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Science

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Diabetes, Angiogenesis, Blood Vessel Formation, Ischemic Injury, VEGF, Ras protein

Scientists Find Key to Regenerating Blood Vessels

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Florida researchers have identified a signaling pathway that is essential for angiogenesis, the growth of new blood vessels from pre-existing vessels. The findings, published in Nature Communications, may improve current strategies to improve blood flow in ischemic tissue, such as that found in atherosclerosis and peripheral vascular disease associated with diabetes.

Science

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Chemistry, Energy, Quantum Dots

Quantum Dots Amplify Light with Electrical Pumping

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In a breakthrough development, Los Alamos scientists have shown that they can successfully amplify light using electrically excited films of the chemically synthesized semiconductor nanocrystals known as quantum dots.

Medicine

Science

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The One Gene, Menu Labeling, Holiday Food Stress, and More in the Obesity News Source

Click here to go directly to Newswise's Obesity News Source

Science

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Nanoparticle, nanoparticle drug delivery, organic nanoparticle, Chemistry, Chemistry Nanotechnology/Micromachines Policy Ethics Technology Medicine Environment

Scientists Capture Colliding Organic Nanoparticles on Video for First Time

A Northwestern University research team is the first to capture on video organic nanoparticles colliding and fusing together. This unprecedented view of “chemistry in motion” will aid Northwestern nanoscientists developing new drug delivery methods as well as demonstrate to researchers around the globe how an emerging imaging technique opens a new window on a very tiny world.

Medicine

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cryo-EM, Cryo Electron Microscopy, Immune System, Pathogen detection

How the Immune System Identifies Invading Bacteria

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Never-before-seen images of mouse immune system proteins and bacterial bits reveal an inspection strategy that identifies pathogens.

Science

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Biological and Environmental Research, biological and environmental sciences, Environmental Science, Tropical Forests, Forests, Forest, Climate Warming, LBNL, Berkeley Lab, tree, Trees, Lawrence Berkeley National Laboratory, Monoterpene, Heat Stress, chemical thermometer, heat, Carbon Dioxide, carbon dioxide (CO2), Carbon Dioxide Atmosphere, CO2, CO2 absorpti

A Chemical Thermometer for Tropical Forests

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Monoterpene measures how certain forests respond to heat stress.

Science

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Biological and Environmental Research, biological and environmental sciences, leaf, Leaves, pine needles, pine tree, Carbon, soil, Terrestrial ecology, Environmental Science, Biogeochemistry, Decomposition, Litter, Nitrogen, nitrogen balance, Nitrogen Fixation, Carbon Cycle, carbon cycling, Lawrence Berkeley National Laboratory, LBNL, Ecosystem, Organic Matter

Where a Leaf Lands and Lies Influences Carbon Levels in Soil for Years to Come

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Whether carbon comes from leaves or needles affects how fast it decomposes, but where it ends up determines how long it's available.

Science

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Pulling Iron Out of Waste Printer Toner

Someday, left-over toner in discarded printer cartridges could have a second life as bridge or building components instead of as trash, wasting away in landfills and potentially harming the environment. One group reports in ACS Sustainable Chemistry & Engineering that they have devised a method to recycle the residual powder in “empty” cartridges into iron using temperatures that are compatible with existing industrial processes.

Science

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Wine “Legs” and Minibot Motors

As any wine enthusiast knows, the “legs” that run down a glass after a gentle swirl of vinocan yield clues about alcohol content. Interestingly, the physical phenomenon that helps create these legs can be harnessed to propel tiny motors to carry out tasks on the surface of water. Scientists demonstrate the motors in a report in ACS’ journal Langmuir.

Science

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Hydrogenation, Hydrogen, Volatility, hydrogen getter, Catalytic, Carbon, carbon-hydrogen bonds, Hom N. Sharma, Elizabeth A. Sangalang, Cheng K. Saw, Gareth A. Cairns, William McLean, Robert S. Maxwell, Long N. Dinh, Lawrence Livermore National Laboratory, AWE plc

Volatility Surprises Arise in Removing Excess Hydrogen

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Sometimes during catalytic hydrogenation, the partially hydrogenated products become volatile, melting and evaporating away before they can bind to more hydrogen atoms. Now, researchers have explored how and why this volatility varies during hydrogenation, suggesting that a previously underappreciated effect from carbon-hydrogen bonds in the molecule is the main culprit. The new analysis, published in The Journal of Chemical Physics, can help chemists identify the ideal conditions needed for catalytic hydrogenation so they can better remove excess hydrogen.







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