Showing 20 articles starting at article 921

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Biochemistry, Geoscience: Landslides

Return to the site home page

     (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.

     (via sciencedaily.com) 

A new study suggests that railroads are likely to cut transportation prices to prop up coal-fired plants if U.S. climate policies further disadvantage coal in favor of less carbon-intensive energy sources.

     (via sciencedaily.com) 

Researchers have developed the first electronic device for continuously monitoring the health of transplanted organs in real time. Sitting directly on a transplanted kidney, the ultrathin, soft implant can detect temperature irregularities associated with inflammation and other body responses that arise with transplant rejection. Then, it alerts the patient or physician by wirelessly streaming data to a nearby smartphone or tablet. In a rat study, it detected rejection up to three times earlier than blood biomarkers and biopsies.

     (via sciencedaily.com) 

Millions of Americans have inflammatory bowel disease (IBD), which occurs in one of two forms: Crohn's disease or ulcerative colitis. Though the two have similar symptoms, they require different treatment strategies, and tests to distinguish between them are invasive. Researchers now show that chains of sugar molecules are tacked onto antibodies differently in patients with the diseases, which could someday lead to a simple blood-based diagnostic test.

     (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.

     (via sciencedaily.com) 

Researchers have developed a new approach that slashes the land and time needed to extract lithium from brine, which could dramatically expand access to the critical mineral.

     (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.

     (via sciencedaily.com) 

Chemists have extended a powerful molecule-building method -- called C-H activation -- to the broad class of chemicals known as alcohols.

     (via sciencedaily.com) 

A recent study has introduced a groundbreaking milestone in tissue regeneration by developing a technology that utilizes autologous blood to produce three-dimensional microvascular implants.

     (via sciencedaily.com) 

Researchers scientists have unlocked a new realm of possibilities for non-volatile phase change memory, a type of electronic memory capable of retaining data even without power. Traditionally, researchers have relied on chalcogenides, materials with reversible electrical properties during transitions between crystalline and amorphous states. But an exciting alternative has emerged in the form of layered nickelates, complex oxide materials composed of nickel ions. These nickelates, with their unique layered structure and thermally reversible switching of room-temperature electrical resistivity, offer superior performance and sustainability potential.

     (via sciencedaily.com) 

As drinking water flows through pipes and into a glass, it runs against the rubber seals inside some plumbing devices. These parts contain additives that contribute to their flexibility and durability, but these potentially harmful compounds can leak into drinking water, according to a small-scale study. The authors report that the released compounds, which are typically linked to tire pollution, also transformed into other unwanted byproducts.

     (via sciencedaily.com) 

A team of scientists developed a new machine learning model for discovering critical-element-free permanent magnet materials based on the predicted Curie temperature of new material combinations.

     (via sciencedaily.com) 

Researchers have pushed the limits of the possible in the field of atomic-scale spin-optics, creating a spin-optical laser from monolayer-integrated spin-valley microcavities without requiring magnetic fields or cryogenic temperatures.

     (via sciencedaily.com) 

By adding a naturally-occurring polymer that makes wood more porous, scientists have engineered trees easier to disassemble into simpler building blocks.

     (via sciencedaily.com) 

Important progress for RNA research: A team has discovered a new ribozyme that can label RNA molecules in living cells.

     (via sciencedaily.com) 

Scientists demonstrated a conceptual breakthrough by fabricating atomically precise quantum antidots using self-assembled single vacancies in a two-dimensional transition metal dichalcogenide.

     (via sciencedaily.com) 

Urban stormwater particles from tire wear were the most prevalent microplastic a new study has found. The study showed that in stormwater runoff during rain approximately 19 out of every 20 microplastics collected were tire wear particles with anywhere from 2 to 59 particles per liter of water. Tire rubber contains up to 2500 chemicals with the contaminants that leach from tires considered more toxic to bacteria and microalgae than other plastic polymers.

     (via sciencedaily.com) 

Traveling to faraway places is often accompanied by jet lag. Fatigue, difficulty sleeping, and a host of other problems can turn an otherwise exciting adventure into a miserable trip. Researchers have developed a theoretical model to study the interactions between multiple internal clocks under the effects of aging and disruptions like jet lag. Based on their results, they suggest techniques that could improve internal clock recovery.

     (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.

     (via sciencedaily.com) 

Researchers developed a new software tool, SparkMaster 2, that allows scientists to analyze normal and abnormal calcium activity in cells.