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Watching plasmons break bonds in single molecules

Nanotechweb.org - Wed, 05/09/2018 - 12:59
Researchers induce chemical reactions in single molecules by exciting plasmons and monitor the process in real time using scanning tunnelling microscopy
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Studying strain effects in 2D materials using Kelvin Probe Microcopy

NanoWerk.com - Wed, 05/09/2018 - 10:03
At the nanoscale, materials become exceedingly sensitive to external perturbations. This is quite a relevant factor for wearable and flexible applications, where materials would always bear a certain degree of variable strain/stress. So far it has been very difficult to characterize strain effects in 2D materials, which is crucial to understanding strain-matter interactions. Researchers demonstrate that this limitation can be overcome by using a technique based on Kelvin Probe Microcopy.

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Engineers studying nanodefects suspected of causing early failures of electrical materials

NanoWerk.com - Tue, 05/08/2018 - 19:07
Scientists are working to understand how those nanoscale defects, when subject to extreme electric fields, evolve into material failures. Those failures turn insulators, which do not conduct electricity, into materials that allow some current to flow.

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Polarized light: A simple route to highly chiral materials

NanoWerk.com - Tue, 05/08/2018 - 18:58
Researchers have successfully created chiral nanostructures from particles of gold. The trick was to use circularly polarized light to generate electric fields, which localize differently depending on LCP or RCP. This in turn drove the chiral deposition of a dielectric material.

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Polarized light: A simple route to highly chiral materials

ScienceDaily.com: Nanotechnology News - Tue, 05/08/2018 - 17:50
Researchers in Japan have successfully created chiral nanostructures from particles of gold. The trick was to use circularly polarized light to generate electric fields.
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Fascinating fractals appear in graphene superlattices

Nanotechweb.org - Tue, 05/08/2018 - 14:10
Applying a magnetic field to the carbon material produces recurring delocalized Bloch states
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Gallenene grows on silicon

Nanotechweb.org - Tue, 05/08/2018 - 14:07
Researchers successfully take on the challenge of growing gallenene on silicon using a buffer layer
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Bone goes fractal

Nanotechweb.org - Tue, 05/08/2018 - 12:58
New high-resolution microscopy images reveal hitherto unseen crystal structure
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High-performance graphene sheets for engineering high-tech materials

NanoWerk.com - Tue, 05/08/2018 - 12:50
Today, the common engineering solution to manufacture carbon fiber reinforced plastic composite materials is based on cross-plied carbon fibers in a polymer resin requiring high temperature cure. In contrast, researchers now have demonstrated cross-linked graphene sheets that are manufacturable from graphene platelets, which are resin-free, processable at low temperature, and contain less than 10 wt.% additives. This advance provides a universal strategy for converting inexpensive graphene platelets into high performance polymer-free graphene sheets for the development of next-generation lightweight multifunctional materials.

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Unexpected behaviour of atom clouds challenges existing theories

NanoWerk.com - Tue, 05/08/2018 - 11:16
Experiments with ultra-cold atoms have shown surprising results: coupled atom clouds synchronize within milliseconds. This effect cannot be explained by standard theories.

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Transistor fabrication onto curved surface means turn toward better diabetes therapy

NanoWerk.com - Tue, 05/08/2018 - 10:24
The nanotechnology advance is a key step toward an artificial pancreas: a catheter that can detect blood sugar levels and transmit the info to a wearable, computerized insulin pump.

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Scientists make strong, super-tough carbon sheets at low temperature

NanoWerk.com - Mon, 05/07/2018 - 23:51
An international research team has developed high-strength, super-tough sheets of carbon that can be inexpensively fabricated at low temperatures.

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Scientists make strong, super-tough carbon sheets at low temperature

ScienceDaily.com: Nanotechnology News - Mon, 05/07/2018 - 23:31
Scientists have developed high-strength, super-tough sheets of carbon that can be inexpensively fabricated at low temperatures. The team made the sheets by chemically stitching together platelets of graphitic carbon, which is in certain ways similar to the graphite found in the soft 'lead' of an ordinary pencil.
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Hematene joins parade of new 2D materials

ScienceDaily.com: Nanotechnology News - Mon, 05/07/2018 - 21:46
An international team has created two-dimensional hematene, an atomically thin form of the common iron oxide known as hematite. The new material shows promise for 2-D magnetism and efficient light-assisted water splitting.
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Chemists develop improved method to create artificial photosynthesis

NanoWerk.com - Mon, 05/07/2018 - 19:39
A team of chemistry and chemical engineering researchers has developed a method of creating materials for artificial photosynthesis that is more efficient and cost-effective than current methods.

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Built for speed: DNA nanomachines take a (rapid) step forward

NanoWerk.com - Mon, 05/07/2018 - 19:23
In a new study, researchers describe an innovative DNA walker, capable of rapidly traversing a prepared track. Rather than slow, tentative steps across a surface, the DNA acrobat cartwheels head over heels, covering ground 10- to 100-fold faster than previous devices.

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Wrap an electrode material for Li-ion battery into the inner spacing of carbon nanotube

ScienceDaily.com: Nanotechnology News - Mon, 05/07/2018 - 19:18
Researchers have designed a unique lithium ion battery (LIB) electrode, where red phosphorus is stuffed into carbon nanotubes (CNTs). They revealed reversible electrochemical reactions and relatively high structural stability of red phosphorus in the nanotubes even after the fiftieth charge-discharge cycle. The charge-discharge capacities are twice or even higher than that of graphite in commercial LIBs. Therefore, a new electrode material for LIBs with high capacity is proposed.
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Chemical sensing chip sniffs out cocaine within minutes

ScienceDaily.com: Nanotechnology News - Mon, 05/07/2018 - 19:18
What if you could test for cocaine, opioids and marijuana as quickly as a breathalyzer identifies alcohol? A new, low-cost chemical sensing chip brings us one step closer to this portable tech, which has long been on the wish list of police officers and others looking to monitor drug use and curb dangerous driving.
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The apparent inner calm of quantum materials

NanoWerk.com - Mon, 05/07/2018 - 19:12
Physicists have confirmed a theory on topological phase transitions, a field of research initiated by the 2016 Nobel Prize-winners in physics.

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Hematene joins parade of new 2D materials

NanoWerk.com - Mon, 05/07/2018 - 19:07
In the wake of its recent discovery of a flat form of gallium, an international team has created another two-dimensional material that the researchers said could be a game changer for solar fuel generation.

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