An engineer at Washington University in St. Louis has taken steps toward using nanocrystal networks for artificial intelligence applications.
The lab of Uli Wiesner at Cornell University, has joined scientists pursuing the structure, and atom arrangement of quasicrystals.
With their remarkable electrical and optical properties, along with biocompatibility, photostability and chemical stability, gold nanoclusters are gaining a foothold in a number of research areas, particularly in biosensing and biolabeling. An international research team has now shown that the fluorescence is an intrinsic property of the gold nanoparticles themselves. The researchers used Au20, gold nanoparticles with a tetrahedral structure. Their findings were reported this week in The Journal of Chemical Physics.
Nanoengineers at the University of California San Diego have demonstrated for the first time using micromotors to treat a bacterial infection in the stomach. These tiny vehicles, each about half the width of a human hair, swim rapidly throughout the stomach while neutralizing gastric acid and then release their cargo of antibiotics at the desired pH.
Northwestern University’s Chad A. Mirkin and Monica Olvera de la Cruz have received significant five-year grants from the Sherman Fairchild Foundation in support of their innovative materials science research.
Solar panels have tremendous potential to provide affordable renewable energy, but many people see traditional black and blue panels as an eyesore. Architects, homeowners and city planners may be more open to the technology if they could install colorful, efficient solar panels, and a new study, published this week in Applied Physics Letters, brings us one step closer. Researchers have developed a method for imprinting existing solar panels with silicon nanopatterns that scatter green light back toward an observer.
Columbia researchers published a study today in Nature Nanotechnology that is the first to reproducibly demonstrate current blockade—the ability to switch a device from the insulating to the conducting state where charge is added and removed one electron at a time—using atomically precise molecular clusters at room temperature. The study shows that single molecules can function as reproducible circuit elements such as transistors or diodes that can easily operate at room temperature.
Currently, testing for Zika requires that a blood sample be refrigerated and shipped to a medical center or laboratory, delaying diagnosis and possible treatment. Now, Washington University in St. Louis researchers have developed a test that quickly can detect the presence of Zika virus in blood. Although the new proof-of-concept technology has yet to be produced for use in medical situations, test results can be determined in minutes, and the materials do not require refrigeration.
This is a continuing profile series on the directors of the Department of Energy (DOE) Office of Science User Facilities. These scientists lead a variety of research institutions that provide researchers with the most advanced tools of modern science including accelerators, colliders, supercomputers, light sources and neutron sources, as well as facilities for studying the nano world, the environment, and the atmosphere.
A team of engineers at Washington University in St. Louis has made major strides recently in the study and manipulation of light. The team's most recent discovery of the sensing capability of microresonators could have impacts in the creation of biomedical devices, electronics and biohazard detection devices.
Researchers in Georgia State University’s Institute for Biomedical Sciences have received a four-year, $1.4 million federal grant to study novel therapeutic approaches for the treatment of intestinal inflammation.
An interdisciplinary team of Northwestern University researchers has used mathematics and machine learning to design an optimal material for light management in solar cells and then fabricated the nanostructured surfaces simultaneously with a new nanomanufacturing technique. The researchers fabricated 3-D photonic nanostructures on a silicon wafer for potential use as a solar cell. The resulting inexpensive material absorbed 160 percent more light in the 800- to 1,200-nanometer wavelength -- a range in which current solar cells are inefficient -- than other designs.
A team of researchers from ORNL and Colorado State University developed a U-tube gas flow cell to study catalysts and better understand how facilitate chemical reactions. With this cell integrated into a new sample environment, they can combine neutron diffraction and isotope analysis techniques to view catalytic behavior under realistic operating conditions.
Lightweight composite material for energy storage in flexible electronics, electric vehicles and aerospace applications has been experimentally shown to store energy at operating temperatures well above current commercial polymers.
Some of the world’s tiniest crystals are known as “artificial atoms” because they can organize themselves into structures that look like molecules, including “superlattices” that are potential building blocks for novel materials. Now scientists from the Department of Energy’s SLAC National Accelerator Laboratory and Stanford University have made the first observation of these nanocrystals rapidly forming superlattices while they are themselves still growing.
A research team led by Adam Friedman, MD, associate professor of dermatology at the GW School of Medicine and Health Sciences, has found that topically applied nitric oxide-releasing nanoparticles are a viable treatment for deep fungal infections of the skin caused by dermatophytes.
The human brain's computational might in a machine, the dream of computer engineers, comes a step closer thanks to new nanomaterials. Georgia Tech researchers are creating next-gen neuron-mimmicking "memristors" to underly processing "neuristors."
Scientists at the University of Chicago and Argonne National Laboratory have discovered a new way to precisely pattern nanomaterials that could open a new path to the next generation of everyday electronic devices.
In new research, Alex Green, a professor at ASU’s Biodesign Institute, demonstrates how living cells can be induced to carry out computations in the manner of tiny robots or computers.
Two-dimensional materials that can multitask. That is the result of a new process that naturally produces patterned monolayers that can act as a base for creating a wide variety of novel materials with dual optical, magnetic, catalytic or sensing capabilities.
Engineers at the University of Maryland have invented an entirely new kind of battery. It is bio-compatible, because it produces the same kind of electrical energy that the body uses: an ion current.
A research team led by Professor Adekunle Adeyeye from the Department of Electrical and Computer Engineering at the NUS Faculty of Engineering, has recently achieved a significant breakthrough in spin wave information processing technology. His team has successfully developed a novel method for the simultaneous propagation of spin wave signals in multiple directions at the same frequency, without the need for any external magnetic field.
It lives in boiling acid that dissolves flesh and bone. Now scientists have unlocked the secrets of the indestructible virus, potentially allowing them to harness its remarkable properties to create super-durable materials and better treat disease.
Ten new reviews and original research reports that illustrate how the progression of research assays from qualitative outputs toward increasingly sensitive quantitative outputs is transforming life sciences and biomedical research and diagnostics by improving the ability of researchers and clinicians to detect and quantify increasingly complex assays.
Skyrmions are a kind of nanomagnet, comprised of a spin-correlated ensemble of electrons acting as a topological magnet on certain microscopic surfaces. The precise properties, like spin orientation, of such nanomagnets can store information. But how might you go about moving or manipulating these nanomagnets at will to store the data you want? New research demonstrates such read/write ability using bursts of electrons, encoding topological energy structures robustly enough for potential data storage applications. The researchers report their work this week in Applied Physics Letters.
Brandon Sweeney and his advisor Dr. Micah Green discovered a way to make 3-D printed parts stronger and immediately useful in real-world applications. Sweeney and Green applied the traditional welding concepts to bond the submillimeter layers in a 3-D printed part together, while in a microwave.
Scientists may be able to use self-assembly to design new materials with custom characteristics. Understanding self-assembly is particularly important for working with nanoparticles. Scientists supported by the Department of Energy are investigating two major methods of self-assembly. They are looking into both particles that assemble on their own as well as “nano-Velcro” that can pull together particles that wouldn’t otherwise connect on their own.
For the first time, scientists have trapped a noble gas in a two-dimensional porous structure at room temperature. This achievement will enable detailed studies of individual gas atoms in confinement—research that could inform the design of new materials for gas separation and nuclear waste remediation.
In a new study, researchers at the University of Minnesota and the Smithsonian Conservation Biology Institute (SCBI) provide the first-ever reproducible evidence for the successful cryopreservation of zebrafish embryos. The study uses new gold nanotechnology and lasers to warm the embryo—the stumbling block in previous studies. The results have profound implications for human health, wildlife conservation, and aquaculture.
Working with Parker Hannifin, Sandia National Laboratories combined basic research on an interesting form of carbon with a unique microsensor to make an easy-to-use, table-top tool that quickly and cheaply detects disinfection byproducts in our drinking water before it reaches consumers.
In a nanoscale photodetector that combines a unique fabrication method and light-trapping structures, a team of engineers from the University of Wisconsin–Madison and the University at Buffalo has overcome obstacles to increasing performance for optoelectronic devices — like camera sensors or solar cells — without adding bulk.
Researchers have demonstrated shape memory and self-healing in gold microparticles. It could one day lead to self-repairing micro- and nano-robots; mechanically stable, damage-tolerant devices; and targeted drug delivery.
Researchers from Virginia Tech and the University of Pittsburgh have collaborated to employ a novel nanoscale fibrous system that can measure the tiny forces exerted by and upon individual cells with extreme precision. The team hopes that this platform, which investigators call nanonet force microscopy (NFM), will provide new knowledge about smooth muscle cell biology that could have implications for treating cardiovascular disease, which is still a leading cause of death in the United States.
Using nanotechnology, image processing tools and statistical analysis, Technion researchers have developed a system that enables faster diagnostics, earlier and more effective treatment of infectious bacteria, and improved patient recovery times.
Northwestern University’s Chad A. Mirkin, the George B. Rathmann Professor of Chemistry at the Weinberg College of Arts and Sciences, has been named a 2017 American Chemical Society (ACS) Fellow, adding to his list of more than 100 national and international awards.
Nicole F. Steinmetz, PhD, director of the Center for Bio-Nanotechnology at Case Western Reserve School of Medicine, has received two major grants from the National Institutes of Health to develop microscopic drug-delivery systems for patients living with breast cancer, and patients at risk for serious blood clots.
Applications include information or devices that could be implanted in humans and destroyed by applying ice.
Your cancer has metastasized. No one wants to ever hear that. Now researchers have found a way to virtually halt cell migration, a key component in metastasis, in vitro, in human cells. In past in vivo studies in mice, treated cancer did not appear to recur. No significant side effects were observed.
New research by Berkeley Lab scientists could help usher in a new generation of high-definition displays, optoelectronic devices, photodetectors, and more. They have shown that a class of “soft” semiconductors can be used to emit multiple, bright colors from a single nanowire at resolutions as small as 500 nanometers. The work could challenge quantum dot displays that rely upon traditional semiconductor nanocrystals to emit light.
University of Notre Dame researchers have developed a novel platform to more accurately detect and identify the presence and severity of peanut allergies, without directly exposing patients to the allergen.
In the journal Nature Nanotechnology, University of North Carolina Lineberger Comprehensive Cancer Center researchers report on strides made in the development of a strategy to improve the immune system's detection of cancer proteins by using “sticky” nanoparticles.
There hasn’t been a gold standard for how orthopaedic spine surgeons promote new bone growth in patients, but now Northwestern University scientists have designed a bioactive nanomaterial that is so good at stimulating bone regeneration it could become the method surgeons prefer.
Javier Vela, scientist at the U.S. Department of Energy’s Ames Laboratory, believes improvements in computer processors, TV displays and solar cells will come from scientific advancements in the synthesis of low-dimensional nanomaterials.
Scientists at the University of Vienna have created a new hybrid structure, termed buckyball sandwich, by encapsulating a single layer of fullerene molecules between two graphene sheets. Buckyball sandwiches combine for the first time soccerball-like fullerenes, each consisting of sixty carbon atoms, and graphene, a one-atom thick layer of carbon. This structure allows the scientist to study the dynamics of the trapped molecules down to atomic resolution using scanning transmission electron microscopy. They report observing diffusion of individual molecules confined in the two-dimensional space, find evidence for the rotation of isolated fullerenes within the structure, and even follow their merging into larger molecular clusters.
Queen’s University Belfast researchers have discovered a new way to create extremely thin electrically conducting sheets, which could revolutionise the tiny electronic devices that control everything from smart phones to banking and medical technology.
Scientists devised a new synthesis route to produce a catalyst that doubles the conversion rate compared to the best previously reported catalyst.
A new device design allows ten-fold increase in spin currents, laying the path to use in computing and high-efficiency electronics.
Imagine wearing a device that continuously analyzes your sweat or blood for different types of biomarkers, such as proteins that show you may have breast cancer or lung cancer. Rutgers engineers have invented biosensor technology – known as a lab on a chip – that could be used in hand-held or wearable devices to monitor your health and exposure to dangerous bacteria, viruses and pollutants.
Heterogeneous nanostructured materials are widely used in various optoelectronic devices, including solar cells. However, the nano-interfaces contain structural defects that can affect performance. Calculations run at NERSC helped researchers ID the root cause of the defects in two materials and provide design rules to avoid them.
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