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Categories: Chemistry: General, Offbeat: Space

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Chemistry: General Engineering: Nanotechnology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Physics: Optics
Published

A self-cleaning wall paint      (via sciencedaily.com)     Original source 

Beautiful white wall paint does not stay beautiful and white forever. Often, various substances from the air accumulate on its surface. This can be a desired effect because it makes the air cleaner for a while -- but over time, the color changes and needs to be renewed. Now, special titanium oxide nanoparticles have been developed that can be added to ordinary, commercially available wall paint to establish self-cleaning power: The nanoparticles are photocatalytically active, they can use sunlight not only to bind substances from the air, but also to decompose them afterwards.

Chemistry: General Energy: Batteries Energy: Technology
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New all-liquid iron flow battery for grid energy storage      (via sciencedaily.com)     Original source 

A new iron-based aqueous flow battery shows promise for grid energy storage applications.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Astronomers discover 49 new galaxies in under three hours      (via sciencedaily.com)     Original source 

New work aimed to study the star-forming gas in a single radio galaxy. Although the team didn't find any star-forming gas in the galaxy they were studying, they instead discovered other galaxies while inspecting the data. In total, the gas of 49 galaxies was detected.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

James Webb Space Telescope captures the end of planet formation      (via sciencedaily.com)     Original source 

How much time do planets have to form from a swirling disk of gas and dust around a star? A new study gives scientists a better idea of how our own solar system came to be.

Chemistry: General
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A reliable and efficient computational method for finding transition states in chemical reactions      (via sciencedaily.com)     Original source 

A computational method for finding transition states in chemical reactions, greatly reducing computational costs with high reliability, has been devised. Compared to the most widely used existing method, the present method reduces the total computational cost by approximately 50 to 70%. The development, available on GitHub, is poised to accelerate advancements in material science, making the exploration of chemical reactions more accessible and efficient.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Major environmental benefits recycling gold with biodiesel      (via sciencedaily.com)     Original source 

Researchers have developed an environmentally friendly method for recycling and purifying metals. Using gold earrings from a pawnshop in Gothenburg and biodiesel from the nearest filling station, the discovery could change an industry that is currently dependent on large amounts of fossil oil.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Marine Biology: Microbiology Offbeat: General Offbeat: Plants and Animals Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
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Signs of life would be detectable in single ice grain emitted from extraterrestrial moons      (via sciencedaily.com)     Original source 

Could life be found in frozen sea spray from moons orbiting Saturn or Jupiter? New research finds that life can be detected in a single ice grain containing one bacterial cell or portions of a cell. The results suggest that if life similar to that on Earth exists on these planetary bodies, that this life should be detectable by instruments launching in the fall.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Say hello to biodegradable microplastics      (via sciencedaily.com)     Original source 

Finding viable alternatives to traditional petroleum-based plastics and microplastics has never been more important. New research shows that their plant-based polymers biodegrade -- even at the microplastic level -- in under seven months.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Secrets of the Van Allen belt revealed in new study      (via sciencedaily.com)     Original source 

A challenge to space scientists to better understand our hazardous near-Earth space environment has been set in a new study.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Fossil Fuels
Published

New reactor could save millions when making ingredients for plastics and rubber from natural gas      (via sciencedaily.com)     Original source 

A new way to make an important ingredient for plastics, adhesives, carpet fibers, household cleaners and more from natural gas could reduce manufacturing costs in a post-petroleum economy by millions of dollars, thanks to a new chemical reactor.

Biology: Botany Chemistry: General Chemistry: Inorganic Chemistry Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

New route to recyclable polymers from plants      (via sciencedaily.com)     Original source 

Cellulose, abundantly available from plant biomass, can be converted into molecules used to make a new class of recyclable polymers, to sustainably replace some plastics.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Cleaning up environmental contaminants with quantum dot technology      (via sciencedaily.com)     Original source 

The 2023 Nobel Prize in Chemistry was focused on quantum dots -- objects so tiny, they're controlled by the strange rules of quantum physics. Quantum dots used in electronics are often toxic, but their nontoxic counterparts are being explored for uses in medicine and in the environment, including water decontamination. One team of researchers has specially designed carbon- and sulfur-based dots for these environmental applications.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Fossil Fuels Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Recyclable reagent and sunlight convert carbon monoxide into methanol      (via sciencedaily.com)     Original source 

Scientists have demonstrated the selective conversion of carbon dioxide (CO2) into methanol using a cascade reaction strategy. The two-part process is powered by sunlight, occurs at room temperature and at ambient pressure, and employs a recyclable organic reagent that's similar to a catalyst found in natural photosynthesis.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
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Scientists find one of the most ancient stars that formed in another galaxy      (via sciencedaily.com)     Original source 

The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. The iron running in your veins and the calcium in your teeth and the sodium powering your thoughts were all born in the heart of a long-dead star.

Offbeat: General Offbeat: Space Space: Astrophysics Space: General Space: Structures and Features
Published

Quantum tornado provides gateway to understanding black holes      (via sciencedaily.com)     Original source 

Scientists have created a giant quantum vortex to mimic a black hole in superfluid helium that has allowed them to see in greater detail how analogue black holes behave and interact with their surroundings.

Biology: Biochemistry Biology: Cell Biology Biology: General Chemistry: Biochemistry Chemistry: General Ecology: Animals Energy: Batteries Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Crawfish could transfer ionic lithium from their environment into food chain      (via sciencedaily.com)     Original source 

Lithium-ion rechargeable batteries are showing up in ever more devices, and the increasing use of this technology means more lithium is expected to find its way into the environment as a contaminant. In new research, a team has explored how this ion accumulates in a common Southern crustacean, the crawfish, with implications for the environment and public health.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
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Astrophysicist's research could provide a hint in the search for dark matter      (via sciencedaily.com)     Original source 

Dark matter is one of science's greatest mysteries. Although it is believed to make up about 85 percent of the cosmos, scientists know very little about its fundamental nature. Research provides some of the most stringent constraints on the nature of dark matter yet. It also revealed a small hint of a signal that, if real, could be confirmed in the next decade or so.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Toxic metal particles can be present in cannabis vapes even before the first use, study finds      (via sciencedaily.com)     Original source 

Though vapes have been heralded as a 'safer' way to consume either nicotine or cannabis, they present their own suite of risks that are being revealed through increasing regulation. Now, scientists have discovered that nano-sized toxic metal particles can be present in cannabis vaping liquids even before any heating occurs, and the effect is worse in illicit products.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Offbeat: General Physics: Optics
Published

Molecular crystal motors move like microbes when exposed to light      (via sciencedaily.com)     Original source 

At first glance, Rabih Al-Kaysi's molecular motors look like the microscopic worms you'd see in a drop of pond water. But these wriggling ribbons are not alive; they're made from crystallized molecules that perform coordinated movements when exposed to light. With continued development, these tiny machines could be used as drug-delivery robots or engineered into arrays that direct the flow of water around submarines.