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Nanowerk Nanotechnology News

Nanotechnology news headlines from Nanowerk

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Simulate 'sun and rain' detail how nanoparticles can escape from plastic coatings into the environment

Fri, 30 Sep 2016 12:47:28 -0400

Researchers describe how they subjected a commercial nanoparticle-infused coating to methods for accelerating the effects of weathering from ultraviolet radiation and simulated washings of rainwater. Their results indicate that humidity and exposure time are contributing factors for nanoparticle release, findings that may be useful in designing future studies to determine potential impacts.


Motion-directed robots on a micro scale

Fri, 30 Sep 2016 07:43:35 -0400

Microswimmers capped with carbon on one side can be propelled and steered by light.


Gentle sensors for diagnosing brain disorders

Fri, 30 Sep 2016 07:37:24 -0400

New sensor design paves the way for safer and more effective brain monitoring.


Proof that materials behave differently at the nanoscale

Fri, 30 Sep 2016 07:33:23 -0400

Scientists have long suspected that the way materials behave on the nanoscale is different from how they behave on any other scale. A new paper provides concrete proof that this is the case.


Fluorine offers solar power boost

Fri, 30 Sep 2016 03:00:44 -0400

Tweaking the chemical composition of polymer solar cells improves efficiency and voltage.


Atom art: Beauty at the atomic scale

Thu, 29 Sep 2016 16:09:32 -0400

Nature makes some beautiful patterns with atoms.


Engineers create new devices that emulate human biological synapses

Thu, 29 Sep 2016 16:02:35 -0400

A team of engineers is developing a new type of nanodevice for computer microprocessors that can mimic the functioning of a biological synapse - the place where a signal passes from one nerve cell to another in the body.

Nanosensors could help determine tumors' ability to remodel tissue

Thu, 29 Sep 2016 15:55:03 -0400

Measuring enzyme levels could help doctors select appropriate treatments.


Mechanical behavior of tiny structures is affected by atomic defects

Thu, 29 Sep 2016 04:34:00 -0400

Scientists have measured the mechanics of tiny crystalline ceramics.


Nanotechnology for energy materials: Electrodes like leaf veins

Thu, 29 Sep 2016 04:32:47 -0400

Researchers have demonstrated that networks of metallic mesh possessing fractal-like nano-features surpass other metallic networks in utility.


Correlated magnets made out of single atoms

Thu, 29 Sep 2016 04:31:22 -0400

Scientists observe antiferromagnetic correlations in one-dimensional fermionic quantum many-body systems.


It's delightful, it's dynamic, it's dewetting

Wed, 28 Sep 2016 19:38:26 -0400

How would you like a kitchen surface that cleans itself? Technological advances such as this could be one step closer after a breakthrough by researchers.


Travelling through the body with graphene

Wed, 28 Sep 2016 09:57:52 -0400

For the first time researchers succeeded to place a layer of graphene on top of a stable fatty lipid monolayer. Surrounded by a protective shell of lipids graphene could enter the body and function as a versatile sensor.

Scientists visualise quantum behaviour of hot electrons for first time

Wed, 28 Sep 2016 06:47:26 -0400

Scientists have, for the first time, identified a method of visualising the quantum behaviour of electrons on a surface. The findings present a promising step forward towards being able to manipulate and control the behaviour of high energy, or 'hot', electrons.


Researchers suggest nanoscale electronic motion sensor as DNA sequencer

Tue, 27 Sep 2016 22:27:47 -0400

Researchers have proposed a design for the first DNA sequencer based on an electronic nanosensor that can detect tiny motions as small as a single atom.


X-ray laser glimpses how electrons dance with atomic nuclei in materials (w/video)

Tue, 27 Sep 2016 10:33:47 -0400

Studies could help design and control materials with intriguing properties, including novel electronics, solar cells and superconductors.


The world's smallest artificial virus

Tue, 27 Sep 2016 10:16:11 -0400

Scientists have engineered an artificial virus able to encapsulate and safely transfer small and large genes into human cells.


Wearable microscope can measure fluorescent dyes through skin

Tue, 27 Sep 2016 10:02:55 -0400

Monitoring disease biomarkers could become easier and more cost-effective.


First quantum photonic circuit with an electrically driven light source

Tue, 27 Sep 2016 05:21:58 -0400

For the first time, scientists have succeeded in placing a complete quantum optical structure on a chip.


'Missing link' found in the development of bioelectronic medicines

Tue, 27 Sep 2016 05:15:41 -0400

New research has demonstrated that a nanoscale device, called a memristor, could be the 'missing link' in the development of implants that use electrical signals from the brain to help treat medical conditions.


Nanotechnology could give us safer, greener diapers and sanitary products

Tue, 27 Sep 2016 05:10:33 -0400

Nanofibers are more absorbent and better for the environment, say researchers.

A nanobiotechnology tool for site-specific delivery in the gastrointestinal tract (w/video)

Tue, 27 Sep 2016 04:43:27 -0400

Researchers have developed an enteric micromotor consisting of a magnesium-based motor body with an enteric polymer coating. These motors, aimed controlling and enhancing site-specific delivery in the gastrointestinal tract, consist of water-powered magnesium-based tubular micromotors coated with an enteric polymer layer. The microscale robot can deliver payload to particular location via dissolution of their enteric polymeric coating to activate their propulsion at the target site towards localized tissue penetration and retention.

Electrically accessing complex magnetism in rare earth atoms

Tue, 27 Sep 2016 02:40:57 -0400

A new way to electrically access the magnetic properties of rare earth atoms, which are of crucial importance in many modern technologies, has been revealed by a team of researchers.


Fundamental researchers offer new ways to sort molecules for clean energy and more

Tue, 27 Sep 2016 02:32:35 -0400

Chemical separation accounts for 10 to 15 percent of the nation's energy consumption. That energy use has environmental costs, including tons of carbon dioxide released each year. Researchers are tackling the energy demands of separation by focusing on the underlying science. They are answering questions about how and why the targeted materials behave.


Stacked perovskite/CIGS solar module achieves unprecedented efficiency at 17.8 percent

Tue, 27 Sep 2016 02:20:17 -0400

Scientists today announced that they have fabricated a thin-film solar module stack made up of perovskite and Copper Indium Gallium Selenide (CIGS) with a conversion efficiency of 17.8 percent. For the first time, this tandem module surpasses the highest efficiencies of separate perovskite and CIGS modules.


German authorities update their joint research strategy 'Nanotechnology - health and environmental risks of nanomaterials'

Tue, 27 Sep 2016 00:26:46 -0400

The joint research strategy is part of the action plan Nanotechnology 2020 of the Federal Government passed by the Federal Cabinet on 14 September 2016. At the heart of the joint research strategy are testing methods and concepts for the characterisation and assessment of health and environmental risks which must be adapted and tested for new materials.


Buckybowl-to-buckybowl inversion: Key to understanding mechano-electronic switches

Tue, 27 Sep 2016 00:18:51 -0400

Scientists have identified the adlayer structure of the sumanene buckybowl on Au(111) and revealed its unique bowl inversion behavior.


Watching molecular machines at work

Mon, 26 Sep 2016 23:38:39 -0400

A new technology makes it possible to test how complex molecules function by manipulating them systematically. Add to this a new electron microscopy technique that brings resolution down to the atomic level - and indeed scientists are now able to directly look at these machines.


Shape-programmable miniscule robots

Mon, 26 Sep 2016 23:28:56 -0400

Soft materials that can use magnetic fields to generate desired time-varying shapes could provide an engine for microswimmers.


Mass producing graphene using microwaves

Mon, 26 Sep 2016 23:24:12 -0400

Scientists have discovered a simple new method for producing large quantities of the promising nanomaterial graphene.


Single photon light emitting diodes for on-chip integration

Mon, 26 Sep 2016 23:17:21 -0400

Researchers have used layered materials to create an all-electrical quantum light emitting diodes (LED) with single-photon emission. These LEDs have potential as on-chip photon sources in quantum information applications.


Iron nanoparticles make immune cells attack cancer

Mon, 26 Sep 2016 23:09:05 -0400

Researchers accidentally discovered that iron nanoparticles invented for anemia treatment have another use: triggering the immune system's ability to destroy tumor cells.


Edible nanocoating increases life of foods

Mon, 26 Sep 2016 21:48:55 -0400

In order to extend the life of fruits and vegetables and preserve them for longer refrigeration, researchers developed an edible coating with added functional ingredients applied to freshly cut foods.


Bending semiconductors generates electricity

Mon, 26 Sep 2016 20:15:14 -0400

The phenomenon, called flexoelectricity, arises from the redistribution of atoms and electrons in a material when it is bent. This redistribution of charges can be used to generate an electrical current. It was already known that insulating materials can be flexoelectric.

Scientists put a new twist on artificial muscles

Mon, 26 Sep 2016 19:58:59 -0400

Scientists describe the path to developing a new class of artificial muscles made from highly twisted fibers of various materials, ranging from exotic carbon nanotubes to ordinary nylon thread and polymer fishing line.


Ultrtasmall nanoparticles show ability to induce cell death in tumors

Mon, 26 Sep 2016 10:29:41 -0400

Ultrasmall nanoparticles have can kill cancer cells without attaching a cytotoxic drug.


Crystalline fault lines provide pathway for solar cell current (w/video)

Mon, 26 Sep 2016 10:22:36 -0400

New tomographic AFM imaging technique reveals that microstructural defects, generally thought to be detrimental, actually improve conductivity in cadmium telluride solar cells.


3D nanoprinting improves performance of atomic force microscopes

Mon, 26 Sep 2016 07:01:07 -0400

Tiny sensors made through nanoscale 3D printing may be the basis for the next generation of atomic force microscopes. These nanosensors can enhance the microscopes' sensitivity and detection speed by miniaturizing their detection component up to 100 times.


Scientists observe a surprising quantum effect when short light pulses interact with matter

Mon, 26 Sep 2016 04:33:02 -0400

Researchers have demonstrated how a train of attosecond pulses of polychromatic light could be used to excite a two-level system, which is a basic model system in quantum mechanics.


Controllable light-emitting materials to advance light sensing and nanomedicine

Mon, 26 Sep 2016 04:26:27 -0400

Luminous bismuth: controllable light-emitting materials having the potential to advance high-intensity, light sensing and nanomedicine.