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Nanowerk Nanotechnology News

Nanotechnology news headlines from Nanowerk

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An innovative magnetically activated thermal switch based on nanofluids

Fri, 09 Dec 2016 09:26:43 -0500

With the exponential rise of power dissipation in electric devices such as integrated circuits or micro/nano electro mechanical systems (MEMS/NEMS), new thermal management solutions are in high demand. Thermal switches, being devices capable of controlling the temperature flow between two surfaces, are one of the solutions capable of effectively tackling this problem. In new work, researchers demonstrate an innovative magnetically actuated thermal switch based on nanofluids capable of controlling both the magnitude and direction of the heat flux. This device takes advantage of the thermal conductivity increase in magnetic nanofluids when submitted to an applied magnetic field parallel to the temperature gradient.

PHENOMEN project to lay the foundations for a new age of information processing

Fri, 09 Dec 2016 04:14:32 -0500

PHENOMEN is a ground-breaking project that will combine advances in photonics, mechanics and electronics to develop the first optically-driven phonon sources and detectors, all at the nanoscale.


Pioneering nanotechnology captures energy from people (w/video)

Thu, 08 Dec 2016 15:04:33 -0500

On the path toward wearable devices powered by human motion.


Electron highway inside crystal

Thu, 08 Dec 2016 14:01:10 -0500

Physicists have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used.


A nano-roundabout for light

Thu, 08 Dec 2016 13:55:57 -0500

Just like in normal road traffic, crossings are indispensable in optical signal processing. In order to avoid collisions, a clear traffic rule is required. A new method has now been developed by researchers to provide such a rule for light signals.


Researchers use graphene to make state of the art sensors from silly putty

Thu, 08 Dec 2016 13:10:35 -0500

Researchers have used graphene to make the novelty children?s material silly putty (polysilicone) conduct electricity, creating extremely sensitive sensors. This research potentially offers exciting possibilities for applications in new, inexpensive devices and diagnostics in medicine and other sectors.


Chemical trickery corrals 'hyperactive' metal-oxide cluster

Thu, 08 Dec 2016 12:59:47 -0500

After decades of eluding researchers because of chemical instability, key metal-oxide clusters have been isolated in water, a significant advance for growing the clusters with the impeccable control over atoms that's required to manufacture small features in electronic circuits.


Researchers peer into atom-sized tunnels in hunt for better battery

Thu, 08 Dec 2016 12:53:56 -0500

Battery researchers seeking improved electrode materials have focused on 'tunneled' structures that make it easier for charge-carrying ions to move in and out of the electrode. Now a team has used a special electron microscope with atomic-level resolution to show that certain large ions can hold the tunnels open so that the charge-carrying ions can enter and exit the electrode easily and quickly.


New Multi-Axis Positioning Family: Vertical, Rotary, Linear Stages from PI

Thu, 08 Dec 2016 11:12:24 -0500

High-end industrial and research applications rely on precision motion stages and systems to execute mission-critical procedures and processes. PI has developed its new family of linear, rotary, and Z-axis stages to meet those demanding requirements.


Nanotechnology for environmentally sustainable electromobility

Thu, 08 Dec 2016 10:51:33 -0500

A closer look at the life-cycle impacts of lithium-ion batteries and proton exchange membrane fuel cells.


High performance graphene photodetectors set speed record

Thu, 08 Dec 2016 10:44:51 -0500

Graphene is an ideal material for optical communications systems. A new, waveguide-integrated photodetector sets a record high bandwidth for ultrafast, high data rate graphene devices.


Europeans to get more information on nanomaterials

Thu, 08 Dec 2016 10:39:12 -0500

Better access to relevant and understandable information about nanomaterials - that is the main goal of an agreement signed between ECHA and the Commission on the European Union Observatory for Nanomaterials.


A thermoelectric material in paintable liquid form

Thu, 08 Dec 2016 09:39:09 -0500

Researchers have demonstrated a new type of high-performance thermoelectric materials that possess liquid-like properties. These newly developed materials are both shape-engineerable and geometrically compatible in that they can be directly brush-painted on almost any surface.


Researchers create hidden images with commercial inkjet printers

Thu, 08 Dec 2016 09:30:26 -0500

Images printed with silver and carbon reveal their secrets only with the right type of illumination; for use in security-related applications.


Ground-breaking project to replicate brain's neural networks though 3D nanoprinting

Thu, 08 Dec 2016 08:02:41 -0500

Major 3.3m euro stem cell research project to develop 3D nanoprinting techniques that could replicate brain's neural networks.


Graphene calligraphy

Thu, 08 Dec 2016 06:48:52 -0500

Graphene used as a 'paper' on which to 'write' chemical patterns thousand times narrower than human hair. This research opens up miniaturisation of chemical and biological sensors.


Dipole orientation: New dimension in super-resolution microscopy

Thu, 08 Dec 2016 04:55:23 -0500

Researchers have proposed a new polarization-dipole azimuth-based super-resolution technique. It not only provides a new dimension for super-resolution, but also provides a timely solution to a recent hot debate in the field.


Scientists track chemical and structural evolution of catalytic nanoparticles in 3-D

Thu, 08 Dec 2016 04:44:48 -0500

Up-close, real-time, chemical-sensitive 3-D imaging offers clues for reducing cost/improving performance of catalysts for fuel-cell-powered vehicles and other applications.


Decoding cement's shape at the nanoscale promises greener concrete

Wed, 07 Dec 2016 16:44:40 -0500

Scientists develop 'programmable' cement particles to attain enhanced properties.


Machine learning enables predictive modeling of 2-D materials

Wed, 07 Dec 2016 16:37:49 -0500

Materials scientists have pioneered another important application for machine learning - helping to accelerate the discovery and development of new materials.


Stamping technique creates nanoscale circuits with electronic ink

Wed, 07 Dec 2016 13:45:07 -0500

New stamping technique creates functional features at nanoscale dimensions.


Novel label-free microscopy enables dynamic, high-resolution imaging of cell interactions

Wed, 07 Dec 2016 12:50:55 -0500

The Photonic Crystal Enhanced Microscope (PCEM) is capable of monitoring and quantitatively measuring cell adhesion, a critical process involved cell migration, cell differentiation, cell division, and cell death.


Uncovering the secrets of water and ice as materials

Wed, 07 Dec 2016 08:51:57 -0500

A group of researchers are pursuing a better understanding of water and ice as materials - focusing on the hydrogen ordering of the disordered ice VI phase to its ordered counterpart ice XV.


Enhanced fuel cell performance using one atom thick 2D material

Wed, 07 Dec 2016 05:51:04 -0500

Methanol fuel cells are widely considered as a potential source of future energy due to the usage of methanol as a liquid fuel; simplicity in operation; higher energy density of methanol fuel; high power density obtained etc. However their commercialization is greatly hindered by methanol crossover taking place in the membrane area of fuel cells, leading to short circuits and greatly affecting overall performance. By using two-dimensional (2D) materials - graphene and hexagonal boron nitride (hBn) - in methanol fuel cell systems, researchers now have overcome this bottleneck.

Magnetic purification of blood 'pulls out' the bacteria

Wed, 07 Dec 2016 04:19:33 -0500

Magnets instead of antibiotics could provide a possible new treatment method for blood infection. This involves the blood of patients being mixed with magnetic iron particles, which bind the bacteria to them after which they are removed from the blood using magnets.


3D solutions to energy savings in silicon power transistors

Wed, 07 Dec 2016 04:01:23 -0500

Researchers demonstrate operation energy-savings in a low price silicon power transistor structure by scaling down in all three dimensions.


Enhanced stability of perovskite solar cells through the development of new additives

Wed, 07 Dec 2016 03:54:15 -0500

Scientists have developed new additives for the hole-transporting layer of perovskite solar cells, which greatly improved cell stability.


World's first vertically stacked gate-all-around Si nanowire CMOS transistors

Wed, 07 Dec 2016 03:48:18 -0500

Key in the integration scheme is a dual-work-function metal gate enabling matched threshold voltages for the n- and p-type devices. These breakthrough results advance the development of GAA nanowire MOSFETs, which promise to succeed FinFETs in future technology nodes.


Record tunneling magnetoresistance for very small perpendicular magnetic tunnel junctions

Wed, 07 Dec 2016 03:42:47 -0500

This world's smallest device enables the establishment of a manufacturing process for high-density spin-transfer-torque magnetic random access memory (STT-MRAM) arrays that meet the requirements of the 10nm and beyond logic node for embedded non-volatile memory applications. It also paves the way for high density stand-alone applications.


Memristive devices can mimic brain's capability to change synaptic connectivity

Tue, 06 Dec 2016 16:29:32 -0500

Scientists have demonstrated that memristive devices are excellent candidates to emulate synaptic plasticity, the capability of synapses to enhance or diminish their connectivity between neurons.

Low-cost paper-based skin patch monitors dehydration by changing color from sweat

Tue, 06 Dec 2016 16:24:40 -0500

Researchers have developed a low-cost skin patch that changes color to indicate different levels of hydration, representing a potential new medical technology.


Blood-brain barrier on a chip sheds new light on 'silent killer'

Tue, 06 Dec 2016 16:20:10 -0500

An interdisciplinary team of researchers report that they have developed a microfluidic device that overcomes the limitations of previous models of this key system and have used it to study brain inflammation, dubbed the 'silent killer' because it doesn't cause pain but contributes to neurodegenerative conditions such as Alzheimer's and Parkinson's diseases.


New material could lead to erasable and rewriteable optical chips

Tue, 06 Dec 2016 16:10:47 -0500

Engineers have developed a nanomaterial that could lead to optical chips and circuits. The researchers believe they are the first to rewrite a waveguide, which is a crucial photonic component and a building block for integrated circuits, using an all-optical technique.


Improving the resolution of flow lithography produced nanostructures

Tue, 06 Dec 2016 10:54:21 -0500

The technique uses a Digital Light Processing (DLP) projector, similar to those used in projection TVs, to generate lithographic patterns. By overlapping low-resolution frames of the DLP projector a much higher-resolution frame can be produced.

Anomalously large charge transfer in an atomic layer cake of transition metal oxides

Tue, 06 Dec 2016 10:11:58 -0500

This work shows a path toward the development of electronics devices that are substantially more versatile and multifunctional than traditional semiconductors using various materials that could easily transition between a variety of electronic, magnetic, and spin states to achieve a wide range of functionalities in a single device.


Biodegradable polymers made by chemical vapor deposition

Tue, 06 Dec 2016 09:58:11 -0500

Biomolecules or drugs can be attached by means of special side groups. This introduces new possibilities for applications like the coating of biodegradable implants.


New method allows to study individual defects in transistors

Tue, 06 Dec 2016 08:36:52 -0500

All computer chips, which are each made up of huge numbers of transistors, contain millions of minor flaws. Researchers now have developed a method for studying individual defects in transistors.


Contact lens technology leads to supercapacity breakthrough

Tue, 06 Dec 2016 06:26:52 -0500

Major scientific breakthrough research has discovered new materials offering an alternative to battery power and proven to be between 1,000-10,000 times more powerful than the existing battery alternative - a supercapacitor.


Ein neues Nanotechnologie Projekt in Europa

Tue, 06 Dec 2016 06:06:55 -0500

Die EU Kommission foerdert seit kurzem das Marie-Curie Trainings-Netzwerk ELENA (Low energy ELEctron driven chemistry for the advantage of emerging NAnofabrication methods), an dem 13 Unis, 4 Forschungsinstitute und 5 Unternehmen aus 13 EU Laendern beteiligt sind.


Opening the way to mobile smell sensors with nanomechanical systems

Tue, 06 Dec 2016 05:59:56 -0500

An alliance between six organizations is setting a de facto standard for smell sensors employing a small, sensitive and versatile sensor element called the Membrane-type Surface stress Sensor (MSS).