers contribute to a Science paper on high-performance low-cost thermoelectrics
Researchers from the National University of Singapore and Beihang University reported the high-performance SnS thermoelectric crystals combining the desirable features of low-cost, earth-abundant materials and environmental friendliness. For the first time, they discovered the interplay of triple electronic bands leading to the high performance of thermoelectric SnS crystals, which is promoted by Se alloying. Furthermore, Se alloying plays a second important role in lowering the thermal transport. (2019-10-01)

Selenium anchors could improve durability of platinum fuel cell catalysts
Researchers at the Georgia Institute of Technology have developed a new platinum-based catalytic system that is far more durable than traditional commercial systems and has a potentially longer lifespan. The new system could, over the long term, reduce the cost of producing fuel cells. (2019-09-05)

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