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Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News



Phys.org provides the latest news on nanotechnology, nanoscience, nanoelectronics, science and technology. Updated Daily.



 



Breakthrough discovery in diagnostic tools that can replace commonly used and fragile antibodies

Fri, 17 Nov 2017 09:22:29 EST

Experts from the Biotechnology Group at the University of Leicester led by Professor Sergey Piletsky in collaboration with the spin-off company MIP Diagnostics Ltd have announced the development of polymeric materials with molecular recognition capabilities which hold the potential to outperform natural antibodies in various diagnostic applications



Researchers compute unprecedented values for spin lifetime anisotropy in graphene

Fri, 17 Nov 2017 09:03:53 EST

Researchers of the ICN2 Theoretical and Computational Nanoscience Group, led by ICREA Prof. Stephan Roche, have published another paper on spin, this time reporting numerical simulations for spin relaxation in graphene/TMDC heterostructures. Published in Physical Review Letters, their calculations indicate a spin lifetime anisotropy that is orders of magnitude larger than anything observed in graphene until now. Here, lead author Aron Cummings explains the origin of this effect.



Scientists capture colliding organic nanoparticles on video for first time

Fri, 17 Nov 2017 00:10:02 EST

A Northwestern University research team is the first to capture on video organic nanoparticles colliding and fusing together. This unprecedented view of "chemistry in motion" will aid Northwestern nanoscientists developing new drug delivery methods as well as demonstrate to researchers around the globe how an emerging imaging technique opens a new window on a very tiny world.



Clothing fabric keeps you cool in the heat

Thu, 16 Nov 2017 09:30:04 EST

(Phys.org)—Researchers have designed a thermal regulation textile that has a 55% greater cooling effect than cotton, which translates to cooler skin temperatures when wearing clothes made of the new fabric. The material can be fabricated using 3D printing and could provide a simple, low-cost way to cool the human body and reduce the need for air conditioning on hot days.



Researchers study the surfaces of ceria nanoparticles

Thu, 16 Nov 2017 09:27:56 EST

At Karlsruhe Institute of Technology (KIT), scientists have studied ceria nanoparticles with the help of probe molecules and a complex ultrahigh vacuum-infrared measurement system and obtained new insights into their surface structure and chemical activity. Their work is reported in three articles published in the journal Angewandte Chemie.



Filtration of nanoparticles from traffic should become a key criterion of building ventilation

Thu, 16 Nov 2017 09:20:34 EST

Air filters that efficiently expel nanoparticles should be adopted in buildings. VTT Technical Research Centre of Finland and Tampere University of Technology (TUT) have developed a comparison technique which has detected marked differences between the nanoparticle-capturing performance of air filters.



A simple technique for mass producing ultrathin, high-quality molybdenum trioxide nanosheets

Thu, 16 Nov 2017 08:49:54 EST

Molybdenum trioxide (MoO3) has potential as an important two-dimensional (2-D) material, but its bulk manufacture has lagged behind that of others in its class. Now, researchers at A*STAR have developed a simple method for mass producing ultrathin, high-quality MoO3 nanosheets.



Kevlar-based artificial cartilage mimics the magic of the real thing

Wed, 15 Nov 2017 16:04:22 EST

The unparalleled liquid strength of cartilage, which is about 80 percent water, withstands some of the toughest forces on our bodies.



Researchers tune optical and photocatalytic properties of C-dots

Wed, 15 Nov 2017 11:20:57 EST

As Ludwig Maximilian University of Munich physicists demonstrate in a new study, the optical and photocatalytic properties of so-called carbon dots can be precisely tuned by controlling the positions of nitrogen atoms introduced into their structure.



X-rays reveal the biting truth about parrotfish teeth: Interwoven crystal structure is key to coral-crunching ability

Wed, 15 Nov 2017 09:38:26 EST

So, you thought the fictional people-eating great white shark in the film "Jaws" had a powerful bite.



Three-dimensional nanomagnets for the computer of tomorrow

Wed, 15 Nov 2017 09:30:07 EST

Since the late 1960's, electronic devices have stored and transmitted information (bits) in two-dimensional circuits. Now, researchers at the University of Cambridge have created a nanoscale magnetic circuit capable of moving information through three-dimensional space. This breakthrough could lead to an important increase in storage and processing capacities of electronic devices over those used today.



Stretching to perfection of 2-D semiconductors

Wed, 15 Nov 2017 07:59:24 EST

Compressing a semiconductor to bring atoms closer together or stretching it to move them farther apart can dramatically change how electricity flows and how light is emitted. Scientists found an innovative way to compress or stretch very thin (monolayer and bilayer) films of tungsten diselenide by placing the film on different surfaces at high temperatures. The underlying surface stretched or compressed upon cooling. Why? With few exceptions, all materials expand when heated and contract when cooled. However, this change happens at different rates. Because the films respond at a different rate than the surface, the films stretch or compress upon cooling. Excitingly, the electronic properties of the stretched films were dramatically different.



Butterfly wing inspires photovoltaics: Light absorption can be enhanced by up to 200 percent

Tue, 14 Nov 2017 11:50:46 EST

Sunlight reflected by solar cells is lost as unused energy. The wings of the butterfly Pachliopta aristolochiae are drilled by nanostructures (nanoholes) that help absorbing light over a wide spectrum far better than smooth surfaces. Researchers of Karlsruhe Institute of Technology (KIT) have now succeeded in transferring these nanostructures to solar cells and, thus, enhancing their light absorption rate by up to 200 percent. The scientists report their results in the journal Science Advances.



New mirror reflects light differently than conventional mirrors

Tue, 14 Nov 2017 09:30:06 EST

(Phys.org)—Researchers have designed a new type of mirror that reflects light in a completely different way than conventional mirrors do. The new mirror, called a chiral meta-mirror, has potential applications for information processing with light, next-generation 3-D movies, and other technologies that manipulate light in novel ways.



Graphene water filter turns whisky clear

Tue, 14 Nov 2017 07:56:41 EST

Previously graphene-oxide membranes were shown to be completely impermeable to all solvents except for water. However, a study published in Nature Materials, now shows that we can tailor the molecules that pass through these membranes by simply making them ultrathin.



Zipping DNA

Mon, 13 Nov 2017 11:00:11 EST

ETH researchers have developed a method that allows large amounts of genetic information to be compressed and then decompressed again in cells. This could aid in the development of new therapies.



Graphene tests set for zero-G flight

Mon, 13 Nov 2017 07:56:57 EST

After a long summer of hard work in the laboratories, researchers in the Graphene Flagship are ready for two experiments this week, testing graphene technologies for space-related applications in collaboration with the European Space Agency (ESA).



Semiconductors with an aligned interface

Mon, 13 Nov 2017 07:03:58 EST

The electronic characteristics of an interface between two wide bandgap semiconductors are determined by researchers at KAUST: an insight that will help improve the efficiency of light-emitting and high-power electronic devices.



Factors in the fabrication of heterojunctions of 2-D materials through CVD

Mon, 13 Nov 2017 05:41:04 EST

2-D materials have special lattice structures. Atoms in the same layer are usually bound by a covalent bond, while the force between layers is van der Waals coupling. They have super-clean surfaces without any dangling bonds. Thus, the design of heterojunctions is more flexible when 2-D materials are utilized to constitute heterojunctions. The heterojunctions formed by different 2-D materials have advantageous properties, including optimizing band alignment, bandgap, charge transfer and optical properties.



How the magnetoelastic effect can control the magnetic properties of nanoelements

Fri, 10 Nov 2017 08:33:08 EST

Rapidly modifying magnetic properties is key for low power magnetic devices. The EU-funded MULTIREV project has contributed to a study which exploits magnetoelastic coupling, for the design of strain-controlled nano-devices.



Theranostic nanoparticles for tracking and monitoring disease state

Thu, 09 Nov 2017 10:02:55 EST

Although the most basic definition of a "theranostic" nanoparticle is a nanoparticle that simply has a therapeutic moiety and imaging or diagnostic moiety on the same particle, the authors of a new SLAS Technology review article pay particular attention to and emphasize the platforms in which self-reporting and disease monitoring is possible in real-time through the synergistic nature of the components on the theranostic particles.



Nanoparticles can limit inflammation by distracting the immune system

Wed, 08 Nov 2017 16:06:19 EST

A surprise finding suggests that an injection of nanoparticles may be able to help fight the immune system when it goes haywire, researchers at the University of Michigan have shown. The nanoparticles divert immune cells that cause inflammation away from an injury site.



Nanoshells could deliver more chemo with fewer side effects

Wed, 08 Nov 2017 15:13:25 EST

Researchers investigating ways to deliver high doses of cancer-killing drugs inside tumors have shown they can use a laser and light-activated gold nanoparticles to remotely trigger the release of approved cancer drugs inside cancer cells in laboratory cultures.



Cool textiles to beat the heat

Wed, 08 Nov 2017 11:51:39 EST

Air-conditioned buildings bring welcome relief to people coming in from the heat. But creating that comfort comes with a cost to our wallets and the environment in the form of increased energy bills and greenhouse gas emissions. Now researchers report in ACS Nano the development of a new material for clothing that we could one day don as our own personal cooling unit, without any external energy needed to power it.  



Better, bolder printing with silicon nanostructures

Wed, 08 Nov 2017 09:14:02 EST

From textbooks to artwork to newspapers, printed items are a part of our everyday life. But the ink used in today's printers are limited in colors and resolution. Now in a new study in ACS' journal Nano Letters, scientists have found a way to expand the printable color spectrum with a novel nanostructure system.



Condensation-based method could create stable nanoscale emulsions

Wed, 08 Nov 2017 09:08:10 EST

The reluctance of oil and water to mix together and stay that way is so well-known that it has become a cliché for describing any two things that do not go together well. Now, a new finding from researchers at MIT might turn that expression on its head, providing a way to get the two substances to mix and remain stable for long periods—no shaking required. The process may find applications in pharmaceuticals, cosmetics, and processed foods, among other areas.



Graphene performs under pressure

Wed, 08 Nov 2017 07:41:44 EST

Scientists at The University of Manchester have fabricated highly miniaturised pressure sensors using graphene membranes which can detect minute changes in pressure with high sensitivity, over a wide range of operating pressures.



Researchers develop color filters that respond to the angle of incident light

Tue, 07 Nov 2017 13:19:45 EST

Imagine a miniature device that suffuses each room in your house with a different hue of the rainbow—purple for the living room, perhaps, blue for the bedroom, green for the kitchen. A team led by scientists at the National Institute of Standards and Technology (NIST) has, for the first time, developed nanoscale devices that divide incident white light into its component colors based on the direction of illumination, or directs these colors to a predetermined set of output angles.



The flat and the curious

Tue, 07 Nov 2017 07:31:32 EST

The remarkable properties of 2-D materials—made up of a single layer of atoms—have made them among the most intensely studied materials of our time. They have the potential to usher in a new generation of improved electronics, batteries and sensory devices, among other applications.



Age-old malaria treatment found to improve nanoparticle delivery to tumors

Mon, 06 Nov 2017 12:41:33 EST

A new study shows that a 70-year-old malaria drug can block immune cells in the liver so nanoparticles can arrive at their intended tumor site, overcoming a significant hurdle of targeted drug delivery, according to a team of researchers led by Houston Methodist.