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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, 27 Oct 2016 13:58:01 EDT

Copyright: Copyright 2016 American Association for the Advancement of Science (AAAS); All rights reserved.

Metamaterial device allows chameleon-like behavior in the infrared

Thu, 27 Oct 2016 00:00:00 EDT

(Penn State) An electric current will not only heat a hybrid metamaterial, but will also trigger it to change state and fade into the background like a chameleon in what may be the proof-of-concept of the first controllable metamaterial device, or metadevice, according to a team of engineers.

First direct visualization of archaella's rotation using cross-kymography

Wed, 26 Oct 2016 00:00:00 EDT

(Gakushuin University) The first direct observation of rotation and steps of the archaellum in a swimming archaeon use a novel 'cross-kymography' visualization method.

Univeristy at Buffalo to build one-of-a-kind advanced materials data research lab

Wed, 26 Oct 2016 00:00:00 EDT

(University at Buffalo) The University at Buffalo will transform the traditional role of a materials research database as a repository for information into an automated computer laboratory that rapidly collects, interprets and learns from massive amounts of information.

How nanoscience will improve our health and lives in the coming years

Wed, 26 Oct 2016 00:00:00 EDT

(University of California - Los Angeles) Nanoscience research involves molecules 100 times smaller than cancer cells with the potential to profoundly improve the quality of our health and our lives. Now nine prominent nanoscientists look ahead to what we can expect in the coming decade, and conclude that nanoscience is poised to make important contributions in many areas, including health care, electronics, energy, food and water.

Next-generation smartphone battery inspired by the gut

Wed, 26 Oct 2016 00:00:00 EDT

(University of Cambridge) A new prototype of a lithium-sulphur battery -- which could have five times the energy density of a typical lithium-ion battery -- overcomes one of the key hurdles preventing their commercial development by mimicking the structure of the cells which allow us to absorb nutrients.

High-storage sodium ion batteries

Wed, 26 Oct 2016 00:00:00 EDT

(King Abdullah University of Science & Technology (KAUST)) Tin selenide is found to have the highest energy density of any transition metal selenide. It can be combined with sodium ion batteries for high-performing renewable batteries to replace lithium ion.

Recent advances in ligand and structure based screening of potent quorum sensing inhibitors

Wed, 26 Oct 2016 00:00:00 EDT

(Bentham Science Publishers) Computer-aided high throughput ligand and structure based virtual screening are most effective pharmacoinformatic tools prior to experiment.

Yale scientists edit gene mutations in inherited form of anemia

Wed, 26 Oct 2016 00:00:00 EDT

(Yale University) A Yale-led research team used a new gene editing strategy to correct mutations that cause thalassemia, a form of anemia. Their gene editing technique provided corrections to the mutations and alleviated the disease in mice, the researchers said. The finding could lead to studies of a similar gene therapy to treat people with inherited blood disorders.

Supersonic phenomena, the key to extremely low heat loss nano-electronics

Tue, 25 Oct 2016 00:00:00 EDT

(Springer) Freak waves, as well as other less striking localized excitations, occur in nature at every scale. In a recent study, Manuel G. Velarde from the Pluridisciplinary Institute of the University Complutense of Madrid, Spain, and colleagues, performed computer simulations to compare two types of localized excitations in nano-electronics. Their findings, published in a recent study in EPJ B, confirm that such localized excitations are natural candidates for energy storage and transport.

How often do quantum systems violate the second law of thermodynamics?

Tue, 25 Oct 2016 00:00:00 EDT

(University College London) The likelihood of seeing quantum systems violating the second law of thermodynamics has been calculated by UCL scientists.

Can the brain feel it? The world's smallest extracellular needle-electrodes

Tue, 25 Oct 2016 00:00:00 EDT

(Toyohashi University of Technology) A research team from Toyohashi University of Technology developed the world's smallest 5-μm-diameter low-invasive needle electrodes, which are assembled on 1 x 1 mm2 blocks. Surprisingly, high quality neuronal signals from a mouse's cortex were stably recorded for a long period. Their new electrode device reduces the total invasiveness to brain tissue in vivo and realizes stable neural recordings, thus enhancing opportunities for needle-electrode device technology in neurophysiology.

Hybrid nanostructures hold hydrogen well

Mon, 24 Oct 2016 00:00:00 EDT

(Rice University) Three-dimensional structures that combine boron nitride nanotubes and graphene may be suitable for hydrogen storage for cars, according to calculations by Rice University scientists.

The quantum sniffer dog

Mon, 24 Oct 2016 00:00:00 EDT

(Vienna University of Technology) A new kind of sensor to identify gases has been developed at TU Wien (Vienna), based on quantum-cascade-technology. The sensor can emit laser light which is sent through the gas and reflected back into the sensor, where the same structure can act as a light detector.

Flexible optical design method for superconducting nanowire single-photon detectors

Mon, 24 Oct 2016 00:00:00 EDT

(National Institute of Information and Communications Technology (NICT)) The National Institute of Information and Communications Technology has succeeded in the development of flexible optical design method for superconducting nanowire single-photon detectors (SSPDs or SNSPDs). This technique enables SSPDs with a broadband high detection efficiency reject a specific wavelength, and is effective for multidisciplinary applications in fields such as the quantum cryptography, fluorescence spectroscopy, and remote sensing that require high efficiency over a precise spectral range and strong signal rejection at other wavelengths.

New method increases energy density in lithium batteries

Mon, 24 Oct 2016 00:00:00 EDT

(Columbia University School of Engineering and Applied Science) Columbia Engineering Professor Yuan Yang has developed a new method to increase the energy density of lithium batteries. He has built a trilayer structure that is stable even in ambient air, which makes the battery both longer lasting and cheaper to manufacture. The work, which may improve the energy density of lithium batteries by 10-30%, is published online today in Nano Letters.

3-D-printed organ-on-a-chip with integrated sensors

Mon, 24 Oct 2016 00:00:00 EDT

(Harvard John A. Paulson School of Engineering and Applied Sciences) Researchers have made the first entirely 3-D-printed organ-on-a-chip with integrated sensing. Built by a fully automated, digital manufacturing process, the 3-D-printed heart-on-a-chip can be quickly fabricated and customized. This new approach to manufacturing may one day allow researchers to rapidly design organs-on-chips, also known as microphysiological systems, that match the properties of a specific disease or even an individual patient's cells.

Nanosciences: Genes on the rack

Fri, 21 Oct 2016 00:00:00 EDT

(Ludwig-Maximilians-Universität München) Physicists at Ludwig-Maximilians-Universitaet (LMU) in Munich have developed a novel nanotool that provides a facile means of characterizing the mechanical properties of biomolecules.

Nanoantenna lighting-rod effect produces fast optical switches

Fri, 21 Oct 2016 00:00:00 EDT

(University of Southampton) A team of scientists, led by the University of Southampton, have produced a fast nanoscale optical transistor using gold nanoantenna assisted phase transition.

New nanomedicine approach aims to improve HIV drug therapies

Fri, 21 Oct 2016 00:00:00 EDT

(University of Liverpool) New research led by the University of Liverpool aims to improve the administration and availability of drug therapies to HIV patients through the use of nanotechnology.

A novel noninvasive imaging probe for fast and sensitive detection of cancer

Thu, 20 Oct 2016 00:00:00 EDT

(Tokyo Institute of Technology) The ultimate goal of cancer diagnostics is to develop sensitive imaging techniques for reliable detection of tumor malignancy in the body. Scientists at Tokyo Institute of Technology have come close to achieving this goal by developing an injectable imaging probe that can specifically detect solid tumors based on the activity of hypoxia-inducible factor regulated by the ubiquitin-proteasome system.

From ancient fossils to future cars

Thu, 20 Oct 2016 00:00:00 EDT

(University of California - Riverside) Researchers at the University of California, Riverside's Bourns College of Engineering have developed an inexpensive, energy-efficient way to create silicon-based anodes for lithium-ion batteries from the fossilized remains of single-celled algae called diatoms. The research could lead to the development of ultra-high capacity lithium-ion batteries for electric vehicles and portable electronics.

Smashing metallic cubes toughens them up

Thu, 20 Oct 2016 00:00:00 EDT

(Rice University) Rice University scientists smash silver micro-cubes at near supersonic speeds to see how deforming their crystalline structures can make them both stronger and tougher. The research could lead to better materials for high-impact applications like bulletproof vests, vehicle collision protection and advanced material processing techniques.

Move over, solar: The next big renewable energy source could be at our feet

Thu, 20 Oct 2016 00:00:00 EDT

(University of Wisconsin-Madison) Flooring can be made from any number of sustainable materials, making it, generally, an eco-friendly feature in homes and businesses alike. Now, flooring could be even more 'green,' thanks to an inexpensive, simple method developed by University of Wisconsin-Madison materials engineers that allows them to convert footsteps into usable electricity.

Ultralow power transistors could function for years without a battery

Thu, 20 Oct 2016 00:00:00 EDT

(University of Cambridge) A new design for transistors which operate on 'scavenged' energy from their environment could form the basis for devices which function for months or years without a battery, and could be used for wearable or implantable electronics.

New perovskite solar cell design could outperform existing commercial technologies

Thu, 20 Oct 2016 00:00:00 EDT

(Stanford University) Stanford and Oxford scientists have created new perovskite solar cells that that could rival and even outperform conventional cells made of silicon. The novel technology is made with tin and other inexpensive, abundant materials.