Science

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Production of New Nanocatalyst in Iran with Application in Pharmaceutical, Oil Industries

Iranian researchers from Birjand University used nanotechnology and produced a magnetic nanocatalyst that can be used many times without any reduction in its activity.

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Production of Nanocatalyst Applicable in Synthesis of Organic Compounds

Iranian researchers succeeded in the production of a new nanocatalyst which eliminates the need for application of organic solvents in the synthesis of organic compounds.

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NASA's Curiosity Analyzing Sample of Martian Mountain

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Gray cuttings from Curiosity's drilling into a target called "Mojave 2" are visible surrounding the sample-collection hole in this Jan. 31, 2015, image from the rover's MAHLI camera. This site in the "Pahrump Hills" outcrop provided the mission's second drilled sample of Mars' Mount Sharp.

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Cesium atoms shaken, not stirred, to create elusive excitation in superfluid

Scientists discovered in 1937 that liquid helium-4, when chilled to extremely low temperatures, became a superfluid that could leak through glass, overflow its containers, or eternally gush like a fountain.

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University of Chicago scientists can create an exotic, particle-like excitation called a roton in superfluids with the tabletop apparatus pictured here. Posing from left are graduate students Li-Chung Ha and Logan Clark, and physics Professor Cheng Chin.

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Cesium atoms shaken, not stirred, to create elusive excitation in superfluid

Scientists discovered in 1937 that liquid helium-4, when chilled to extremely low temperatures, became a superfluid that could leak through glass, overflow its containers, or eternally gush like a fountain.

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University of Chicago scientists can create an exotic, particle-like excitation called a roton in superfluids with the tabletop apparatus pictured here. Posing from left are graduate students Li-Chung Ha and Logan Clark, and physics Professor Cheng Chin.

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X-ray pulses uncover free nanoparticles for the first time in 3-D 'Super microscope' reveals unexpected variety of shapes

For the first time, a German-American research team has determined the three-dimensional shape of free-flying silver nanoparticles, using DESY's X-ray laser FLASH. The tiny particles, hundreds of times smaller than the width of a human hair, were found to exhibit an unexpected variety of shapes, as the physicists from the Technical University (TU) Berlin, the University of Rostock, the University of Rostock, the SLAC National Accelerator Laboratory in the United States and from DESY report. Besides this surprise, the results open up new scientific routes, such as direct observation of rapid changes in nanoparticles.

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This is a wide-angle X-ray diffraction image of a truncated twinned tetrahedra nanoparticle.

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Penta-graphene, a new structural variant of carbon, discovered: The unique structure of the thin sheet of pure carbon was inspired by pentagonal tile pattern found in the streets of Cairo

Researchers at Virginia Commonwealth University and universities in China and Japan have discovered a new structural variant of carbon called "penta-graphene" - a very thin sheet of pure carbon that has a unique structure inspired by a pentagonal pattern of tiles found paving the streets of Cairo.

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The newly discovered material, called penta-graphene, is a single layer of carbon pentagons that resembles the Cairo tiling, and that appears to be dynamically, thermally and mechanically stable.

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Rediscovering spontaneous light emission: Berkeley researchers develop optical antenna for LEDs

Berkeley Lab researchers have developed a nano-sized optical antenna that can greatly enhance the spontaneous emission of light from atoms, molecules and semiconductor quantum dots. This advance opens the door to light-emitting diodes (LEDs) that can replace lasers for short-range optical communications, including optical interconnects for microchips, plus a host of other potential applications.

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Spontaneous light emissions from LEDs can be substantially enhanced when coupled to the right optical antenna, making them comparable to the stimulated emissions from lasers.

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Nanomaterials Used to Reduce Heat Generated by LED Panels

Iranian researchers from Shahid Bahonar University of Kerman in a joint research with their counterparts from Amirkabir University of Technology produced nanostructures that can be used in LED panels of TVs and computers.

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Performance Drop in Solar Cells Prevented by Nanotechnology

Iranian researchers used nanotechnology to produce solar cells that have high efficiency in the conversion of solar energy to electricity.

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