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Scientists revisit optical constants of ultrathin gold films

NanoWerk.com - Tue, 10/17/2017 - 18:02
Researchers have conducted highly precise measurements of the optical constants of ultrathin gold films with thicknesses ranging from 20 to 200 nanometers in the optical part of the electromagnetic spectrum.

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New frontiers for graphene

NanoWerk.com - Tue, 10/17/2017 - 17:52
The Graphene Flagship's international workshops aim to promote strong global links in graphene research.

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Missing link between new topological phases of matter discovered

NanoWerk.com - Tue, 10/17/2017 - 17:47
Physicists investigated a class of materials that exhibit characteristics of topological insulators. During these studies they discovered a transition between two different topological phases, one of which is ferroelectric, meaning a phase in the material that exhibits spontaneous electric polarisation and can be reversed by an external electric field.

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Atomic force microscopy in color

NanoWerk.com - Tue, 10/17/2017 - 17:42
Researchers turn atomic force microscope measurements into color images.

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Electroplating: The birth of a single nucleus caught in camera

NanoWerk.com - Tue, 10/17/2017 - 17:42
Electroplating, or electrodeposition, is one of the most important processes in chemistry, in which a metal cation in solution can be reduced to its elemental form by applying an electrical potential to an electrode.

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New optical tool to image rotational motions in live cells

NanoWerk.com - Tue, 10/17/2017 - 17:29
Researchers have developed a new optical imaging technique, Single Particle Orientation and Rotational Tracking (SPORT), to image rotational motions in live cells and ultimately target cancer cells.

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Scientists create most powerful micro-scale bio-solar cell yet

NanoWerk.com - Tue, 10/17/2017 - 17:23
New solar cell could power point-of-care medical devices in limited-resource regions.

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Conductance measurements optimize atomic layer deposition automatically

Nanotechweb.org - Tue, 10/17/2017 - 14:04
Monitoring technique characterizes nanoscale deposition in real time, guiding a genetic algorithm and resulting in more efficient deposition cycles.
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World first for reading digitally encoded synthetic molecules

NanoWerk.com - Tue, 10/17/2017 - 12:51
For the first time ever, using mass spectrometry, researchers have successfully read several bytes of data recorded on a molecular scale using synthetic polymers.

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Stiff fibres spun from slime

NanoWerk.com - Tue, 10/17/2017 - 12:13
Under the influence of shear forces, nanoparticles from the secretion of velvet worms form polymer fibres that can be recycled in water.

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Quantum physics paves the way for new chemical products

NanoWerk.com - Tue, 10/17/2017 - 12:03
Research by a molecular physicist has discovered that electrons can control chemical reactions in experiments leading to purer, cheaper chemical products.

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Spinning strands hint at folding dynamics

NanoWerk.com - Tue, 10/17/2017 - 11:58
Scientists use magnetic beads to model microscopic proteins, polymers.

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Vibrating nanoparticles interact

NanoWerk.com - Tue, 10/17/2017 - 00:08
Placing nanodisks in groups can change their vibrational frequencies.

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Chemical treatment improves quantum dot lasers

ScienceDaily.com: Nanotechnology News - Mon, 10/16/2017 - 21:26
One of the secrets to making tiny laser devices such as opthalmic surgery scalpels work even more efficiently is the use of tiny semiconductor particles, called quantum dots. In new research the ~nanometer-sized dots are being doctored, or 'doped,' with additional electrons, a treatment that nudges the dots ever closer to producing the desired laser light with less stimulation and energy loss.
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Chemical treatment improves quantum dot lasers

NanoWerk.com - Mon, 10/16/2017 - 20:50
Scientists demonstrat that by adding extra electrons into their specially designed quantum dots, they can reduce this threshold to virtually zero.

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Nanoantenna arrays power a new generation of fluorescence-based sensors

ScienceDaily.com: Nanotechnology News - Mon, 10/16/2017 - 20:21
Researchers have designed and tested a series of plasmonic nanoantenna arrays that could lead to the development of a new generation of ultrasensitive and low-cost fluorescence sensors that could be used to monitor water quality.
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Think laterally to sidestep solar cell production problems

NanoWerk.com - Mon, 10/16/2017 - 18:42
Researchers have combined and rearranged different semiconductors to create so-called lateral p-n heterojunctions - a simpler process they hope will transform the fabrication of solar cells, self-powered nanoelectronics as well as ultrathin, transparent, flexible devices.

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Nanoantenna arrays power a new generation of fluorescence-based sensors

NanoWerk.com - Mon, 10/16/2017 - 18:33
Researchers have designed and tested a series of plasmonic nanoantenna arrays that could lead to the development of a new generation of ultrasensitive and low-cost fluorescence sensors that could be used to monitor water quality.

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Major advance in nanopore detection of peptides and proteins

NanoWerk.com - Mon, 10/16/2017 - 18:07
Nanopore technology, which is used to sequence DNA, is cheap, hand-held and works in the jungle and in space. The use of this technology to identify peptides or proteins is now a step closer.

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Nanotechnology innovation safety aspects - the case of graphene

NanoWerk.com - Mon, 10/16/2017 - 16:40
Currently, most graphene-based innovations are not yet at the level of large-scale commercial production. But public and private investments into graphene and its applications in products are large and whichever production methods eventually turn out to be successful, exposure to humans or the environment somewhere along the value chain or life-cycle of the material or product should be anticipated timely. A new review paper offers suggestions on how potential nanospecific safety issues can be addressed, by who and at what stage of the innovation process.

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