English news

Nanoparticles out of the flame

NanoWerk.com - Mon, 05/20/2019 - 17:58
To improve car engines, produce nanomaterials or design rocket engines, it is essential to understand combustion processes.
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Self-organizing molecules: Cups with attoliter volume

NanoWerk.com - Mon, 05/20/2019 - 17:53
They look like interlocking egg cups, but a hen's egg is 100,000 times as thick as one of the miniature cups: Scientists have made polymers to form themselves into tiny cups on their own.
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Synthesis of helical ladder polymers

ScienceDaily.com: Nanotechnology News - Mon, 05/20/2019 - 17:34
Researchers have synthesized helical ladder polymers with a well-defined cyclic repeating unit and one-handed helical geometry.
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Room-temperature polariton nano-laser

ScienceDaily.com: Nanotechnology News - Mon, 05/20/2019 - 17:34
Researchers have developed a polariton nano-laser operating at room temperature.
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Scientists develop polariton nano-laser operating at room temperature

NanoWerk.com - Mon, 05/20/2019 - 17:27
Researchers demonstrate a room temperature polariton nano-laser, providing the crucial path of related research such as polariton physics at the nanoscale and also applications in quantum information systems.
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Hard carbon nanofiber aerogel becomes superelastic

NanoWerk.com - Mon, 05/20/2019 - 17:22
Inspired by the flexibility and rigidity of natural spider silks webs, researchers developed a simple and general method to fabricate superelastic and fatigue resistant hard carbon aerogels with nanofibrous network structure by using resorcinol-formaldehyde resin as a hard carbon source.
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Anti-counterfeiting with carbon nanotubes

NanoWerk.com - Mon, 05/20/2019 - 16:01
Researchers have developed a physically unclonable function based on carbon nanotubes with potential applications in security and anti-counterfeiting.
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On route to artificial retinas with microcavity perovskite photoreceptors

NanoWerk.com - Mon, 05/20/2019 - 11:10
Electronic device versions of the human eye's photoreceptors could potentially be used in a wide range of applications from robotic humanoid vision to artificial retina implantation for vision restoration or even vision extension into a wider range of wavelength. Researchers have now demonstrated that high-performance filterless artificial human photoreceptors can be realized by integrating a novel optical metal/dielectric/metal microcavity structure with vacuum-deposited perovskite photoresponse devices. These easy-to-fabricate artificial photosensors mimic the spectral responses of human color cones and rods.
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'Cyborg' microfilter actively cleans decontaminated water

NanoWerk.com - Mon, 05/20/2019 - 11:09
New work on self-propelled biohybrid microrobots has been inspired by recent developments of biohybrid cyborgs that integrate self-propelling bacteria with functionalized synthetic nanostructures to transport materials. Taking inspiration from the science fiction concept of a cybernetic organism, or cyborg, researchers developed a self-propelled biohybrid microrobot, named rotibot, employing the marine microorganism rotifer as their engine.
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Applications of carbon materials derived from metal-organic frameworks (MOFs)

NanoWerk.com - Mon, 05/20/2019 - 10:55
Directly carbonizing from organic precursors is the most frequently used method to prepare nanoporous carbons, widely used as electrode materials, due to its flexibility and simplicity. These materials present certain drawbacks, though, such as low surface areas, disordered structures, and non-uniform sizes, which will greatly limit their applications. However, researchers found that carbon materials derived from metal-organic frameworks (MOFs) could overcome these limitations. A review summarizes the applications of MOF-derived carbon materials.
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Scientists report a new strategy to combine microwave thermal therapy with infection inhibition to effectively treat cancer

NanoWerk.com - Mon, 05/20/2019 - 10:55
Scientists propose a novel tumor treatment strategy for simultaneous ablating tumor and inhibiting infection by using specially designed biodegradable metal-organic frameworks (MOFs). The strategy of simultaneous eradicating tumor tissue and inhibiting infection can inspire the researchers with novel progressing technologies for tumor therapy. This novel strategy opens the door for developing the nanomaterials that are sensitive to microwave irradiation and inhibiting infection to achieve noninvasive combined treatment in clinical practice.
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Manipulating atoms one at a time with an electron beam

NanoWerk.com - Sun, 05/19/2019 - 11:16
Researchers have a method that can reposition atoms with a highly focused electron beam and control their exact location and bonding orientation. The finding could ultimately lead to new ways of making quantum computing devices or sensors, and usher in a new age of atomic engineering.
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Nanoscale sculpturing leads to unusual packing of nanocubes

NanoWerk.com - Sat, 05/18/2019 - 00:37
Cube-shaped nanoparticles with thick shells of DNA assemble into a never-before-seen 3-D 'zigzag' pattern that breaks orientational symmetry; understanding such nanoscale behavior is key to engineering new materials with desired organizations and properties.
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Nanoscale sculpturing leads to unusual packing of nanocubes

ScienceDaily.com: Nanotechnology News - Sat, 05/18/2019 - 00:10
Scientists found that cubic nanoparticles surrounded by thick DNA shells pack in a never-before-seen 'zigzag' pattern.
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Ultra-clean fabrication platform produces nearly ideal 2D transistors

ScienceDaily.com: Nanotechnology News - Fri, 05/17/2019 - 21:35
Columbia Engineering researchers report that they have demonstrated a nearly ideal transistor made from a 2D material stack -- with only a two-atom-thick semiconducting layer -- by developing a completely clean and damage-free fabrication process. Their method shows vastly improved performance compared to 2D semiconductors fabricated with a conventional process, and could provide a scalable platform for creating ultra-clean devices in the future.
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Physicists found new way to optimize nanoparticles and light interaction

NanoWerk.com - Fri, 05/17/2019 - 20:12
Scientists describe, for the first time, new features of dielectric nanoparticles' optical response using improved method for electromagnetic field analysis that can take into account more complex configurations of bias currents inside the objects. These effects help to better understand the processes in nanoparticles and adjust their behavior for more efficient light control in devices such as nanolasers or sensors.
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Ultra-clean fabrication platform produces nearly ideal 2D transistors

NanoWerk.com - Fri, 05/17/2019 - 19:28
Engineers develop a clean, damage-free fabrication process that creates pristine transistors made from 2D material stacks.
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Microfluidic device may help researchers better understand metastatic cancer

NanoWerk.com - Fri, 05/17/2019 - 17:29
Instead of searching for a needle in a haystack, what if you were able to sweep the entire haystack to one side, leaving only the needle behind? That's the strategy researchers followed in developing a new microfluidic device that separates elusive circulating tumor cells from a sample of whole blood.
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Nanocatalysts speed up the decomposition of chemical residues in contaminated water

NanoWerk.com - Fri, 05/17/2019 - 15:55
Using multiferroic nanoparticles, researchers have succeeded in inducing the decomposition of chemical residues in contaminated water. Here, the nanoparticles are not directly involved in the chemical reaction but rather act as a catalyst, speeding up the conversion of the substances into harmless compounds.
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'Ant bridge'-inspired nanoparticle assembly fixes broken electrical circuits

NanoWerk.com - Fri, 05/17/2019 - 15:43
Inspired by the swarm behavior of ants, scientists have developed a nanoparticle self-assembly system that can fix broken electrical circuits.
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