Архив рубрики ‘Inonews’

Nanoscale building blocks and DNA ‘glue’ help shape 3D architectures

Scientists devised a new way of assembling ordered crystals made of nanoparticles. In this process, nanoparticles in the shape of cubes, octahedrons, and spheres coordinate with each other to build structures. The shapes are bound together by complemen…

Discovery in growing graphene nanoribbons could enable faster, more efficient electronics

Graphene, an atom-thick material with extraordinary properties, is a promising candidate for the next generation of dramatically faster, more energy-efficient electronics. However, scientists have struggled to fabricate the material into ultra-narrow s…

Could flu someday be prevented without a vaccine?

Researchers have discovered a way to trigger a preventive response to a flu infection without any help from the usual players – the virus itself or interferon, a powerful infection fighter. The finding suggests that manipulating a natural process could someday be an alternative way to not just reduce flu severity, but prevent infection.

Quantum quarry: Scientists unveil new technique for spotting quantum dots to make high performance nanophotonic devices

Scientists have developed a new technique for finding quantum dots. A quantum dot should produce one and only one photon — the smallest constituent of light — each time it is energized, and this characteristic makes it attractive for use in various q…

Early surgery for mitral regurgitation, before clinical triggers emerge, has best outcomes

Patients with mitral regurgitation face a dilemma of whether to undergo corrective surgery early, when they might have no or few symptoms, or wait until their condition worsens. Current guidelines allow for watchful waiting until certain symptoms appear that would then “trigger” the decision to proceed with surgery. The authors argue that these guidelines are based on relatively weak class C evidence from clinical experience that is now 20 to 30 years old, and surgical methods, including mitral valve repair instead of valve replacement, have now made surgeries safer with good long-term outcomes, especially when performed at high-quality, high-volume centers. The results of a study indicate that delaying surgery until clinical triggers appear leads to increased mortality and congestive heart failure.

New tools for predicting arrival, impact of solar storms

When the sun hurls a billion tons of high-energy particles and magnetic fields into space at speeds of more than a million miles per hour and the ‘space weather’ conditions are right, the resulting geomagnetic storm at Earth can wreak havoc on communic…