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Categories: Engineering: Nanotechnology, 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.

Biology: Evolutionary Biology: Microbiology Chemistry: Biochemistry Chemistry: Inorganic Chemistry Engineering: Nanotechnology
Published

Scientists transform algae into unique functional perovskites with tunable properties      (via sciencedaily.com) 

Scientists have transformed single-cell algae into functional perovskite materials. The team has converted mineral shells of algae into lead halide perovskites with tunable physical properties. The new perovskites have unique nano-architectures unachievable by conventional synthetic production. The method can be applied to the mass production of perovskites with tunable structural and electro-optical properties from single-celled organisms.

Energy: Technology Engineering: Nanotechnology
Published

Are piezoelectrics good for generating electricity? Perhaps, but we must decide how to evaluate them      (via sciencedaily.com) 

A 'best practice' protocol for researchers developing piezoelectric materials has been developed by scientists. The protocol was developed by an international team led by physicists in response to findings that experimental reports lack consistency. The researchers made the shocking discovery that nine out of 10 scientific papers miss experimental information that is crucial to ensure the reproducibility of the reported work.

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: 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.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: General
Published

Some stirring required: Fluid mixing enables scalable manufacturing of soft polymer structures      (via sciencedaily.com) 

Researchers have developed and demonstrated an efficient and scalable technique that allows them to manufacture soft polymer materials in a dozen different structures, or 'morphologies,' from ribbons and nanoscale sheets to rods and branched particles. The technique allows users to finely tune the morphology of the materials at the micro- and nano-scale.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology
Published

Knots smaller than human hair make materials unusually tough      (via sciencedaily.com) 

A micro-architected material made from tiny knots proves tougher and more durable than unknotted counterparts.

Computer Science: General Energy: Technology Engineering: Nanotechnology Physics: General
Published

New kind of transistor could shrink communications devices on smartphones      (via sciencedaily.com) 

One month after announcing a ferroelectric semiconductor at the nanoscale thinness required for modern computing components, a team has now demonstrated a reconfigurable transistor using that material. Their work paves the way for single amplifiers that can do the work of multiple conventional amplifiers, among other possibilities.

Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Graphene quantum dots show promise as novel magnetic field sensors      (via sciencedaily.com) 

Trapped electrons traveling in circular loops at extreme speeds inside graphene quantum dots are highly sensitive to external magnetic fields and could be used as novel magnetic field sensors with unique capabilities, according to a new study.

Chemistry: General Computer Science: Quantum Computers Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

An innovative twist on quantum bits: Tubular nanomaterial of carbon makes ideal home for spinning quantum bits      (via sciencedaily.com) 

Scientists develop method for chemically modifying nanoscale tubes of carbon atoms, so they can host spinning electrons to serve as stable quantum bits in quantum technologies.

Engineering: Nanotechnology Physics: Optics
Published

Bending 2D nanomaterial could 'switch on' future technologies      (via sciencedaily.com) 

Materials scientists have uncovered a property of ferroelectric 2D materials that could be exploited in future devices.

Engineering: Nanotechnology
Published

Scientists develop novel approach to enhance drug delivery for brain tumors in children      (via sciencedaily.com) 

Researchers have developed a new drug delivery approach that uses nanoparticles to enable more effective and targeted delivery of anti-cancer drugs to treat brain tumors in children.

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.

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: 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.

Engineering: Nanotechnology Physics: General Physics: Optics
Published

A motion freezer for many particles      (via sciencedaily.com) 

From the way that particles scatter light, it is possible to calculate a special light field that can slow these particles down. This is a new and powerful method to cool particles down to extremely low temperatures.

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.