Argonne scientists have determined that electrons in some oxides can experience an “unconventional slowing down” of their response to a light pulse. This behavior may result in potentially useful properties related to magnetism, conductivity or even superconductivity.
A “smart” bandage is designed to monitor the condition of chronic wounds and deliver drug treatments to improve chances of healing. While the bandages remain to be assessed in a clinical context, the research is aimed at transforming bandaging from a passive to an active treatment paradigm.
University of Adelaide-led research has moved the world one step closer to reliable, high-performance quantum computing.
Polymer plastic solar cells remain an industry priority because of their light weight, flexibility and cost-effectiveness. Now scientists from Stony Brook University and the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory (BNL) have demonstrated that these types of solar cells can be more efficient and have more stability based on new research findings.
Participants in Stony Brook University's (SBU) High School Women in Science and Engineering program brought the graphene oxide microspheres they synthesized at SBU to the Center for Functional Nanomaterials for imaging via electron microscopy.
Best-selling science fiction author Andy Weir visited Argonne to give a series of standing-room-only talks, inspiring students and scientists alike.
A discovery by scientists at the Department of Energy’s Oak Ridge National Laboratory supports a century-old theory by Albert Einstein that explains how heat moves through everything from travel mugs to engine parts.
Researchers at the Department of Energy’s SLAC National Accelerator Laboratory have recorded the most detailed atomic movie of gold melting after being blasted by laser light. The insights they gained into how metals liquefy have potential to aid the development of fusion power reactors, steel processing plants, spacecraft and other applications where materials have to withstand extreme conditions for long periods of time.
A multicolor laser pointer you can use to change the color of the laser with a button click — similar to a multicolor ballpoint pen — is one step closer to reality thanks to a new tiny synthetic material made at Sandia National Laboratories. Research on the new light-mixing metamaterial was published in Nature Communications earlier today.
The Blavatnik Family Foundation and the New York Academy of Sciences today announced the 2018 Laureates of the Blavatnik National Awards for Young Scientists, who will each receive $250,000: the largest unrestricted scientific prize offered to America’s most promising faculty-level scientific researchers 42 years of age and younger.
For the first time, researchers have created a nanocomposite of ceramics with a two-dimensional material that opens the door to new designs of nanocomposites with a variety of applications, such as solid-state batteries thermoelectrics, varistors, catalysts, chemical sensors and much more.
A Mississippi State faculty member and structural biophysicist is the recipient of a $1.8 million grant from the National Institutes of Health to study how bacterial proteins attach to surfaces and impact public health.
A new supercapacitor could be a competitive alternative to lithium-ion batteries.
Atom probe tomography reveals key explanations for stable performance over a cutting-edge diesel-exhaust catalyst’s lifetime.
A nickelate thin film senses electric field changes analogous to the electroreception sensing organ in sharks, which detects the bioelectric fields of prey.
Let’s talk! Scientists demonstrate coherent coupling between a quantum dot and a donor atom in silicon, vital for moving information inside quantum computers.
In a paper published in Nature, a team led by Uli Wiesner, the Spencer T. Olin Professor of Engineering in the Department of Materials Science and Engineering at Cornell University, reports discovery of 10-nanometer, individual, self-assembled dodecahedral structures – 12-sided silica cages that could have applications in mesoscale material assembly, as well as medical diagnosis and therapeutics.
• Chameleons change color by controlling the spacing among nanocrystals on their skin • Northwestern’s nanolaser changes color similarly — by controlling the spacing among metal nanoparticles • By stretching and releasing an elastic substrate, the nanoparticles move further apart or closer together to control color
Researchers at Missouri University of Science and Technology have discovered a new way to harness the potential of a type of spontaneously oxidized MXene thin films, to create nanocomposites that could sense both light and the environment. Previously, such spontaneous oxidation was considered detrimental because it degrades the MXene structure. The research is published in the June 2018 issue of ACS Nano, one of Google Scholar’s top-rated, peer-reviewed scientific journals.
Researchers at Los Alamos and partners in France and Germany are exploring the enhanced potential of carbon nanotubes as single-photon emitters for quantum information processing. Their analysis of progress in the field is published in this week’s edition of the journal Nature Materials.
Researchers have found a way to convert nanoparticle-coated microscopic beads into lasers smaller than red blood cells. These microlasers, which convert infrared light into light at higher frequencies, are among the smallest continuously emitting lasers of their kind ever reported and can constantly and stably emit light for hours at a time, even when submerged in biological fluids such as blood serum.
Graphene electrodes could enable higher quality brain imaging thanks to new research by a team of engineers and neuroscientists at UC San Diego. The researchers developed a technique, using platinum nanoparticles, to lower the impedance of graphene electrodes by 100 times while keeping them transparent. In tests on transgenic mice, the electrodes were able to record and image neuronal activity (calcium ion spikes) at of large groups of neurons and individual brain cells.
Profiled is Zili Wu of the Department of Energy’s Oak Ridge National Laboratory, who leads ORNL’s Surface Chemistry and Catalysis group and conducts research at the Center for Nanophase Materials Sciences, a DOE Office of Science User Facility at ORNL.
A team of physicists at the University of Vermont have discovered a fundamentally new way surfaces can get wet. Their study may allow scientists to create the thinnest films of liquid ever made—and engineer a new class of surface coatings and lubricants just a few atoms thick.
By Julie Hammonds Office of the Vice President for ResearchA Northern Arizona University physicist who studies complex, hybrid nanomaterials has been recognized for his academic leadership and the quality and innovation of his research. The Research Corporation for Science Advancement (RCSA) recently named assistant professor John Gibbs a 2018 Cottrell Scholar.
A team of scientists working at Berkeley Lab has confirmed a special property known as “chirality” – which potentially could be exploited to transmit and store data in a new way – in nanometers-thick samples of multilayer materials that have a disordered structure.
Researchers have synthesized the first molecule capable of insulating at the nanometer scale more effectively than a vacuum barrier. The team’s insight was to exploit the wave nature of electrons. By designing an extremely rigid silicon-based molecule under 1 nm in length that exhibited comprehensive destructive interference signatures, they devised a novel technique for blocking tunnelling conduction. This new design principle has the potential to support continued miniaturization of classic transistors in the near term.
Technion researchers have found they can significantly increase agricultural yields, by using nanoscale delivery platforms that until now were used to transport drugs to specific targets in a patient's body. The technology increases the penetration rate of nutrients into the plant, from 1% to approximately 33%.
Diseased cells such as metastatic cancer cells have markedly different mechanical properties that can be used to improve targeted drug uptake, according to a team of researchers at Penn State.
The NOvA collaboration has announced its first results using antineutrinos, and has seen strong evidence of muon antineutrinos oscillating into electron antineutrinos over long distances, a phenomenon that has never been unambiguously observed.
Researchers have devised a magnetic control system to make tiny DNA-based robots move on demand--;and much faster than recently possible.
Waste heat can be converted to electricity more efficiently using one-dimensional nanoscale materials as thin as an atom – ushering a new way of generating sustainable energy – thanks to new research by the University of Warwick.Led by Drs Andrij Vasylenko, Samuel Marks, Jeremy Sloan and David Quigley from Warwick’s Department of Physics, in collaboration with the Universities of Cambridge and Birmingham, the researchers have found that the most effective thermoelectric materials can be realised by shaping them into the thinnest possible nanowires.
Engineers at the University of California San Diego have developed tiny ultrasound-powered robots that can swim through blood, removing harmful bacteria along with the toxins they produce. These proof-of-concept nanorobots could one day offer a safe and efficient way to detoxify and decontaminate biological fluids.
Scientists use ion beams to write high-purity metal structures, enabling nanofabrication opportunities.
Uniform powders produced at Sandia National Laboratories don’t just look nice, they outperform commercial varieties used to kick-start chemical reactions in solar cells and could be used to produce clean-burning hydrogen fuel. Their key ingredient: detergent.
Nanoscientists at Northwestern University have developed a blueprint to fabricate new heterostructures from different types of 2-D materials, single atom layers that can be stacked together like “nano-interlocking building blocks.” Materials scientists and physicists are excited about the properties of 2-D materials and their potential applications. The researchers describe their blueprint for nanoheterostructures in the Journal of Applied Physics.
Researchers working at Berkeley Lab coupled graphene, a monolayer form of carbon, with thin layers of magnetic materials like cobalt and nickel to produce exotic behavior in electrons that could be useful for next-generation computing applications.
Carbon nanotubes are supermaterials that can be stronger than steel and more conductive than copper. They’re not in everything because these amazing properties only show up in the tiniest nanotubes, which formerly were extremely expensive.
A new experimental discovery, led by researchers at the University of Minnesota, demonstrates that the chemical element ruthenium (Ru) is the fourth single element to have unique magnetic properties at room temperature. The discovery could be used to improve sensors, devices in the computer memory and logic industry, or other devices using magnetic materials.
Chameleons are nature’s most talented masters of color. They use their unique color-changing abilities for all sorts of reasons. But how do they alter their hue? They wield a combination of pigments and specialized nano-scale crystals. In this video, Reactions explains how chameleons have mastered nanotech: https://youtu.be/OfxApSZ5bCM.
Columbia investigators have made a major breakthrough in nanophotonics research, with their invention of a novel “home-built” cryogenic near-field optical microscope that has enabled them to directly image, for the first time, the propagation and dynamics of graphene plasmons at variable temperatures down to negative 250 degrees Celsius. If researchers can harness this nanolight, they will be able to improve sensing, subwavelength waveguiding, and optical transmission of signals.
Researchers at Columbia Engineering have demonstrated, for the first time, a chip-based dual-comb spectrometer in the mid-infrared range, that requires no moving parts and can acquire spectra in less than 2 microseconds. The system, which consists of two mutually coherent, low-noise, microresonator-based frequency combs spanning 2600 nm to 4100 nm, could lead to the development of a spectroscopy lab-on-a-chip for real-time sensing on the nanosecond time scale.
Scientists added an imaging capability to Brookhaven Lab’s Center for Functional Nanomaterials that could provide the optoelectronic information needed to improve the performance of devices for power generation, communications, data storage, and lighting.
Products are available to quickly seal surface wounds, but rapidly stopping fatal internal bleeding has proven more difficult. Now, biomedical engineers at Texas A&M University are developing an injectable hydrogel bandage that could save lives in emergencies such as penetrating shrapnel wounds on the battlefield.
Physical chemist Laura Fabris—an associate professor in the Materials Science and Engineering Department at Rutgers University and principal investigator of the Fabris NanoBio Group—uses the transmission electron microscopes at Brookhaven Lab’s Center for Functional Nanomaterials (CFN) to visualize nanoparticles and understand how to optimize their morphology to improve clinical diagnoses.
The latest in space and astronomy in the Space News Source
A French nanorobotics team has assembled a new microrobotics system that pushes forward the frontiers of optical nanotechnologies. Combining several existing technologies, the µRobotex nanofactory builds microstructures in a large vacuum chamber and fixes components onto optical fiber tips with nanometer accuracy. The microhouse construction, reported in the Journal of Vacuum Science and Technology A, demonstrates how researchers can advance optical sensing technologies when they manipulate ion guns, electron beams and finely controlled robotic piloting.
This vision of simplifying disease diagnosis using topically-applied nanotechnology could change the way skin diseases such as abnormal scars are diagnosed and managed.
In exploring the optical properties of the Madagascar comet moth’s cocoon fibers, Columbia Engineering team discovers the fibers’ exceptional capabilities to reflect sunlight and to transmit optical signals and images, and develops methods to spin artificial fibers mimicking the natural fibers’ nanostructures and optical properties
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