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Nanowerk Nanotechnology News

Nanotechnology news headlines from Nanowerk

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New study reveals the mystery behind the formation of hollowed nanoparticles during metal oxidation

Sat, 22 Apr 2017 04:32:39 -0400

If carefully controlled, the same process that creates rust - metal oxidation - could offer scientists ways to advance state-of-the-art battery or drug delivery technologies.


Novel nanotube structure strengthens thin films for flexible electronics

Fri, 21 Apr 2017 15:49:32 -0400

Reflecting the structure of composites found in nature and the ancient world, researchers have synthesized thin carbon nanotube textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.


Two-dimensional melting of hard spheres experimentally unravelled after 60 years

Fri, 21 Apr 2017 12:29:38 -0400

First definitive experimental evidence of two-dimensional melting of hard spheres.


Graphene/CNT sensor could aid in detecting nuclear threats

Fri, 21 Apr 2017 10:33:08 -0400

A novel detector could dramatically change the manner and accuracy with which we are able to detect nuclear threats.


New approach may accelerate design of high-power batteries

Fri, 21 Apr 2017 10:05:08 -0400

Researchers describe a mathematical model for designing new materials for storing electricity. The model could be a huge benefit to chemists and materials scientists, who traditionally rely on trial and error to create new materials for batteries and capacitors.


Researchers develop 20 times faster biosensor

Fri, 21 Apr 2017 10:00:40 -0400

Researchers have developed a biosensor platform which has 20 times faster detection capability than the existing biosensors using magnetic patterns resembling a spider web.


Molecular libraries for organic light-emitting diodes

Fri, 21 Apr 2017 09:54:01 -0400

By means of a new screening process, it is now possible to identify more quickly lead structures with superior luminescence and charge-transport properties.


Electrochemical performance of lithium-ion capacitors

Fri, 21 Apr 2017 09:49:35 -0400

Pre-lithiated multiwalled carbon nanotubes and activated carbon materials were used as anode and cathode respectively for Lithium-ion capacitors (LICs). The pre-lithiatiation was performed using internal short circuit approach. The LIC showed excellent supercapacitor performance.


Nanoimprinted hyperlens array: Paving the way for practical super-resolution imaging

Fri, 21 Apr 2017 09:43:57 -0400

New research has demonstrated a scalable and reliable fabrication process of a large scale hyperlens device based on direct pattern transfer techniques.


Quantum mechanics is complex enough, for now...

Fri, 21 Apr 2017 09:37:01 -0400

Physicists have searched for deviations from standard quantum mechanics, testing whether quantum mechanics requires a more complex set of mathematical rules. To do so a research team designed a new photonic experiment using exotic metamaterials. Their experiment supports standard quantum mechanics and allows the scientists to place bounds on alternative quantum theories.


One small change makes solar cells more efficient

Fri, 21 Apr 2017 07:39:55 -0400

Scientists can significantly improve the performance of quantum dot solar cells by adding small amounts of alternate metals.


Ultrafast imaging reveals the electron's new clothes

Fri, 21 Apr 2017 07:32:14 -0400

This work offers strong evidence for the formation of polarons that are important for understanding energy transport in complex materials.


Super-resolution microscopy of hydrogels

Fri, 21 Apr 2017 03:55:01 -0400

A new NSF CAREER award to study the structure of hydrogels - jelly-like materials that have some of the properties of solids, but are largely composed of water.


Wood filter with added nanoparticles removes toxic dye from water

Fri, 21 Apr 2017 03:50:06 -0400

Engineers added nanoparticles to wood, then used it to filter toxic dyes from water.


A more fundamental approach to correlation

Fri, 21 Apr 2017 03:42:41 -0400

A method for calculating physical effects in materials with strong interactions between their electrons holds promise for analyzing these intriguing materials.


Electronic 'cyclones' at the nanoscale

Thu, 20 Apr 2017 13:43:13 -0400

By careful synthesis of ultrafine layered structures or superlattices, built from layers of lead titanate and strontium titanate, researchers discovered they could create electrical spirals, called polar vortices, similar to the rotating vortices observed in magnetic systems.


New quantum liquid crystals may play role in future of computers

Thu, 20 Apr 2017 13:36:39 -0400

New state of matter may have applications in ultrafast quantum computers.


Finding order and structure in the atomic chaos where materials meet

Thu, 20 Apr 2017 13:30:15 -0400

Materials science researchers have developed a model that can account for irregularities in how atoms arrange themselves at the so-called 'grain boundaries' - the interface where two materials meet.


Clean water from a plant-based membrane

Thu, 20 Apr 2017 10:27:46 -0400

A team of researchers has developed a plant-derived material that can be used to purify water potentially far more effectively than current petroleum-based membrane materials.


Engineering technique is damaging materials research reveals

Thu, 20 Apr 2017 10:23:09 -0400

Widely used microscopy technique has unintended consequences new research reveals.


Sodium-ion batteries become fully stretchable

Thu, 20 Apr 2017 10:14:38 -0400

Researchers have demonstrated an all-stretchable-component sodium-ion full battery, designed and manufactured by integrating stretchable graphene-modified PDMS sponge current collector, sodium-ion conducting gel polymer separator, and elastic PDMS substrate. This first-of-its-kind battery design maintains better mechanical properties compared with most reported designs using one or more rigid components that fail to meet the stretchability requirement for the entire device.

3D computer models of damage in multi-layered materials

Thu, 20 Apr 2017 07:40:02 -0400

Computer modelling of nano-indentation studies performed on ion-irradiated steels has generated 3D stress-field maps on an engineering scale that agree well with experimental results.


Deciphering material properties at the single-atom level

Thu, 20 Apr 2017 07:28:21 -0400

It was a big challenge and a small particle. Scientists determined the three-dimensional position of more than 23,000 atoms in a tiny iron-platinum particle with 22 picometer precision.


New microscopy method breaks color barrier of optical imaging

Thu, 20 Apr 2017 02:30:49 -0400

Researchers have made a significant step toward breaking the so-called 'color barrier' of light microscopy for biological systems, allowing for much more comprehensive, system-wide labeling and imaging of a greater number of biomolecules in living cells and tissues than is currently attainable.


Creation of artificial atoms in graphene

Thu, 20 Apr 2017 02:19:56 -0400

Scientists demonstrated that a vacancy in graphene can be charged in a controllable way such that electrons can be localized to mimic the electron orbitals of an artificial atom. Importantly, the trapping mechanism is reversible (turned on and off) and the energy levels can be tuned.


Smallest transistor ever

Thu, 20 Apr 2017 02:14:52 -0400

Researchers built a fully functional, nanometer-sized transistor by using atomically flat, two-dimensional molybdenum disulfide semiconductor and a single-walled carbon nanotube imbedded in zirconium dioxide.


Graphene 'copy machine' may produce cheap semiconductor wafers

Wed, 19 Apr 2017 12:48:25 -0400

Engineers use graphene as a 'copy machine' to produce cheaper semiconductor wafers.


Rechargeable 'spin battery' promising for spintronics and quantum computing

Wed, 19 Apr 2017 12:41:03 -0400

Researchers have shown how to create a rechargeable 'spin battery' made out of materials called topological insulators, a step toward building new spintronic devices and quantum computers.


Making batteries from waste glass bottles

Wed, 19 Apr 2017 10:20:12 -0400

Researchers are turning glass bottles into high performance lithium-ion batteries for electric vehicles and personal electronics.


Degradable electronic components created from corn starch nanocomposites

Wed, 19 Apr 2017 08:57:25 -0400

Researchers have modified a degradable bioplastic derived from corn starch or other natural sources for use in more eco-friendly electronic components.


A new method developed for measuring carbon nanotubes

Wed, 19 Apr 2017 08:50:59 -0400

With this method can be measured e.g. the number of single walled carbon nanotubes and their concentration in a carbon nanotube layer.


NANOLEAP open call

Wed, 19 Apr 2017 08:44:16 -0400

Get free access to the NANOLEAP Network of Pilot Lines for a 6 month research project on nanocomposites.


Nanoparticles remain unpredictable

Wed, 19 Apr 2017 08:31:54 -0400

The way that nanoparticles behave in the environment is extremely complex. There is currently a lack of systematic experimental data to help understand them comprehensively, as environmental scientists have shown in a large overview study.


Graphene and gold make a better brain probe

Wed, 19 Apr 2017 08:23:18 -0400

The electrode starts with a thin gold base. Attached to the base are tiny zinc oxide nanowires, which are coated in a thin layer of gold, and then a layer of conducting polymer.


Dark-state gas sensors

Wed, 19 Apr 2017 08:17:28 -0400

Researchers have proposed a new method of sensing gases based on a distinct optical fingerprint that arises in the presence of gas molecules. The research demonstrates a new principle which could lead to efficient gas sensors based on few-atom-thick transition metal dichalcogenides (TMDs).


New technique colors biomolecules in tissue

Wed, 19 Apr 2017 06:15:17 -0400

Multicolor electron microscopes are a new addition to medical research, and they could generate interesting results.


A self-healing rechargeable battery with ultralong cycling life

Wed, 19 Apr 2017 05:15:42 -0400

In new work, scientists describe a lithium?sulfur battery prototype using commercially viable micron-sized sulfur as cathode materials but with unprecedented cycling life that has never been achieved before. This success in achieving exceptionally long battery life is ascribed to a concept of self-healing. By mimicking a biological self-healing process, fibrinolysis, the team introduced an extrinsic healing agent, polysulfide, to enable the stable operation of sulfur microparticle (SMiP) cathodes.

Membranes that remove viruses from drinking water

Wed, 19 Apr 2017 04:10:51 -0400

Scientists have developed novel ultrafiltration membranes that significantly improve the virus-removal process from treated municipal wastewater used for drinking in water-scarce cities.


Fidelity in a marriage between electronic and optical effects

Wed, 19 Apr 2017 03:55:59 -0400

Simultaneously simulating electrical and optical input achieves unprecedented performance in electro-optical interfaces.


Researchers describe ultrasensitive detection of protein linked to multiple autoimmune diseases

Tue, 18 Apr 2017 11:07:27 -0400

Scientists have developed a new method that will allow doctors to detect minute amounts of a protein called interferon- in patient samples.