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Preview: PHYSorg.com: Nanotechnology News

Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News



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



 



Next-gen computing: Memristor chips that see patterns over pixels

Mon, 22 May 2017 11:00:13 EDT

Inspired by how mammals see, a new "memristor" computer circuit prototype at the University of Michigan has the potential to process complex data, such as images and video orders of magnitude, faster and with much less power than today's most advanced systems.



Speeding up quality control for biologics

Mon, 22 May 2017 11:00:10 EDT

Drugs manufactured by living cells, also called biologics, are one of the fastest-growing segments of the pharmaceutical industry. These drugs, often antibodies or other proteins, are being used to treat cancer, arthritis, and many other diseases.



Researchers show laser-induced graphene kills bacteria, resists biofouling

Mon, 22 May 2017 10:46:30 EDT

Scientists at Rice University and Ben-Gurion University of the Negev (BGU) have discovered that laser-induced graphene (LIG) is a highly effective anti-fouling material and, when electrified, bacteria zapper.



New graphene sensor to improve hepatitis diagnosis

Mon, 22 May 2017 08:30:02 EDT

A new UK-China collaborative project is developing a sensor to provide an easy, low-cost method of diagnosing hepatitis on the spot using graphene – an advanced 2-D material known for its high electrical conductivity. The sensor will be the first to simultaneously test for three types of hepatitis – A, B and C – out of the five types that exist. The multi-partner project, supported by the UK's Newton Fund and led by Biovici, will bring together the National Physical Laboratory (NPL), the University of Chongqing, Swansea University, and industry partner CTN, to develop this new diagnostic technology.



'Sticky' particles promise more precise drug delivery for brain cancer

Mon, 22 May 2017 07:06:11 EDT

A Yale research team has found that by tinkering with the surface properties of drug-loaded nanoparticles, they can potentially direct these particles to specific cells in the brain.



Let there be light: Controlled creation of quantum emitter arrays

Mon, 22 May 2017 05:00:03 EDT

Transition metal dichalcogenides (TMDs) are layered semiconductors that can be exfoliated into layers only a few atoms thick. Recent research has shown that some TMDs can contain quantum light sources that can emit single photons of light. Until now, the occurrence of these quantum light emitters has been random. Now, researchers in the Graphene Flagship working at the University of Cambridge, UK, have created large scale arrays of these quantum emitters in different TMD materials. The work, also involving researchers from Harvard University, US, is published in Nature Communications. This new approach leads to large quantities of on-demand, single photon emitters, paving the way for integrating ultra-thin, single photons in electronic devices.



Graphene-based sensor could improve evaluation, diagnosis and treatment of asthma

Mon, 22 May 2017 02:30:33 EDT

Rutgers University-New Brunswick scientists have created a graphene-based sensor that could lead to earlier detection of looming asthma attacks and improve the management of asthma and other respiratory diseases, preventing hospitalizations and deaths.



New nano-polymer could prevent heart failure

Mon, 22 May 2017 02:26:55 EDT

Researchers at Ben-Gurion University (BGU) and the Sheba Medical Center have developed a new therapy to treat atherosclerosis and prevent heart failure with a new biomedical polymer that reduces arterial plaque and inflammation in the cardiovascular system.



IBM scientists demonstrate ballistic nanowire connections, a potential future key component for quantum computing

Fri, 19 May 2017 07:08:48 EDT

IBM scientists have achieved an important milestone toward creating sophisticated quantum devices that could become a key component of quantum computers. As detailed in the peer-review journal Nano Letters, the scientists have shot an electron through a III-V semiconductor nanowire integrated on silicon for the first time.



Scientists construct a stable one-dimensional metallic material

Fri, 19 May 2017 06:19:55 EDT

Researchers have developed the world's thinnest metallic nanowire, which could be used to miniaturise many of the electronic components we use every day.



Graphene-nanotube hybrid boosts lithium metal batteries

Thu, 18 May 2017 15:22:58 EDT

Rice University scientists have created a rechargeable lithium metal battery with three times the capacity of commercial lithium-ion batteries by resolving something that has long stumped researchers: the dendrite problem.



Molecular Lego for nanoelectronics

Thu, 18 May 2017 10:24:57 EDT

The ability to assemble electronic building blocks consisting of individual molecules is an important objective in nanotechnology. An interdisciplinary research group at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) is now significantly closer to achieving this goal. The team of researchers headed by Prof. Dr. Sabine Maier, Prof. Dr. Milan Kivala and Prof. Dr. Andreas Görling has successfully assembled and tested conductors and networks made up of individual, newly developed building block molecules. These could in future serve as the basis of components for optoelectronic systems, such as flexible flat screens or sensors. The FAU researchers have published their results in the journal Nature Communications.



Researchers create first significant examples of optical crystallography for nanomaterials

Thu, 18 May 2017 09:45:45 EDT

Nanocrystals have diverse applications spanning biomedical imaging, light-emitting devices, and consumer electronics. Their unique optical properties result from the type of crystal from which they are composed. However, a major bottleneck in the development of nanocrystals, to date, is the need for X-ray techniques to determine the crystal type.



Gold nanoparticle chains show promise as light conductors

Thu, 18 May 2017 09:24:38 EDT

Today's computers are faster and smaller than ever before. The latest generation of transistors will have structural features with dimensions of only 10 nanometers. If computers are to become even faster and at the same time more energy efficient at these minuscule scales, they will probably need to process information using light particles instead of electrons. This is referred to as "optical computing".



Holographic microscope provides a new tool for nanomedicine to rapidly measure degradation of drug loaded nanoparticles

Thu, 18 May 2017 06:34:13 EDT

UCLA researchers have developed a cost-effective method to rapidly monitor the degradation of drug-carrying nanoparticles using a chip-scale microscope. This nanoparticle characterization platform is based on holography and can accurately monitor the size changes of nanocapsules undergoing degradation, while releasing the contents of their drug cargo. This research provides scientists with a powerful measurement tool that can be used to design better nanocapsules for drug delivery and other nanomedicine-related applications.



Silk proteins paired with renewable wood nanocellulose to produce the strongest artificial spider silk yet

Thu, 18 May 2017 06:18:36 EDT

Possibly the strongest hybrid silk fibers to date have been created by scientists in Sweden using all-renewable resources. Combining spider silk proteins with nanocellulose from wood, the process offers a low-cost and scalable way to make bioactive materials for a wide range of medical uses.



Using graphene to create quantum bits

Thu, 18 May 2017 05:00:01 EDT

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits—or qubits—that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.



Chemists create the ultimate natural sunscreen

Wed, 17 May 2017 08:00:01 EDT

Chemists, materials scientists and nanoengineers at UC San Diego have created what may be the ultimate natural sunscreen.



Managing stress helps transistor performance

Tue, 16 May 2017 11:30:48 EDT

Tensile mechanical stress can have a useful effect for some transistors, where the resulting atomic strain allows its current-carrying electron-hole pairs better mobility. However, when that stress is applied to the whole device, as is a popular approach via use of what's called contact etching stop layers (CESLs), the drift region adjacent to the stretched channel is compressed and results in reduced performance.



The brighter side of twisted polymers

Tue, 16 May 2017 10:40:01 EDT

A strategy to produce highly fluorescent nanoparticles through careful molecular design of conjugated polymers has been developed by KAUST researchers. Such tiny polymer-based particles could offer alternatives to conventional organic dyes and inorganic semiconductor quantum dots as fluorescent tags for medical imaging.



Researchers uncover new way to stimulate the body's immune response

Tue, 16 May 2017 06:09:45 EDT

IBM announced its researchers have identified a new way to trigger the body's immune response by using polymer-coated graphene sheets. The research was recently published in Nature Communications.



How scientists turned a flag into a loudspeaker

Tue, 16 May 2017 05:00:06 EDT

A paper-thin, flexible device created at Michigan State University not only can generate energy from human motion, it can act as a loudspeaker and microphone as well, nanotechnology researchers report in the May 16 edition of Nature Communications.



Stretching the limits of elastic conductors

Mon, 15 May 2017 11:10:02 EDT

A newly developed printable elastic conductor retains high conductivity even when stretched to as much as five times its original length, says a Japanese team of scientists. The new material, produced in paste-like ink form, can be printed in various patterns on textiles and rubber surfaces as stretchable wiring for wearable devices incorporating sensors, as well as give human skin-like functions to robot exteriors.



Gas gives laser-induced graphene super properties

Mon, 15 May 2017 09:21:58 EDT

Rice University scientists who invented laser-induced graphene (LIG) for applications like supercapacitors have now figured out a way to make the spongy graphene either superhydrophobic or superhydrophilic.



Researchers shape the future of nano-electronics

Fri, 12 May 2017 07:50:05 EDT

The future of nano-electronics is here. A team of researchers from the Air Force Research Laboratory, Colorado School of Mines, and the Argonne National Laboratory in Illinois have developed a novel method for the synthesis of a composite material that has the potential of vastly improving the electronics used by the Air Force.



A holey graphene electrode framework that enables highly efficient charge delivery

Fri, 12 May 2017 07:45:30 EDT

(Phys.org)—A team of researchers affiliated with institutions in the U.S., China and the Kingdom of Saudi Arabia has developed a new type of porous graphene electrode framework that is capable of highly efficient charge delivery. In their paper published in the journal Science, the group describes how they overcame traditional conflicts arising between tradeoffs involving density and speed to produce an electrode capable of facilitating rapid ion transport. Hui-Ming Cheng and Feng Li with the Chinese Academy of Sciences offer a Perspective piece on the work done by the team in the same journal issue, and include some opinions of their own regarding where such work is likely heading.



Researchers create anticancer nanomaterials by simulating underwater volcanic conditions

Fri, 12 May 2017 06:17:28 EDT

Researchers at Aalto University, Finland, have developed anticancer nanomaterials by simulating the volcano-induced dynamic chemistry of the deep ocean. The novel method enables making nanoclusters of zinc peroxide in an environmentally friendly manner without the use of additional chemicals. The as-synthesised zinc peroxide nanoparticles can be used as a tool for cancer therapy and against other complex diseases.



'Microscopic Lego' to keep scientists busy 'for next 50 years'

Fri, 12 May 2017 05:30:01 EDT

Atom-scale building blocks that have been compared to microscopic Lego are allowing researchers to play with the properties of common materials, and the possibilities are so great that it could keep scientists busy for the next 50 years.



Synthesis of a carbon nanobelt with potential applications in nanotechnology

Thu, 11 May 2017 07:30:01 EDT

Chemists have tried to synthesize carbon nanobelts for more than 60 years, but none have succeeded until now. A team at Nagoya University reported the first organic synthesis of a carbon nanobelt in Science. Carbon nanobelts are expected to serve as a useful template for building carbon nanotubes and open a new field of nanocarbon science.



'Sister cell' profiling aims to shut down cancer metastasis

Thu, 11 May 2017 07:16:10 EDT

In work that could improve understanding of how cancer spreads, a team of engineers and medical researchers at the University of Michigan developed a new kind of microfluidic chip that can capture rare, aggressive cancer cells, grow them on the chip and release single cells on demand.