Articles tagged with Surface Structure
Researchers create large molecular rings that self-assemble into a sheet-like structure on surfaces, allowing for adjustable mesh size and attachment of bulky molecules. This technology has the potential to enable novel catalysts and measure nanomechanical properties of proteins.
Researchers at Durham University have developed a sugar-containing polymer coating that can repair damaged artificial joint implants by mimicking the way cartilage works to lubricate human joints. The coating uses water to create a slippery surface, protecting the surfaces from wear and tear.
Researchers from Peking University developed a new technique using 4D-EELS to measure phonon modes at heterointerfaces, directly observing localized phonon modes for the first time. This breakthrough enables better understanding and control of solid interfaces' properties.
Researchers at TU Wien discovered that a rhodium catalyst can be highly chemically active in some regions while completely inactive in others. The team found that the arrangement of atoms on the surface differs from grain to grain, leading to varying catalytic properties.
Scientists confirm existence of sigma-hole, a phenomenon previously predicted but never directly observed. This breakthrough enables understanding of interactions between individual atoms or molecules, facilitating refinement of material and structural properties.
Researchers at University of Missouri and University of Chicago develop an artificial material that can respond to its environment, make decisions, and perform actions not directed by humans. The material uses a computer chip to control information processing and convert energy into mechanical energy.
Researchers at KAUST have developed a new approach to coral restoration using 3D printing, which accelerates coral growth and reef recovery. The method uses eco-friendly calcium carbonate ink and attaches coral microfragments to the printed skeleton, providing corals with a head start.
Researchers review strategies to enhance Cu-based catalysts' performance in CO2 reduction, including surface structure tuning and local environment regulation. The study aims to overcome current challenges and outline future opportunities for efficient CO2 conversion.
The discovery suggests a long-term presence of a water vapor atmosphere only in Europa's trailing hemisphere. This finding advances our understanding of the atmospheres of icy moons and paves the way for future studies of Europa by probes like NASA's Europa Clipper mission.
La Trobe University researchers developed a smart microscope slide that can detect cancer cells using enhanced color contrast. The technology uses nanoscale modifications to distinguish cancer cells from normal tissue, making early diagnosis more efficient.
Researchers developed a WC-20CrC-7Ni coating with high anti-cavitation resistance, extending the life of aquatic environment mechanisms. The coating's fine structure increases surface area, requiring more energy for crack formation. This innovation can protect critical equipment parts in power engineering, metallurgy, and shipbuilding.
Researchers at City University of Hong Kong discovered a way to steer the spreading direction of liquids on a surface inspired by the Araucaria leaf. By adjusting the surface tension, they can control the liquid flow direction, with implications for fluidics design and heat transfer enhancement.
Researchers have solved the mystery of chlorine's role in perovskite solar cells by imaging atoms at the surface. The team found that chlorine is incorporated into the material through grain boundaries, increasing stability and efficiency. An optimal concentration of chlorine was discovered to deliver high stability.
Researchers found that saliva protein adsorption is influenced by biomaterial surface properties, countering previous studies. The study lays groundwork for improving medical and dental implants' success by controlling the adsorption of proteins from blood plasma.
Researchers at the University of Konstanz have discovered that MXenes can be switched repeatedly between a flat and a rippled shape by applying femtosecond laser pulses. This discovery could lead to improved energy storage capacity, enhanced catalytic or antibiotic activity, and new applications in sensing and active plasmonic devices.
Scientists created a new approach to anchoring individual iridium atoms on the surface of a catalytic particle, increasing its efficiency in splitting water molecules to record levels. This breakthrough could ease the bottleneck for sustainable energy production by enabling more efficient electrolysis.
A team of scientists at McGill University has invented a smart device for personalized skin care inspired by the male diving beetle. The device collects and monitors body fluids while sticking to the skin's surface, paving the way for more accurate diagnostics and treatment for skin diseases like acne.
Researchers at GIST develop a non-contact, nondestructive approach to characterize crystal structures in thin films, shedding light on surface symmetries in SrRuO3. The technique offers a platform for structural characterization of surfaces and interfaces using optical techniques.
The Dragonfly mission will investigate Titan's surface and atmosphere, searching for chemical biosignatures and exploring the moon's active methane cycle. By analyzing the prebiotic chemistry currently taking place in Titan's atmosphere and on its surface, scientists hope to gain insights into the potential for life on the moon.
Researchers discovered that certain catalyst materials, such as erythrite, improve in performance over time due to restructuring. This process increases the surface area of the material, allowing for more reactions to occur, resulting in higher oxygen yields and doubled electrical current generation.
Researchers at Skoltech have discovered structures called apical bulkheads in liver cells that are responsible for the narrow shape of bile canaliculi. The discovery reveals a key role for the Rab35 protein in regulating hepatocyte lumina formation and suggests potential avenues for medical applications in fatty liver disease and fibrosis
A team of Lehigh University researchers is studying a promising alternative catalytic process based on solid acid catalysts for ethylene dimerization. Using in situ and operando molecular spectroscopy, they aim to understand the surface structures of the catalyst and design more active catalysts with reduced environmental impact.
Researchers have developed a new approach to create stable and ordered single molecule layers on silicon surfaces through self-assembly. They use N-heterocyclic carbenes, which can form strong covalent bonds with silicon while maintaining mobility to arrange into regular molecular structures.
Researchers discovered that Ganoderic acid can increase the radiosensitivity of cancer cells, making them more susceptible to radiation therapy. This breakthrough provides new hope for cancer treatment and could lead to improved patient outcomes.
Researchers develop an iron-based catalyst that rapidly removes sulfadiazine antibiotic residues from water by activating H2O2 to generate free radicals. The catalyst shows high efficiency and stability, making it a potential solution for tackling micro-pollutants in water.
KAIST researchers have developed a deep learning approach to accurately determine the 3D surface atomic structure of nanoparticles. The method enhances precision by nearly 70% and improves surface atom identification, enabling the study of catalytic properties at the atomic scale.
Thirteen researchers from Ulsan National Institute of Science and Technology (UNIST) have been selected for the 2021 Sejong Science Fellowship, a program aimed at supporting postdoctoral researchers. The fellowship provides financial support to promote their work, helping them make substantial contributions to their field.
Researchers at Bielefeld University have successfully arranged individual metal atoms on an insulator surface at room temperature. The ordered structure is created because the molybdenum acetate molecules align precisely with the charge distribution on the calcite surface, firmly anchoring them in place.
Researchers at Princeton University discovered Weyl nodes in bulk CoS2, enabling predictions about its surface properties. The material hosts Fermi-arc surface states, which may enable exotic phenomena and places it among materials candidates for use in spintronic devices.
A study found that moderate temperature increases break down SARS-Cov-2 virus-like particles on surfaces, while humidity has little impact. This degradation suggests a potential surge in COVID-19 infections during winter months.
Researchers provide a 4D image of an active linkage zone between two major faults, offering insights into fault behavior and implications for seismic hazard assessment. The study highlights the importance of reevaluating 'silent' seismogenic sources in assessing earthquake risk.
A team of scientists developed a soft, 3D silicone surface that replicates the topography and wettability of a real human tongue. The biomimetic surface demonstrated similar frictional properties to an actual human tongue, making it suitable for studying mechanical interactions with food, liquids, and medicines.
Researchers discovered that goby fins possess fingertip-like touch sensitivity, allowing fish to detect surface details. The study reveals that the fish's fins are capable of encoding texture patterns, mirroring human primate finger pads.
Scientists at the University of Tokyo have created a new method for printing organic transistors, which could lead to the development of new display technologies and wearable electronic products. The breakthrough uses a lyophobic surface and a special U-shaped metal-film pattern to create uniformly grown semiconductor films.
Scientists create a method to manipulate metal surfaces using N-heterocyclic carbenes, which cooperate to rearrange the structure atom by atom, mimicking a zipper mechanism.
A team of mathematicians from TU Wien has developed a technique to calculate flat grids that can be unfolded into desired three-dimensional shapes. The method uses findings in differential geometry and has been successfully tested in practice, resulting in stable and structurally sound 3D structures with good static properties.
A new data synthesis finds that nearly 3000 volcanoes have erupted over the last 2.6 million years, many associated with subsurface signatures of currently active magma within the shallow crust. The research reveals new details about the complex and time-evolving patterns of rising magma in the region.
Computer simulations revealed that Venus' coronae topography depends on crust thickness and magma activity, classifying over 100 large coronae into active and inactive groups. The 'Ring of Fire' in Venus' southern hemisphere is a zone expelling high levels of rising plume material.
Researchers at Saarland University have developed microlandscaped abrasive tools with structured surfaces made from cemented carbides, enabling precise grinding results. The tools are created using laser surface texturing and can be replicated in large numbers using electrochemical machining.
Researchers found that extreme rainfall events from STCs can occur over inland areas far from coastlines due to amplification of local terrain and large-scale forcing. The study suggests further investigation into asymmetrical distribution of STP, differences between STP and landfalling precipitation, and comparisons with other datasets.
Dresden scientists have created a periodic surface structure that repels water and ice, while also removing dirt particles solely by rolling water drops. This technology has potential applications in the automotive, food, and home appliance industries.
The research team created A4 paper-sized single-crystal metal foils with various surface structures by seeded annealing. They found that the surface energy of Cu foils can be tuned to produce desired surface types, enabling scalable synthesis of large transition metal single crystal foils.
Researchers found that miniature kirigami-based devices can be repeatedly compressed without damage, even with defects. This discovery has implications for the longevity of wearable electronics and other technologies incorporating such devices.
A Korean research team has developed a high-performance cathode material for lithium-ion batteries by stabilizing the surface of over-lithiated layered oxides (OLO) using salmon DNA. The study improved catalyst performance and lifespan through integrated advanced analytical techniques.
A new study reveals that cicada wings are coated in a stew of hydrocarbons, fatty acids, and oxygen-containing molecules, which contribute to their ability to repel water and kill microbes. The ratio of surface chemicals differs between two cicada species, and altering the surface chemicals changes the nanopillar structure.
Researchers at Northwestern University discovered a new way to reduce frost formation on any surface using a leaf-inspired design. The study found that the optimized surface structure reduces frost by up to 60% and can be defrosted with considerably less energy.
Researchers found a stable liquid-gas interface on the Salvinia leaf, enabling drag reduction and anti-corrosion properties. Biomimetic artificial surfaces replicated this effect using 3D printing technology.
A study reveals that the unique architecture of the lip of the suction disc, featuring vertically oriented collagen fibers, provides elasticity for maximizing contact with substrates and maintains adhesive force. The discovery could lead to improved biomimetic suckers with enhanced functionality.
Scientists discovered that all materials develop identical statistical properties when exposed to mechanical deformation, leading to self-affine surface roughness. This finding explains the observed universality of surface roughness across different scales and materials.
A study by UNIGE and CY Cergy Paris University reveals that our memory organises experiences based on structural features, rather than superficial similarities. This finding has significant implications for education, highlighting the need to focus on conceptual aspects of situations to help pupils make use of relevant features.
Researchers used persistent homology and molecular dynamics simulations to study water molecules on graphene surfaces. They found that water molecules form stable polygonal shapes, which evolve into 3D tetrahedral structures after three layers are added. This discovery provides insights into the transition between surface and free water.
Scientists at the University of Rochester develop a new material that selectively absorbs light only at solar wavelengths, increasing efficiency by 130%. This innovation enhances solar power generation and has potential applications for thermal energy harvesting devices.
Researchers at Iowa State University have created liquid metal alloys that can change their surface structure in response to heat, allowing for the development of 'smart' alloy systems. This technology could inspire design of tunable surface patterns and their composition with temperature for applications such as sensing and catalysis.
Scientists develop a waterproof metal structure, repelled by water after being submerged for long periods, thanks to femtosecond laser patterns mimicking spiders' diving bell webs and fire ants' air-trapping abilities. The unique etching technique traps air within the structure, preserving its buoyancy even when damaged.
Scientists find that the arrangement of water molecules on surfaces is crucial in determining ice formation. By understanding this relationship, researchers can design surfaces to promote or inhibit ice formation, leading to advancements in weather prediction and material development.
Researchers developed a direct method to etch-embed cerium (Ce) onto copper-based oxide surfaces, resulting in highly interactive surface structures with synergistic effects. The obtained catalysts exhibited attractive catalytic performance even in the presence of SO2.
Researchers at University of Cologne and Bonn developed a method to visualize fine surface structures using gold-coated samples in computer tomography. This technique allows for detailed analysis of organisms with previously invisible features, with applications in biology, taxonomy, and education.
Computer scientists at Columbia University developed VisiBlends, a platform that combines human steps with AI to create visually blended images. The system enabled novice designers to produce 10 times as many creative results as unguided brainstorming sessions.
Researchers have isolated single H2O molecules using cryogenic ion spectroscopy and observed individual frequencies of related OH groups. The vibrational frequencies demonstrate site-dependent behavior and reveal that bound OH companions account for lower energy bands in the spectrum.
A research group has identified the gene responsible for the formation of nanopores in fruit flies, allowing them to detect chemicals in the air. The gore-tex gene plays a crucial role in envelope curvature and odor receptivity, essential functions for insects.