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Scientists fine-tune carbon nanotubes for flexible, fingertip-wearable terahertz imagers

NanoWerk.com - Thu, 06/28/2018 - 11:36
Researchers have developed flexible terahertz imagers based on chemically 'tunable' carbon nanotube materials. The findings expand the scope of terahertz applications to include wrap-around, wearable technologies as well as large-area photonic devices.

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Thermal camouflage disguises hot and cold

ScienceDaily.com: Nanotechnology News - Thu, 06/28/2018 - 00:05
Hunters don camouflage clothing to blend in with their surroundings. But thermal camouflage - or the appearance of being the same temperature as one's environment - is much more difficult. Now researchers have developed a system that can reconfigure its thermal appearance to blend in with varying temperatures in a matter of seconds.
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The ultimate 'smell test': Device sends rotten food warning to smartphones

ScienceDaily.com: Nanotechnology News - Thu, 06/28/2018 - 00:05
When it comes to the 'smell test,' the nose isn't always the best judge of food quality. Now scientists report that they have developed a wireless tagging device that can send signals to smartphones warning consumers and food distributors when meat and other perishables have spoiled. They say this new sensor could improve the detection of rotten food so it is tossed before consumers eat it.
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Tricky feat with stand-up molecule

ScienceDaily.com: Nanotechnology News - Thu, 06/28/2018 - 00:04
Scientists have achieved a new level of precision working with single molecules. They succeeded in placing an ultrathin molecule in an upright position on a flat layer of silver atoms -- and the molecule remained standing instead of reverting to its naturally favored position. The artificial structure illustrates the potential of novel molecular fabrication methods.
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Finding the right balance for catalysts in the hydrogen evolution reaction

ScienceDaily.com: Nanotechnology News - Thu, 06/28/2018 - 00:04
A collaboration has optimized the balance between the catalytic activity in hydrogen generation and stability of metal nanoparticles coated with different numbers of graphene layers. The team found that coating the catalyst nanoparticles with three to five graphene layers provided samples that displayed high catalytic activity in hydrogen evolution as well as high stability in acidic solution. These findings should aid the development of economical processes for large-scale hydrogen production.
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BNAs improve performance of Li-ion batteries

ScienceDaily.com: Nanotechnology News - Thu, 06/28/2018 - 00:04
Recent research has investigated the effect of hierarchical Bi2MoO6 nanosheet arrays on the performance of Li-ion batteries (LIBs) and found that it improves the cycle stability and capacity and is expected to be used in portable electronic devices in the future.
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Study yields a new scale of earthquake understanding

ScienceDaily.com: Nanotechnology News - Thu, 06/28/2018 - 00:02
Nanoscale knowledge of the relationships between water, friction and mineral chemistry could lead to a better understanding of earthquake dynamics, researchers said in a new study. Engineers used microscopic friction measurements to confirm that, under the right conditions, some rocks can dissolve and may cause faults to slip.
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Tricky feat with stand-up molecule

NanoWerk.com - Wed, 06/27/2018 - 20:49
Researchers have achieved a new level of precision working with single molecules. They succeeded in placing an ultrathin molecule in an upright position on a flat layer of silver atoms - and the molecule remained standing instead of reverting to its naturally favoured position.

Categories: English news

Finding the right balance for catalysts in the hydrogen evolution reaction

NanoWerk.com - Wed, 06/27/2018 - 19:19
Researchers optimize the tradeoff between catalyst activity and stability in acidic liquids.

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BNAs improve performance of Li-ion batteries

NanoWerk.com - Wed, 06/27/2018 - 18:04
Scientists investigated the effect of hierarchical Bi2MoO6 nanosheet arrays growing on three-dimensional Ni foam synthesized by one-step template-free route.

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Composite material mimics color changes of living organisms

NanoWerk.com - Wed, 06/27/2018 - 16:45
Researchers have developed a composite material that, by adjusting its composition and exposing it to different types of light, can mimic animals' changes in color.

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The ultimate 'smell test': Device sends rotten food warning to smartphones

NanoWerk.com - Wed, 06/27/2018 - 16:39
Scientists report that they have developed a wireless tagging device that can send signals to smartphones warning consumers and food distributors when meat and other perishables have spoiled.

Categories: English news

Thermal camouflage disguises hot and cold

NanoWerk.com - Wed, 06/27/2018 - 15:23
A new type of camouflage makes a human hand invisible to a thermal camera.

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How to gather many merry people at a party?

NanoWerk.com - Wed, 06/27/2018 - 10:14
Scientists have managed to control the photon energy density inside opaque materials such as white paint.

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Research shows graphene forms electrically charged crinkles

NanoWerk.com - Wed, 06/27/2018 - 10:02
Researchers have discovered another peculiar and potentially useful property of graphene, one-atom-thick sheets of carbon, that could be useful in guiding nanoscale self-assembly or in analyzing DNA or other biomolecules.

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Graphene forms electrically charged crinkles

ScienceDaily.com: Nanotechnology News - Wed, 06/27/2018 - 08:30
Gently compressed stacks of graphene form sharp crinkles that carry an electric charge, which could be useful in nanoscale self-assembly and other applications.
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Sintering atomically thin materials with ceramics now possible

NanoWerk.com - Tue, 06/26/2018 - 23:36
For the first time, researchers have created a nanocomposite of ceramics with a two-dimensional material that opens the door to new designs of nanocomposites with a variety of applications, such as solid-state batteries thermoelectrics, varistors, catalysts, chemical sensors and much more.

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DNA drives design principles for lighter, thinner optical displays

NanoWerk.com - Tue, 06/26/2018 - 23:31
Lighter gold nanoparticles could replace thicker, heavier layered polymers used in displays? back-reflectors.

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Fluorescence imaging technique goes from micro to macro, moves closer to clinic

NanoWerk.com - Tue, 06/26/2018 - 20:02
FLIM used to analyze whole mouse tumor with cellular resolution.

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Nanoscale membrane both isolates and couples living and non-living catalysts

NanoWerk.com - Tue, 06/26/2018 - 19:55
Innovation paves the way for scaling up biohybrid systems to synthesize fuels, chemicals.

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