The next generation of light-manipulating networks may take their lead from designs inspired by spiders and leaves, according to a new report from two Boston College physicists and colleagues at South China Normal University.
A Kansas State University engineering team has...
In a development that could lead to a deeper understanding of cancer and better early-stage...
Hydrogen fuel is a promising source of clean energy that can be produced by splitting water into hydrogen and oxygen gas. The reaction is difficult but achievable with the help of a catalyst. However, current catalysts lack the efficiency required for water splitting to be commercially competitive. Recently, however, scientists have identified one such catalyst, iron-doped nickel oxide.
Four pulses of laser light on nanoparticle photocells in a spectroscopy experiment has opened a window on how captured sunlight can be converted into electricity. The work, which potentially could inspire devices with improved efficiency in solar energy conversion, was performed on photocells that used lead-sulfide quantum dots as photoactive semiconductor material.
A team at Cornell University has made a breakthrough in that direction with a room-temperature magnetoelectric memory device. Equivalent to one computer bit, it exhibits the holy grail of next-generation nonvolatile memory: magnetic switchability, in two steps, with nothing but an electric field.
Researchers at Swinburne University of Technology have discovered an instability in gold nanoparticles that is critical for their application in future technology. Gold nanorods are important building blocks for future applications in solar cells, cancer therapy and optical circuitry.
A team from the University of Arizona and eight Southwestern electric utility companies has built a pioneering web portal that provides insight into renewable energy sources and how they contribute to the region’s electricity grid.
If you are away from the bustle of the city these holidays, then try your luck at spotting a faint comet in the northern sky. Comet Lovejoy C/2014 Q2 is the fifth comet to be discovered by Brisbane amateur astronomer Terry Lovejoy. Comets are the only astronomical objects that are automatically named for the person who found them.
Spotting molecule-sized features may become both easier and more accurate with a sensor developed at NIST. With their new design, NIST scientists may have found a way to sidestep some of the problems in calibrating atomic force microscopes (AFMs). The AFM is one of the main scientific workhorses of the nano age.
In a development that holds promise for future magnetic memory and logic devices, researchers have successfully used an electric field to reverse the magnetization direction in a multiferroic spintronic device at room temperature. This demonstration, which runs counter to conventional scientific wisdom, points a new way towards spintronics and smaller, faster and cheaper ways of storing and processing data.
Univ. of California, Los Angeles researchers have developed a lens-free microscope that can be used to detect the presence of cancer or other cell-level abnormalities with the same accuracy as larger and more expensive optical microscopes. The invention could lead to less expensive and more portable technology for performing common examinations of tissue, blood and other biomedical specimens.
A new catalytic process is able to convert what was once considered biomass waste into lucrative chemical products that can be used in fragrances, flavorings or to create high-octane fuel. A team of researchers from Purdue Univ.'s Center for Direct Catalytic Conversion of Biomass to Biofuels, or C3Bio, has developed a process that uses a chemical catalyst and heat to spur reactions that convert lignin into valuable chemical commodities.
Scientists have used advanced microscopy to carve out nanoscale designs on the surface of a new class of ionic polymer materials for the first time. The study provides new evidence that atomic force microscopy, or AFM, could be used to precisely fabricate materials needed for increasingly smaller devices.
More than 90% of cancer-related deaths are caused by the spread of cancer cells from their primary tumor site to other areas of the body. A new study has identified how one important gene helps cancer cells break free from the primary tumor.
Mistletoe hanging in doorways announces that the holidays are just around the corner. For some people, however, the symbolic plant might one day represent more than a kiss at Christmas time: It may mean better liver health. Researchers have found that a compound produced by a particular variety of the plant can help fight obesity-related liver disease in mice.
A new study is helping to answer a longstanding question that has recently moved to the forefront of Earth science: Did our planet make its own water through geologic processes, or did water come to us via icy comets from the far reaches of the solar system? The answer is likely both.
Newly published research provides the first demonstration of how a genetic mutation associated with a common form of albinism leads to the lack of melanin pigments that characterizes the condition. About 1 in 40,000 people worldwide have type 2 oculocutaneous albinism, which has symptoms of unusually light hair and skin coloration, vision problems and reduced protection from sunlight-related skin or eye cancers.
A Yale Univ. laboratory has crafted the first synthetic molecules that have both the targeting and response functions of antibodies. The new molecules attach themselves simultaneously to disease cells and disease-fighting cells. The result is a highly targeted immune response, similar to the action of natural human antibodies.
NASA's Mars rover, Curiosity, has detected spikes of methane in the planet's atmosphere. That suggests something is producing or venting the scientifically tantalizing gas, but no one knows what. Most of Earth's atmospheric methane comes from animal and plant life, and the environment itself. So the Martian methane raises the question of past or present microbial life.
Rice Univ. scientists have detected at least three instances of cross-species mating that likely influenced the evolutionary paths of “old world” mice, two in recent times and one in the distant past. The researchers think these instances of introgressive hybridization are only the first of many needles waiting to be found in a very large genetic haystack.
Nearly 2,000 planets beyond our solar system have been identified to date. Whether any of these exoplanets are hospitable to life depends on a number of criteria. Among these, scientists have thought, is a planet’s obliquity—the angle of its axis relative to its orbit around a star.
An analysis of the ongoing Ebola outbreak reveals that transmission of the virus occurs in social clusters, a finding that has ramifications for case reporting and the public health. Prior studies of Ebola transmission were based on models that assumed the spread of infection occurred between random pairs of individuals.
Researchers at NYU Langone Medical Center have developed new technology that can assess the location and impact of a brain injury merely by tracking the eye movements of patients as they watch music videos for less than four minutes, according to a study published online in the Journal of Neurosurgery.
Lawrence Livermore National Laboratory researchers in conjunction with collaborators at Univ. of California, Los Angeles have found that some cells build intracellular compartments that allow the cell to store metals and maintain equilibrium. Nearly 40% of all proteins require metal ions such as zinc, copper, manganese or iron for activity.
Massachusetts Institute of Technology researchers have discovered a new mathematical relationship—between material thickness, temperature and electrical resistance—that appears to hold in all superconductors. The result could shed light on the nature of superconductivity and could also lead to better-engineered superconducting circuits for applications like quantum computing and ultra-low-power computing.
In one of the most comprehensive laboratory studies of its kind, Rice Univ. scientists traced the uptake and accumulation of quantum dot nanoparticles from water to plant roots, plant leaves and leaf-eating caterpillars. The study found that nanoparticle accumulation in both plants and animals varied significantly depending upon the type of surface coating applied to the particles.
Duke Univ. scientists have developed new forensic tracers to identify coal ash contamination in water and distinguish it from contamination coming from other sources. Previous methods to identify coal ash contaminants in the environment were based solely on the contaminants’ chemical variations. The newly developed tracers provide additional forensic fingerprints that give regulators a more accurate and systematic tool.
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