Science

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Production of Anticancer Drug from Nanofibers in Iran

Iranian researchers produced a new nanodrug and investigated its applications to increase the effectiveness and performance of anticancer drugs.

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Laser link offers high-speed delivery

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The gold standard for EDRS.

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The mysterious 'action at a distance' between liquid containers

For several years, it has been known that superfluid helium housed in reservoirs located next to each other acts collectively, even when the channels connecting the reservoirs are too narrow and too long to allow for substantial flow. A new theoretical model reveals that the phenomenon of mysterious communication "at a distance" between fluid reservoirs is much more common than previously thought.

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When large reservoirs are connected by very narrow and long channels, the liquid in each reservoir acts independently of the liquid in adjacent reservoirs. In the microworld, the physics is different: if the liquid filling the reservoirs complies with certain conditions (the most important of which is that the fluid is at coexistence between its two phases), even surprisingly small channels can correlate the state of the liquid in adjacent reservoirs.

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'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films

In metals such as copper or aluminium, so-called conduction electrons are able to move around freely, in the same way as particles in a gas or a liquid. If, however, impurities are implanted into the metal's crystal lattice, the electrons cluster together in a uniform pattern around the point of interference, resembling the ripples that occur when a stone is thrown into a pool of water. Scientists in Jülich have, with the help of computer simulations, now discovered a combination of materials that strengthens these Friedel oscillations and bundles them, as if with a lens, in different directions. With a range of 50 nanometers, these "giant anisotropic charge density oscillations" are many times greater than normal and open up new possibilities in the field of nanoelectronics to exchange or filter magnetic information.

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Electron density oscillations on the surface of a metallic film were made visible with the help of low temperature scanning tunneling microscopy.

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Research yields material made of single-atom layers that snap together like Legos

Physicists at the University of Kansas have fabricated an innovative substance from two different atomic sheets that interlock much like Lego toy bricks. The researchers said the new material — made of a layer of graphene and a layer of tungsten disulfide — could be used in solar cells and flexible electronics.

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NRL Scientists Discover Novel Metamaterial Properties within Hexagonal Boron Nitride

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Periodic arrays of cone-shaped hexagonal boron nitride (hBN) nanoantennas, depicted magnified image above, were used to confine hyperbolic polaritons in all three dimensions. This enabled the researchers to fundamentally probe the novel optical properties within these materials and demonstrate the highly directional, low loss hyperbolic polaritons that are confined within the volume of the antennas. These results provide the first foray into natural hyperbolic materials as building blocks for nanophotonic devices in the mid-infrared to terahertz (THz) spectral range.

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For Important Tumor-Suppressing Protein, Context is Key

Berkeley Lab scientists learn new insights into how p53 binds to the human genome

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Illustration of p53 binding to major categories of repeats in the human genome, such as LTR, SINE and LINE.

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NASA Issues 'Remastered' View of Jupiter's Moon Europa

The puzzling, fascinating surface of Jupiter's icy moon Europa looms large in this newly-reprocessed color view, made from images taken by NASA's Galileo spacecraft in the late 1990s

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Extreme Shrimp May Hold Clues to Alien Life

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Shrimp called Rimicaris hybisae at deep hydrothermal vents in the Caribbean seem to have different dietary habits depending on the proximity of other shrimp. Those who live in dense clusters like this one live off bacteria primarily, but in areas where the shrimp are distributed more sparsely, the shrimp are more likely to turn carnivorous, and even eat each other.

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New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network”

The Baltic Sea Network is an ambitious collaborative research project between partner universities in Germany, Finland, Latvia, Lithuania, Poland and Sweden. The project, which is supported in part by a financial grant of €76,500 from the Federal Ministry of Education and Research in Germany, focuses on the manufacture and characterisation of innovative structured nanomaterials for medical applications.

The Baltic Sea Network is a multidisciplinary research project which will explore new biomedical applications for nanomaterials, for example in cancer treatment, for antimicrobial purposes, as bio-sensors or as a contrast agent for medical diagnostics. Participating universities and researchers hope that by promoting a free exchange of research and ideas, for example by making laboratories and facilities accessible to other project partners, they will encourage new research findings to the benefit of all participants. The project's ultimate goal, however, is to establish a new research platform focused on developing hybrid nanomaterials for biomaterial applications.