Articles tagged with Crystal Structure
Researchers have developed a faster and simpler technique to analyze the structures of small molecules, reducing the time needed for X-ray crystallography. This new method, microcrystal-electron diffraction (MicroED), allows scientists to study small-molecule structures at high resolution in under 30 minutes.
A new method for measuring crystal response to electric fields was developed by an international scientific team from Peter the Great Saint-Petersburg Polytechnic University. The technique helps improve existing and create new functional materials.
Researchers found that flow units, similar to structural defects like dislocations, play a crucial role in metallic glass's mechanical and thermal properties. This discovery paves the way for designing optimized materials through tailoring of these units.
Researchers at Rice University have discovered the structure of the condensin protein complex, a ring-shaped protein that helps condense chromosomes. The finding settles a long-standing controversy over the mechanism by which the complex wrangles DNA, and provides insight into its activity during mitosis and cell life cycles.
Researchers at Lobachevsky University have synthesized a high-purity sample of barium hypomanganate chloride and characterized its crystal structure and chemical environment. The study has stabilized the degree of manganese oxidation and measured its isobaric heat capacity, revealing anomalous behavior below 15K.
Researchers developed a machine-learning program that can predict atomic responses to magnetic fields in record time, combining with NMR spectroscopy to identify complex compound structures. This breakthrough accelerates drug discovery and makes larger molecules accessible.
Researchers at VIB and Ghent University have discovered a novel method to block immunosuppression in cancer by targeting the protein assembly that dampens immune responses. This breakthrough could lead to the development of new therapies to stimulate immunity against tumor cells.
A research group at IBS invents contact-free annealing technique to convert polycrystalline metal foils into single crystals with superior properties. They successfully produced large single crystal metals up to 32 cm2, including copper, nickel, cobalt, platinum, and palladium.
Researchers studied copper-based superionic crystal CuCrSe2, revealing copper ions flow like liquids above a certain temperature. This discovery could lead to the development of more efficient and safer rechargeable batteries by replacing liquid electrolytes with solid superionic materials.
The European XFEL has obtained the first scientific results from its operation, revealing the structure of an antibiotic-disabling enzyme. The international collaboration used X-ray flashes to obtain flash X-ray exposures of tiny crystals, allowing them to build up the full three-dimensional structure of the biomolecule.
The European XFEL has successfully obtained the first scientific results from its X-ray laser, revealing a previously unknown structure of an enzyme responsible for antibiotics resistance. The team achieved this at an unprecedented speed of 220 nanoseconds, outpacing previous X-ray lasers by more than an order of magnitude.
A team of researchers has created a systematic method to produce defects with desired optical properties in SiC, enabling its potential use in quantum computing. They discovered three previously unreported signatures and found that producing defects follows a pattern.
Scientists at NUST MISIS discover that molybdenum disulfide, a promising basis for ultra-small electronic devices, degrades in air due to spontaneous oxidation. However, they also found that the material can be transformed into a solid solution MoS2-xOx, which is an effective catalyst for electromechanical processes.
Researchers from Russia and Germany uncover a new gold compound, AuTe2, with incommensurate modulation in its crystal lattice. This discovery solves the long-standing mystery of calaverite's crystal structure, providing insights into its electronic spectra and superconducting capability.
Researchers at RUDN University developed a precise model of intermolecular bonds in diazone dyes, revealing their photochromic properties and importance in stabilizing dye structures. This study can be useful for creating new azo dyes with essential physical and chemical properties.
A team of researchers has discovered a novel colour-generation mechanism in the 'rainbow' weevil, which could lead to the creation of cosmetics with purer hues and digital displays with true colours from any angle. The mechanism is composed of three-dimensional crystalline structures made from chitin that control both size and volume f...
Researchers discovered that GTPases like EF-Tu can exist in a mixture of structures, rather than being fixed as 'on' or 'off'. This flexibility may help develop targeted drugs for bacterial infections and cancer treatment.
Researchers have developed a new method to directly observe the crystallisation process of two-dimensional materials under the electron microscope. This allows for accurate study and control of the process, leading to better production methods for ultra-thin crystals with desired properties.
The study provides guidance on synthesizing high-quality graphene with less domain boundaries. Researchers found that the lattice orientation of graphene is determined by the Cu crystal it is nucleated on, regardless of the substrate's crystallinity.
MIT researchers create a new technique to alter membrane proteins, making them more accessible for structural studies. The QTY code allows for the substitution of hydrophobic amino acids with hydrophilic ones, enabling water-soluble proteins that can be analyzed using X-ray crystallography or NMR.
Scientists developed a unique organic fluorophore that changes its emission color in response to external stimuli. The dye exhibits two-color behavior, emitting green and orange light depending on its solid-state morphologies.
Researchers discovered a novel quasi-one-dimensional superconductor K2Mo3As3 with a critical temperature exceeding 10K. This breakthrough indicates that Cr and Mo-based Q1D superconductors share common underlying origins, paving the way for further exploration of exotic superconducting mechanisms.
A study published in PLOS ONE found intricate tunnel systems inside garnet crystals from Thailand, suggesting the presence of microorganisms. The tunnels were formed by endolithic microbes, providing a rare source of iron for these organisms in nutrient-poor sediments.
Physicists applied high pressure to create polycrystal samples of dysprosium germanide, revealing a charge-density wave phenomenon. The wave influences crystal lattice distortions and magnetic ordering, leading to an anti-ferromagnetic order at lower temperatures.
A new AI model developed by researchers at the University of Waterloo can accurately detect atomic structures in metals, leading to greater confidence in determining their integrity. The system uses deep learning and generates images of defects to produce a highly effective algorithm for identifying various types of crystal structures.
Researchers at Ural Federal University have discovered a new mineral called uakitite, consisting of vanadium nitride. The crystal structure of the mineral was studied using electron diffraction techniques, allowing for its discovery and registration.
Researchers at UC San Diego have created a nanosized device that can generate light through inelastic electron tunneling, increasing efficiency to approximately two percent. The device uses a metal-insulator-metal junction to convert electronic energy into photons, with potential for further optimization.
Researchers at Argonne National Laboratory used novel tools to study local order in relaxor ferroelectrics, revealing a correlation between butterfly-shaped diffuse scattering and piezoelectric behavior. This discovery could lead to the development of non-lead-based materials with improved properties.
Researchers successfully predicted a non-metallic nitrogen-rich tungsten nitride, h-WN6, with exceptional hardness (57 GPa) and thermal stability. The material exhibits high energy density, making it a potential candidate for advanced applications.
PCRAM researchers review the development of phase change materials and propose a new understanding based on octahedral structure motifs and vacancies. This leads to decreased power consumption in phase transitions, enabling nanosecond or even sub-nanosecond operation.
Researchers at the University of Illinois and Texas have optimized boron arsenide crystal growth to create materials with excellent thermal properties. The new material can effectively dissipate heat, outperforming existing heat spreaders three times over.
A new ruthenium-based catalyst has been developed, featuring highly active flat surfaces that significantly improve its performance compared to traditional metal-supported catalysts. The catalyst's high turnover frequency and reusability make it a promising solution for the large-scale production of valuable chemicals.
Researchers have solved the atomic structure of a brain receptor bound to GABA, a neurotransmitter that regulates calming signals in the brain. The high-resolution structures provide insights into how drugs like benzodiazepines act on the receptor, paving the way for better treatments for epilepsy and anxiety.
Russian scientists have developed a new method of bioprinting that allows creating 3D-biological objects without the use of layer-by-layer approach. This technology was made possible by magnetic levitation experiments in microgravity conditions, enabling the creation of radiation-sensitive biological constructs and repair of damaged ti...
Researchers have developed a two-step process to produce high-quality covalent organic frameworks with crystalline structures, enabling precise control over material properties. These materials have promising potential for water purification, solar energy storage and body armor applications.
A team of researchers at Cornell University has discovered 10-nanometer, individual, self-assembled dodecahedral structures that could have significant applications in mesoscale material assembly and medical diagnostics. The discovery was made using a combination of machine learning algorithms and cryogenic electron microscopy.
Scientists have engineered a molecular soft cocrystalline structure that exhibits reversible twisting upon heating, elastic bending under mechanical force, rapid reversible bending under UV light, and self-healing properties. This multifunctional quality makes it an attractive candidate for advanced materials in electronics and optics.
A team of Japanese scientists has discovered a mineral known as moganite in a lunar meteorite, reinforcing the theory that water exists on the Moon. The existence of moganite implies that there is water activity on the Moon.
Researchers have discovered how messenger RNAs are transported out of the nucleus through nuclear pore complexes, a process that occurs in just a fraction of a second. The study also sheds light on how mutations affect protein stability and could lead to the design of therapeutic drugs for motor neuron diseases.
Researchers at Aalto University have created a time quasicrystal that demonstrates the self-sustaining oscillation and coherency of time crystals. This breakthrough could pave the way for real-world applications in quantum information processing devices.
A novel VLS growth mechanism yields nanoscopic semiconductor ribbons only a few atoms thick, opening doors to highly integrated electronic and photonic devices. The breakthrough method uses liquid droplets to mediate the growth of MoS2 ribbons in a unique 'crawling mode', allowing for direct 1D growth of van der Waals layered materials.
A recent study from UNIST has unveiled a new method for growing elastic diamonds, which can bend and stretch up to 9% without breaking. This breakthrough challenges previous theories that diamonds are brittle and opens possibilities for tuning their optical and optomechanical properties.
Spin waves transmitted through a magnetic insulator film have the advantage that energy loss is small and long-distance transmission is possible. By studying the influence of stress magnitude on spin waves, researchers found that large stress can transmit spin waves even with weak permanent magnets attached.
A new system has been designed to improve the quality of frozen horse sperm by using impermeable cryoprotectants that protect the external part of the cell. This method has been shown to be more effective than traditional permeable cryoprotectants, which can damage the sperm membrane and affect fertility.
Researchers from Lobachevsky University and Nanyang Technological University have developed a new method for obtaining bismuth-containing apatite, a material with antimicrobial properties. The team used solid-phase synthesis and thermodynamic modeling to study the compound's crystal structure and behavior under operating conditions.
Researchers used a powerful X-ray laser to analyze amyloid proteins, which are linked to neurodegenerative diseases like Alzheimer's. The new method allows for detailed structural analysis of individual amyloid fibrils, enabling scientists to better understand their role in disease development.
Three new classes of domain walls have been discovered in helimagnets, characterized by topological defects. These domain walls exhibit exotic magnetic properties that could be used for future data transfer and storage technologies. Researchers are now attempting to direct these walls with an electric current.
The study reveals that bone's mineral crystals have a hierarchical structure integrated into the larger-scale skeleton, with 12 levels of hierarchy. The combination of mineral and protein forms continuous networks to provide strength essential for functional bones. This breakthrough builds on previous studies and sheds light on the uni...
Gallium oxide, a promising material for power electronics, can be controlled to grow different polymorphs using a simple method involving hydrogen chloride gas. This achievement has significant implications for the development of novel high-powered electronic devices and applications.
Scientists have successfully engineered defects in diamonds to store and transfer quantum information, a crucial step towards quantum computing. The technique uses vibrations from a mechanical resonator to stabilize optical properties, enabling the manipulation of electron orbitals.
Scientists at OIST have developed stable and efficient perovskite solar cells that could revolutionize the solar industry. The new material is made of inorganic components, making it more heat-stable than previous versions.
Kyoto University scientists have developed a shape-memory effect in porous materials, which can change and retain their shapes. The new material, with a porosity of 46%, has been shown to adsorb carbon dioxide and retain its shape after multiple cycles.
Scientists at Johns Hopkins University and Princeton University simulated the deep interiors of super-Earths using intense X-ray beams, revealing insight into their crystal structure. The study's findings have significant implications for understanding planetary architecture and may lead to breakthroughs in exoplanet research.
Researchers simulated conditions inside a planet three times larger than Earth using high-powered laser beams. The study revealed that the crystal structure of iron-silicon alloys changes with higher silicon content under extreme pressures, providing new insights into the nature of super-Earths and their cores.
Researchers at Nagoya University have successfully determined the crystal structure of the gastric proton pump, a key enzyme in stomach acid secretion. The study sheds light on how the pump expels hydrogen ions into the stomach despite its acidic environment.
Scientists at the University of Portsmouth and NREL have engineered an enzyme that can break down polyethylene terephthalate (PET) plastics, a major contributor to ocean pollution. The discovery could lead to a recycling solution for millions of tons of plastic waste.
Scientists have engineered an extremely low loss nanostring that vibrates for minutes with a period of a microsecond, allowing them to 'hear' the sound of photons in a laser beam. The researchers hope to use this technology to detect weak light forces and potentially cool mechanical objects to absolute zero.
Researchers at Hiroshima University used machine learning to design chiral crystals, analyzing 686 molecules and predicting the best chemical groups. The model, trained on data from 1000 achiral crystals, suggests that carbon, nitrogen, and oxygen elements are most likely to coexist in a chiral crystal
A team of scientists has uncovered the molecular details of protein crystal nucleation, a process with great medical and scientific relevance. They developed a new methodology to study this elusive system, providing insights into polymorph selection and guiding the crystallization process to produce desired crystal forms.
Researchers propose a new approach to estimate degree of similarity between coordination polyhedra and reference polyhedra. The method is tested on over 400 crystalline structures and demonstrates its consistency with structural crystal chemistry theorems.