Articles tagged with Surface Structure
Researchers used correlated wavefunction theory to simulate the bulk hydrated electron, finding a persistent tetrahedral cavity made up of four water molecules. The model provided stronger theoretical evidence for the cavity model, dismissing non-cavity structures in stable and metastable states.
Researchers at EPFL's LSMS digitally simulated how surface roughness changes over time, capturing the entire process from initial geometry to final fractal geometry. Their findings suggest that wear debris is present for surfaces to develop self-affine roughness and could lead to significant reductions in energy consumption and costs.
Tevis Jacobs will study individual nanoparticles using electron microscopy to understand atomic-scale relationships between adhesion and coarsening. The award enables the development of new methods for measuring nanoparticle attachment and stability on surfaces.
Researchers used a high-resolution model to study mesoscale air-sea interaction, revealing its significant impact on oceanic circulation, atmospheric processes, and cloud formation. The study highlights the importance of resolving oceanic mesoscale eddies and fronts in global coupled models.
Researchers at Brigham Young University have developed a new class of mechanical devices called 'developable mechanisms' that can transform into useful functions without taking up space. These devices can be integrated into surfaces to create compact machines with complex tasks.
Researchers at VIB-KU Leuven have developed new methods for 3D microscopy, including ALMOST, which provides unprecedented imaging of reflective opaque objects. Additionally, a modernized Golgi staining technique has been optimized to study neurons in more detail, preserving ultrastructural details.
Researchers at Aalto University developed a new computational model to identify and classify atomic environments on customised carbon surfaces. This knowledge will enable the creation of tailored surfaces for biomedical applications, including real-time monitoring of patient blood levels.
Researchers developed an artificial tactile sensor that detects surface information like shapes, patterns, and structures with high accuracy. The sensor uses piezoelectric materials to mimic the properties of human skin, offering advantages over existing sensors, including detection through touch and sliding.
New NYU Abu Dhabi research suggests corals produce molecules that can help resist disease by maintaining healthy surface microbiomes. The study found unique molecules at the surface of Acropora and Platygyra corals, which may structure beneficial microbial communities and defend against parasitic bacteria.
A research team from Kiel University has developed a method to boost the adhesive effect of silicone materials by combining surface structuring with plasma treatment. They found that surfaces with a mushroom-like microstructure exhibit significantly improved adhesion, even when bent to varying degrees. This breakthrough could enable ne...
Researchers have successfully imaged the surface structures of silver nanoparticles at atomic resolution using scanning tunnelling microscopy (STM). The technique allows for the identification of individual parts of molecules on the nanoparticle's surface, providing insights into their chemical properties and molecular interactions.
A team at TU Wien has uncovered the mystery behind water molecule structures on iron oxide surfaces, revealing complex bridge-like structures that play a significant role in chemical reactions. These findings have wide-ranging implications for processes such as corrosion and catalyst function, and pave the way for further research into...
Three researchers at Argonne National Laboratory, Prasanna Balaprakash, Karen Mulfort, and Zhang Jiang, have earned the DOE's Early Career Research Program awards. They will receive funding to advance their research in machine learning, molecular interactions, and advanced materials imaging.
Researchers at Friedrich Schiller University Jena have successfully created tailored surface structures on curved carbon fibers using laser technology, enabling new applications in composite materials and optical devices. The method allows for precise control over the structure's size and shape, opening up possibilities for improving m...
Researchers mapped battery materials with atomic precision, finding that surface structure differs from interior and optimizing performance by varying lithium-to-metal ratios. The study used advanced electron microscopy techniques to analyze cathode material structures, revealing new insights into phase transformations and capacity loss.
Researchers developed a new theoretical model to explain the friction of liquid droplets on micro-structured surfaces. The study found that micro-hole surfaces exhibit higher friction than micro-pillar surfaces under the same solid fraction.
Researchers have developed a novel MOF shell-derived surface modification of Li-rich layered oxide cathode, enhancing its electrochemical performance. The LLO@C&NiCo cathode retains up to 95% capacity after 100 cycles and exhibits high rate capability.
Rice researchers successfully printed complex schwarzite structures with computer algorithms and 3-D printers, showcasing their strength, lightness, and durability. The discovery may lead to high-load-bearing components for buildings, cars, and aircraft, as well as nanoscale electronic devices and battery components.
Scientists from HKU created a novel liquid-repellent surface inspired by springtail cuticles, offering enhanced mechanical stability and low production costs. The breakthrough technology can be applied to various fields, including energy, buildings, and water vehicles.
Researchers found that spots on the surface of Zeta Puppis, a supergiant star, create large-scale spiral structures in its stellar wind. The team observed periodic signals in the star's light and wind behavior, indicating a link between surface variations and wind clumping.
Researchers prepared porous MoS2 with high specific surface area using APTES-modified SiO2 hard template and different sulfur sources. The resulting materials exhibited good performance in hydrodeoxygenation (HDO) of bio-oil, a promising route for upgrading this liquid fuel.
Researchers at NTNU have developed a novel approach to prevent ice build-up by cracking it. By adding inner pillars and holes to surfaces, they can create macro-cracks that allow ice to fall off, reducing adhesion strengths by up to 50%. This method has the potential to revolutionize anti-icing technology in various industries.
Researchers at KAIST have developed a novel fabrication technology to produce superomniphobic surfaces that can repel liquids, including water and oil. The new approach uses localized photofluidization of azobenzene molecule-containing polymers, resulting in a superior superomniphobic property.
Researchers at Technical University of Munich used a scanning tunneling microscope to analyze the surface activity of catalysts. They found that defects on the surface create ideal conditions for catalysis by attracting but not holding onto hydrogen ions.
Scientists at KAUST have found that the edge of a surface structure plays a crucial role in water-droplet formation during vapor harvesting. This discovery reveals that rough-edged structures mimicking nature can be highly effective in collecting atmospheric water vapor, potentially improving efficiency in regions with limited rainfall...
Scientists develop a phononic crystal structure that can steer and guide surface acoustic waves, or 'nanoquakes,' in devices. The breakthrough could pave the way for lab-on-a-chip biosensors and earthquake protection.
Researchers identify strategies to enhance lithium storage in 2D nanomaterials, including hybridization, surface/edge functionalization, and structural optimization. These approaches aim to improve conductivity and accommodate volume expansion during charging/discharging cycles.
Researchers at Osaka University develop new method to create submicron structures on silicon surfaces, reducing reflection and increasing infrared light capture. The approach improves power conversion efficiency of solar cells while keeping manufacturing costs low.
The EcoCity model simulates future city expansion and predicts urban heat island effects. The study reveals different surface temperatures in various function zones, with urban impervious surfaces and green spaces playing distinct roles in thermal regulation.
Researchers developed an EcoCity model to regulate urban land cover structures and thermal environments, providing fundamental data for urban heat island mitigation. The model showed that land-cover components significantly affect thermal environments in different urban functional zones.
Researchers developed a bimodal AFM approach to probe materials in three dimensions simultaneously, providing new insights into surface morphology and chemical reactions. The technique enables the measurement of forces in X, Y, and Z directions on the subatomic scale.
Using supercomputers, researchers simulate phase transformations in metal surfaces induced by lasers. This helps predict material properties for practical applications such as engineering of new metals.
Researchers at Forschungszentrum Jülich develop a method to mix molecules with opposing intermolecular interactions, creating tailored surface structures. The technique enables the controlled production of active layer systems, which are crucial for organic electronics applications.
Scientists have developed a technique to visualize the complete evolution of micro- and nanostructure formation on a material's surface. This allows for better control over these structures, which are crucial for improving various technologies such as anti-corrosive materials, energy absorbers, and medical instrumentation.
A team of researchers has achieved the first optical coherence tomography images of cubic meter volumes, offering opportunities for long-range measurements and imaging. The new technology could be used to monitor processes, take technical measurements and nondestructively evaluate materials in industrial settings.
Massive simulations reveal intrinsic disorder and dynamic surface rearrangements in certain polar surfaces, affecting mechanical, catalytic and sensor properties.
A team of Shanghai Jiao Tong University researchers developed antireflective structures capable of suppressing visible light at different angles of incidence. The structures, inspired by cicada wings, were fabricated using titanium dioxide and show great potential for photovoltaic devices like solar cells.
The sensing skin detects cracks and harmful chemicals in structures using three layers: one for crack detection, a buffer layer, and another with metal nanoparticles that respond to specific chemicals. The technology can be applied to various materials and can detect problems early on.
The Kiel research team has developed a process called nanoscale-sculpturing, which allows metals like aluminium and titanium to be permanently joined with almost any surface. This enables the creation of water-repellent surfaces and improves biocompatibility for medical implants.
Scientists have overturned traditional interpretations of the Susitna basin in Alaska, discovering that it was formed by a southwest-dipping thrust fault. This finding changes our understanding of the region's geologic evolution and the formation of iconic landmarks like Mount Susitna.
Tropical Storm Darby strengthened rapidly, with maximum sustained winds reaching 70 mph and gusts exceeding 110 kph. NASA used satellite imagery to estimate the storm's minimum central pressure at 998 millibars.
Researchers developed an electrically switchable nanomesh that alters the contact angle of a drop of liquid, enabling precise control over adhesion and stiction. This breakthrough has potential applications in biology and technology, including controlling cell movement and flow resistance in capillary pumps.
Researchers used quantum mechanics and supercomputing to study the surface structure of rutile TiO2, a promising photocatalyst. The study identified new structures and processes that can enhance its chemical reactivity.
A new mathematical framework developed by Robert Saye accurately resolves intricate fluid dynamics near evolving interfaces, allowing for the study of complex phenomena like bubble aeration and propeller blade optimization. High-order methods outperform low-order methods in accuracy and computing power.
Chinese scientists have developed a facile approach for the rapid and maskless fabrication of bio-inspired hierarchical structures using multi-beam laser interference. This technique enables the creation of large-area, low-cost, and high-volume 3D fabrication of micro and nanostructures. The method is simple and efficient compared to c...
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences designed a tunable, self-actuated 3-D material that can alter its size, volume and shape. The structure is inspired by origami techniques and can be programmed to deform specific hinges using embedded pneumatic actuators.
A team of researchers has developed a method to create a single vapor bubble in a pool of liquid that can remain stable on a surface for hours. This technique enables the microscopic study of vapor bubbles and the optimization of the boiling process, which could lead to advancements in heat transfer systems.
A recent study by Plymouth University found high levels of toxic metals in playground paints, including lead up to 40 times the recommended concentration. The research recommends regular monitoring of paint condition and stricter controls on domestic and imported paints used for playgrounds.
Researchers at Berkeley Lab solved the structure of lithium- and manganese-rich transition metal oxides using complementary microscopy and spectroscopy techniques. The study revealed that the material is defected single-phase monoclinic, ruling out two popular theories.
A new analytical method using high-resolution scanning electron microscopy (HRSEM) has resolved the unique atomic structure at the surface of a material for the first time. This breakthrough enables direct information on both surface and bulk atoms, improving understanding of critical reactions such as catalysis and corrosion.
Researchers used advanced techniques to study single molecules and protein interactions on the cell membrane. The findings revealed that lipid rafts, previously thought to move within the membrane, do not exist. Instead, proteins may be anchored at specific positions on the surface, influencing cellular processes.
A new quantum model has been used to determine the molecular structure of water's liquid surface, revealing the intrinsic asymmetry of hydrogen bonds and their role in the surface's molecular orientation. The results accurately capture the properties of liquid water and offer a promising platform for molecular exploration.
A team of scientists and art conservators used a simple light bulb, SLR camera and computational power to uncover new details of Gauguin's printmaking process. The technique allowed them to measure the surface structure of prints, revealing that white lines were on a flat surface and ink sat atop ridges in the paper.
Scientists at ETH Zurich develop a method to produce pre-structured cellulose materials with three-dimensional micro-structures, enhancing biocompatibility. This leads to reduced inflammation and rejection reactions when using artificial implants.
Researchers from MIPT use the USPEX method to predict the structure and properties of rutile's surface. This resolves existing discrepancies between empirical and theoretical data, paving the way for understanding chemical reactions on the catalyst.
Researchers discovered that aluminum atoms involved in forming oxide stripes come exclusively from the steps, not the terraces. The growing oxide stripes are confined to the flat terraces and must push the steps away as oxygen continues to grab aluminum atoms from the edges.
Microbial succession in restrooms begins with gut and vaginal bacteria, followed by skin and outdoor microbes. Skin and outdoor taxa comprise most of the cultured communities, suggesting restrooms are not significantly unhealthy or healthy.
Researchers analyzed 1,400 damage sites to determine relationships between ground deformation and faults. They found evidence of reverse movement along preexisting faults, which caused widespread ground deformation in the San Andreas fault region.
Researchers investigated the effects of TiOx interlayer thickness on resistive switching performance. The Pt/TiOx (5nm)/ZnO/n+-Si structure exhibits optimal switching characteristics, outperforming other structures.
Researchers have developed a novel X-ray technique that enables the rapid determination of atomic surface structures and live recordings of surface reactions like catalysis and corrosion. This breakthrough paves the way for designing better catalysts and materials on an atomic level.