Articles tagged with Atomic Structure
Researchers have reconstructed the 3.1 Å structure of the HSV-2 B-capsid, expanding our understanding of its assembly mechanism. The study revealed four major conformers of the VP5 protein, which form extensive intermolecular networks and stabilize the capsid.
Researchers used advanced imaging techniques to subject small gold particles to extreme temperatures, revealing their remarkable resilience and ability to change shape. The findings have significant implications for nanotechnology applications in catalysis and aerospace.
A novel test bed for non-equilibrium many-body physics has been created using a one-dimensional quantum wire containing a mesoscopic lattice. Researchers were able to control the interactions between electrons and observe the emergence of a band-insulating phase with weak interactions.
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.
The study reveals a clear correlation between structural order and dynamics in supercooled liquids, indicating that glass formation is thermodynamic. The researchers found that the link between slow alpha and fast beta modes has a common structural origin, resolving two issues at once.
The Protein Society has awarded three researchers with prestigious prizes: Jane and Dave Richardson, Yifan Cheng, and Susan Marqusee. The winners have made groundbreaking contributions in protein structure determination, cryo-EM, and protein folding. Their work has significantly advanced our understanding of biology.
The discovery provides insight into the construction and function of the NPC, which spans the double membrane of the nuclear envelope and regulates development and cell growth. The researchers' novel Integrative Modeling approach accurately placed 552 NPC proteins within the channel.
Researchers created metastable states in an artificial quantum many-body system, observing the switching dynamics between two states. They found that thousands of atoms move through quantum tunnelling during the process.
A UCLA research team has developed a method to create artificial superlattices comprising ultra-thin two-dimensional sheets with drastically different atomic structures. This allows for the confinement of electronic and optical properties to single active layers, enabling faster and more efficient semiconductors and advanced LEDs.
Researchers mapped battery materials with atomic precision, finding that surface structure differs from interior and optimizing performance by varying lithium-to-metal ratios. The study used advanced electron microscopy techniques to analyze cathode material structures, revealing new insights into phase transformations and capacity loss.
Researchers at Saarland University are using atom-probe tomography to study niobium's role in steel microstructure and its effects on material properties. The goal is to design internal steel structures for specific applications and improve material properties.
Researchers have developed the first three-dimensional computer model to represent human metabolic processes. This new tool, Recon3D, integrates structural data on over 4,000 metabolites and nearly 13,000 proteins, allowing for more accurate simulations of metabolic reactions and better understanding of diseases such as Parkinson's.
A UT Dallas team has addressed a long-standing problem in scanning tunneling microscopes, preventing tip crashes that can damage samples and forfeit valuable time. The breakthrough enables atomically precise manufacturing, leading to innovations in materials science, medicine, and computing.
By adding oxygen atoms to a perovskite-like crystal material, researchers created 2D electron gas with unique properties. The discovery opens up new possibilities for faster and novel electronic devices, including superconductors and actuators.
Scientists used advanced microscopy techniques to study the atomic structure of PMN, a widely used relaxor material in ultrasound and sonar applications. The findings reveal that atoms are arranged in a gradual gradient, differing from conventional wisdom predictions.
Scientists have revealed the atomic-level structure of a molecular complex responsible for modifying proteins, which could lead to new medications for cancer and other diseases. The complex, known as OST, plays a key role in protein glycosylation, a process linked to numerous human body functions.
Researchers at Caltech and ETH Zürich created a systematic design method for metamaterials using quantum mechanics. They can engineer materials to manipulate incoming waves, such as bending light or reflecting sound waves. This breakthrough could lead to widespread use of metamaterials in various applications.
Scientists from Siberian Federal University and Nikolaev Institute of Inorganic Chemistry create active layers in hydrogen detectors using metal phthalocyanines and palladium membranes. This increases the sensor's sensitivity, enabling detection of hazardous gases and aiding in disease diagnosis. The researchers plan to further improve...
Researchers at Tokyo Institute of Technology have developed a new technique to determine and visualize the three-dimensional structure of individual dopant atoms in semiconductors, correlated with their electrical activity. This breakthrough could support the development of high-performance devices.
Researchers at Scripps Research Institute and Duke University have made the first determination of TRPM8's atomic structure using cryo-electron microscopy. The findings reveal unexpected binding pocket locations for menthol and other cold-sensing molecules, opening new avenues for drug development.
Researchers at Oak Ridge National Laboratory have developed a precision de-icing technology that uses high-resolution modeling to identify areas most vulnerable to drivers during hazardous weather conditions. The team also discovered a function of certain microbes that produces a new derivative of vitamin B12, which could enhance the e...
Researchers at RIKEN and partner institutions have made the most precise measurement to date of the proton's magnetic moment, achieving a precision of less than one part per billion. The study used a combination of advanced engineering techniques and precise frequency measurements to isolate a single proton in a Penning trap.
Researchers at LMU München precisely tune carbon dot's properties by introducing nitrogen atoms, enabling diverse applications. The study reveals that the physicochemical characteristics can be simply and precisely controlled, opening up new possibilities for energy conversion and bio-imaging.
RUDN University scientists have discovered a new formation mechanism for anti-cancer substances, which can be used to synthesize organophosphorus compounds with specified properties. The researchers found that the reaction does not proceed according to the previously thought Michaelis-Arbuzov reaction mechanism, but rather another way.
Researchers at Oak Ridge National Laboratory developed a method to quickly collect building structure datasets from satellite images, supporting emergency response efforts after hurricanes. They also used neutrons to discover the molecular mechanism responsible for flow in a hydrogen-bonding liquid and studied a semiconducting material...
Researchers at UNIGE have successfully demonstrated the entanglement of 16 million atoms in a crystal crossed by a single photon, confirming the theory behind future quantum networks. This breakthrough confirms that a vast number of atoms can be entangled and intertwined by a strong quantum relationship.
Researchers at Berkeley Lab have found a way to reversibly change the atomic structure of a 2-D material by injecting electrons, using far less energy than current methods. This process has potential for new electronic memory and low-power switching in ultra-thin devices.
Researchers found superstructures at general grain boundaries that affect the performance of polycrystalline engineering alloys. The discovery could enable the engineering of alloyed materials with superior properties and greater ductility and strength.
Researchers have solved the structure of the 'ready to fire' bacterial speargun, a nano-sized weapon that injects deadly toxins into competitors. The T6SS speargun works by rapidly contracting and pushing out a toxic spear, drilling a hole into target cells with incredible speed.
A team from Okayama University in Japan has discovered a new family of ice phases called aeroices, which have the lowest density of all known ice crystals. These ices can be more stable than zeolitic ice at certain thermodynamic conditions under negative pressure.
Researchers have developed a new multiple-wavelength neutron holography technique that can produce clear three-dimensional atomic images. This method uses neutrons to study the structure of materials made up of lighter elements, such as calcium fluoride crystals with europium ions.
Scientists demonstrate reversible manipulation of quantum interference in metal nanostructures by applying mechanical strain to deform the contact. This allows for the creation of a voltage switch with reliable performance over multiple cycles.
Researchers observe nanocrystals forming superlattices in seconds, enabling fine-tuning of precision materials. The discovery will help create novel materials for magnetic storage, solar cells, optoelectronics, and catalysts.
Researchers at Aalto University developed a chemical method to create graphene nanoribbons with embedded electronic components, including diodes and tunnel barriers. The precision of the structures was achieved through atomic-level control over the chemical reaction process.
Researchers develop method to directly observe dynamic fracture in metals, shedding light on material properties and behavior under stress. The technique enables real-time observation of atomic structure deformation and determination of stress required for fracture.
Researchers at Washington University in St. Louis used a new experimental setup to measure the atomic properties of liquid materials, resolving some long-standing debates about the glass transition. The team found that fragility is related to atomic interactions and structural changes during the transition.
Researchers at the University of Illinois have developed bio-inspired dynamic templates used to manufacture organic semiconductor materials that produce printable electronics. This technique is also eco-friendly compared with how conventional electronics are made, which gives the researchers the chance to return the favor to nature.
Researchers found that nickel exhibits a distinct anomaly at high temperatures, which may explain the origin of Earth's magnetic field. This discovery challenges conventional theories and provides new insights into the planet's core.
A team of researchers led by Carnegie Mellon University chemist Roberto R. Gil and Universidade Federal de Pernambuco chemist Armando Navarro-Vázquez has developed a program that automates the process of figuring out a molecule's three-dimensional structure, reducing human error and shortening the pipeline of drug discovery.
Researchers at the University of Liverpool have developed a computer-guided strategy that led to the discovery of two new materials in the laboratory. The algorithm uses chemical understanding of known materials to suggest new combinations of atoms, resulting in stable and synthesizable materials.
Researchers create a new type of alloy with a hexagonal close-packed structure using common metals and high pressure. The resulting material exhibits unique properties, including higher strength-to-weight ratio, better heat resistance, and improved durability.
Researchers discover that irradiation-induced disordering in materials differs from vitrification, leading to a more disordered atomic network resembling liquids. This finding has significant implications for material selection in nuclear applications and raises safety concerns.
An international team of scientists has determined the 3-D atomic structure of over 1,000 proteins that are potential drug and vaccine targets. The experimentally determined structures have been deposited into the World-Wide Protein Data Bank, freely available to the scientific community.
Scientists have created a model to analyze irregular atomic structures at grain boundaries, where two materials meet. The Polyhedral Unit Model identifies patterns of atomic shapes and can help determine how these structures affect material properties.
The study provides detailed insights into the function of IP3R, a molecular train station controlling cell functions. The new crystal structure reveals how IP3 signals trigger the opening of the Ca2+ channel, shedding light on long-range communication mechanisms.
Researchers at Harvard University created a time crystal, a periodic arrangement of atoms across time, using nitrogen-vacancy centers in diamond. The discovery offers insights into non-equilibrium quantum systems and may lead to new applications in precision measurement.
Researchers at Duke University have created two new magnetic materials using high-throughput computational models. The success marks a new era for the large-scale design of new magnetic materials, with potential applications in motors, MRI machines and beyond.
Scientists have gained insight into the NS5 protein of Zika virus, a crucial enzyme involved in viral replication. The study reveals its structure and function, as well as comparisons with other related viruses, which will aid in the search for compounds to halt virus reproduction.
Researchers at the University of Konstanz have proven the existence of Mermin-Wagner fluctuations, which grow logarithmically with system size and prevent crystal formation over long ranges. In contrast, small systems can exhibit crystal formation.
Researchers have solved a decades-long puzzle about metallic glasses' atomic structure using a new method combining various techniques. The study revealed a hidden amorphous phase within a certain temperature range, linked to metals' ability to form glass and potentially enabling the development of stronger novel materials.
Scientists at Aalto University have developed a method to arrange individual atoms to engineer electronic properties in artificial materials. The approach enables the creation of designer quantum materials with precise control over atomic structure.
Researchers at Scripps Research Institute have developed a versatile molecule-building tool to create new drugs and chemical products by modifying difficult-to-access sites on target molecules. The new template, which anchors reversibly to heterocycle backbones, eliminates reaction steps and is required in small quantities.
Researchers at UC Davis have discovered new types of cage-like compounds called clathrates that can convert waste heat into electricity. The compounds, which trap an atom inside a larger cage, show promise for improving thermoelectric devices.
Researchers have gained insight into the atomic and nuclear structure of heavy, radioactive elements for the first time. The technique involves laser ionization, which significantly increases sensitivity and accuracy, allowing for measurements of atoms per second.
Researchers at KAUST developed a method for fine-scale imaging of metal-organic frameworks (MOFs), visualizing their atomic structures without damage. The high sensitivity of detectors allowed them to acquire images with resolutions as low as 0.21 nanometers, revealing surface and interfacial structures.
Researchers at University of Warwick developed a new technique to measure electronic structures of two-dimensional materials, paving the way for highly efficient nano-circuitry. This breakthrough could lead to smaller, flexible gadgets and revolutionized solar power with strong absorption and efficient power conversion.
Researchers from IBS and Peking University demonstrate how to synthesize horizontal arrays of CNTs with the same structure. The team successfully produces conducting (12, 6) and semiconducting (8, 4) CNTs with high selectivity and purity.
A team of scientists at the University of Alberta has successfully applied atomic force microscopy to pattern and image electronic circuits at the atomic level. This breakthrough could lead to the development of ultra-fast and ultra-low-power silicon-based circuits, potentially revolutionizing the technology industry.
Researchers used a combination of computational power and experimental data to study magnetism in a real iron-platinum nanoparticle. The team was able to precisely model the atomic structure and simulate its magnetic properties, revealing defects and imperfections that affect performance.
Researchers use advanced electron microscopy to create 3D reconstruction of nanoparticle, enabling them to measure chemical order and disorder at the single-atom level. The study reveals insights into the material's properties and potential applications in high-density hard drives and disease detection.