Showing 20 articles starting at article 821
< Previous 20 articles Next 20 articles >
Categories: Chemistry: Organic Chemistry, Space: General
Published Study hints at the existence of the closest black holes to Earth in the Hyades star cluster
(via sciencedaily.com) A new article hints at the existence of several black holes in the Hyades cluster -- the closest open cluster to our solar system -- which would make them the closest black holes to Earth ever detected.
Published Polymer that can be adapted to high and low temperature extremes created
(via sciencedaily.com) Researchers have developed two closely related polymers that respond differently to high and low temperature thresholds, despite their similar design. The polymer pair could be used in applications in medicine, protein synthesis, protective coatings and other fields.
Published How to prevent biofilms in space
(via sciencedaily.com) Original source In experiments aboard the International Space Station, a surface treatment developed engineers prevented the growth of microbial biofims. These films can damage equipment and potentially cause illness.
Published Ravenous black hole consumes three Earths'-worth of star every time it passes
(via sciencedaily.com) Massive burst of X-rays detected by astronomers indicates material three times the mass of Earth burning up in a black hole. They observed a star like our own Sun being eaten away every time it orbits close. First time a Sun-like star being repeatedly disrupted by a low mass black hole has been seen, opening the possibility of a range of star and black hole combinations to be discovered.
Published Engineers design more powerful RNA vaccines
(via sciencedaily.com) By adding synergistic self-adjuvanting properties to COVID-19 RNA vaccines, researchers showed they could significantly boost the immune response generated in mice.
Published New cosmological constraints on the nature of dark matter
(via sciencedaily.com) New research has revealed the distribution of dark matter in never before seen detail, down to a scale of 30,000 light-years. The observed distribution fluctuations provide better constraints on the nature of dark matter.
Published On the track of elusive neutrinos
(via sciencedaily.com) Scientists have been able to show that the CRES method is suitable for determining the neutrino mass and has already set an upper limit for this fundamental quantity in a first measurement -- an important milestone has thus been reached.
Published Extending the playing field for organosulfurs: a new way to synthesize sulfinate esters
(via sciencedaily.com) Sulfinate esters, a type of organosulfur compounds, are typically synthesized using thiols. However, these substances are difficult to work with due to their unpleasant smell and oxidizability in air. Now, a research team has found a way to produce sulfinate esters through the direct oxidation of thioesters, which are easily accessible and stable. Their findings will help expand the field of organosulfur chemistry and hopefully lead to new applications in pharmaceuticals.
Published Chemists devise a method for C-H activation of alcohols
(via sciencedaily.com) Chemists have extended a powerful molecule-building method -- called C-H activation -- to the broad class of chemicals known as alcohols.
Published Researchers develop highly efficient and stable photoelectrode for water splitting using organic semiconductors
(via sciencedaily.com) A recent study has unveiled a significant breakthrough in photoelectrode development.
Published Furthest ever detection of a galaxy's magnetic field
(via sciencedaily.com) Astronomers have detected the magnetic field of a galaxy so far away that its light has taken more than 11 billion years to reach us: we see it as it was when the Universe was just 2.5 billion years old. The result provides astronomers with vital clues about how the magnetic fields of galaxies like our own Milky Way came to be.
Published Vast bubble of galaxies discovered, given Hawaiian name
(via sciencedaily.com) Original source The immense bubble is 820 million light years from Earth and believed to be a fossil-like remnant of the birth of the universe.
Published New ribozyme can make RNA molecules accessible for click chemistry in living cells
(via sciencedaily.com) Important progress for RNA research: A team has discovered a new ribozyme that can label RNA molecules in living cells.
Published Efficient and mild: Recycling of used lithium-ion batteries
(via sciencedaily.com) Lithium-ion batteries (LIBs) provide our portable devices like tablets and mobiles -- and increasingly also vehicles -- with power. As the share of volatile renewable energy needing electricity storage increases, more and more LIBs are needed, lithium prices rise, resources dwindle, and the amount of depleted batteries that contain toxic substances increases. Researchers introduce a novel approach for the recovery of lithium from used LIBs.
Published 3D-printed 'living material' could clean up contaminated water
(via sciencedaily.com) A 'living material,' made of a natural polymer combined with genetically engineered bacteria, could offer a sustainable and eco-friendly solution to clean pollutants from water. Researchers developed their living material using a seaweed-based polymer and bacteria that have been programmed to produce an enzyme that transforms various organic pollutants into harmless compounds. In tests, heir material decontaminated water solutions tainted with a pollutant from textile manufacturing: indigo carmine, a blue dye that is used to color denim.
Published Hot Jupiter blows its top
(via sciencedaily.com) The planet HAT-P-32b is losing so much of its atmospheric helium that the trailing gas tails are among the largest structures yet known any planet outside our solar system. Three-dimensional (3D) simulations helped model the flow of the planet's atmosphere. The scientists hope to widen their planet-observing net and survey 20 additional star systems to find more planets losing their atmosphere and learn about their evolution.
Published Striking gold with molecular mystery solution for potential clean energy
(via sciencedaily.com) Hydrogen spillover is exactly what it sounds like. Small metal nanoparticles anchored on a thermally stable oxide, like silica, comprise a major class of catalysts, which are substances used to accelerate chemical reactions without being consumed themselves. The catalytic reaction usually occurs on the reactive -- and expensive -- metal, but on some catalysts, hydrogen atom-like equivalents literally spill from the metal to the oxide. These hydrogen-on-oxide species are called 'hydrogen spillover.'
Published Webb reveals new structures within iconic supernova
(via sciencedaily.com) NASA's James Webb Space Telescope has begun the study of one of the most renowned supernovae, SN 1987A (Supernova 1987A). Located 168,000 light-years away in the Large Magellanic Cloud, SN 1987A has been a target of intense observations at wavelengths ranging from gamma rays to radio for nearly 40 years, since its discovery in February of 1987. New observations by Webb's NIRCam (Near-Infrared Camera) provide a crucial clue to our understanding of how a supernova develops over time to shape its remnant.
Published Scientists detect and validate the longest-period exoplanet found with TESS
(via sciencedaily.com) Scientists have detected and validated two of the longest-period exoplanets found by TESS to date. These long period large exoplanets orbit a K dwarf star and belong to a class of planets known as warm Jupiters, which have orbital periods of 10-200 days and are at least six times Earth's radius. This recent discovery offers exciting research opportunities for the future of finding long-period planets that resemble those in our own solar system.
Published Growing triple-decker hybrid crystals for lasers
(via sciencedaily.com) By controlling the arrangement of multiple inorganic and organic layers within crystals using a novel technique, researchers have shown they can control the energy levels of electrons and holes (positive charge carriers) within a class of materials called perovskites. This tuning influences the materials' optoelectronic properties and their ability to emit light of specific energies, demonstrated by their ability to function as a source of lasers.