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Nanowerk Nanotechnology News



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Graphene ribbons result in 100-fold increase in gold catalyst's performance

Tue, 27 Jun 2017 14:09:25 -0400

Bottom-up synthesis of tunable carbon nanoribbons provides a new route to enhance industrial, automotive reactions.

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Nan-Oh-Canada

Tue, 27 Jun 2017 11:52:45 -0400

Measuring 32 atoms, Canadian scientists have created a maple leaf 10,000 times smaller than the diameter of a human hair.

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New photoacoustic technique detects gases at parts-per-quadrillion level

Tue, 27 Jun 2017 11:19:59 -0400

A team of researchers has found a way to detect trace gases down to concentrations at the parts-per-quadrillion level using a new variation on the photoacoustic effect, a technique that measures the sound generated when light interacts with molecules.

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Coating individual bacterial cells with a conducting polymer

Tue, 27 Jun 2017 11:13:11 -0400

Coating of individual bacterial cells with an electron-conducting polymer provides for a high-performance anode for microbial fuel-cell applications.

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Physicists make quantum leap in understanding life's nanoscale machinery

Tue, 27 Jun 2017 10:49:51 -0400

A diagnostic technique that can detect tiny molecules signalling the presence of cancer could be on the horizon.

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Cotton candy capillaries lead to circuit boards that dissolve when cooled

Tue, 27 Jun 2017 10:44:01 -0400

The silver nanowires are held together in the polymer so that they touch, and as long as the polymer doesn't dissolve, the nanowires will form a path to conduct electricity similar to the traces on a circuit board.

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Bacteria-coated nanofiber electrodes digest pollutants

Tue, 27 Jun 2017 10:37:30 -0400

Materials scientists and bioelectrochemical engineers may have created an innovative, cost-competitive electrode material for cleaning pollutants in wastewater.

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Graphene and terahertz waves could lead the way to future communication

Tue, 27 Jun 2017 10:33:07 -0400

By utilizing terahertz waves in electronics, future data traffic can get a big boost forward. So far, the terahertz (THz) frequency has not been optimally applied to data transmission, but by using graphene, researchers have come one step closer to a possible paradigm shift for the electronic industry.

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3-D-printed jars in ball-milling experiments

Tue, 27 Jun 2017 10:28:01 -0400

Recently, in situ observations of mechanochemical reactions have been achieved by X-ray diffraction and Raman spectroscopy. Solid-state reactions can be directly tracked, revealing phase transitions and other material transformations during synthesis in a ball mill jar.

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3D-printing catalytic applications

Tue, 27 Jun 2017 07:57:32 -0400

Three-dimensional (3D) printing, also known as additive manufacturing, is a fabrication method that creates structures from digital models. Unlike conventional fabrication methods, 3D printing processes are bottom-up fabrication methods which are based on the incremental addition of layers of materials. Recently, 3D-printing has also been shown to be advantageous to catalytic applications since a printing approach can achieve better control of the fine structure of the target material. It is expected that 3D printing fabrication will provide new solutions for preparing catalysts with new structures in a more economical and energy-efficient way.




New 'gold standard' for flexible electronics

Tue, 27 Jun 2017 03:56:24 -0400

Simple, economical process makes large-diameter, high-performance, thin, transparent, and conductive foils for bendable LEDs and more.

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Atomic magnet curve balls

Tue, 27 Jun 2017 03:50:40 -0400

A twisted array of atomic magnets were driven to move in a curved path, a needed level of control for use in future memory devices.

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Targeting neurons with nanoparticles

Tue, 27 Jun 2017 03:42:25 -0400

A research team has elucidated the mechanisms through which nanoparticles modulate bioelectric activity from single neuron to neuronal networks.

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Use of machine learning to design optimal nanostructures to control heat current in materials

Tue, 27 Jun 2017 02:13:54 -0400

Scientists have developed a calculation method for identifying optimal nanostructures to either maximize or minimize the thermal resistance of target materials. This method reduced the amount of calculation by more than 90% compared to conventional methods.

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Nanoparticles as food additives: improving risk assessment

Tue, 27 Jun 2017 02:07:21 -0400

The anticaking agent E551 silicon dioxide, or silica, has been used widely in the food industry over the past 50 years, and was long thought to be quite safe. Now, however, researchers have discovered that these nanoparticles can affect the immune system of the digestive tract.

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Symposium explores possibilities of origami nanomachines

Mon, 26 Jun 2017 16:06:42 -0400

Origami usually brings to mind folded paper cranes, but scientists see in origami the promise of nanoscale machinery.

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Scientists create a cellular guillotine for studying single-cell wound repair

Mon, 26 Jun 2017 15:53:52 -0400

In an effort to understand how single cells heal, mechanical engineers have developed a microscopic guillotine that efficiently cuts cells in two. Learning more about single-cell wound repair could lead to self-healing materials and machines.

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New class of 'soft' semiconductors could transform HD displays

Mon, 26 Jun 2017 15:45:24 -0400

Researchers find tunable halide perovskites could usher in new generation of optoelectronic devices.

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Thwarting metastasis by breaking cancer's legs with gold nanorods

Mon, 26 Jun 2017 15:35:29 -0400

Migration halted in human carcinoma cultures in vitro via local, targeted gold nanorod photothermal therapy with NIR laser.

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Ultra-compact phase modulators based on graphene plasmons

Mon, 26 Jun 2017 15:23:11 -0400

Researchers achieve light phase modulation with a footprint 30 times smaller than the light wavelength.

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Novel platform uses nanoparticles to detect peanut allergies

Mon, 26 Jun 2017 15:18:11 -0400

Researchers have developed a novel platform to more accurately detect and identify the presence and severity of peanut allergies, without directly exposing patients to the allergen.

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2D material's traits could send electronics research spinning in new directions

Mon, 26 Jun 2017 10:18:45 -0400

Researchers have fabricated an atomically thin material and measured its exotic and durable properties that make it a promising candidate for a budding branch of electronics known as spintronics.

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Using 'sticky' nanoparticles, researchers develop strategy to boost body's cancer defenses

Mon, 26 Jun 2017 10:09:33 -0400

Scientists report on strides made in the development of a strategy to improve the immune system's detection of cancer proteins by using 'sticky' nanoparticles that are called 'antigen-capturing nanoparticles'.

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Moisture-responsive graphene 'robots' crawl with no external power source

Mon, 26 Jun 2017 09:59:51 -0400

Created using only a camera flash and graphene oxide, smart materials move in response to changes in humidity.

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Neuron-integrated nanotubes to repair nerve fibers

Mon, 26 Jun 2017 09:54:11 -0400

A new study sheds light on the properties of nanostructures capable of ensuring an effective integration with nerve cells, an essential quality for developing innovative systems targeting the repair of neuronal damages.

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Researchers present a new method of 3D-plasmon tomography

Mon, 26 Jun 2017 07:29:41 -0400

In new work, researchers could show for the first time how the third dimension can be reconstructed completely in the framework of a tomographic imaging process by rotating the sample and processing a series of tilted two-dimensional projections.

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How to train your drugs: from nanotherapeutics to nanobots (w/video)

Mon, 26 Jun 2017 04:53:32 -0400

Nanotechnology is creating new opportunities for fighting disease - from delivering drugs in smart packaging to nanobots powered by the world?s tiniest engines.

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From 1D polymers to 2D polymers

Mon, 26 Jun 2017 03:04:56 -0400

Scientists report a facile, highly efficient, and versatile strategy for preparation of free-standing single-monomer-thick 2D polymers in water without any aid.

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Novel nanocellulose hydrogel suitable for 3D printing

Mon, 26 Jun 2017 02:45:42 -0400

Researchers have developed a nanocellulose-alginate hydrogel suitable for 3D printing. The composition of the hydrogel was optimized based on material characterization methods and 3D printing experiments.

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Topological insulator research accelerates quest for quicker, longer-lasting electronics

Fri, 23 Jun 2017 14:34:27 -0400

Researchers report they have created a TI film just 25 atoms thick that adheres to an insulating magnetic film, creating a heterostructure. This heterostructure makes TI surfaces magnetic at room temperatures and higher, to above 400 Kelvin or more than 720 degrees Fahrenheit.

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New form of carbon discovered that is harder than diamond but flexible as rubber

Fri, 23 Jun 2017 11:27:23 -0400

Scientists have found a way to make carbon both very hard and very stretchy by heating it under high pressure. This 'compressed glassy carbon' is also lightweight and could potentially be made in very large quantities.

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Nanostructured microfluidics platform detects infectious pathogens

Fri, 23 Jun 2017 06:46:42 -0400

Researchers report a new zinc oxide nanorods integrated microchip that captures avian influenza virus on immunologically functionalized ZnO nanorod surface and detect viruses by multiplexed sandwich immunoassay.

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Bacterial organizational complexities revealed

Fri, 23 Jun 2017 03:42:08 -0400

For the first time, scientists have visualized the fine details of bacterial microcompartment shells - the organisms' submicroscopic nanoreactors, which are comprised completely of protein.

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Synthesis of 2D metal oxides and hydroxides - high-yield, efficient, fast and low-cost

Fri, 23 Jun 2017 03:32:40 -0400

As two-dimensional (2D) materials gain more and more importance - thanks to their exotic electronic properties and abundant active sites - the development of high-yield, efficient, fast and low-cost synthesis methods to advance these materials from the laboratory to industry has become an urgent issue. Now, researchers have developed a general and rapid molten salts method that can synthesize various ion-intercalated 2D metal oxides and hydroxides, such as cation-intercalated manganese oxides, cation-intercalated tungsten oxides, and anion-intercalated metal hydroxides.




Switchable DNA mini-machines store information

Thu, 22 Jun 2017 14:05:31 -0400

They look like security gates, but change shape in a cascade.

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New design improves performance of flexible wearable electronics

Thu, 22 Jun 2017 13:56:31 -0400

In a proof-of-concept study, engineers have designed a flexible thermoelectric energy harvester that has the potential to rival the effectiveness of existing power wearable electronic devices using body heat as the only source of energy.

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Quantum thermometer or optical refrigerator?

Thu, 22 Jun 2017 13:51:42 -0400

Versatile optomechanical beams have potential applications in biology, chemistry, electronics.

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Exosomes - biological nanoparticles offer significant potential in detecting and treating disease

Thu, 22 Jun 2017 13:44:22 -0400

Exosomes - biological nanoparticles which transfer information between cells - offer significant potential in detecting and treating disease, the most comprehensive overview so far of research in the field has concluded.

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PI's Precision Automation Solutions Featured at 2017 LASER World of PHOTONICS

Thu, 22 Jun 2017 13:34:47 -0400

Custom precision automation solutions for Si Photonics, Laser Machining and Touch Display Testing - provided by PI?'s engineered systems group.

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Holey pattern boosts coherence of nanomechanical membrane vibrations

Thu, 22 Jun 2017 10:02:56 -0400

Researchers have introduced a new type of nanomechanical resonator, in which a pattern of holes localizes vibrations to a small region in a 30 nm thick membrane. The pattern dramatically suppresses coupling to random fluctuations in the environment, boosting the vibrations' coherence.

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