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Categories: Chemistry: Organic Chemistry, Space: Cosmology

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

Webb Telescope captures rarely seen prelude to supernova      (via sciencedaily.com) 

The rare sight of a Wolf-Rayet star -- among the most luminous, most massive, and most briefly detectable stars known -- was one of the first observations made by NASA's James Webb Space Telescope in June 2022. Webb shows the star, WR 124, in unprecedented detail with its powerful infrared instruments. The star is 15,000 light-years away in the constellation Sagittarius.

Chemistry: General Chemistry: Inorganic Chemistry Offbeat: General Offbeat: Space Physics: General Space: Astrophysics Space: Cosmology Space: General
Published

Spatial patterns in distribution of galaxies      (via sciencedaily.com) 

In an unlikely pairing, a chemist and an astrophysicist applied the tools of statistical mechanics to find similarities in spatial patterns across length scales.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Batteries Energy: Technology Engineering: Graphene Engineering: Nanotechnology Physics: General
Published

3D internal structure of rechargeable batteries revealed      (via sciencedaily.com) 

Researchers have pioneered a technique to observe the 3D internal structure of rechargeable batteries. This opens up a wide range of areas for the new technique from energy storage and chemical engineering to biomedical applications.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Chemistry: Thermodynamics
Published

Thermal conductivity of metal organic frameworks      (via sciencedaily.com) 

Metal organic frameworks, or MOFs, are kind of like plastic building block toys. The pieces are simple to connect, yet they're capable of building highly sophisticated structures.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Geoscience: Earth Science Geoscience: Geochemistry
Published

Scientists identify substance that may have sparked life on Earth      (via sciencedaily.com) 

A team of scientists dedicated to pinpointing the primordial origins of metabolism -- a set of core chemical reactions that first powered life on Earth -- has identified part of a protein that could provide scientists clues to detecting planets on the verge of producing life.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

Customizing catalysts for solid-state reactions      (via sciencedaily.com) 

A newly developed molecular catalyst specifically tailored for mechanochemical reaction conditions enables high-efficiency transformations at near room temperature.

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

Researchers find access to new fluorescent materials      (via sciencedaily.com) 

Fluorescence is a fascinating natural phenomenon. It is based on the fact that certain materials can absorb light of a certain wavelength and then emit light of a different wavelength. Fluorescent materials play an important role in our everyday lives, for example in modern screens. Due to the high demand for applications, science is constantly striving to produce new and easily accessible molecules with high fluorescence efficiency.

Chemistry: Organic Chemistry Engineering: Graphene Engineering: Nanotechnology
Published

Microscopy: Highest resolution in three dimensions      (via sciencedaily.com) 

Researchers have developed a super-resolution microscopy method for the rapid differentiation of molecular structures in 3D.

Biology: Biotechnology Biology: Microbiology Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

New biosensor reveals activity of elusive metal that's essential for life      (via sciencedaily.com) 

A new biosensor offers scientists the first dynamic glimpses of manganese, an elusive metal ion that is essential for life.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels
Published

A safe synthesis of hydrogen peroxide inspired by nature      (via sciencedaily.com) 

Scientists report the safe synthesis of hydrogen peroxide (H2O2), an oxidizing agent used in multiple industries including semiconductors, using a new rhodium-based catalyst. The catalyst is based on natural enzymes found in extremophile microorganisms, and the reaction meets three chemical ideals for H2O2 production: safe, use of a single vessel, and direct synthesis.

Chemistry: Organic Chemistry
Published

DNA repair discovery could improve biotechnology      (via sciencedaily.com) 

A team of researchers has made a discovery that may have implications for therapeutic gene editing strategies, cancer diagnostics and therapies and other advancements in biotechnology.

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

Ultracool dwarf binary stars break records      (via sciencedaily.com) 

Astrophysicists have discovered the tightest ultracool dwarf binary system ever observed. The two stars are so close that it takes them less than one Earth day to revolve around each other. In other words, each star's 'year' lasts just 17 hours.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Computer Science: Quantum Computers Offbeat: Computers and Math Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum chemistry: Molecules caught tunneling      (via sciencedaily.com) 

Quantum effects can play an important role in chemical reactions. Physicists have now observed a quantum mechanical tunneling reaction in experiments. The observation can also be described exactly in theory. The scientists provide an important reference for this fundamental effect in chemistry. It is the slowest reaction with charged particles ever observed.

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

AI draws most accurate map of star birthplaces in the Galaxy      (via sciencedaily.com) 

Scientists identified about 140,000 molecular clouds in the Milky Way Galaxy from large-scale data of carbon monoxide molecules, observed in detail by the Nobeyama 45-m radio telescope. Using artificial intelligence, the researchers estimated the distance of each of these molecular clouds to determine their size and mass, successfully mapping the distribution of the molecular clouds in the Galaxy in the most detailed manner to date.

Chemistry: General Chemistry: Organic Chemistry
Published

Degrading modified proteins could treat Alzheimer's, other 'undruggable' diseases      (via sciencedaily.com) 

Certain diseases, including Alzheimer's, are currently considered 'undruggable' because traditional small molecule drugs can't interfere with the proteins responsible for the illnesses. But a new technique that specifically targets and breaks apart certain proteins -- rather than just interfering with them -- may offer a pathway toward treatment. Researchers have now designed a compound that targets and breaks down a post-translationally modified protein closely associated with Alzheimer's disease.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

New purification method could make protein drugs cheaper      (via sciencedaily.com)     Original source 

Engineers devised a way to purify protein drugs during manufacturing. Their approach, which uses nanoparticles to rapidly crystallize proteins, could help make protein drugs more affordable and accessible, especially in developing countries.

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

Galactic explosion offers astrophysicists new insight into the cosmos      (via sciencedaily.com) 

Using data from the James Webb Space Telescope's first year of interstellar observation, an international team of researchers was able to serendipitously view an exploding supernova in a faraway spiral galaxy.

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

Astronomers discover metal-rich galaxies in early universe      (via sciencedaily.com) 

While analyzing data from the first images of a well-known early galaxy taken by NASA's James Webb Space Telescope (JWST), astronomers discovered a companion galaxy previously hidden behind the light of the foreground galaxy -- one that surprisingly seems to have already hosted multiple generations of stars despite its young age, estimated at 1.4 billion years old.

Chemistry: Organic Chemistry
Published

New hydrogel stem cell treatment repairs injured brain tissue in mice      (via sciencedaily.com) 

A new hybrid hydrogel that safely delivers stem cells to brain injury sites in mice has been developed. This solves a major challenge -- keeping stem cells alive for long enough to evolve into the cells required to create new tissue after insertion into a damaged part of the body.