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Updated: 3 hours 13 min ago

At the rim: Mods to nanotubes help filter salt from seawater

Tue, 02/12/2019 - 18:36
The ability of carbon nanotubes to filter sodium while still allowing water to pass through can depend on many factors, including their diameters and the interactions of electrically charged atoms on their rims.

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Laser snapshots of fullerenes show how they transform in intense infrared light

Tue, 02/12/2019 - 17:47
Physicists have irradiated buckyballs with infrared femtosecond laser pulses. Under the influence of the intense light the form of the macromolecules was changed from round to elongated.

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Scientists develop AI to predict and engineer material properties

Tue, 02/12/2019 - 12:41
Scientists have developed a machine learning approach that can predict changes to the properties of materials from straining the material.

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Finding chemicals inside a cell

Tue, 02/12/2019 - 12:14
Chemical and topographical single-cell imaging at nanoscale resolution by near-field desorption mass spectrometry.

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Phase transition dynamics in two-dimensional materials

Tue, 02/12/2019 - 11:07
Scientists have discovered the mechanism involved when transition metal dichalcogenides on metallic substrates transform from the semiconducting 1H-phase to the quasi-metallic 1T'-phase.

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Engineers develop room temperature, two-dimensional platform for quantum technology

Mon, 02/11/2019 - 23:51
Researchers have demonstrated a new hardware platform based on isolated electron spins in a two-dimensional material. The electrons are trapped by defects in sheets of hexagonal boron nitride, a one-atom-thick semiconductor material, and the researchers were able to optically detect the system's quantum states.

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Researchers use X-rays to understand the flaws of battery fast charging

Mon, 02/11/2019 - 21:15
Researchers have imaged a battery as it was quickly charged and discharged, allowing for the observation of lithium plating behavior that can inhibit the battery's long-term function.

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Next-generation optics in just two minutes of cooking time

Mon, 02/11/2019 - 20:55
One of the key building blocks of flexible photonic circuits and ultra-thin optics are metasurfaces. Engineers have now discovered a simple way of making these surfaces in just a few minutes -- without needing a clean room -- using a method already employed in manufacturing.

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Quantum strangeness gives rise to new electronics

Mon, 02/11/2019 - 20:46
Quantum interference effects can cause substantial variation in the conductance properties of molecule-scale devices. By controlling the quantum interference, researchers showed that electrical conductance of a single molecule can be fine-tuned over two orders of magnitude.

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Scientists build the smallest optical frequency comb to-date

Mon, 02/11/2019 - 17:07
Researchers built an integrated soliton microcomb operating at a repetition rate of 88 GHz using a chip-scale indium phosphide laser diode and the silicon nitride microresonator. At only 1 cubic cm in size, the device is the smallest of its kind to-date.

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Researchers find way to stabilize color of light in halide perovskites

Mon, 02/11/2019 - 15:10
Physicists has found a way to stabilize the color of light being emitted from a promising class of next-generation materials that researchers believe could be the basis for efficient and more cost-effective optoelectronic technologies that can turn light into electricity or vice versa.

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Researchers develop flags that generate energy from wind and sun

Mon, 02/11/2019 - 14:59
The novel wind and solar energy-harvesting flags have been developed using flexible piezoelectric strips and flexible photovoltaic cells.

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Highly complex two-dimensional tessellation in the molecular world

Mon, 02/11/2019 - 12:19
Scientists have developed a method to construct highly complex molecular tessellations using a single molecular building block.

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Boosting solid state chemical reactions

Mon, 02/11/2019 - 09:46
Adding olefin enables efficient solvent-free cross-coupling reactions, leading to environmentally friendly syntheses of a wide range of organic materials.

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Scientists marry gas-trapping framework to light-powered nanocatalysts

Sat, 02/09/2019 - 02:16
Researchers describe how pseudomorphic replacement, the same chemical process that turns a tree to stone, aided their synthesis of the first metal-organic framework (MOF) around light-powered aluminum nanocatalysts.

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Nanopore research hits a nerve

Sat, 02/09/2019 - 02:05
New research shows that synthetic solid-state nanopores can have finely tuned transport behaviors much like the biological channels that allow a neuron to fire.

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Researchers discover new method to quantify graphene at the cellular level

Sat, 02/09/2019 - 01:56
A recent study presents a new, combination-based way to quantify and analyze the effect of graphene at the single cell level.

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Scientists image conducting edges in a promising 2-D material

Sat, 02/09/2019 - 01:47
Experimental study on monolayer tungsten ditelluride could lead to more energy-efficient electronic devices.

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Turning a porous material's color on and off with acid

Fri, 02/08/2019 - 13:34
Stable, color-changing compound shows potential for electronics, sensors and gas storage.

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Cryo-force spectroscopy reveals the mechanical properties of DNA components

Fri, 02/08/2019 - 13:21
Physicists have developed a new method to examine the elasticity and binding properties of DNA molecules on a surface at extremely low temperatures. With a combination of cryo-force spectroscopy and computer simulations, they were able to show that DNA molecules behave like a chain of small coil springs.

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