Articles tagged with Surface Structure
Chromosomes' characteristic shape is explained by self-organizing supramolecular structures formed by stacked layers of chromatin. The symmetry breaking due to different surface energies in telomeres and lateral surfaces justifies the elongated structure.
Scientists at NIST have observed that patterning one surface with nanoscale structures increases or decreases the Casimir effect, which is necessary for making small mechanical parts and studying gravity at the microscale. The discovery challenges existing theory and opens a new path for tuning these effects.
Researchers studied how each state forms, including wrinkle, crease, and fold states. The findings help engineers control the formation of these structures for flexible electronic devices or variable adhesion surfaces.
Researchers at the University of Copenhagen have discovered a new way cells communicate with each other using antennae-like structures called primary cilia. This breakthrough sheds light on the causes of debilitating diseases such as heart defects and birth defects, highlighting the importance of TGFβ signalling in fetal development.
Researchers at University of Michigan developed a nanoscale coating that repels over 95% of liquids, including oils, alcohols, and toxic acids. The coating uses air pockets to reduce intermolecular forces, causing liquids to bounce off the surface.
A new study reveals that cilia play a dynamic role in guiding neuronal migration during brain development. In mice with deleted Arl13b gene, interneurons fail to migrate properly due to abnormal cilia function.
The new nanoflower structures have a huge surface area in a small space, increasing the capacity of lithium-ion batteries and supercapacitors. GeS is an attractive material for solar cells due to its ability to absorb solar energy and convert it into usable power.
Cold atmospheric gas plasma technology has shown promise in inactivating Salmonella on fresh produce, but exposure length varies greatly depending on the type of produce. Researchers discovered that food surfaces' microscopic structures can block plasma from reaching bacteria, affecting treatment efficacy.
Scientists at Argonne National Laboratory have developed a new X-ray imaging technique that enables non-destructive 3D visualization of material surfaces. This breakthrough expands the range of X-ray research possible for biology, nanotechnology, and photonics.
The new process creates wrinkled surfaces with precise sizes and patterns, useful for microfluidic systems, sensing and diagnostics, photonic devices, and more. The system produces deterministic two-dimensional patterns of wrinkles without masks or complex printing processes.
Researchers studied the water boatman's hind wings, which exhibit superhydrophobicity, playing a crucial role in its swimming, breathing, and balance. The study reveals that the insect's wing surface contains low surface energy materials, creating a hierarchical structure that enables it to swim freely and escape easily from water.
Scientists create a surface that can display information using water, exploiting the unique behavior of trapped air layers on a lotus-inspired dual-structured surface. The surface is bistable and exhibits striking optical contrast between its two states.
The new Iowa River bridge features over 100 gauges that take 100 readings a second, providing quantitative information on the bridge's performance and condition. The system also monitors security and surveillance video, with data displayed in real-time on a website.
A team of MIT researchers has developed a new approach to solar energy by creating 3D configurations of solar photovoltaic cells. Their results show that these structures can increase power output ranging from double to more than 20 times that of traditional flat panels, with the biggest boosts seen in locations far from the equator, i...
Researchers have resolved a long-standing debate over water molecules at the air-water interface, finding strong hydrogen bonding between water pairs at the outermost surface. The study uses theoretical and experimental techniques to pinpoint the origin of water's unique surface properties.
Researchers develop new X-ray technique HARPES to study electronic structures below material surfaces, enabling better performance in nanoscale devices. The technique uses hard x-rays to probe deeper into materials than current ARPES methods.
Researchers at Forschungszentrum Jülich and universities of Kiel and Hamburg discovered a regular lattice of stable magnetic skyrmions on a surface, opening up new possibilities for data storage. The tiny formations, made up of just 15 atoms, exist without an external magnetic field and are located on the surface.
A new type of sensor, called 'sensing skin,' can monitor the health of concrete infrastructure continually and inexpensively. The sensor detects cracks by measuring changes in capacitance, allowing for precise location detection within 24 hours.
Researchers at the University of Nottingham have successfully built 3-D molecular structures on surfaces using a self-assembly process. This breakthrough could lead to the development of cutting-edge optical and electronic technologies, as well as molecular computers.
Researchers at Berkeley Lab found that high-pressure conditions can create nanoclusters of platinum, which may be more stable than single crystals. This discovery has implications for the future use of platinum in fuel cells and could potentially reduce costs.
Researchers at Northwestern University and Oxford University have developed a new method to understand surface layers of atoms, critical for material properties. The bond-valence-sum method has shown how to arrange atoms on surfaces, enabling predictions of material behavior.
Scientists at the University of Nebraska-Lincoln and RIKEN institute developed a computer simulation to design nanostructured surfaces with superhydrophobic properties. This technology can help create self-cleaning materials and water-striding robots, which are inspired by nature's ability to repel water.
The study reveals that the hydrophobicity of NOCTUIDAE moth wings is induced by the multivariate coupling of shape, structure, and biomaterials. The hierarchical rough structure on the wing surface enhances surface hydrophobicity, allowing it to repel rainwater, dew, and dust.
Researchers developed a surface treatment that increases light absorption by trapping light in three-dimensional structures and making the surfaces self-cleaning, allowing rain or dew to wash away dust and dirt. The treatment mimics the superhydrophobic surface of the lotus leaf, boosting photovoltaic cell efficiency by up to 2%.
Researchers at UC Riverside have designed a catalyst that allows for the production of partially hydrogenated oils while minimizing the formation of trans fats. By controlling the shape of platinum particles, they achieved higher selectivity and reduced the creation of harmful trans fats.
The study analyzed the angular rotation of gecko joints during locomotion on horizontal surfaces, revealing spatio-temporal rotation trajectories. It also compared the movement patterns of geckos on vertical walls, showing differences in joint angles and limb phases.
Penn State researchers have developed a method to rapidly and inexpensively copy biological surface structures using the conformal evaporated film by rotation (CEFR) technique. This technique enables the creation of coatings that capture the micro and nanostructure of biological surfaces, including metallic finishes and iridescent colors.
Princeton engineers have created a process that can literally melt away tiny defects on microchips, enabling precise shaping of components without increasing fabrication cost. The method, called Self-Perfection by Liquefaction (SPEL), uses a light pulse from an excimer laser to guide the resulting flow of liquid into desired shapes.
A new technique, nano-area coherent electron diffraction, has been developed to study the atomic structure of gold and other nanocrystalline materials. The technique reveals striking differences in surface atoms' arrangement compared to bulk crystalline surfaces.
Scientists at Cardiff University developed an industrial lens with nanoscopic structures to capture more light in low-light environments. The lens has potential uses in optoelectronics, photovoltaics, fibre optics, sensors, and medical diagnostic devices.
Researchers found that alternate-day fasting shrinks fat cells and boosts fat breakdown mechanisms. Statin drugs also reduce cholesterol and fats in blood vessels by affecting lipases. Exercise after a high-fat meal stimulates the breakdown of fats in skeletal muscle, making it healthier.
UWM researchers have devised a method for creating hybrid structures by coating CNTs with aerosol nanoparticles, producing low-cost
Scientists have developed a breakthrough understanding of how individual water molecules come together to form ice crystals. This research provides unprecedented resolution and sheds light on the process of heterogeneous nucleation, essential for climate change models and cloud formation.
Georgia Tech researchers have developed a self-cleaning surface inspired by the lotus plant to improve photovoltaic arrays and micro-electromechanical systems (MEMS). The unique surface combines nano- and micron-scale structures with a waxy coating, allowing water and dirt to bead up and roll off instantly.
Johns Hopkins researchers have created an online tool to help advance the search for causes and treatment of rare illnesses, known as 'orphan diseases'. The new database consolidates knowledge on genes contributing to cilia operations in the body, shedding light on their role in various common disorders.
Researchers at UCR discovered a way molecules assemble without external guidance, forming a two-dimensional honeycomb network with big pores. The finding could help develop templates for growing complex structures on surfaces and improve paints and lubricants.
Researchers have found metal fullerene clusters, also known as hollow golden cages, composed of gold atoms. These structures are stable at room temperature and can cage smaller atoms, opening up new possibilities for influencing physical and chemical properties.
Researchers Matthias Weber, David Hoffman, and Michael Wolf discovered a genus one helicoid, a minimal surface with an extra feature: a handle. This finding has implications for understanding the properties of surfaces at the nanoscale and could lead to new applications in structures and materials science.
Researchers found the surface structure to be arranged differently than previously thought, with groups of four atoms in one direction but three in the other. This discovery could help scientists understand how to use cubic gallium nitride as a new semiconductor material.
Jeanne E. Pemberton's research reveals that changing the electrical charge on electronic paper affects how well ink sticks, enabling the development of reusable tablets. The study uses the 'emersion' method to analyze molecular interactions at the interface between liquids and solids.
Researchers found that zinc sulphide nanoparticles change their crystal structure when wet, becoming more ordered. This effect could help identify extraterrestrial rocks and has implications for sensing technology.
Nuzzo and colleague David L. Allara developed stain-repellent coatings, lubricants that cling in harsh weather, and materials for artificial hearts and protein protection. Their discovery attached molecules to gold surfaces, changing interactions with other substances.
Researchers from Penn State developed expendable microphones to locate survivors in collapsed buildings. The team found that placing microphones in voids reduces surface noise, allowing acoustic search to continue without interfering with rescue operations.
Researchers found that less than two feet of water can noticeably reduce landfall decay in hurricanes. However, surface roughness significantly reduces wind speed and evaporation, which fuels a hurricane's intensity.
Scientists have successfully pinned down water at a hydrophobic surface, revealing capillary waves that ripple against the surface. This finding may aid in understanding structure of water films near patchy hydrophilic-hydrophobic surfaces.
A University of North Carolina at Chapel Hill study found that new safety regulations adopted in 1996 contributed to a 22% decline in serious injuries at childcare centers and a 31% drop in licensed home injuries. The decline coincided with improved playground safety features and better supervision.