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Search results for “Metals”

1,000+ results for "Metals"

Quantum physicists crack mystery of 'strange metals,' a new state of matter

Researchers at the Flatiron Institute and Cornell University developed a robust theoretical model of strange metals, revealing their existence as a new state of matter. The model shows that strange metals exhibit properties linked to temperature and fundamental constants, with surprising connections to black holes and high-temperature ...

SourceSimons Foundation·JournalProceedings of the National Academy of Sciences·DateJul 23, 2020

Electrons obey social distancing in 'strange' metals

Electrons in Planckian metals exhibit high-temperature superconductivity due to their desire for social distancing. By adjusting the ratio between kinetic energy and interaction energy, researchers created a model that captures the system's behavior down to absolute zero.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJul 23, 2020

The geological record of mud deposits

Researchers analyzed cores from the Basque Mud Patch to determine sedimentation rates and detect environmental contamination. The study found that metals and contaminants accumulate at an approximate rate of one millimeter per year, highlighting human activity's impact on the coastal area.

SourceUniversity of the Basque Country·JournalQuaternary International·DateJun 26, 2020

Fish fossils become buried treasure

Researchers discovered that ancient fish fossils near Japan hold valuable rare-earth elements, indicating potential new global supply sources. The findings suggest that fish populations were drawn to specific locations due to climate change and underwater geology, resulting in concentrated deposits of these metals.

SourceUniversity of Tokyo·JournalScientific Reports·DateJun 18, 2020

Liquid metals break down organic fuels into ultra-thin graphitic sheets

Researchers at UNSW Sydney synthesized ultra-thin carbon-based materials using liquid metals and organic fuels at room temperature, a first for this method. The ultra-smooth surface of the liquid metals templates atomically-thin carbon-based sheets, which can be used in various applications including battery storage and solar cells.

BESSY II: Experiment shows for the first time in detail how electrolytes become metallic

An international team developed a sophisticated experimental technique at BESSY II to observe the formation of a metallic conduction band in electrolytes. The team analyzed the process using soft X-rays and combined it with theoretical predictions, making this a significant contribution to fundamental understanding.

Tiger snakes tell more about local wetlands' pollution levels

A study by Curtin University found that tiger snakes living in Perth's urban wetlands are accumulating toxic heavy metals in their livers, suggesting habitat contamination. The snakes' bioaccumulation of heavy metals through eating frogs indicates the wetlands' pollution levels are a concern for local biodiversity.

SourceCurtin University·JournalArchives of Environmental Contamination and Toxicology·DateJun 2, 2020

Researchers track how bacteria purge toxic metals

Researchers at Cornell University used single-molecule tracking and protein quantitation to study the mechanism of bacteria's resistance to toxic metals, revealing a complex series of steps that lead to detoxification. The discovery could lead to the development of more effective antibacterial treatments.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateMay 28, 2020

Iron deficiency in corals?

Microalgae in coral cells may compensate with other metals when iron is limited, potentially affecting vital biological functions. Research found that different species of microalgae acquire other trace metals in unique quantities, which could have cascading effects on coral health.

SourcePenn State·JournalCoral Reefs·DateApr 23, 2020

Illuminating the future of renewable energy

A new photosensitizer compound created by West Virginia University researchers has the potential to significantly improve the efficiency of solar panels and other technologies. The compound, made from zirconium, can convert light into electrical energy, making it a more sustainable and cost-effective option for renewable energy.

SourceWest Virginia University·JournalNature Chemistry·DateApr 13, 2020

Metals could be the link to new antibiotics

University of Queensland researchers have discovered 23 metal compounds with antibacterial and antifungal activity, selectively killing bacteria like MRSA but not human cells. The findings offer promise for outwitting bacterial resistance, as the new compounds may use different mechanisms than existing antibiotics.

SourceUniversity of Queensland·JournalChemical Science·DateFeb 26, 2020

Going super small to get super strong metals

Scientists have discovered that ultra-strong metals can be created by reducing grain size to below 10 nanometers, contrary to previous assumptions. The study found that high pressure overcomes grain sliding effects, leading to extreme strengthening in finely grained samples.

SourceUniversity of Utah·JournalNature·DateFeb 24, 2020

E-cigarette users are exposed to potentially harmful levels of metal linked to DNA damage

A recent study by the University of California, Riverside found that e-cigarette users have elevated biomarkers of exposure and potential harm, including zinc excess correlated with oxidative DNA damage. The study highlights the risks of prolonged e-cigarette use and advises physicians to exercise caution when recommending e-cigarettes.

SourceUniversity of California - Riverside·JournalBMJ Open Respiratory Research·DateFeb 20, 2020

A megalibrary of nanoparticles

Researchers at Penn State have developed a method to produce over 65,000 different types of nanoparticles, each containing up to six different materials. This breakthrough allows for the creation of complex particles with precise interfaces, opening up new possibilities for electrical and optical applications.

SourcePenn State·JournalScience·DateJan 23, 2020

No need to dig too deep to find gold!

The study found that the depth of porphyry copper and gold deposits influences their composition, with deeper deposits containing more copper and shallower deposits containing more gold. Over 95% of gold is lost to the atmosphere through volcanic emissions, making it challenging for companies to extract this metal.

SourceUniversité de Genève·JournalNature Communications·DateJan 14, 2020

Bacteria-shredding tech to fight drug-resistant superbugs

Researchers at RMIT University have developed a new technology to destroy bacteria and bacterial biofilm without harming good cells, offering a potential solution to the deadly problem of antibiotic resistance. The technology uses precision-engineered liquid metals to physically rip bacteria to shreds and smash through the biofilm wher...

SourceRMIT University·JournalACS Nano·DateJan 13, 2020

How nodules stay on top at the bottom of the sea

A new study published in Geology reveals that deep-sea nodules remain uncovered due to their association with seafloor fauna, which forages and burrows sediment around them. The findings suggest that the regions where nodules occur are more extensive than previously thought, highlighting potential economic and conservation implications.

SourceGeological Society of America·JournalGeology·DateJan 13, 2020

A response key for survival of Mycoplasma genitalium in the urogenital tract uncovered

A study by the Universitat Autonoma de Barcelona has identified the regulation and metal uptake systems of Mycoplasma genitalium, a sexually transmitted pathogen responsible for genitourinary diseases. The discovery reveals strategies that bacteria use to acquire essential metals for survival, making them a promising therapeutic target.

SourceUniversitat Autonoma de Barcelona·JournalEmerging Microbes & Infections·DateJan 8, 2020

Siberian blue lakes and their inhabitants

The study of two Siberian blue lakes reveals a similarity in zooplankton species composition to other Western Siberian lakes, with species such as cladocerans and copepods dominating. The concentration of heavy metals exceeds sanitary standards, but is characteristic of the region's aquatic ecosystems.