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12 resultados carregados na pagina 2 para "chemical"
Catalyst converts CO₂ into high-value industrial chemical at room temperature with record
Catalyst converts CO₂ into high-value industrial chemical at room temperature with record
A research team has developed a highly efficient catalyst that directly converts carbon dioxide—a major contributor to global warming—into high-value industrial 2-propanol. The research was published online in Applied Catalysis B: Environment and Energy.
Calls to ban ‘toxic’ pet flea treatments that harm UK wildlife and environment
Calls to ban ‘toxic’ pet flea treatments that harm UK wildlife and environment
Over-the-counter treatments for cats and dogs contain chemicals that are banned in pesticides and pollute waterwaysOver-the-counter flea treatment for cats and dogs should be banned as millions of hazardous chemicals are unnecessarily applied to UK pets each year, a parliamentary
Two deadly flowers could inspire powerful new medicines
Two deadly flowers could inspire powerful new medicines
Scientists have figured out how two famously poisonous plants create chemicals with surprising medical potential. After tracking thousands of genes in wolfsbane and larkspur, they identified six enzymes needed to build a complex compound called atisinium. The team recreated the p
Foto: Malcoln Oliveira / Pexels
Metal deposits reveal how ice ages reshaped oxygen levels across Earth's oceans
Earth's oceans repeatedly lost oxygen and produced metal deposits during the planet's deepest ice ages. An international team of researchers analyzed manganese and other chemical signatures preserved in more than 27,000 ancient seafloor samples collected from six continents.
A new take on interpreting chemical bond analysis in solids
A new take on interpreting chemical bond analysis in solids
Researchers from Skoltech, SberUniversity, the M.N. Mikheev Institute of Metal Physics of UB RAS and Ural Federal University have published a review of a novel approach to interpreting chemical bonding in solids. The method not only describes crystals in terms of precise calculat
World’s most-used weedkiller disrupts honeybee brains
World’s most-used weedkiller disrupts honeybee brains
Glyphosate was long thought to be safe for honeybees because they lack the enzyme the chemical targets in weeds. However, researchers found that exposed bees foraged 13 percent less after only three days and showed changes in brain chemicals linked to behavior. Across a whole hiv
New membrane accelerates purification of industrial solvents
New membrane accelerates purification of industrial solvents
Researchers from the Department of Chemical Engineering, working with an international team led by KU Leuven, have developed a membrane technology to improve the efficiency of purifying widely used solvents.
New catalyst design selectively suppresses competing hydrogen reaction in ammonia synthesi
New catalyst design selectively suppresses competing hydrogen reaction in ammonia synthesi
A research team led by professor Yousung Jung from the Department of Chemical and Biological Engineering at Seoul National University College of Engineering has developed a new catalyst design principle that suppresses the hydrogen evolution reaction, which interferes with ammoni
Creating cleaner chemical reactions that run on oxygen and produce only water as waste
Creating cleaner chemical reactions that run on oxygen and produce only water as waste
Oxygen provides the driving force for many vital chemical reactions. Two well-known examples include respiration, the process that allows living things to break down food to release its energy, and combustion, reactions that produce heat and light. But oxygen has an unusual elect
Chemists set electrons free and break a decades-old chemistry barrier
Chemists set electrons free and break a decades-old chemistry barrier
Chemists have developed a catalyst that breaks a long-standing rule governing which molecules receive electrons during chemical reactions. By releasing electrons directly into solution, the technique could unlock reactions—and potentially useful new molecules—that were previously
Foto: Altaf Shah / Pexels
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Lancashire chemicals factory facing potential legal claim announces closure
More than 90 residents have expressed interest in contamination claim against AGC Chemicals EuropeA Pfas factory in Lancashire has announced plans to close down, just days after the Guardian revealed that more than 90 residents have signed up to be involved in a potential legal claim over contamination of the local area.AGC Chemicals Europe Ltd is consulting with employees and their union representatives about plans to cease operations at its manufacturing plant in Thornton-Cleveleys,
Foto: Brett Sayles / Pexels
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Trump officials accused of stacking top chemical safety board with industry ‘mouthpieces’
Public health advocates warn of conflicts of interests and say panel likely to provide justification for key rollbacksThe Trump administration has stacked a top chemical safety board with industry-aligned scientists who have a range of financial conflicts of interest and stand to profit from deregulation, public health advocates say.The Environmental Protection Agency’s science advisory committee on chemicals (SACC) is slated to review research for dozens of toxic chemicals during the