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Preview: EurekAlert! - Nanotechnology

EurekAlert! - Nanotechnology

The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.

Last Build Date: Thu, 20 Jul 2017 23:58:01 EDT

Copyright: Copyright 2017 American Association for the Advancement of Science (AAAS); All rights reserved.

USDA announces $4.6 million for nanotechnology research

Thu, 20 Jul 2017 00:00:00 EDT

(National Institute of Food and Agriculture ) The US Department of Agriculture's (USDA) National Institute of Food and Agriculture (NIFA) today announced 13 grants totaling $4.6 million for research on the next generation of agricultural technologies and systems to meet the growing demand for food, fuel, and fiber. The grants are funded through NIFA's Agriculture and Food Research Initiative (AFRI), authorized by the 2014 Farm Bill.

Pulses of electrons manipulate nanomagnets and store information

Thu, 20 Jul 2017 00:00:00 EDT

(American Institute of Physics) Skyrmions are a kind of nanomagnet, comprised of a spin-correlated ensemble of electrons acting as a topological magnet on certain microscopic surfaces. The precise properties, like spin orientation, of such nanomagnets can store information. But how might you go about moving or manipulating these nanomagnets at will to store the data you want? New research demonstrates such read/write ability using bursts of electrons, encoding topological energy structures robustly enough for potential data storage applications.

Strengthening 3-D printed parts for real-world use

Thu, 20 Jul 2017 00:00:00 EDT

(Texas A&M University) From aerospace and defense to digital dentistry and medical devices, 3-D printed parts are used in a variety of industries. Currently, 3-D printed parts are very fragile and traditionally used in the prototyping phase of materials or as a toy for display. A doctoral student in the Department of Materials Science and Engineering at Texas A&M University has pioneered a countermeasure to transform the landscape of 3-D printing today.

Semiliquid chains pulled out of a sea of microparticles

Thu, 20 Jul 2017 00:00:00 EDT

(Faculty of Physics University of Warsaw) An electrode brought to the surface of a liquid that contains microparticles can be used to pull out surprisingly long chains of particles. Curiously enough, the particles in the chains are held together by a thin layer of liquid that covers them. This spectacular phenomenon, discovered with the involvement of Polish scientists and described in the prestigious journal Nature Communications, holds promise for a broad variety of applications.

Microscopic silk cocoons may facilitate drug design

Thu, 20 Jul 2017 00:00:00 EDT

(Weizmann Institute of Science) Microfluidics technology enables silk protein capsules to self-assemble

Probiotics: Novel biosynthetic tool to develop metallic nanoparticles

Thu, 20 Jul 2017 00:00:00 EDT

(Bentham Science Publishers) Probiotics, being live microbes, exert numerous beneficial health effects on the host cells. Such probiotics are commercially available as dietary supplements, foods, pharmaceutical formulations. Yakult, Activia yogurt, DanActive fermented milk provide health benefits like boosting up the immune system, treating digestive problems, mental illness, neurological disorders, cancer, etc.

3-D imaging of surface chemistry in confinement

Thu, 20 Jul 2017 00:00:00 EDT

(Ecole Polytechnique Fédérale de Lausanne) EPFL researchers have developed an optical imaging tool to visualize surface chemistry in real time. They imaged the interfacial chemistry in the microscopically confined geometry of a simple glass micro-capillary. The glass is covered with hydroxyl (-OH) groups that can lose a proton -- a much-studied chemical reaction that is important in geology, chemistry and technology. A 100-micron long capillary displayed a remarkable spread in surface OH bond dissociation constant of a factor of a billion. The research has been published in Science.

Indestructible virus yields secret to creating incredibly durable materials

Wed, 19 Jul 2017 00:00:00 EDT

(University of Virginia Health System) It lives in boiling acid that dissolves flesh and bone. Now scientists have unlocked the secrets of the indestructible virus, potentially allowing them to harness its remarkable properties to create super-durable materials and better treat disease.

Supramolecular materials with a time switch

Wed, 19 Jul 2017 00:00:00 EDT

(Technical University of Munich (TUM)) Materials that assemble themselves and then simply disappear at the end of their lifetime are quite common in nature. Researchers at the Technical University of Munich (TUM) have now successfully developed supramolecular materials that disintegrate at a predetermined time -- a feature that could be used in numerous applications.

Smart toys without the batteries

Wed, 19 Jul 2017 00:00:00 EDT

(American Chemical Society) The greatest challenge in entertaining young children is keeping their toys powered up. Now, one group reports in the journal ACS Sustainable Chemistry & Engineering that they are one step closer to battery-free interactive games.

Manipulating electron spins without loss of information

Wed, 19 Jul 2017 00:00:00 EDT

(University of Basel) Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel's Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

Innovative nanosensor for disease diagnosis

Wed, 19 Jul 2017 00:00:00 EDT

(The Korea Advanced Institute of Science and Technology (KAIST)) A research group at KAIST has developed diagnostic sensors using protein-encapsulated nanocatalysts, which can diagnose certain diseases by analyzing human exhaled breath. This technology enables early monitoring of various diseases through pattern recognition of biomarker gases related to diseases in human exhalation.

UBC researchers test 3-D-printed water quality sensor

Wed, 19 Jul 2017 00:00:00 EDT

(University of British Columbia Okanagan campus) Researchers at UBC's Okanagan campus have designed a tiny device -- built using a 3-D printer -- that can monitor drinking water quality in real time and help protect against waterborne illness.

Control of the unfolded protein response in health and disease

Wed, 19 Jul 2017 00:00:00 EDT

(SLAS (Society for Laboratory Automation and Screening)) Information generated by screening tools, readily available therapies and potential pathways to drug development are the cornerstone of informed clinical research and clinical trial design. In a new review in the August 2017 issue of SLAS Discovery (formerly the Journal of Biomolecular Screening), authors Eric Chevet, Ph.D., of Inserm U1242 (Rennes, France) et al. analyze the recent literature and review the impact of unfolded protein response (UPR) in health and disease.

New harmless radiopaque glue to seal bleeding and guide surgery

Wed, 19 Jul 2017 00:00:00 EDT

(Institute for Basic Science) First nanoparticle-based adhesive with imaging contrast effect in CT and ultrasound was successfully tested in animals and showed less toxicity than the FDA-approved glue CA-Lp.

Silk 'micrococoons' could be used in biotechnology and medicine

Wed, 19 Jul 2017 00:00:00 EDT

(St John's College, University of Cambridge) Microscopic versions of the cocoons spun by silkworms have been manufactured by a team of researchers. The tiny capsules, which are invisible to the naked eye, can protect sensitive molecular materials, and could prove a significant technology in areas including food science, biotechnology and medicine.

'Nano-in-micro' stem cell delivery could rescue blood flow after injury

Wed, 19 Jul 2017 00:00:00 EDT

(American Chemical Society) When blood flow is reduced or cut to tissues, cells are deprived of oxygen and nutrients, which can lead to cell death if blood flow isn't efficiently restored. Stem cells are promising treatments, but they do not tend to stay at the site or survive long enough to heal the damage. Today in ACS Central Science, researchers combine micro and nano approaches to improve stem cell therapies and outcomes after ischemia, or inadequate blood supply.

RIT wins Department of Energy award to improve wiring for advanced electric equipment

Tue, 18 Jul 2017 00:00:00 EDT

(Rochester Institute of Technology) Researchers at Rochester Institute of Technology are working with corporate and government partners to develop more efficient, durable and cost-effective carbon nanotube technology in electronic components and systems that now use copper wiring.

Team develops fast, cheap method to make supercapacitor electrodes

Mon, 17 Jul 2017 00:00:00 EDT

(University of Washington) University of Washington researchers have developed a fast, inexpensive method to make electrodes for supercapacitors, with applications in electric cars, wireless telecommunications and high-powered lasers.

The new technology for porous material production

Mon, 17 Jul 2017 00:00:00 EDT

(Peter the Great Saint-Petersburg Polytechnic University) The new technology of producing unsinkable material from the aluminum alloy was patented at Peter the Great St. Petersburg Polytechnic University.The effect of porosity is produced by addition of foaming gas into liquid metal during re-melting of the aluminum material. The porous materials can be used for increase of structures stiffness and sound and heat insulating proprieties.

Tiny particles increase in air with ethanol-to-gasoline switch

Mon, 17 Jul 2017 00:00:00 EDT

(Northwestern University) The concentration of ultrafine particles less than 50 nanometers in diameter rose by one-third in the air of São Paulo, Brazil, when higher ethanol prices induced drivers to switch from ethanol to gasoline, according to a new study by a Northwestern University chemist, a National University of Singapore economist and two University of São Paulo physicists. The research team also found when drivers switched back to ethanol because prices had gone down, the concentration of ultrafine particles also went down.

Breathable, wearable electronics on skin for long-term health monitoring

Mon, 17 Jul 2017 00:00:00 EDT

(University of Tokyo) A hypoallergenic electronic sensor can be worn on the skin continuously for a week without discomfort, and is so light and thin that users forget they even have it on, says a Japanese group of scientists. The elastic electrode constructed of breathable nanoscale meshes holds promise for the development of noninvasive e-skin devices that can monitor a person's health continuously over a long period.

A firefly's flash inspires new nanolaser light

Sun, 16 Jul 2017 00:00:00 EDT

(King Abdullah University of Science & Technology (KAUST)) KAUST researchers predict that synchronized emissions from new on-chip lasers can produce artificial neural networks at low cost.

Coupling a nano-trumpet with a quantum dot enables precise position determination

Fri, 14 Jul 2017 00:00:00 EDT

(University of Basel) Scientists from the Swiss Nanoscience Institute and the University of Basel have succeeded in coupling an extremely small quantum dot with 1,000 times larger trumpet-shaped nanowire. The movement of the nanowire can be detected with a sensitivity of 100 femtometers via the wavelength of the light emitted by the quantum dot. Conversely, the oscillation of the nanowire can be influenced by excitation of the quantum dot with a laser. Nature Communications published the results.

Fluorine grants white graphene new powers

Fri, 14 Jul 2017 00:00:00 EDT

(Rice University) Fluorination of hexagonal boron nitride, a common insulator, turns it into a magnetic semiconductor. That may make the heat-resistant material suitable for electronics and sensors in extreme environments.