Feature Channels: Nanotechnology

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Argonne researchers used ultrafast electron microscopy to study a nanoscale phenomenon that occurs in less than a few hundred quadrillionths of a second. Insights from the study could aid in the development of new sensors and quantum devices.

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Many products release molecules that drift through the air. Some can potentially cause health problems. Researchers now report a personal air-sampling system that can detect an unprecedented range of these compounds from a special badge or pen. They will present their results at ACS Fall 2021.

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Carbon dioxide dissolves in oceans, lakes and ponds, forming bicarbonate ions that can reenter the atmosphere as carbon dioxide later. Now, researchers have developed tiny “nanojars” that split bicarbonate into carbonate and capture it. They will present their results at ACS Fall 2021.

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In modern optoelectronic devices, performance depends in part on the movement of excitons. Researchers have now created a new perovskite nanocrystal system and taken direct visualizations of the movement of an exciton from crystal to crystal over a record 200 nanometers, much longer than the previous record. This paves the way for new commercial application.

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Using X-rays to study batteries and electronics at nanometer scales requires extremely high resolution. Argonne scientists led an effort to build a new instrument and devise a new algorithm to greatly improve the resolution for nanotomography.

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Expert Q&A: Do breakthrough cases mean we will soon need COVID boosters? The extremely contagious Delta variant continues to spread, prompting mask mandates, proof of vaccination, and other measures. Media invited to ask the experts about these and related topics.

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They’re roughly the same size as a coronavirus particle, and 1000 times smaller than a human hair, yet newly engineered nanoparticles developed by scientists at the University of South Australia, are punching well above their weight when it comes to treating drug-resistant fungal infections.

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Katie Sautter, a postdoctoral scientist at Argonne National Laboratory, is building new, exquisite, atomically engineered materials that will be used for quantum communication. Her work is part of Q-NEXT, a DOE National Quantum Information Science Research Center.

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Scientists have developed a technique called plasmon engineering to create nanomaterials with near-atomic scale control of patterning in silicon. This new research used a specific plasmon engineering method, aberration-corrected electron beam lithography, to control the optical and electronic properties of silicon. This approach could one day be applied to industrial applications.

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Cornell researchers have identified a new way to measure DNA torsional stiffness – how much resistance the helix offers when twisted – information that can potentially shed light on how cells work.

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A University of Miami Miller School of Medicine biochemistry researcher has found that a nanoparticle drug delivery system can reduce HIV/AIDS viral reservoirs in the brain that normally contribute to neurological problems.

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Scientists have learned how to place crystalline defects in new materials with atomic-scale precision. This enables materials that can control excitons—energy carriers similar to subatomic particles. New research reveals how to create local energy wells that “capture” the excitons. This small but important step could lead to smaller, more efficient components for optical telecommunications.

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Researchers from UCLA and Cedars-Sinai have developed a new way to detect a potentially life-threatening condition that can occur during pregnancy. The condition, placenta accreta spectrum disorder, occurs when the placenta grows too deeply into the uterine wall and fails to detach from the uterus after childbirth. It can lead to significant blood loss during pregnancy and delivery, requiring blood transfusions and intensive care, and it can result in serious illness and infection and can even be fatal for the mother. The condition occurs in less than 0.5% of pregnancies.

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Story tips: Sensing oil leaks, 3D prints in space, more fuel from ethanol, Arctic modeling boost, making isotopes faster and nano-enabled microscopy

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Using DNA-based assembly, the Center for Functional Nanomaterials postdoc has assembled functional proteins into ordered lattices and coated nanostructures for drug delivery.

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A novel method of characterizing the structural and chemical evolution of silicon and a thin layer that governs battery stability may enable better, cheaper batteries.

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In silicon-wire lithium-ion batteries, electrolytes carve away the silicon, blocking electron pathways and greatly diminishing the charging capacity of these promising devices.

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Dr. K. Bao Vang-Dings, a nanotechnology researcher at the University of Arkansas at Little Rock, has been named one of nine 2021-22 Public Policy Fellows by the American Association of Immunologists. Additionally, the Arkansas IDeA Network of Biomedical Research Excellence (INBRE) has awarded her a 2021 Summer Research Grant to support Vang-Dings’ cancer vaccine research.

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Scientists at Brookhaven and Lawrence Berkeley National Laboratories have been developing an automated experimental setup of data collection, analysis, and decision making.

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Supported by his Early Career Research Program Award, University of Wisconsin – Madison professor Michael S. Arnold found new ways to make graphene nanostructures with smooth edges. This technology will enable next-generation energy and electronics applications.

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Researchers have demonstrated a low-cost technique for retrieving nanowires from electronic devices that have reached the end of their utility and then using those nanowires in new devices. The work is a step toward more sustainable electronics.

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UC San Diego engineers developed a soft, stretchy ultrasound patch that can be worn on the skin to monitor blood flow through vessels deep inside the body. Such a device can make it easier to detect cardiovascular problems, like blockages in the arteries that could lead to strokes or heart attacks.

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Researchers at Cornell have developed nanostructures that enable record-breaking conversion of laser pulses into high-harmonic generation, paving the way for new scientific tools for high-resolution imaging.

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.An international team of researchers led by Georgia Tech is combining soft scalp electronics and virtual reality in a brain-interface system, recently published in Advanced Science.

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Srikanth Singamaneni and Barani Raman in the McKelvey School of Engineering developed technology to use nanoparticles to heat, manipulate cells in the brain and heart.

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One of the leading thinkers in nano-science has called on the energy materials community to help finally put an end to the world's reliance on fossil fuels.

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Scientists at Berkeley Lab and UC Berkeley have created an ultrathin magnet that operates at room temperature. The ultrathin magnet could lead to new applications in computing and electronics – such as spintronic memory devices – and new tools for the study of quantum physics.

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Using a D-Wave quantum-annealing computer as a testbed, scientists at Los Alamos National Laboratory have shown that it is possible to isolate so-called emergent magnetic monopoles, a class of quasiparticles, creating a new approach to developing “materials by design.”

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Researchers at Stanford and Berkeley Lab’s Molecular Foundry have developed virus-killing molecules called peptoids. The technology could make possible an emerging category of antiviral drugs that could treat everything from herpes and COVID-19 to the common cold.

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Scientists have devised a means of achieving improved information processing with a new technology for effective gate operation. This technology has applications in classical electronics as well as quantum computing, communications and sensing.

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A new wearable device turns the touch of a finger into a source of power for small electronics and sensors. Engineers at the University of California San Diego developed a thin, flexible strip that can be worn on a fingertip and generate small amounts of electricity when a person’s finger sweats or presses on it. What’s special about this sweat-fueled device is that it generates power even while the wearer is asleep or sitting still.

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Chula researchers celebrate the success of Active Targeting, a revolutionary innovation in the medical industry using bio–robots to deliver targeted cordyceps extract to halt cancer with reduced side effects.

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Imagine sitting out in the sun, reading a digital screen as thin as paper, but seeing the same image quality as if you were indoors.

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Jason Kahn, a staff scientist at the Center for Functional Nanomaterials (CFN), is conducting research in DNA-based assembly and building a one-of-a-kind automated platform to explore self-assembly processes.