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Nanowerk Nanotechnology News



Nanotechnology news headlines from Nanowerk



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Flaws in zinc oxide films add magnetic twist

Fri, 21 Jul 2017 05:01:47 -0400

Why does a non-magnetic material cause electrons to behave like they are interacting with a magnet?

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Hydrogen production in a confined space

Fri, 21 Jul 2017 01:49:56 -0400

Chemists have developed a method to confine noble metal nanoparticles in layered, quasi-two-dimensional (2D) materials for efficient hydrogen production.

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USDA announces $4.6 million for nanotechnology research

Fri, 21 Jul 2017 01:40:03 -0400

The U.S. Department of Agriculture's (USDA) National Institute of Food and Agriculture (NIFA) announced 13 grants totaling $4.6 million for research on the next generation of agricultural technologies and systems to meet the growing demand for food, fuel, and fiber.

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Pulses of electrons manipulate nanomagnets and store information

Thu, 20 Jul 2017 14:50:37 -0400

Scientists use electron pulses to create and manipulate nanoscale magnetic excitations that can store data.

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Battery breakthrough using 2016 Nobel Prize molecule

Thu, 20 Jul 2017 14:37:11 -0400

Scientists report a molecular pulley binder for high-capacity silicon anodes of lithium ion batteries.

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3-D imaging of surface chemistry in confinement

Thu, 20 Jul 2017 14:29:42 -0400

Researchers have developed an optical imaging tool to visualize surface chemistry in real time. They imaged the interfacial chemistry in the microscopically confined geometry of a simple glass micro-capillary.

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Nanomaterials strengthen 3D-printed parts

Thu, 20 Jul 2017 11:12:26 -0400

Scientists discovered a way to make 3-D printed parts stronger and immediately useful in real-world applications.

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Freestyle nanoswimmers offer new opportunities for biomedical nanobots

Thu, 20 Jul 2017 11:03:28 -0400

Researchers present a two-arm nanorobot that achieves a high-speed 'freestyle' swimming motion, a new microscale propulsion mode that has not been observed in nature.

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Manipulating plasmonic nanoantennas in water enhances fluorescence

Thu, 20 Jul 2017 09:55:54 -0400

Researchers have demonstrated the application of an electrostatically confined gold nanoantenna for plasmonic enhancement of fluorescence in aqueous environments.

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Semiliquid chains pulled out of a sea of microparticles

Thu, 20 Jul 2017 09:37:49 -0400

An electrode brought to the surface of a liquid that contains microparticles can be used to pull out surprisingly long chains of particles. Curiously enough, the particles in the chains are held together by a thin layer of liquid that covers them.

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Nanotechnology clothes will treat eczema

Thu, 20 Jul 2017 06:08:37 -0400

Tiny capsules embedded in the clothes we wear could soon be used to counteract the rise of sensitive skin conditions.

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First direct observation and measurement of ultra-fast moving vortices in superconductors

Thu, 20 Jul 2017 05:33:28 -0400

New technique can be used to test designs for reducing vortex motion and improving superconductors' properties.

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Graphene for batteries, supercapacitors and other energy storage

Thu, 20 Jul 2017 05:19:45 -0400

Graphene currently is the most studied material on the planet - this is especially true for charge storage and the results from many laboratories confirm its potential to change today's energy-storage landscape. Specifically, graphene could present several new features for energy-storage devices, such as smaller capacitors, completely flexible and even rollable energy-storage devices, transparent batteries, and high-capacity and fast-charging devices.




Three-dimensional nanosheet electrodes for efficient electrochemical and photoelectrochemical water splitting

Thu, 20 Jul 2017 03:21:00 -0400

Developing highly active electrocatalysts for photoelectrochemical water splitting is critical to bringing solar/electrical-to-hydrogen energy conversion processes into reality. Researchers have developed a novel 3D hierarchical hybrid electrocatalyst grown on electrochemically exfoliated graphene. The researchers then further integrated the hybrid nanosheets with a macroporous silicon photocathode, and the results show that it can enable highly active solar-driven photoelectrochemical water splitting in both basic media and real river water.




Nano-indented cement shows unique properties

Thu, 20 Jul 2017 03:06:06 -0400

Scientists have determined that no matter how large or small a piece of tobermorite is, it will respond to loading forces in precisely the same way. But poking it with a sharp point will change its strength.

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Indestructible virus yields secret to creating incredibly durable materials

Wed, 19 Jul 2017 12:07:29 -0400

Cancer drugs without side effects? Sturdier buildings? This virus might help.

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Nanoparticles could spur better LEDs, invisibility cloaks

Wed, 19 Jul 2017 12:01:10 -0400

In an advance that could boost the efficiency of LED lighting by 50 percent and even pave the way for invisibility cloaking devices, a team of researchers has developed a new technique that peppers metallic nanoparticles into semiconductors.

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Innovative nanosensor for disease diagnosis

Wed, 19 Jul 2017 09:09:01 -0400

Scientists developed diagnostic sensors using protein-encapsulated nanocatalysts, which can diagnose certain diseases by analyzing human exhaled breath.

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Manipulating electron spins without loss of information

Wed, 19 Jul 2017 08:10:54 -0400

The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances.

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A powerful laser system for driving sophisticated experiments in attosecond science

Wed, 19 Jul 2017 07:55:16 -0400

This new laser system enables an entirely new class of experiments in simple atomic and small molecular systems, as well as high fidelity investigations of more complex molecules.

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NanoVelcro microchips could someday noninvasively diagnose prenatal conditions

Wed, 19 Jul 2017 07:46:51 -0400

Scientists have developed a device that provides sensitive results, but in a less invasive way: a blood test.

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Nano-in-micro stem cell delivery could rescue blood flow after injury

Wed, 19 Jul 2017 07:43:32 -0400

Researchers combine micro and nano approaches to improve stem cell therapies and outcomes after ischemia, or inadequate blood supply.

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Nanoparticle-based glue to seal bleeding and guide surgery

Wed, 19 Jul 2017 07:07:20 -0400

First nanoparticle-based adhesive with imaging contrast effect in CT and ultrasound was successfully tested in animals and showed less toxicity than the FDA-approved glue CA-Lp.

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Titanium dioxide nanoparticles can exacerbate colitis

Wed, 19 Jul 2017 05:02:25 -0400

When intestinal cells absorb titanium dioxide particles, this leads to increased inflammation and damage to the intestinal mucosa in mice with colitis.

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Cell-permeable nanobodies

Wed, 19 Jul 2017 03:42:44 -0400

Scientists report on the synthesis and applications of nanobodies they introduced into living cells.

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Capitalizing on nanotechnology to address fungal infections topically

Wed, 19 Jul 2017 02:47:55 -0400

Cutaneous fungal infections involving the skin, hair, or nails affect an estimated 25% of the world's population, and accounts for millions of outpatient visits. Currently, deep fungal infection require systemic therapy, which can pose a range of side effects or drug interactions depending on the clinical scenario. Investigators now have demonstrated the antifungal activity of nitric oxide generating nanoparticles against dermatophytes well known to cause invasive cutaneous infections.




Supramolecular materials with a time switch

Wed, 19 Jul 2017 02:28:26 -0400

Self-disposing supramolecular materials with a tunable lifetime.

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Stimuli-responsive 'cluster bombs' for tumor therapy

Tue, 18 Jul 2017 10:45:55 -0400

Researchers have designed a a pH-responsive size-changeable 'Cluster Bomb' based on mesoporous silica nanoparticle and peptide tLyP-1-modified tungsten disulfide quantum dots programmed tumor therapy.

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A breakthrough in 'dead layer' of antiferromagnet

Tue, 18 Jul 2017 10:11:47 -0400

Researchers made a breakthrough to solve the 'dead layer' effect problem in synthetic antiferromagnets.

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No amplification needed: Ultrasensitive DNA quantification by light scattering

Tue, 18 Jul 2017 10:01:19 -0400

Traces of biomolecules such as DNA can be detected with a new 'dynamic' technique based on the observation of association and dissociation events of gold nanoparticles. If the desired DNA sequence is present, it can reversibly bind two nanoparticles together.

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The glass transition caught in the act

Tue, 18 Jul 2017 08:43:03 -0400

Islands of cooperating atoms jam like ice floes as a liquid becomes like glass.

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Harnessing light to drive chemical reactions

Tue, 18 Jul 2017 08:13:33 -0400

A new study shows how a light-harvesting metal transfers energy to a catalytic metal, opening the way for better catalyst designs.

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Carbon nanotube wools for greenhouse gas mitigation and bullet-proof clothing

Tue, 18 Jul 2017 06:28:34 -0400

Turning atmospheric carbon dioxide (CO2) into valuable products seems like a great idea to help remove this greenhouse gas to mitigate climate change. Using a process of molten carbonate electrolytic transformation of CO2 to carbon nanotubes, researchers have now demonstrated 'carbon nanotube wool'. These are the first carbon nanotubes that can be directly woven into a cloth as they are of macroscopic length (over 1mm) and are cheap to produce. The sole reactant to produce the carbon nanotube wools is carbon dioxide. This transforms CO2 from a pollutant into a useful, valuable resource.




Precision work: defect-free coatings for silicon spheres

Tue, 18 Jul 2017 03:17:52 -0400

Researchers have recently succeeded in homogeneously coating spherical surfaces so that the roughness of the layers remains below a nanometer.

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Researchers develop fast, cheap method to make supercapacitor electrodes for electric cars, high-powered lasers

Mon, 17 Jul 2017 15:00:53 -0400

A team of engineers thinks they've come up with a process for manufacturing supercapacitor electrode materials that will meet stringent industrial and usage demands.

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Breathable, wearable nanomesh electronics on skin for long-term health monitoring

Mon, 17 Jul 2017 11:12:10 -0400

New nanomesh structure lets skin breathe, prevents inflammation.

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Researchers develop a novel type of optical fiber that preserves the properties of light

Mon, 17 Jul 2017 09:58:19 -0400

The results of this work are promising for constructing high-power pulsed fiber lasers and amplifiers, as well as polarization-sensitive sensors.

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Studying argon gas trapped in two-dimensional array of nanocages

Mon, 17 Jul 2017 09:49:50 -0400

Understanding how individual atoms enter and exit the nanoporous frameworks could help scientists design new materials for gas separation and nuclear waste remediation.

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Reduced oxygen nanocrystalline materials show improved performance

Mon, 17 Jul 2017 09:41:04 -0400

Researchers have found that reducing oxygen in some nanocrystalline materials may improve their strength and durability at elevated temperatures, a promising enhancement that could lead to better biosensors, faster jet engines, and greater capacity semiconductors.

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A new technology for porous material production

Mon, 17 Jul 2017 09:14:08 -0400

A new technology for producing unsinkable material from an aluminum alloy.

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