Fri, 20 Jan 2017 09:00:01 EST(Phys.org)—One target therapy in cancer research is to suffocate the tumor. Cells need oxygen to survive so researchers have focused on methods for cutting off the blood supply to the tumor. Very little research has involved the direct removal of oxygen within the tumor.
Fri, 20 Jan 2017 08:30:01 EST(Phys.org)—A team of researchers at Peking University has built a carbon nanotube-based working transistor and report that it outperformed larger transistors made with silicon. In their paper published in the journal Science, the team describes how they built the transistor, how it performed and the challenges that still remain before such transistors can be mass produced.
Fri, 20 Jan 2017 05:19:43 ESTResearchers at the Moscow Institute of Physics and Technology propose a method to precisely predict the level of noise caused by the amplification of photonic and plasmonic signals in nanoscale optoelectronic circuits. In their research published in Physical Review Applied, the scientists describe an approach that can be used to evaluate the ultimate data transfer rates in the emerging optoelectronic microprocessors and discover fundamental limitations on the bandwidth of nanophotonic interfaces.
Thu, 19 Jan 2017 16:39:25 ESTA UCF researcher has combined cutting-edge nanoscience with a magnetic phenomenon discovered more than 170 years ago to create a method for speedy medical tests.
Thu, 19 Jan 2017 14:00:04 ESTA simple technique for producing oxide nanowires directly from bulk materials could dramatically lower the cost of producing the one-dimensional (1D) nanostructures. That could open the door for a broad range of uses in lightweight structural composites, advanced sensors, electronic devices - and thermally-stable and strong battery membranes able to withstand temperatures of more than 1,000 degrees Celsius.
Thu, 19 Jan 2017 12:15:03 ESTSilicon crystals are the semiconductors most commonly used to make transistors, which are critical electronic components used to carry out logic operations in computing. However, as faster and more powerful processors are created, silicon has reached a performance limit: the faster it conducts electricity, the hotter it gets, leading to overheating.
Thu, 19 Jan 2017 06:54:45 ESTIn an advance that could lead to improved manufacturing, a new study by UCLA researchers shows that adding nanoparticles to metals during the melting process allows for better control during melting.
Thu, 19 Jan 2017 06:50:11 ESTResearch by scientists at Swansea University is helping to meet the challenge of incorporating nanoscale structures into future semiconductor devices that will create new technologies and impact on all aspects of everyday life.
Thu, 19 Jan 2017 05:00:01 ESTResearchers have found a way to trigger the innate, but previously hidden, ability of graphene to act as a superconductor - meaning that it can be made to carry an electrical current with zero resistance.
Wed, 18 Jan 2017 10:36:09 ESTTreatment for certain diabetes cases involves constant monitoring of blood-glucose levels and daily insulin shots. But scientists are now developing a painless "smart" patch that monitors blood glucose and releases insulin when levels climb too high. The report on the device, which has been tested on mice, appears in the journal ACS Nano.
Wed, 18 Jan 2017 08:10:03 ESTAn international group of scientists has created a new approach to the diagnostics of breast cancer with the help of nanoparticles of porous silicone.
Wed, 18 Jan 2017 06:02:00 ESTWe are familiar with cracks in big or small three-dimensional (3-D) objects, but how do thin, two-dimensional (2-D) materials crack? 2-D materials like molybdenum disulfide (MoS2), have emerged as an important asset for future electronic and photoelectric devices. However, the mechanical properties of 2-D materials are expected to differ greatly from 3-D materials. Scientists at the Institute for Basic Science (IBS) have published the first observation of 2-D MoS2 cracking at the atomic level in Nature Communications. This study is expected to contribute to the applications of new 2-D materials.
Tue, 17 Jan 2017 16:16:27 ESTIn research that could one day lead to advances against neurodegenerative diseases like Alzheimer's and Parkinson's, University of Michigan engineering researchers have demonstrated a technique for precisely measuring the properties of individual protein molecules floating in a liquid.
Tue, 17 Jan 2017 13:38:24 ESTMicrobiologists at the University of Massachusetts Amherst report that they have discovered a new type of natural wire produced by bacteria that could greatly accelerate the researchers' goal of developing sustainable "green" conducting materials for the electronics industry. The study by Derek Lovley and colleagues appears this week in mBio, the American Society of Microbiology's premier journal.
Tue, 17 Jan 2017 07:25:29 ESTBased on a study of the optical properties of novel ultrathin semiconductors, researchers of Ludwig-Maximilians-Universitaet (LMU) in Munich have developed a method for rapid and efficient characterization of these materials.
Tue, 17 Jan 2017 07:22:43 ESTDGIST announced that Professor Kyung-in Jang's research team succeeded in developing a technology that can control various color changes by coating several nanometers of semiconducting materials on a metal substrate through joint research with a research team led by professor Young-min Song of GIST.
Mon, 16 Jan 2017 09:30:02 EST(Phys.org)—Researchers have found that a snowflake-like fractal design, in which the same pattern repeats at smaller and smaller scales, can increase graphene's inherently low optical absorption. The results lead to graphene photodetectors with an order-of-magnitude increase in photovoltage, along with ultrafast light detection and other advantages.
Mon, 16 Jan 2017 09:24:51 ESTNanoparticles from combustion engines can activate viruses that are dormant in in lung tissue cells. This is the result of a study by researchers of Helmholtz Zentrum München, a partner in the German Center for Lung Research (DZL), which has now been published in the journal 'Particle and Fibre Toxicology'.
Mon, 16 Jan 2017 07:29:15 ESTAn international team of scientists has organized the available bibliographic data on bilayer graphene, a high-potential material with possible applications in electronics and optics. The review paper was published in Physics Reports.
Mon, 16 Jan 2017 06:13:45 ESTAn ultralight high-performance mechanical watch made with graphene is unveiled today in Geneva at the Salon International De La Haute Horlogerie thanks to a unique collaboration.
Mon, 16 Jan 2017 05:00:03 ESTIn a lab 18 feet below the Engineering Quad of Stanford University, researchers in the Dionne lab camped out with one of the most advanced microscopes in the world to capture an unimaginably small reaction.
Fri, 13 Jan 2017 09:41:38 ESTResearchers from Trinity College Dublin, Ireland have shown that PtSe2, a little-studied transition metal dichalcogenide has potential for a variety of uses. In particular, PtSe2 is an excellent high performance gas sensor, and fabrication is compatible with silicon chip foundrys.
Fri, 13 Jan 2017 09:36:14 ESTNanotechnology is regarded as the key technology of the 21st century, delivering the fundamental methods, which allow objects just a few hundred nanometers in size to be produced in any required shape. These objects find applications practically everywhere – be it for microprocessors and electrical circuits in computers, in the telecommunications industry, or in medicine and biotechnology – to name just a few. To encourage the development of new manufacturing processes the EU recently established the Marie Curie Training Network "ELENA" (low energy electron-driven chemistry for the advantage of emerging nanofabrication methods). Empa is one of the project partners, together with 13 universities, three research institutes and five industrial partners, drawn from a total of 13 countries.
Fri, 13 Jan 2017 09:30:05 EST(Phys.org)—Researchers may have found a "sweet spot" for organic electronics by fabricating a new 2D semiconducting polymer-blended nanonetwork material that simultaneously achieves excellent charge mobility, high flexibility, and nearly 100% optical transparency—a combination of properties that has so far been elusive for semiconducting materials. According to the researchers, the nanonetwork is the first truly colorless, bendable semiconducting material, as demonstrated by the fabrication of field-effect transistors with integrated LEDs.
Fri, 13 Jan 2017 09:06:00 ESTSelf-assembly of matter is one of the fundamental principles of nature, directing the growth of larger ordered and functional systems from smaller building blocks. Self-assembly can be observed in all length scales from molecules to galaxies. Now, researchers at the Nanoscience Centre of the University of Jyväskylä and the HYBER Centre of Excellence of Aalto University in Finland report a novel discovery of self-assembling two- and three-dimensional materials that are formed by tiny gold nanoclusters of just a couple of nanometres in size, each having 102 gold atoms and a surface layer of 44 thiol molecules. The study, conducted with funding from the Academy of Finland and the European Research Council, has been published in Angewandte Chemie, one of the world's leading journals in chemistry.
Thu, 12 Jan 2017 07:50:01 ESTRecently, researchers from Tsinghua University, Queen Mary University of London, and Institute of Metal Research, Chinese Academy of Sciences, have reported a promising graphene catalyst obtained from sticky rice, and revealed the critical importance of topological defects both experimentally and theoretically.
Wed, 11 Jan 2017 13:44:31 ESTSolar cells made with films mimicking the structure of the mineral perovskite are the focus of worldwide research. But only now have researchers at Case Western Reserve University directly shown the films bear a key property allowing them to efficiently convert sunlight into electricity.
Wed, 11 Jan 2017 13:00:03 ESTDefects and jagged surfaces at the edges of nanosized platinum and gold particles are key hot spots for chemical reactivity, a team of researchers working at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the Hebrew University of Jerusalem in Israel confirmed with a unique infrared probe.
Wed, 11 Jan 2017 09:30:01 EST(Phys.org)—Researchers have brought electrides into the nanoregime by synthesizing the first 2D electride material. Electrides are ionic compounds, which are made of negative and positive ions. But in electrides, the negative "ions" are simply electrons, with no nucleus. The electrons are very close to each other and very loosely bound, causing them to act as an electron gas. This electron gas gives electrides certain electrical properties, such as a high electrical mobility and rapid electrical transport, that are very attractive for electronics applications.
Tue, 10 Jan 2017 10:31:06 ESTCarbon nanotubes have made headlines in scientific journals for a long time, as has 3D printing. But when both combine with the right polymer, in this case a thermoplastic, something special occurs: electrical conductivity increases and makes it possible to monitor liquids in real time. This is a huge success for Polytechnique Montréal.