Materials having excess electrons are typically conductors. However, moire patterns -- interference patterns that typically arise when one object with a repetitive pattern is placed over another with a similar pattern -- can suppress electrical conductivity.
Feb 15th, 2021
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Engineers have developed a soft, stretchy skin patch that can be worn on the neck to continuously track blood pressure and heart rate while measuring the wearer?s levels of glucose as well as lactate, alcohol or caffeine.
Feb 15th, 2021
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Engineers develop polymer cores that redirect light from any source to solar cells.
Feb 15th, 2021
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Nanoscientists develop adaptive microelectronics that can move independently according to sensor data and align themselves specifically for activities - possible applications in biomedicine and bioneural interfacing.
Feb 15th, 2021
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Theoretical calculations predict that the compound known as 'kagome graphene' should have completely different properties to graphene. Kagome graphene consists of a regular pattern of hexagons and equilateral triangles that surround one another.
Feb 15th, 2021
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Using an advanced technique, scientists have demonstrated that a chemical reaction powered by light takes place ten thousand times faster at the air-water interface - what we usually call the water surface - than in the bulk of the water, even when the light has equivalent energy.
Feb 15th, 2021
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Interactions between individual molecules on a metal surface extend for surprisingly large distances - up to several nanometers. A new study of the changing shape of electronic states induced by these interactions, has potential future application in the use of molecules as individually addressable units.
Feb 15th, 2021
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Fast and energy-efficient future data processing technologies are on the horizon after an international team of scientists successfully manipulated magnets at the atomic level.
Feb 12th, 2021
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Hydrogen for energy use can be extracted in an environmentally friendly way from water and sunlight, using photocatalytic composite polymer nanoparticles. In laboratory tests, these 'polymer dots' showed promising performance and stability alike.
Feb 12th, 2021
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Researchers show that the light emitted by a single molecule can be detected with a low-cost optical setup. Their prototype could facilitate medical diagnostics.
Feb 12th, 2021
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Researchers have created a completely new type of plasma by combining state-of-the-art technologies using ultrashort laser pulses and ultracold atomic gases.
Feb 12th, 2021
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Scientists have found out that semiconductors can be converted to metals and back more easily and more quickly than previously thought. This discovery may increase the processing speed and simplify the design of many common technological devices.
Feb 12th, 2021
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For the first time, a team of scientists has succeeded in capturing in real time the first few milliseconds in the life of a gold coating as it forms on a polymer.
Feb 12th, 2021
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Special probes, germanium nanospheres, enable a higher resolution of displacements and forces that motor proteins generate.
Feb 12th, 2021
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Physicists have studied a quantum point contact between two conductors with external oscillating fields applied to the contact. They found that, for some types of contacts, an increase in the oscillation frequency above a critical value reduced the current to zero - a promising mechanism that can help create nanoelectronics components.
Feb 11th, 2021
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The device is stretchy enough that you can wear it like a ring, a bracelet or any other accessory that touches your skin. It also taps into a person's natural heat - employing thermoelectric generators to convert the body's internal temperature into electricity.
Feb 11th, 2021
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