Articles tagged with Molecular Structure
Tetravinylallene, a highly unsaturated molecule with two adjacent double bonds, has been synthesized for the first time, offering a new approach to constructing complex molecular frameworks. Its symmetry enables chemists to perform multiple reactions in one step, making it a potent tool for synthesizing natural products and drugs.
Researchers at TU Dresden and Ulm University developed a new synthetic route to create crystalline 2D polymers with defined structures. The 2D polymers have promising properties for electronic components and systems, including superior charge transport and chemiresistivity.
A research team has found a way to overcome the limitations of graphene-based molecular devices, creating structures that are both electrically and mechanically stable at room temperature. The breakthrough, published in Nature Nanotechnology, uses a combination of covalent binding and large ۆ-conjugated head groups to achieve stability.
Researchers have elucidated the complete three-dimensional structure of the MR complex, a molecular machine responsible for detecting and repairing DNA damage. The new structure reveals how the complex binds to DNA and initiates repair processes, shedding light on the intricate mechanisms involved.
A team of scientists has discovered that the three-dimensional shape of an RNA molecule, called MEG3, is essential for its role in tumor suppression. The researchers found two critical elements within the molecule that form 'kissing loops', which interact with each other to maintain its function.
A research team mapped the molecular structure of an aggressive protein aggregate that causes accelerated Alzheimer's disease. The study revealed variations in amyloid depositions and potential risk factors for spreading and amplification.
Researchers from Skoltech have identified relationships between photochromic material structure and device electrical performance. The study found that certain molecular structures improve switching speed and reliability, paving the way for the development of new organic memory elements.
Researchers at the University of Pittsburgh are investigating how small amounts of water affect the molecular structure of ionic liquids at solid-liquid interfaces. The goal is to leverage this understanding to achieve better performance in applications such as energy storage devices and manufacturing.
Researchers create a new approach to analyze crude oil composition by dissolving it in water under high temperature and pressure. The method is compliant with green chemistry principles, avoiding hazardous solvents.
Researchers at Tokyo University of Agriculture and Technology have designed a sequential synthesis sequence to create intricate molecules with various practical applications. The new method enables the efficient production of complex organic compounds, overcoming previous challenges related to bulkiness and instability.
Researchers at Indiana University created a powerful new molecule for extracting salt from liquid, with potential to increase drinkable water on Earth. The molecule is designed to capture chloride using carbon-hydrogen bonds, providing greater efficacy and versatility than previous designs.
Scientists have successfully synthesized helical ladder polymers using a novel electrophilic aromatic substitution method. The resulting molecules exhibit well-defined right-handed helical geometry and can be modified to create nanoscale architectures for various applications.
A team of researchers has mapped the molecular structure and dynamics of an aggressive protein modification linked to Alzheimer's disease. The study found that this modification accelerates disease progression, causing toxic protein fragments to aggregate into sticky plaques that disrupt brain cell communication.
Scientists have caught a new class of molecular switches in action, revealing the full sequence of structural transformations. The discovery sheds light on how thermal steps work and provides new control mechanisms to improve switch performance.
The researchers have fabricated an organic semiconductor pn junction with high crystallinity using molecular beam epitaxy, allowing for efficient electron and hole delocalization. This technology enables the realization of new concept organic solar cells with high energy conversion efficiency.
Researchers have isolated single H2O molecules using cryogenic ion spectroscopy and observed individual frequencies of related OH groups. The vibrational frequencies demonstrate site-dependent behavior and reveal that bound OH companions account for lower energy bands in the spectrum.
A new study investigates the Auger effect in aromatic hydrocarbons, revealing that molecules with pi electrons have a lower double ionization threshold. This finding favors Auger decay over saturated hydrocarbons, with potential applications in cancer treatment and atomic identification.
Researchers at Arizona State University have developed a method to assemble protein and DNA building blocks into three-dimensional cages. The technique allows for precise control over cage structure and size, opening up new possibilities for targeted delivery, structural biology, biomedicine, and catalytic materials.
A team of researchers has revealed the molecular structure of membranes used in reverse osmosis, a leading method of purifying brackish water into drinking water. The study found that the perpendicular packing motif is better correlated with optimal filtration properties and may be related to how water pathways are oriented.
Organic chemists at the University of Groningen have created an ordered array of light-driven rotary motors in a 3D solid-state material, achieving cooperative action. The system contains 3 x 10^20 motors per cubic centimeter, all running in unison and performing work on a macro scale.
Researchers discovered that resurrection plants control their water structure to survive dehydration by accumulating water molecular dimers and molecules with 4 hydrogen bonds. This regulation allows them to preserve tissues against dehydration-induced damages, enabling survival in dry states.
A UVA researcher is developing a new approach to determine molecular structures, which could lead to breakthroughs in drug discovery and disease treatment. The method, called Serial Solution Scattering Structure Determination (S4D), aims to collect small amounts of information from many easily prepared samples.
Researchers reveal a different internal structure of corn that can help optimize its conversion into ethanol. The discovery opens doors for new approaches to improve biofuel production efficiency.
Researchers at USTC successfully observe scattering resonances between atoms and molecules at ultralow temperatures, advancing ultracold polar molecules and chemical physics. The new insights aid in designing high precision clocks, powerful microscopes, and quantum computers.
MIT researchers have developed a new NMR technique that enhances sensitivity, enabling the analysis of complex protein structures in minutes. This breakthrough could provide insights into Alzheimer's and other diseases by studying amyloid beta protein and membrane-bound proteins.
Researchers at the University of Tokyo successfully synthesized a phenine nanotube with intentional periodic defects, which imbue it with semiconductor characters. The discovery uses a novel process starting with benzene and platinum atoms to create a controlled defect structure.
Researchers discovered that specific pentagonal and hexagonal molecular building blocks can self-sort through geometric complementarity. This phenomenon allows for the creation of nanostructures with predictable geometries, such as tubular structures with pentagonal pores.
Researchers use cryo-electron microscopy to capture detailed snapshots of the TFIID molecule's dynamic structure as it interacts with DNA. The high-resolution images reveal new insights into the molecular mechanism and provide opportunities for developing drugs that target its structural changes.
A joint UCLA/Caltech team has developed a new technique to determine the 3D structures of small molecules, such as hormones and medications, in under 30 minutes. The method uses micro-electron diffraction and relies on the presence of tiny crystals within the samples.
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 created DNA-based dendrimers that form rigid nanocages with controlled voids, preventing back-folding and maintaining structure even in high-salt concentrations. These nanocages show promise as functional carriers for medicine and material engineering applications.
Researchers discover water molecule stabilizes Tn antigen structure, leading to different interactions with cell receptors and antibodies. This finding has implications for developing synthetic molecules that can trigger a stronger immune response against cancer cells.
A new study elucidates the structure of lactoferrin, a protein that binds tightly to free iron ions to prevent damage to proteins and DNA. The researchers discovered that an amino acid plays a key role in the conformation stability of the protein.
Researchers at the Salk Institute have discovered the molecular structure of CRISPR-Cas13d, a promising enzyme for emerging RNA-editing technology. This breakthrough enables scientists to visualize how the enzyme guides and targets RNA, paving the way for new strategies to treat RNA-based diseases.
Researchers at GC/CUNY have made a major breakthrough in controlling the 3D structure of molecules, enabling the rapid modification of molecular structures used in drug discovery. This new process offers tremendous promise for developing novel drug molecules with medicinal or industrial applications.
Researchers at Insilico Medicine developed an Entangled Conditional Adversarial Autoencoder (ECAAE) that generates molecular structures based on various properties. The generated molecule demonstrated high activity and selectivity against a specific protein, laying the foundation for AI-powered drug discovery.
Researchers at Salk Institute and Arizona State University develop mathematical model to organize odor molecules by frequency of co-occurrence in nature, mapping pleasant directions. This breakthrough enables construction of artificial pleasant odor mixtures, with potential implications for understanding diseases like Parkinson's.
Researchers have designed and synthesized a molecular structure featuring a helical binding pocket that selectively captures xylobiose, a disaccharide class of carbohydrates. The molecule's synthesis and characterization were published in Angewandte Chemie, with the journal editors rating it as 'very important.'
Researchers at Hokkaido University have developed a hybrid catalyst that combines simple rhodium and organic catalysts to selectively produce molecules with high enantiomer selectivity. This technology is expected to assist in rapid and low-cost drug synthesis, particularly for nucleotide medicine.
Researchers at King Abdullah University of Science & Technology (KAUST) have developed the first specific inhibitor for uncontrollable plant pest Striga hermonthica, a parasitic plant affecting global food security. The breakthrough discovery uses a binding molecule to inhibit seed germination.
Researchers at Texas A&M University have synthesized platinum complexes with macrocyclic ring ligands, enabling a 'triple-jump-rope' mechanism with unprecedented molecular motions. The findings hold promise for developing functional molecular machines capable of manipulating matter at atomic and subatomic levels.
Researchers at MIT have developed a machine-learning model that automates molecule design for pharmaceuticals, speeding up the process while producing better results. The model uses molecular graphs to select lead molecule candidates and modify their structures for higher potency.
Researchers at Florida State University develop novel, modular scheme for producing large quantities of 5-8-5 ring structure, opening door to new medicinal compounds. The simplified methodology could aid scientists in understanding potential medicinal properties of synthetic products.
A team at TU Wien has uncovered the mystery behind water molecule structures on iron oxide surfaces, revealing complex bridge-like structures that play a significant role in chemical reactions. These findings have wide-ranging implications for processes such as corrosion and catalyst function, and pave the way for further research into...
The Forschungszentrum Jülich team successfully oriented a platelet-shaped PTCDA molecule as desired using a scanning probe microscope. The molecule is surprisingly stable in the upright orientation and can be used to create new electronic functionalities, such as logic and sensor circuits.
Insilico Medicine introduces a novel deep neural network architecture called Reinforced Adversarial Neural Computer (RANC) for de novo molecular design. RANC outperforms other methods in generating unique structures and passing medical chemistry filters.
The study reveals the atomic structure of tropoelastin, a protein responsible for living tissues' flexibility. Researchers decoded the molecular structure using a combination of molecular modeling and experimental observation.
Researchers at EPFL Sion found that adding specific functional groups, known as chemical caryatids, can enhance the mechanical stability of metal-organic frameworks (MOFs). This is crucial for MOF applications in carbon capture and water filtering.
A team of researchers has developed a method to modify the surface of micro- and nanoparticles with biological molecules, enabling them to serve as both therapeutic and diagnostic agents. The particles can deliver drugs to cancer cells while providing diagnostic information, opening up new possibilities for targeted therapy.
The NSF-Simons Center for Mathematical and Statistical Analysis of Biology at Harvard University will focus on three fundamental questions: molecular networks, sophisticated structures, and organisms' adaptability. The center aims to integrate mathematical, statistical, and engineering approaches with biology.
Researchers have developed molecular nanoswitches that can switch between two states using an applied voltage, enabling the development of novel electro-optical devices. This breakthrough could replace silicon-based components with organic molecules, reducing component sizes in electronics.
The Adversarial Threshold Neural Computer (ATNC) model, a proof-of-concept, combines Generative Adversarial Networks (GANs) with Reinforcement Learning (RL) to generate novel small organic molecules. The GAN-RL architecture demonstrated the ability to produce valid and unique molecular structures, paving the way for future drug discovery.
Researchers discovered that plants create a molecular brace composed of lignin in the detachment zone to facilitate precise shedding. Additionally, they form a protective coating made of cutin on newly exposed cell surfaces, preventing infection and external harm.
Scientists have solved the puzzle of trans 1,3-butadiene's electronic-structural dynamics using ultrafast laser spectroscopy. The research reveals an ultrafast competition between ethylenelike and polyenelike dynamics in butadiene.
Researchers have designed and synthesized molecules that can interact together to assemble complex molecular structures at the nanoscale. By mimicking biological self-assembly processes, chemists can learn new methods of chemical synthesis for nano/micro-structures.
A team of researchers has found that RNA molecules recognize specific 3D shapes to condense into the same droplet. This mechanism is essential for forming RNA-protein condensates that may serve as 'crucibles' for enhancing biological reactions. The discovery provides insight into the formation of liquid droplets in cells and their pote...
Herbert Edelsbrunner, a mathematician and computer scientist at IST Austria, has been awarded an ERC Advanced Grant for his work on topological data analysis. He will develop a unified theory of alpha shapes, wrap complexes, and persistent homology to broaden and deepen the existing field.
Researchers at Dartmouth College developed a smart ink that allows for the creation of shape-changing and color-shifting objects through 3D printing. The innovation uses intelligent molecular systems to transform the structure and function of the printed material.
A team of researchers has observed unexpected rotational motion of hydrogen molecules within a molecular cage, which could lead to breakthroughs in hydrogen storage materials. The study provides fundamental insights into the behavior of quantum-influenced particles trapped in well-defined spaces.
The researchers used cryo-electron microscopy to provide a high-resolution view of the NuA4/TIP60 complex. The structure reveals that Tra1/TRRAP serves as a scaffold for NuA4/TIP60 assembly and that human TRRAP mutations are largely centered on interaction surfaces mediating this assembly.