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Electrical signals measurements such as the ECG (electrocardiogram) can show how the human brain or heart works. Next to electrical signals magnetic signals also reveal something about the activity of these organs. They could ...
Nanophysics
Sep 20, 2019
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How long the battery of your phone or computer lasts depends on how many lithium ions can be stored in the battery's negative electrode material. If the battery runs out of these ions, it can't generate an electrical current ...
Nanophysics
Sep 19, 2019
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What may be viewed as the world's smallest incandescent lightbulb is shining in a Rice University engineering laboratory with the promise of advances in sensing, photonics and perhaps computing platforms beyond the limitations ...
Nanophysics
Sep 19, 2019
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Single-walled carbon nanotubes should theoretically be extremely strong, but it remains unclear why their experimental tensile strengths are lower and vary among nanotubes. A team at Nagoya University, Kyoto University, and ...
Nanophysics
Sep 18, 2019
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Graphene is perfectly selective to protons and blocks even smallest ions like chlorine, University of Manchester research shows. This result will be important for the development of graphene-based membranes for applications ...
Nanophysics
Sep 18, 2019
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Physicists from the University of Groningen constructed a two-dimensional spin transistor, in which spin currents were generated by an electric current through graphene. A monolayer of a transition metal dichalcogenide (TMD) ...
Nanophysics
Sep 17, 2019
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Tools for manipulating small suspended particles such as cells, micro-particles and nanoparticles play an essential role in the advancement of fundamental science and discovery of new technologies. Especially, manipulation ...
Nanophysics
Sep 17, 2019
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Devices smaller than the width of a human hair are key to technologies for drug delivery, semiconductors, and fuel production. But current methods for fabricating these micro- and nanostructures can be expensive and wasteful.
Nanophysics
Sep 17, 2019
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Sandia National Laboratories researchers have developed tiny, gold antennas to help cameras and sensors that "see" heat deliver clearer pictures of thermal infrared radiation for everything from stars and galaxies to people, ...
Nanophysics
Sep 16, 2019
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As renewable sources such as wind and solar are quickly changing the energy landscape, scientists are looking for ways to better store energy for when it's needed. Fuel cells, which convert chemical energy into electrical ...
Nanophysics
Sep 16, 2019
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Physicists at AMOLF have managed to cool a swinging, nanosized string to near-zero temperature without using external refrigeration. In their experiment, the cooling is an intrinsic result of a 'snapshot' position measurement ...
Nanophysics
Sep 16, 2019
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Vacuum tubes initially played a central role in the development of electronic devices. A few decades ago, however, researchers started replacing them with semiconductor transistors, small electronic components that can be ...
Physicists have created a fabricate technique for spintronic devices. These high-performance, low-power devices have a promising future, so efficient ways to make them are highly sought after. The new fabrication method uses ...
Nanophysics
Sep 12, 2019
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The conductivity of dual layers of graphene greatly depends on the states of carbon atoms at their edges; a property which could have important implications for information transmissions on quantum scales.
Nanophysics
Sep 11, 2019
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Control of atomic-scale friction and adhesion is critical for effective manipulation of the motion of nano- or micro-meter scale objects at interfaces. For example, in nanotechnology controlling adhesion during the peeling ...
Nanophysics
Sep 11, 2019
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A chameleon can alter the color of its skin so it either blends into the background to hide or stands out to defend its territory and attract a mate. The chameleon makes this trick look easy, using photonic crystals in its ...
Nanophysics
Sep 11, 2019
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175
Scientists at Tomsk Polytechnic University jointly with Russian and international colleagues developed the concept for constructing an "optical vacuum cleaner." Due to its optical properties, it can trap nanoparticles from ...
Nanophysics
Sep 10, 2019
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Gold and silver are important elements in cluster chemistry. They are chemically very active and are thus expected to be useful substances in future technologies. A doctoral dissertation from University of Jyvaskyla, Finland, ...
Nanophysics
Sep 09, 2019
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A team of researchers from the Chinese Academy of Sciences, Vanderbilt University and the University of Maryland has created origami-like structures made out of graphene using scanning tunneling microscopy. In their paper ...
An international team of researchers has reported a new way to safeguard drones, surveillance cameras and other equipment against laser attacks, which can disable or destroy the equipment. The capability is known as optical ...
Nanophysics
Sep 05, 2019
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