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Semiconductor nanoparticles show high luminescence in a polymer matrix


Semiconductor nanocrystals known as quantum dots (QDs) are increasingly being used as photoluminescent materials in bio-imaging, photonics, and optoelectronic applications. However, these QDs must have stable photoluminescence properties to be used in these applications. Photoluminescence ...


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How do atoms alter during a supernova explosion?


A research group from Osaka University, in collaboration with an international research team, successfully realized in laboratory the world of exotic atoms under extreme state through high - brightness X-ray sources, typically realized in supernova explosions. A world first research produced ...


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Metamaterial absorbers for infrared inspection technologies

A metamaterial absorber enhances the spectroscopy of tiny molecular details


Plasmonic metamaterials are substances whose structure can be manipulated to influence the way they interact with light. As such, metamaterials offer an attractive platform for sensing applications, including infrared (IR) absorption spectroscopy. Atsushi Ishikawa at Okayama University and ...


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Exploration of stable, crystalline, porous covalent organic frameworks


Covalent organic frameworks (COFs) are a class of porous polymers that enable the atomically precise incorporation of organic units into periodic structures, creating highly ordered π-columnar arrays and one-dimensional open channels. One significant structural feature is that they can be ...


New diamond structures produce bright luminescence

Use in quantum cryotography and biomarkers applications


Germanium defects in a diamond crystal lattice act as a reliable source for single photons, new research shows. The results provide a promising new route to building components for quantum cryptography and biomarkers. Pure diamonds are naturally colorless, but gaps in the crystal structure or ...


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Draw out of the predicted interatomic force


Liquid Bi shows a peculiar dispersion of the acoustic mode, which is related to the Peierls distortion in the crystalline state. These results will provide valuable inspiration to researchers developing new materials in the nanotechnology field.Studies of the atomic dynamics in liquid Bi have ...


Birth of photo-sensitive magnets

New functional photonic materials and devices based on magnetism


Members of the spin-photonics team at Tokyo Tech including KosukeYamamoto, a master's course graduate student at the School of Interdisciplinary Science and Engineering, Yoshitaka Kitamoto, professor at the same school, and Hiro Munekata, professor at the Imaging Science and Engineering ...


Intractable pain may find relief in tiny gold rods


A team of scientists at Kyoto University's Institute for Integrated Cell-Material Sciences (iCeMS) has developed a novel technique using tiny gold rods to target pain receptors. Gold nanorods are tiny rods that are 1-100 nanometers wide and long. The team coated gold nanorods with a special type ...


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New hydrogel stretches and contracts like a heat-driven muscle


In research a team led by scientists from the RIKEN Center for Emergent Matter Science in Japan has developed a new hydrogel that works like an artificial muscle - quickly stretching and contracting in response to changing temperature. They have also managed to use the polymer to build an ...


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Pouring fire on fuels at the nanoscale


There are no magic bullets for global energy needs. But fuel cells in which electrical energy is harnessed directly from live, self-sustaining chemical reactions promise cheaper alternatives to fossil fuels. To facilitate faster energy conversion in these cells, scientists disperse nanoparticles ...


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