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Categories: Chemistry: Organic Chemistry, Space: General

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

Black holes are messy eaters      (via sciencedaily.com)     Original source 

New observations down to light-year scale of the gas flows around a supermassive black hole have successfully detected dense gas inflows and shown that only a small portion (about 3 percent) of the gas flowing towards the black hole is eaten by the black hole. The remainder is ejected and recycled back into the host galaxy.

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

Researchers find gravitational lensing has significant effect on cosmic birefringence      (via sciencedaily.com)     Original source 

Future missions will be able to find signatures of violating the parity-symmetry in the cosmic microwave background polarization more accurately after a pair of researchers has managed to take into account the gravitational lensing effect, reports a new study.

Chemistry: General Chemistry: Organic Chemistry Energy: Technology Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Self-powered microbial fuel cell biosensor for monitoring organic freshwater pollution      (via sciencedaily.com)     Original source 

Biodegradable waste from plant and animal sources released into freshwater ecosystems is a significant environmental concern. Nonetheless, current methods for assessing water quality seem more or less impractical due to their complexity and high costs. In a promising development, a team of researchers has successfully constructed a self-sustaining and buoyant biosensor using inexpensive carbon-based materials for monitoring water quality at the inlets of freshwater lakes and rivers.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Exploding stars      (via sciencedaily.com)     Original source 

When massive stars or other stellar objects explode in the Earth's cosmic neighborhood, ejected debris can also reach our solar system. Traces of such events are found on Earth or the Moon and can be detected using accelerator mass spectrometry, or AMS for short.

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

'Jurassic worlds' might be easier to spot than modern Earth      (via sciencedaily.com)     Original source 

An analysis finds telescopes could better detect potential chemical signatures of life in an Earth-like exoplanet that more closely resembles the age the dinosaurs inhabited than the one we know today.

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

Chemists make breakthrough in drug discovery chemistry      (via sciencedaily.com)     Original source 

Chemists offer two new methods to develop a way to easily replace a carbon atom with a nitrogen atom in a molecule.  The findings could make it easier to develop new drugs.

Chemistry: Biochemistry Chemistry: Organic Chemistry
Published

Breakthrough discovery sheds light on heart and muscle health      (via sciencedaily.com)     Original source 

The human heart, often described as the body's engine, is a remarkable organ that tirelessly beats to keep us alive. At the core of this vital organ, intricate processes occur when it contracts, where thick and thin protein-filaments interact within the sarcomere, the fundamental building block of both skeletal and heart muscle cells. Any alterations in thick filament proteins can have severe consequences for our health, leading to conditions such as hypertrophic cardiomyopathy and various other heart and muscle diseases.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Chemistry: Biochemistry Chemistry: Organic Chemistry
Published

New Nijmegen method reveals hidden genetic variations      (via sciencedaily.com)     Original source 

Many hidden genetic variations can be detected with Chameleolyser, a new method. The information is already yielding new patient diagnoses and may also lead to the discovery of as yet unknown disease genes.

Space: Astronomy Space: Cosmology Space: General Space: Structures and Features Space: The Solar System
Published

Giant planets cast a deadly pall      (via sciencedaily.com)     Original source 

Giant gas planets can be agents of chaos, ensuring nothing lives on their Earth-like neighbors around other stars. New studies show, in some planetary systems, the giants tend to kick smaller planets out of orbit and wreak havoc on their climates.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Batteries Energy: Fossil Fuels Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Efficient biohybrid batteries      (via sciencedaily.com)     Original source 

Formic acid, which can be produced electrochemically from carbon dioxide, is a promising energy carrier. A research team has now developed a fast-charging hybrid battery system that combines the electrochemical generation of formic acid as an energy carrier with a microbial fuel cell. This novel, fast-charging biohybrid battery system can be used to monitor the toxicity of drinking water, just one of many potential future applications.

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

New frequency comb can identify molecules in 20-nanosecond snapshots      (via sciencedaily.com)     Original source 

Researchers have developed a device that can detect the presence of specific molecules in a sample every 20 nanoseconds, or billionths of a second. With this new capability, researchers can potentially use frequency combs to better understand the split-second intermediate steps in fast-moving processes ranging from the workings of hypersonic jet engines to the chemical reactions between enzymes that regulate cell growth.

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

The Crab Nebula seen in new light by NASA's Webb      (via sciencedaily.com)     Original source 

NASA's James Webb Space Telescope has gazed at the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. Since the recording of this energetic event in 1054 CE by 11th-century astronomers, the Crab Nebula has continued to draw attention and additional study as scientists seek to understand the conditions, behavior, and after-effects of supernovae through thorough study of the Crab, a relatively nearby example.

Chemistry: Biochemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

'Plug and play' nanoparticles could make it easier to tackle various biological targets      (via sciencedaily.com)     Original source 

Engineers have developed modular nanoparticles that can be easily customized to target different biological entities such as tumors, viruses or toxins. The surface of the nanoparticles is engineered to host any biological molecules of choice, making it possible to tailor the nanoparticles for a wide array of applications, ranging from targeted drug delivery to neutralizing biological agents.

Offbeat: General Offbeat: Space Physics: Optics Space: Astronomy Space: Exploration Space: General
Published

To advance space colonization, new research explores 3D printing in microgravity      (via sciencedaily.com)     Original source 

Research into how 3D printing works in a weightless environment aims to support long-term exploration and habitation on spaceships, the moon or Mars.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Chemistry: Biochemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Environmental: General
Published

How to protect biocatalysts from oxygen      (via sciencedaily.com)     Original source 

There are high hopes for hydrogen as the key to the energy transition. A specific enzyme group found in algae and in bacteria can produce molecular hydrogen simply by catalyzing protons and electrons. However, the enzyme group is so sensitive to oxygen that commercial use of the hydrogen produced by this process as a green energy source is not yet possible. Researchers have now increased the oxygen stability of a hydrogen-producing enzyme by genetically generated channel blockages.

Energy: Alternative Fuels Environmental: General Geoscience: Earth Science Geoscience: Geology Geoscience: Geomagnetic Storms Geoscience: Severe Weather Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

The importance of the Earth's atmosphere in creating the large storms that affect satellite communications      (via sciencedaily.com)     Original source 

Large geomagnetic storms disrupt radio signals and GPS. Now, researchers have identified the previous underestimated role of the ionosphere, a region of Earth's upper atmosphere that contains a high concentration of ions and free electrons, in determining how such storms develop. Understanding the interactions that cause large geomagnetic storms is important because they can disrupt radio signals and GPS. Their findings may help predict storms with the greatest potential consequences.

Offbeat: General Offbeat: Space Space: Astronomy Space: General Space: Structures and Features Space: The Solar System
Published

Uranus aurora discovery offers clues to habitable icy worlds      (via sciencedaily.com)     Original source 

Astronomers confirm the existence of an infrared (IR) aurora on Uranus. This could help astronomers identify exoplanets that might support life, a large number of which are icy worlds.

Chemistry: Biochemistry Chemistry: Organic Chemistry Energy: Technology Engineering: Nanotechnology
Published

DNA Origami nanoturbine sets new horizon for nanomotors      (via sciencedaily.com)     Original source 

Researchers introduce a pioneering breakthrough in the world of nanomotors -- the DNA origami nanoturbine. This nanoscale device could represent a paradigm shift, harnessing power from ion gradients or electrical potential across a solid-state nanopore to drive the turbine into mechanical rotations. The core of this pioneering discovery is the design, construction, and driven motion of a 'DNA origami' turbine, which features three chiral blades, all within a minuscule 25-nanometer frame, operating in a solid-state nanopore. By ingeniously designing two chiral turbines, researchers now have the capability to dictate the direction of rotation, clockwise or anticlockwise.