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LED-ing the way: A clean and convenient method to oxidize plastic surfaces for industry

13-Jun-2019

Polypropylene (PP) is everywhere, being one of the most widely used plastics in human life. A versatile material, its naturally inert surface can be modified for specific applications. Researchers at Osaka University have now developed a convenient light-driven process for oxidizing PP without ...

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Organic laser diodes move from dream to reality

03-Jun-2019

Researchers from Japan have demonstrated that a long-elusive kind of laser diode based on organic semiconductors is indeed possible, paving the way for the further expansion of lasers in applications such as biosensing, displays, healthcare, and optical communications. Long considered a holy ...

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How small can they get?

Polymers may be the key to single-molecule electronic devices

30-May-2019

Scientists at Tokyo Institute of Technology and University of Tsukuba demonstrate that polymers could play a key role in the fabrication of single-molecule electronic devices, allowing us to push the boundaries of the nanoelectronics revolution. One of the most striking aspects of the electronic ...

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Good vibrations: Using piezoelectricity to ensure hydrogen sensor sensitivity

24-May-2019

A team at Osaka University has invented a new process for creating high-precision sensing devices that respond to the presence of hydrogen gas. By carefully controlling the deposition of metallic nanoparticles on a silicon surface, the researchers were able to create a sensor that can detect low ...

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Self-repairing batteries

A way to create high-capacity long-life batteries

21-May-2019

Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a material which could significantly extend the life of batteries and afford them higher capacities as well. From smartphones to pacemakers and ...

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Nuclear 'magic numbers' collapse beyond the doubly magic nickel 78

06-May-2019

Scientists from the RIKEN Nishina Center for Accelerator-Based Research and collaborators have used the center's heavy ion accelerator, the RI Beam Factory, to demonstrate that nickel 78, a neutron-rich "doubly magic" isotope of nickel with 28 protons and 50 neutrons, still maintains a spherical ...

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Simplified synthesis

Researchers dramatically simplify and streamline organic chemical synthesis

01-Apr-2019

For the first time researchers discovered a simple and highly efficient way to produce certain kinds of organic compounds. The team from the Department of Chemistry at the University of Tokyo report their new method - which uses a novel iron catalyst - can not only simplify organic synthesis but ...

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Zero-emission diesel combustion using a non-equilibrium-plasma-assisted MnO2 filter

11-Mar-2019

Diesel engines are widely used in agricultural machinery, vehicles, and ships because of their high thermal efficiency. The sulfur contained in the diesel fuel is oxidized to sulfur dioxide by combustion. This sulfur dioxide not only harms human health but also causes deactivation of the ...

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'Butterfly-shaped' palladium subnano cluster built in 3-D

25-Feb-2019

Miniaturization is the watchword of progress. Nanoscience - building structures on the scale of a few atoms - has long been at the forefront of chemistry for some time now. Recently, researchers at The University of Tokyo developed the new strategy to construct the subnanosized metal aggregates, ...

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Boosting solid state chemical reactions

13-Feb-2019

Adding olefin enables efficient solvent-free cross-coupling reactions, leading to environmentally friendly syntheses of a wide range of organic materials. A cross coupling reaction is typically performed in an organic solvent and leads to the production of a large amount of solvent waste, which ...

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