Articles tagged with Crystal Structure
Researchers have determined the structure of a molecule that helps S. pneumoniae take up manganese, a mineral essential for its survival. This finding could aid in designing new drugs to block this pathway and deny the bacteria its manganese supply.
Researchers employ terahertz-waves to detect differences in higher-order structures of polylactide (PLA) and other biomass-based plastics. This achievement suggests that terahertz-waves have potential to enable nondestructive analysis of plastic properties.
Researchers have developed a novel type of soft hybrid ultramicroporous material that can change its pores to allow acetylene molecules to fit in perfectly. The material binds acetylene with unusual strength and allows for highly selective separation from other gases.
Researchers have determined the structure of human leukotriene B4 receptor 1 (hBLT1), a protein involved in inflammation and disease. The analysis reveals how the receptor recognizes its binding partners and interacts with them, opening up avenues for designing better drugs.
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.
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.
Scientists at Skoltech and KTH Royal Institute of Technology predict the existence of antichiral ferromagnetism, a nontrivial property of some magnetic crystals. This phenomenon could lead to unique magnetic domains and skyrmions, distinct from conventional chiral textures.
Researchers at Waseda University have developed a novel mechanism for inducing high-speed bending in thick crystals using the photothermal effect, enabling rapid actuation and simulation. This breakthrough has significant implications for flexible robotics, actuators, and soft robotics.
The OSA Advanced Photonics Congress will discuss the latest developments in integrated photonics, including photonic device research and their applications in networks. Renowned speakers will present on topics such as quantum science, free space communications, and artificial intelligence.
Researchers at Toyohashi University of Technology synthesized new Mn4+-activated red phosphors with high photoluminescence intensity, revealing the relationship between crystal structure and sintering temperature. The findings have important implications for the development of high-color-rendering-index materials for LED applications.
Researchers introduce RoseTTAFold, a neural network approach that accurately predicts protein structures, outperforming traditional methods and rivalling DeepMind's AlphaFold2. The tool's code and public server are now accessible to the scientific community, enabling rapid solution of challenging structure determination problems.
MicroED can solve high-resolution crystal structures from sub-micron-sized crystals, aiding small-molecule drugs and transient polymorphs determination. This approach helps guide synthesis strategies and inform production decisions.
Researchers have developed a machine-learning algorithm to categorize metal-organic frameworks by oxidation state, providing a solution to the long-standing problem in chemistry. The collective knowledge of the chemistry community was used to train the model, which captured the errors and inconsistencies in existing methods.
Researchers discovered ethane-eating microbes at hydrothermal vents, which use the same enzyme as methane-eaters to break down ethane. The enzyme's unique structure was visualized with unprecedented precision, revealing a larger catalytic chamber and additional methyl groups, allowing for efficient recognition of ethane.
Physicists have finally experimentally documented the melting of Wigner Crystals into a liquid in response to quantum fluctuations, a long-sought-after goal in the field. The study used a novel experimental technique to observe this transition in atomically thin semiconductor bilayers.
Researchers successfully reduced crystalline device thickness to two atoms, enabling faster, more efficient electronic devices. The new technology proposes a way to store electric information in the thinnest unit known to science.
Researchers at Berkeley Lab design a nanoparticle composite that grows into 3D crystals, enabling faster production of electronic and optical devices. The discovery provides unprecedented control in fine-tuning nanolevel precision.
Researchers at UIC have developed a novel continuous-flow microfluidic device that enables parallel-connected micromixers to screen polymorphs, morphology, and growth rates of L-histidine in eight different conditions. The device significantly reduces screening time by about 80% compared to conventional methods.
Researchers co-led by Professor Wang Xunli discovered a structure link between a glass solid and its crystalline counterpart, finding that both forms share the same building block. The team also concluded that connectivity between clusters distinguishes the crystalline and amorphous states.
Zirconia ceramics exhibit improved toughness due to phase changes, but real-time observation of these changes is challenging. Researchers employ time-resolved X-ray diffraction to visualize transformation toughening during dynamic fracture.
Researchers developed a novel crystalline form of silicon with a hexagonal structure that can potentially be used to create high-performance electronic and energy devices. This discovery opens the door to exciting future research prospects for tuning optical and electronic properties through strain engineering and elemental substitution.
Researchers elucidated the molecular structure of RcaE, a representative cyanobacterial photosensor, revealing its unique conformation and potential proton transfer route to bilin. The study provides insights into how cyanobacteria evolved diverse spectral sensitivities and contributes to the development of new photoswitches.
Researchers have successfully simulated the interaction of two quantum dots, exchanging energy controlled by light. The study's results are promising for experimental research and development in various fields, including qubit development and photocatalysis.
Researchers at Yale-NUS College have discovered a way to produce single gyroid photonic crystals directly in feather colours of blue-winged leafbirds. This breakthrough has the potential to improve photovoltaic cells, fibre optics, and fuel cells by making them more efficient and cost-effective.
Researchers developed a new EBSD-based method to determine enantiomorph distribution in polycrystalline materials, including the chiral elemental structure β-Mn. This simplifies the preparation of materials with defined handedness.
Scientists have developed a new approach to improve hydrogen transport in solids, enabling faster movement of negatively charged hydrogen 'anions' at lower temperatures. The breakthrough could lead to more sustainable sources of energy and practical applications in electrochemical devices.
A Penn State scientist has developed a new mathematical formula that may solve the decades-old problem of spacetime in Einstein's theories of relativity. By placing space and time on an equal footing, Gopalan's approach removes the negative sign problem, allowing for traditional Euclidean geometry to be applied.
Scientists have created mega-crystals with unique properties by mixing different shapes of nanocrystals. These 'Lego materials' form long-range ordered dense lattices called superlattices, which exhibit superfluorescence and can be used for technical applications.
Researchers found that engineered defects in oxide crystals can increase electrical performance by five-fold and 19-fold in dielectric and piezoelectric properties, respectively. This breakthrough could lead to the development of more efficient capacitors with improved environmental and health benefits.
Researchers from Argonne National Laboratory and universities reveal alternating step kinetics during gallium nitride crystal growth, challenging conventional wisdom. The study uses advanced X-ray scattering techniques to monitor the rate of growth on the crystal surface steps.
Researchers developed new methodologies to analyze evanescent wave-induced scattering in transmission SAXS for semi-crystalline polymers. The methods provided information on lamellar thickness and long period of lamellar stacks.
Researchers found that the side of a chocolate bar facing the mold has a more orderly crystalline structure than the air-side face. This difference in crystal form could lead to improved taste and texture, as well as better appearance.
Researchers used slice-and-view scanning electron microscopy to uncover a twin boundary defect in a soft-block copolymer. The defect may be exploited to create materials with novel acoustic and photonic properties.
Two research breakthroughs accelerate the development of synthetic diamond-based quantum technology by addressing cost and fabrication difficulties. A new hard masking method enables precise engineering of optical defects in diamond devices, while a novel growth process uses lower-cost polycrystalline substrate.
Scientists at PNNL develop a novel material capable of capturing light energy, displaying high efficiency and programmability, with potential applications in photovoltaics, bioimaging, and beyond. The researchers' bio-inspired approach leverages natural hierarchical structures for exceptional properties.
Scientists have discovered that hydroxyapatite, a mineral present in human bones, can efficiently decompose hazardous organic compounds when activated using mechanical stress. This breakthrough could lead to the development of cheap, noble-metal-free catalysts for controlling volatile organic compounds.
Researchers have developed a new method for synthesizing zeolite catalysts that improves catalytic performance by up to five-fold. The improved hierarchical zeolite catalysts show unprecedented improvement in stability and selectivity, potentially reducing the need for costly turnarounds.
Researchers at Osaka University have developed a nondestructive method to identify threading dislocations in GaN substrates, which could lead to improved quality and yields. The technique uses multiphoton excitation photoluminescence mapping to analyze crystal defects.
The study presents two new derivatives of pyrrole-fused azacoronene, one with alkyl groups and the other with concave π-planes, exhibiting distinct redox properties and π-electron functions. The curved structure leads to a strong interaction with spherical fullerene.
Researchers at the Fritz Haber Institute have developed a novel method for fast material manipulation using laser pulses, significantly reducing switching times. The technique involves shining light on a semi-metallic crystal to re-organize its internal electronic structure, changing conductivity and allowing for ultrafast control.
Researchers developed a method to grow crystals with reversible phase transitions between 2D and 3D structures, leading to significant changes in electronic conductivity. The alloy's properties can be controlled by temperature, enabling potential applications in novel semiconductor technologies.
The CSD MOF Collection offers 10,636 metal-organic framework crystal structures for free access to academics, simplifying computational research. This collection is expected to advance fundamental research and support the growing industry interest in MOFs.
Researchers have successfully developed the first stable and strong self-assembling nanographene wires using 3D design. The team created a molecule called 'bitten' warped nanographene (bWNG) that can assemble into double-stranded, double-helix nanofibers.
Physicists search for rare Skyrmion phenomenon but find near-identical object with distinct qualities, dubbed an incommensurate spin crystal. This discovery could lead to new technologies in computer memory and storage.
Researchers from Skoltech have created a theoretical method to study electronic properties of 2D materials like silicene under high pressure. This approach could help create pressure sensors using these materials, which are promising candidates due to their unique properties.
A research team has discovered a new type of superconductor by inducing an extended buckled-honeycomb-vacancy (BHV) ordering in Ir16Sb18. The superconductivity emerges when the BHV ordering is suppressed through extra atom squeezing or Rh substitution, competing with the ordered vacancy as a potential superconducting parent phase.
Researchers developed an AI model that predicts crystal structures of multi-element alloys without requiring massive data. The method showed high accuracy in predicting structural phase and can save calculation cost by up to 1,000 times compared to previous methods.
Halide perovskites' twisting motion creates desirable renewable energy properties, helping materials scientists tailor chemical recipes for environmentally friendly applications. The study's findings apply to a wide range of halide perovskites, including hybrid organic-inorganic and lead-free variants.
Scientists at KAUST have successfully synthesized copper nanoclusters with a cuboid shape, exhibiting promising properties for photoluminescence and catalysis. The unique structure is driven by intercluster noncovalent bonding interactions, including hydrogen bonding and van der Waals forces.
The mosquito protein AEG12 destabilizes the viral envelope, breaking its protective covering. The findings could lead to therapeutics against viruses affecting millions of people worldwide.
Researchers have successfully mapped the metallic and insulating regions of atomically engineered devices made from rare-earth nickelate compounds at near-atomic resolution. This breakthrough enables a deeper understanding of the physics behind these electronic materials, which may be used in future computing approaches.
Physicists at Johannes Gutenberg University Mainz have combined two quantum sensing techniques to analyze a sample, enabling the mapping of magnetic fields and magnetization. The technique uses diamond color centers in diamond probes to provide a sensitivity that opens up new measurement options.
Researchers successfully filmed and restored the 3D structure of nanoparticles that share structural similarities with viruses using X-ray free electron laser (XFEL) and machine learning. This breakthrough enables high accuracy and speed imaging of viruses, opening new avenues for understanding their structures.
Washington State University scientists have developed a method to treat raspberries before freezing, allowing them to maintain their structure when thawed. The treatment involves infusing berries with pectin and calcium, partially drying them, and coating them with an edible layer, resulting in reduced syneresis and improved texture.
Nitrogen-bearing diamond crystals have been shown to produce high-quality X-ray beams due to their superior thermal conductivity and coefficient of expansion. Despite historical concerns over their quality, researchers from BFU successfully manufactured plates with sufficient defect-free areas using a unique device.
Researchers at USC Viterbi School of Engineering used living bacteria to create new materials with superior mechanical properties. These materials exhibit exceptional strength, fracture resistance, and energy dissipation, making them suitable for aerospace panels, vehicle frames, body armor, and defense applications.
Scientists from RUDN University have synthesized three new chalcogenides using iodine-based high-temperature synthesis, resulting in rare rhombic system crystal structures. The new compounds were obtained using nickel, gallium, indium, sulfur, and tellurium, showcasing the key role of iodine in their formation.
Scientists have detailed a mechanism in the Covid-19 corona that could help find new treatments by identifying promising drug targets. The researchers used computational modeling techniques to simulate movements of nearly 300 protein structures, focusing on the spike protein, which forms the extended corona of the virus.
Researchers at the University of Innsbruck have elucidated the crystal structure of exotic ice XIX, a new ordered variant of high-pressure ice VI. This breakthrough discovery reveals new insights into the electrical properties of these unusual ice forms and paves the way for further experimentation to study their properties.
Researchers used advanced transmission electron microscopy (TEM) to observe mesocrystals form in real-time, revealing a new pathway of crystallization by particle attachment. This discovery could help design materials for energy storage and understand natural mineralization.