Articles tagged with Crystal Structure
Scientists at the University of Vienna observe random diffusion of a butterfly-shaped atomic defect in graphene, revealing a random walk through the crystal. The study uses high-resolution electron microscopy to track the defect's migration over time.
Analysis reveals unusual sodium absorption pattern in the crystal, caused by different charges and magnetic moments of manganese atoms. The discovery provides a basis for tailoring the properties of these materials, potentially leading to improved battery performance.
Eumelanin, the primary pigment in human skin, hair, and eyes, has been found to absorb a broad spectrum of sunlight due to its unique physical arrangement. Researchers have identified that disorder in the material's structure plays a crucial role in its broadband blocking ability.
Scientists at Lawrence Berkeley National Laboratory have recorded the first observations of strong nonlinear optical resonances along the edges of a single layer of molybdenum disulfide. These one-dimensional edge states are key to enabling novel nanoelectronics and photonic devices.
Scientists at the University of Arizona have developed a way to control graphene's crystal structure using an electric field. This breakthrough could lead to the creation of faster and more versatile transistors, which would enable faster computing and new applications for graphene in microelectronics.
Researchers from Stanford and KAUST develop a novel method to study crystallization, allowing for unprecedented control over crystal structures. This breakthrough has far-reaching implications for flexible electronics, circuits, and pharmaceutical manufacturing.
Researchers at Aalto University have successfully developed a novel nanocrystalline cellulose that effectively inhibits alphavirus infection in cells. The compound was found to prevent viral spread in 88-100% of cases, with no negative effects on cell viability.
NTNU researchers have discovered that by tuning a small strain on single nanowires, they can become more effective in LEDs and solar cells. The discovery enables the creation of highly effective solar cells that produce a higher electric power.
Researchers attach DNA-coated building blocks to form structures, but simulations predicted defects. They found hydrodynamic effects play a critical role in the structures' formation, making some patterns more likely than others. This discovery improves our understanding of particle assemblies and has implications for various systems.
Adding an impurity to a two-dimensional lattice structure can create defects that settle into harmony, restoring order and creating a 'screen' to protect the rest of the material. This finding could lead to new ways of engineering materials with unique properties.
A combined computational and experimental study reveals arrays of gear-like molecular-scale machines that rotate in unison when pressure is applied to self-assembled silver-based superlattices. The superlattice structures form layers with hydrogen bonds acting as 'hinges' to facilitate rotation.
Researchers are exploring strain engineering to alter materials' properties, which could improve energy storage and conversion rates in devices like batteries and fuel cells. By applying and managing stresses within known materials, scientists can achieve exponential improvements in key reaction rates.
Researchers at Århus University used X-ray light to track the growth of tungsten oxide nanoparticles, which can be tailored for smart windows and solar cells. The study shows that nanoparticles form from octahedra units in solution and develop a predominantly ordered crystal structure as they grow.
The discovery of RNase L's 3D structure reveals its role in the innate immune system and provides insights into its function. The enzyme helps defend against bacteria and possibly prostate cancer and obesity.
Researchers have successfully produced artificial graphene from traditional semiconductor materials, opening up new possibilities for high-performance photovoltaic cells, lasers, LED lighting, and more. The discovery was made by a team of scientists at the University of Luxembourg and published in Physical Review X.
Researchers at the Vienna University of Technology have found that inhomogeneously charged particles can form gel-like or crystal-like structures depending on parameters. The study's results show different possible configurations, including simple hexagonal structures and less ordered gel-like structures with interconnected rings.
Researchers at ETH Zurich deciphered the structure of the large subunit of the mitochondrial ribosome, a complex enzyme that deciphers genetic code and assembles amino acids into proteins. The study's success relies on a combination of high-resolution cryo-electron microscopy and chemical cross-linking combined with mass spectrometry.
Researchers have discovered a type of liquid crystal that dissolves in water, holding potential for biomedical applications. When placed in water droplets and oil, the liquid crystals exhibit unique behavior, transforming water droplets into faceted gemstones.
Researchers developed a new technique called SWARPES to study electronic properties at buried interfaces in metal oxides. This allows for the selective examination of subsurface interfaces with soft or hard x-rays.
The study pioneers a new approach to forming a 2-D, single-atom sheet of two different materials with a seamless boundary. By rethinking traditional methods, researchers combined graphene and boron nitride into a single layer only one atom thick.
Researchers have determined the molecular structure of a Tet family member from Naegleria gruberi, providing insights into its role in regulating gene expression and potential therapeutic targets for cancer. The study sheds light on how Tet enzymes interact with DNA, enabling scientists to design drugs that manipulate them.
Researchers at the University of Pennsylvania have developed a method to grow liquid crystal 'flowers' using silica beads as templates, creating a lens-like structure with potential applications in optics and optoelectronics. The new approach demonstrates directed assembly and paves the way for the creation of custom optical components.
Researchers have predicted and confirmed the existence of unusual sodium chlorides that break traditional charge balance rules in chemistry. These compounds may have practical applications and could exist in planetary interiors under high pressure.
A research team has decoded the molecular structure of the serotonin receptor at room temperature for the first time, revealing its dynamics and giving a more realistic picture of its physiological function. This breakthrough could lead to better-designed drugs and new ways to investigate large biomolecules.
Scientists at Rice University and MARUM developed a new computerized model to simulate the complex chemistry at the boundary layer, where quartz and water meet. The model accurately predicts dissolution rates, which could revolutionize engineering calculations related to building materials and radioactive waste storage.
A Northwestern University research team successfully built near-perfect single crystals out of nanoparticles and DNA, transforming disordered materials into orderly crystal structures. The technique, developed by Chad Mirkin and Monica Olvera de la Cruz, holds promise for novel technologies and new industries.
Researchers at Cambridge's Cavendish Laboratory have achieved high coherence in nitrogen-vacancy centers of nanodiamonds, enabling the creation of ultra-precise nanoscale magnetic field and temperature detectors. This breakthrough could enhance our understanding of chemical reactions within single cells and signalling in neural networks.
Researchers at SLAC's Linac Coherent Light Source (LCLS) X-ray laser used the technique to generate an accurate model of lysozyme, a well-studied enzyme found in egg whites. The study opens the door to new discoveries and explores the potential for LCLS to play a leading role in studying important biomolecules of unknown structure.
A new microscope allows scientists to capture the movements of atoms and molecules at the nanoscale, revealing crucial functions in nanoscale devices. This breakthrough has applications in nanoelectronic technologies and clean-energy industries.
Scientists have solved the structure of a key protein in the Nipah virus, which could lead to the development of an antiviral drug. The discovery was made by a team at the Scripps Research Institute and found similarities with measles and mumps viruses.
The University of Pennsylvania researchers have developed a new tool to direct the assembly of particles and materials using elastic energy. This technique, combined with a new template design, allows for the creation of complex patterns and structures. The team's findings could lead to breakthroughs in fields such as displays, sensors...
Researchers at NIST have engineered a self-correcting crystal material that enables tunable dielectrics for microwave and advanced communication devices. The new material has perfect faults, reducing power loss and increasing efficiency.
Researchers have developed a new method to refine low-resolution X-ray crystallography data for biomolecules, combining PHENIX and Rosetta software. The new approach can aggressively optimize models to fit the data while presenting realistic geometry.
Researchers have recorded unprecedented observations of energy moving through diamond impurities, providing a starting point for new insights into critical electronic-state phenomena. The findings hold broad implications for magnetometry, quantum information, and sensing applications.
Researchers have determined the atomic-level structure of the tripartite HIV envelope protein, a complex target for vaccines. The findings provide insights into the process by which the Env trimer assembles and undergoes shape changes during infection.
Using genetic algorithms, researchers at Columbia University have developed an inverse design framework to create novel nanostructured materials. The study shows the potential of machine learning and
Researchers at Ludwig-Maximilians-Universität München have solved the structure of RNA polymerase I, a crucial enzyme in cell growth. The study reveals details on how the enzyme regulates protein synthesis and provides potential targets for cancer treatment.
Researchers found that L-cystine crystals form stacked hexagonal 'islands' with one screw dislocation, contradicting long-standing BCF theory. However, further analysis revealed that the crystals actually grow in a manner predicted by the theory, showcasing the complexity of crystal growth.
Physicist Aleksey Kolmogorov and colleagues successfully synthesized the world's first superconductor designed entirely on the computer. The iron tetraboride compound exhibits an unexpected type of superconductivity and exceptional hardness, with potential applications in power transmission.
A team of researchers has made the first detailed observation of how energy travels through diamonds containing nitrogen-vacancy centers, defects that can be manipulated with optical methods. The findings could help scientists understand the properties of these diamonds, which have potential applications in quantum computing and imagin...
Researchers at Scripps Research Institute have developed a new method, called Extensive Combinatorial Refinement (ExCoR), that combines existing formulas to create more accurate computer models of molecules. This process can help identify the best algorithms for refining structural details and improve the development of drug candidates.
Scientists at Brookhaven National Laboratory identified a signature to look for in superconductors, suggesting that fluctuating charge stripes may play a role. The researchers used neutrons to analyze the material's electronic structure and found that the displacements from average structure persisted with increasing temperature.
Researchers successfully introduced mass into Dirac electrons, a crucial step towards understanding topological crystalline insulators. The discovery provides new insights into the electronic behavior of these materials and paves the way for novel functionalities at the nanoscale.
Researchers from McGill University have confirmed a 50-year-old hypothesis on the RNA double helix structure, revealing its potential applications in biological nanomaterials and supramolecular chemistry. The discovery may lead to new possibilities for genetic information storage and treatment of diseases like HIV and AIDS.
Researchers at the University of Rochester have successfully levitated nanodiamonds in free space using a technique called laser trapping. The experiment enables the measurement of photoluminescence from defects inside the diamonds, which could lead to breakthroughs in quantum information and computing.
Researchers investigated defect formation in Coulomb crystals during phase transitions, using ion traps to compress and fold the crystal structure. The experiments confirmed the Kibble-Zurek mechanism's predictions, demonstrating its importance in understanding complex physical phenomena.
Researchers analyzed X-ray crystal structures of resurrected Precambrian proteins, revealing structural similarity among proteins since life first evolved on Earth. This approach provides insights into protein structure evolution and may aid in designing novel proteins.
Scientists have unexpectedly created two differently colored crystals from one chemical, revealing new insights into agostic bonds crucial for industrial catalytic reactions. The discovery provides valuable information for making plastics and fuels.
Scientists discovered that certain sugars can control the timing and placement of minerals used to produce hard structures like shells and exoskeletons. The research proposes a theory on how charged and uncharged sugars can create these structures, offering potential for new environmental and medical technologies.
Researchers at the University of Oregon have developed a game-changing approach to synthesize thousands of new compounds with ultra-low thermal conductivity. The team designed layered elemental precursors that self-assemble into metastable compounds with predictable nano-architectures and specific crystallographic orientations.
Researchers at Bielefeld University can now determine the three-dimensional structure of gaseous molecules with unprecedented precision. The university's electron diffractometer allows for the analysis of small molecules in their pure state, shedding light on fundamental questions about atomic arrangements.
Researchers have developed a new method to accelerate the growth of solar cells by optimizing the coevaporation process. This technique enables faster growth stages while controlling defect formation, resulting in improved efficiency and reduced material waste. The findings, published in Advanced Energy Materials, provide valuable insi...
Researchers developed a printing process called FLUENCE that produces semiconductors with strikingly higher quality than conventional methods. The technique enables thin films capable of conducting electricity 10 times more efficiently, paving the way for revolutionary advances in organic electronics.
Researchers develop a new method to model large biomolecules in their native state using X-ray flash data, providing insights into protein structures and dynamic behavior. This technique promises to solve the shapes of more than 80,000 proteins in a static state and offer clues on individual components of mixtures.
Researchers at UC Davis have developed a new method to create iron-platinum alloys with tailored magnetic properties, making them ideal for future magnetic recording technologies. The alloys retain information even at small nanomagnet sizes and are resistant to heat effects.
New research finds that coherent twin boundaries in metals contain tiny kink-like steps and curvatures, making them stronger but also more electrically resistant. This discovery challenges previous understanding of these materials and could lead to improved engineering designs for high-strength applications.
At Harvard University, scientists have developed a method to assemble intricate nanostructures into delicate flower-like structures. By manipulating chemical gradients, researchers can control the growth behavior of these crystals to create precisely tailored structures, mimicking nature's own self-assembly processes.
Scientists find that altering the structure and assembly of cellulose can make it more easily broken down, leading to more efficient biofuel production. By modifying the synthesis process, plants can produce cellulose with fewer structured bundles, reducing the need for time- and energy-intensive industrial processes.
Researchers from Technion-Israel Institute of Technology and University of Wisconsin-Madison discover the crystalline secrets of vaterite with the help of a needlelike spicule from a sea squirt. They found that vaterite is composed of two different crystal structures coexisting within a pseudo-single crystal.
A research team developed a new protocol for X-ray single-crystal diffraction analysis that doesn't require crystallisation of the target molecule. This method allows for the analysis of scarce marine natural products and characterises many compounds previously impossible to analyze crystallographically.