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Nanowerk Nanotechnology News



Nanotechnology news headlines from Nanowerk



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Scientists propose new arguments for checking the properties of topological insulators

Fri, 20 Apr 2018 09:40:39 -0400

On the shape of the 'petal' for the dissipation curve.

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Using nanotechnology to improve efficiency in petroleum extraction

Fri, 20 Apr 2018 09:34:43 -0400

Oil companies use nanotechnology to extract resources with the least possible disruption of the environment.

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Magnetic nano-imaging on a table top

Fri, 20 Apr 2018 08:22:09 -0400

Researchers capture nanoscale images of magnetic domains with laser as ultrashort flash.

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Integrating optical components into existing chip designs

Fri, 20 Apr 2018 06:51:57 -0400

Technique would allow addition of optical communication components to existing chips with little modification of their designs.

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How to bend and stretch a diamond

Fri, 20 Apr 2018 06:42:49 -0400

The brittle material can turn flexible when made into ultrafine nanoneedles, researchers find.

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3D Nanoprinting facilitates communication with light

Fri, 20 Apr 2018 06:32:52 -0400

Researchers use a high-resolution 3D printing process to produce tiny beam-shaping elements directly on optical microchips or fibers and, hence, enable low-loss coupling.

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Material defects hinder the dynamics of magnetic skyrmions

Fri, 20 Apr 2018 03:08:11 -0400

A model of the interactions between magnetic vortices and material impurities could aid the development of low-power magnetic memories.

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Electrical pulses shift the boundaries between magnetic patterns

Fri, 20 Apr 2018 03:04:17 -0400

Electricity can be used to control magnetic patterns in an alloy, opening up the possibility of using them in high-performance devices.

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An alternative to antibiotics - weakening superbugs' grip

Fri, 20 Apr 2018 02:50:37 -0400

The growing threat of antibiotic-resistant bacterial strains may pose grave risks for society: A post-antibiotic era means, in effect, an end to modern medicine as we know it. New research findings could point the way to new treatments for now-invincible bacterial foes, not by developing a new antibiotic that would kill these bacteria, but by making them weaker so that they get more easily attacked by our immune system. Understanding the physical mechanisms that underlie this persistent stickiness at the molecular level is instrumental to combat these invaders.




Remote-control shoots laser at gold to switch on cancer-killing immune cells

Fri, 20 Apr 2018 02:35:04 -0400

A remote command could one day send immune cells on a rampage against a malignant tumor. The ability to mobilize, from outside the body, targeted cancer immunotherapy inside the body has taken a step closer to becoming reality.

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Visualization of molecular soccer balls

Fri, 20 Apr 2018 02:27:10 -0400

Researchers image single doped fullerene molecules using scanning tunneling microscopy.

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New record on squeezing light to one atom: Atomic Lego guides light below one nanometer

Thu, 19 Apr 2018 13:15:06 -0400

Scientists have been able to confine light down to a space one atom thick in dimension, the smallest confinement ever possible.

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A novel way of creating gold nanoparticles in water

Thu, 19 Apr 2018 13:10:16 -0400

An experiment that, by design, was not supposed to turn up anything of note instead produced a 'bewildering' surprise, according to the scientists who made the discovery: a new way of creating gold nanoparticles and nanowires using water droplets.

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Spider silk key to new bone-fixing composite

Thu, 19 Apr 2018 10:57:23 -0400

Researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

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Diamond-like carbon is formed differently to what was believed

Thu, 19 Apr 2018 10:51:58 -0400

Researchers have made a significant breakthrough in computational science by combining atomic-level modelling and machine learning. For the first time, the method has been used to realistically model how an amorphous material is formed at the atomic level.

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Electrochemical tuning of single layer materials relies on defects

Thu, 19 Apr 2018 10:44:05 -0400

Perfection is not everything, according to an international team of researchers whose 2-D materials study shows that defects can enhance a material's physical, electrochemical, magnetic, energy and catalytic properties.

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Far-red fluorescent silk can kill harmful bacteria as biomedical and environmental remedy

Thu, 19 Apr 2018 10:38:10 -0400

A silk hybrid material attacks bacteria when illuminated by a green light, thanks to a far-red fluorescent protein researchers transferred to its genetic makeup.

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Energy conversion: Optical 'overtones' for solar cells

Thu, 19 Apr 2018 10:32:10 -0400

Scientists have found a new effect regarding the optical excitation of charge carriers in a solar semiconductor. It could facilitate the utilization of infrared light, which is normally lost in solar devices.

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New cancer monitoring technology worth its weight in gold

Thu, 19 Apr 2018 10:08:27 -0400

A new blood test using gold nanoparticles could soon give oncologists an early and more accurate prognosis of how cancer treatment is progressing and help guide the on-going therapy of patients.

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Using tooth sensors to detect disease (w/video)

Thu, 19 Apr 2018 07:14:58 -0400

Collaborative research team developing biological sensors that would analyze saliva, send information electronically to doctors.

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Peptide induces chirality evolution in a single gold nanoparticle

Thu, 19 Apr 2018 06:57:39 -0400

For the first time, scientists have successfully created optically active, chiral gold nanoparticles using amino acids and peptides.

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One-dimensional quantum materials can deliver record-high current densities

Thu, 19 Apr 2018 06:51:20 -0400

The advent of graphene resulted in a massive, world-wide, effort directed at investigation of other two-dimensional (2D) layered materials. One-dimensional (1D) bundled materials have received considerably less attention. Similar to the 2D layered materials with covalently bonded layers separated by the van der Waals gaps, the 1D materials consist of covalently bonded one-dimensional wires with van der Waals gaps between the wires. Researchers now have discovered that quasi-1D nanoribbons reveal an exceptionally high current density at the peak of the stressing DC current. This level of the current density exceeds that in any conventional metals like copper by almost two orders of magnitude.




Graphene changes elastic properties depending on applied force

Thu, 19 Apr 2018 06:50:24 -0400

Researchers find a universal feature defining unique elastic and electrical graphene properties.

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Salt boosts creation of 2-D materials

Wed, 18 Apr 2018 12:55:34 -0400

Researchers show how salt lowers reaction temperatures to make novel materials.

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Writing and deleting magnets with lasers

Wed, 18 Apr 2018 10:23:41 -0400

Scientists have found a way to write and delete magnets in an alloy using a laser beam - a surprising effect. The reversibility of the process opens up new possibilities in the fields of material processing, optical technology, and data storage.

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Nanoscale transistor brings flexible TVs and high performance wearable smart tech one step closer

Wed, 18 Apr 2018 10:18:40 -0400

Flexible televisions, tablets and phones as well as 'truly wearable' smart tech are a step closer thanks to a new nanoscale transistor.

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Robot developed for automated assembly of designer nanomaterials

Wed, 18 Apr 2018 10:12:47 -0400

Scientists have developed an automated robot that greatly speeds up the collection of 2D crystals and their assembly to form van der Waals heterostructures.

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This 2-D nanosheet expands like a grow monster

Wed, 18 Apr 2018 10:06:10 -0400

Light causes crystal lattice to swell, opening new possibilities for artificial muscles, tiny electronics.

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A graphene roll-out

Wed, 18 Apr 2018 07:09:42 -0400

Scalable manufacturing process spools out strips of graphene for use in ultrathin membranes.

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Molecular scaffolding aids construction at the nanoscale

Wed, 18 Apr 2018 05:28:08 -0400

If you want to build a tall house, you need to use scaffolding. Researchers are applying this construction principle to their lab work, with one major difference: The materials they are working with are just a few billionths of a square meter in size.

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Shielding oxygen production to keep hydrogen coming

Wed, 18 Apr 2018 04:43:04 -0400

A porous cerium-based nanostructured coating boosts the durability of oxygen-forming catalysts while maintaining their inherent water-splitting activity.

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Nanotechnology takes steps towards artificial retinas

Wed, 18 Apr 2018 03:19:41 -0400

Sensory substitution with flexible electronics is one of the intriguing fields of research that takes place in nanotechnology labs around the world. In line with this focus on human senses, in the future artificial retinas integrated with the human body may not only repair damaged vision but also expand it to see a wider range wavelengths (e.g. ultraviolet light). Researchers now have demonstrated a new self-powered brain-linked vision electronic skin (e-skin) for mimicking the human retina. The general idea of our device design of brain-linked vision electronic skin is constructing an integrated flexible system including photodetector array, information analyzer, signal transmitter, and electricity power unit.




Making adaptive composite materials with light-responsive chemistry

Tue, 17 Apr 2018 16:16:17 -0400

Engineers have developed a technique that causes a composite material to become stiffer and stronger on-demand when exposed to ultraviolet light.

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Full of hot air and proud of it

Tue, 17 Apr 2018 12:27:22 -0400

Researchers are developing new ways to store, separate, and transport gases with metal organic frameworks.

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Scientists develop a unified theoretical model for triboelectric nanogenerators

Tue, 17 Apr 2018 11:59:50 -0400

A new paper details a new methodology that allows designers of smart-wearables to better understand and predict how their products would perform once manufactured and in use.

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Some superconductors can also carry currents of 'spin'

Tue, 17 Apr 2018 11:13:23 -0400

Researchers have shown that certain superconductors can also carry currents of 'spin'. The successful combination of superconductivity and spin could lead to a revolution in high-performance computing, by dramatically reducing energy consumption.

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Novel thermal phases of topological quantum matter in the lab

Tue, 17 Apr 2018 11:00:01 -0400

For the first time in the lab, a group of researchers have observed topological phases of matter of quantum states under the action of temperature or certain types of experimental imperfections.

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Polymer-graphene nanocarpets to electrify smart fabrics

Tue, 17 Apr 2018 10:54:44 -0400

Polymer carpets based on graphene could make any fabrics generate current.

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How does a molecule vibrate when you 'touch' it?

Tue, 17 Apr 2018 08:23:53 -0400

Physicists have studied the vibrations of a carbon monoxide molecule that is bonded on a copper surface under the influence of an external force field exerted by the tip of a scanning probe microscope.

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A novel, water-stable metal-organic framework for selective CO2 adsorption

Tue, 17 Apr 2018 06:46:54 -0400

Researchers have developed a novel porous material capable of selectively adsorbing CO2.

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