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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: Sat, 18 Nov 2017 11:58:01 EST

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



Semiconducting carbon nanotubes can reduce noise in carbon nanotube interconnects

Fri, 17 Nov 2017 00:00:00 EST

(Bentham Science Publishers) This paper presents reduction of crosstalk and noise in CNT bundle interconnects. We propose the use of small diameter semiconducting CNTs as electromagnetic interference shields for CNT bundle interconnects.



Scientists capture colliding organic nanoparticles on video for first time

Fri, 17 Nov 2017 00:00:00 EST

(Northwestern University) 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.



'Ion billiards' cue novel material synthesis method

Thu, 16 Nov 2017 00:00:00 EST

(Hokkaido University) A team of Hokkaido University researchers has developed a novel material synthesis method called proton-driven ion introduction (PDII) which utilizes a phenomenon similar to 'ion billiards.' The new method could pave the way for creating numerous new materials, thus drastically advancing materials sciences.



New imaging technique peers inside living cells

Thu, 16 Nov 2017 00:00:00 EST

(Northwestern University) Called Ultrasound Bioprobe, the non-invasive approach developed at Northwestern University allows researchers to view sub-cellular structures and their mechanical behavior at nanoscale resolution.



Finding Majoranas

Thu, 16 Nov 2017 00:00:00 EST

(University of California - Santa Barbara) Nano-'hashtags' could be the key to generating the highly sought Majorana quasiparticle.



New motion sensors a major step toward low-cost, high-performance wearable technology

Thu, 16 Nov 2017 00:00:00 EST

(Florida State University) Researchers from the FAMU-FSU College of Engineering have developed a class of breakthrough motion sensors that could herald a near future of ubiquitous, fully integrated and affordable wearable technology.



Ceria nanoparticles: It is the surface that matters

Thu, 16 Nov 2017 00:00:00 EST

(Karlsruher Institut für Technologie (KIT) ) Exhaust gas cleaning of passenger cars, power generation from sunlight, or water splitting: In the future, these and other applications may profit from new findings relating to ceria. 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 partly surprising new insights into their surface structure and chemical activity. Work is reported in three articles published in the journal Angewandte Chemie (applied chemistry).



The stacked color sensor

Thu, 16 Nov 2017 00:00:00 EST

(Swiss Federal Laboratories for Materials Science and Technology (EMPA)) Red-sensitive, blue-sensitive and green-sensitive colour sensors stacked on top of each other instead of being lined up in a mosaic pattern -- this principle could allow image sensors with unprecedented resolution and sensitivity to light to be created. However, up to now, the reality hasn't quite met expectations. Researchers from Empa and ETH Zurich have now developed a sensor prototype that absorbs light almost optimally -- and which is also cheap to produce.



Spinning cylinders to recreate nature's patterns

Wed, 15 Nov 2017 00:00:00 EST

(Institute for Basic Science) New method to create dynamic tubular structures, inspired by leaves around a stem, scales on pine cone, and viruses' tails.



Wine 'legs' and minibot motors (video)

Wed, 15 Nov 2017 00:00:00 EST

(American Chemical Society) As any wine enthusiast knows, the 'legs' that run down a glass after a gentle swirl of vino can yield clues about alcohol content. Interestingly, the physical phenomenon that helps create these legs can be harnessed to propel tiny motors to carry out tasks on the surface of water. Scientists demonstrate the motors in a report in ACS' journal Langmuir.



Three-dimensional nanomagnets for the computer of tomorrow

Wed, 15 Nov 2017 00:00:00 EST

(FECYT - Spanish Foundation for Science and Technology) Since the late 60's electronic devices have stored and transmitted information (bits) in two-dimensional circuits. Now, researchers at the University of Cambridge have been able to break this barrier by creating a nanoscale magnetic circuit capable of moving information along the three dimensions of space. This breakthrough could lead to an important increase in storage and processing capacities of electronic devices over those used today.



Counterfeits and product piracy can be prevented by security features, such as printed 3-D microstructures

Wed, 15 Nov 2017 00:00:00 EST

(Karlsruher Institut für Technologie (KIT) ) Security features are to protect bank notes, documents, and branded products against counterfeiting. Losses caused by product forgery and counterfeiting may be enormous. According to the German Engineering Association, the damage caused in 2016 in its branch alone amounted to EUR 7.3 billion. In the Advanced Materials Technologies journal, researchers of Karlsruhe Institute of Technology (KIT) and the ZEISS company now propose to use printed 3-D microstructures instead of 2-D structures, such as holograms, to improve counterfeit protection.



Engineering of a Swedish quantum computer set to start

Wed, 15 Nov 2017 00:00:00 EST

(Chalmers University of Technology) A SEK 1 billion research initiative is setting Sweden on course to a global top position in quantum technology. The focus is on developing a quantum computer with much greater computing power than the best supercomputers of today. The initiative, which is headed up by Professor Per Delsing at Chalmers University of Technology, has been made possible by an anniversary donation of SEK 600 million from the Knut and Alice Wallenberg Foundation.



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

Tue, 14 Nov 2017 00:00:00 EST

(Karlsruher Institut für Technologie (KIT) ) 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.



Essential quantum computer component downsized by two orders of magnitude

Tue, 14 Nov 2017 00:00:00 EST

(Institute of Science and Technology Austria) Qubits, the key building blocks at the heart of every quantum computer, are extremely sensitive to interference and need to be shielded from unwanted signals, for example by using so-called nonreciprocal devices. But until now these devices were huge and produced unwanted magnetic fields themselves. Now, scientists at IST Austria have developed a new nonreciprocal device that is only a tenth of a millimeter wide, and -- maybe even more importantly -- is not magnetic.



Quantum computing with molecules for a quicker search of unsorted databases

Tue, 14 Nov 2017 00:00:00 EST

(Karlsruher Institut für Technologie (KIT) ) Scrapbooks or social networks are collections of mostly unsorted data. The search for single elements in very large data volumes, i.e. for the needle in the data haystack, is extremely complex for classical computers. Scientists of Karlsruhe Institute of Technology (KIT) have now quantum mechanically implemented and successfully executed Glover's algorithm, a process for the quick finding of a search element in unsorted databases. Their results are reported in the Physical Review Letters.



Multifunctional fluorescent nanoparticles for cancer surgery show promise

Tue, 14 Nov 2017 00:00:00 EST

(American Association of Pharmaceutical Scientists) Even with pre-operative imaging techniques, surgeons still rely on visual inspection to locate malignant tissues during surgery. New research released today at the 2017 American Association of Pharmaceutical Scientists (AAPS) Annual Meeting and Exposition may help surgeons better view and treat these tumor cells with engineered naphthalocyanine-based nanoparticles (SiNc-PNP) injected 24 hours before surgery, which then light up when they connect with the cancerous tumors.



Molecular magnetism packs power with 'messenger electron'

Mon, 13 Nov 2017 00:00:00 EST

(University of Wisconsin-Madison) A UW-Madison lab has made a molecule that gains magnetic strength through an unusual way of controlling those spins, which could lead to a breakthrough in quantam computing.



Ben-Gurion U. researchers camouflage an optical chip rendering it invisible

Mon, 13 Nov 2017 00:00:00 EST

(American Associates, Ben-Gurion University of the Negev) The researachers showed that it is possible to bend the light around an object located on the cloak on an optical chip. The light does not interact with the object, thus resulting in the object's invisibility.



Researchers fold a protein within a protein

Mon, 13 Nov 2017 00:00:00 EST

(National University of Singapore, Yong Loo Lin School of Medicine) A research team led by a clinician scientist at the Yong Loo Lin School of Medicine, National University of Singapore, has demonstrated it is possible to fold a protein within an engineered protein shell. This is a fundamental breakthrough in synthetic biology with significant applications in the biologics and pharmaceutical sectors.



3...2...1...Launch! Graphene goes zero G!

Mon, 13 Nov 2017 00:00:00 EST

(Graphene Flagship) Two teams of researchers will explore the benefits of graphene as a light-propulsion material in solar sails, and as a smart coating in loop heat pipes for satellites. Both experiments will be performed in microgravity conditions, to simulate the extreme conditions in space. The solar sails will float in microgravity in a drop tower experiment, while the research team investigating heat pipes will experience weightlessness onboard a parabolic flight.



Learning from photosynthesis

Mon, 13 Nov 2017 00:00:00 EST

(Arizona State University) Hao Yan and Neal Woodbury from ASU's Biodesign Institute and colleagues from Harvard and MIT, explore new methods to capitalize on Nature's light-harvesting secrets. Their new study outlines the design of a synthetic system for energy gathering, conversion and transport that may point the way to innovations in solar energy, materials science, nanotechnology and photonics.



Genetic engineering mechanism visualized

Mon, 13 Nov 2017 00:00:00 EST

(Kanazawa University) Researchers at Kanazawa University and the University of Tokyo report in Nature Communications the visualization of the dynamics of 'molecular scissors' -- the main mechanism of the CRISPR-Cas9 genetic-engineering technique.



Nano-targeting treatment for prostate cancer

Mon, 13 Nov 2017 00:00:00 EST

(American Association of Pharmaceutical Scientists) Metastatic or castrate-resistant prostate cancer can spread to the bone in certain patients. While several new treatments are available, they can have a difficult time reaching the bone and can result in missing the metastatic lesions. New research presented today at the 2017 American Association of Pharmaceutical Scientists (AAPS) Annual Meeting and Exposition seeks to address this challenge with the development of a bone-targeted nanoparticle (NP) that delivers the chemotherapy drug cabazitaxel directly to the bone.



Fuel cell X-ray study details effects of temperature and moisture on performance

Mon, 13 Nov 2017 00:00:00 EST

(DOE/Lawrence Berkeley National Laboratory) To find the right balance of moisture and temperature in a specialized type of hydrogen fuel cell, Berkeley Lab scientists have used X-rays to explore the inner workings of its components at tiny scales.