Articles tagged with Molecular Structure
Scientists measured methanol molecule's radio spectrum in a distant galaxy, finding minimal change in proton-to-electron mass ratio over billions of years. The result confirms fundamental properties of molecules have remained consistent despite universe's evolution.
Boston College researchers create a yolk-shell nanocrystal structure with a porous 'skin' that can filter molecules based on size or chemical makeup, allowing greater selectivity in chemical reactions. The new catalyst exhibits unprecedented control and precision, paving the way for expanded applications of heterogeneous catalysis.
Researchers found that as oil chains lengthened, the transformation occurred at lower temperatures. The team used Raman scattering and multivariate curve resolution to analyze water's subtle changes, finding a new structure when interacting with long-chain oils.
Researchers at NIST have developed a new method to visualize the molecular structure of blended polymers, resolving details at sub-micrometer levels. This technique has important implications for designing industrially important polymers like polyethylene blends used in water pipes.
Researchers have created the first detailed 3D model of the PRC2 protein complex, shedding light on its role in embryonic development and cancer. The model reveals how PRC2 interacts with chromatin and other proteins to regulate gene expression.
University of Alberta medical scientists have made a groundbreaking discovery in understanding the structure of molybdenum, a critical metal in human health. The research reveals two forms of the molecule with distinct functions, providing new insights into diseases such as metabolic and respiratory disorders.
Researchers mapped the importance of enzyme shape and function in rhomboid proteases, finding four main regions important for maintaining shape and at least two regions crucial for function. The study's findings could lead to the development of drugs to treat malaria and other parasitic diseases.
Researchers have elucidated the structure of type III secretion system needles at atomic resolution, revealing similarities in their inner part while surface variability evades host recognition. This discovery enables new insights into pathogen immune evasion and prospects tailored antiinfectives to block needle assembly.
Researchers at NIST create a nanoscale fluidic channel, dubbed the 'nanoslinky,' to control DNA molecule movement and measure its size. The system uses entropophoresis, a phenomenon resembling a Slinky's motion, allowing for separation, concentration, and organization of mixtures.
Researchers at the University of Edinburgh produced a previously unseen uranium molecule, which could help improve nuclear waste clean-up processes. The butterfly-shaped compound is robust and may play a role in forming clusters of radioactive material in waste.
NIST researchers studied the self-assembly of quantum dots using DNA origami, determining critical factors and error rates. They found that simple structures take up to 24 hours to assemble with an error rate of about 5 percent.
Researchers at Scripps Research and Sanford-Burnham Medical Research Institute have determined the 3D structure of the interaction between an immune molecule called TLR5 and a protein that helps bacteria move. This breakthrough provides significant insights into the molecular mechanism underlying TLR5 recognition and function.
Scientists have made new discoveries about the shape and structure of biological molecules, potentially leading to new treatments for neurodegenerative diseases. The research found that two protein channels are similar in structure and function, with one 'unlocking' calcium flows inside cells.
Researchers at TUM develop process to build high-quality polymer networks with strong covalent bonds, resulting in stable and durable molecule carpets. The method eliminates weaving mistakes by correcting bad bonds during self-organization.
Scientists at Scripps Research Institute have created a new class of small molecules with the potential to serve as a rich foundation for drug discovery. The approach combines synthetic chemistry and advanced screening technologies, overcoming molecular limitations associated with current methods.
A new method has been developed to separate enantiomers, which are pairs of molecules with a mirror-inverted structure. The method uses porous molecular organic frameworks (MOFs) to sort molecules, allowing for rapid and efficient separation of enantiomers in pharmaceutical production.
Researchers have successfully tied molecules into a complex pentafoil knot using self-assembly, expanding the understanding of material properties and potentially leading to new materials with improved properties. The knot is composed of just 160 atoms, approximately 16 nanometers in length.
A team of UGA scientists has successfully determined the structure of a glycosaminoglycan proteoglycan for the first time, identifying key sites of sulfation and paving the way for future research on its role in diseases such as cancer.
Researchers at New York University's Department of Chemistry have created a molecular polyhedron, a 13 Archimedean solid that can serve as a cage-like framework to trap other molecular species. The structure was formed by designing the assembly of two kinds of hexagonal molecular tiles using 72 hydrogen bonds.
Researchers have identified a key trigger for Gerstmann–Sträussler–Scheinker (GSS) syndrome, a rare but deadly neurodegenerative disease. The finding has significant implications for the treatment of other neurodegenerative diseases such as Alzheimer
Scientists have identified the molecular structure of proteins enabling bacterial cells to transfer electrical charge, opening the door to efficient microbial fuel cells. The discovery could also lead to the development of microbe-based agents for oil and uranium pollution cleanup.
Researchers developed a novel technique to image single biological molecules in living cells using diamond's nitrogen vacancy defect. This breakthrough could lead to new tools for diagnosing and treating diseases like cancer, with potential to reveal the inner workings of life on the molecular scale.
A new high-performance method has determined the structure of protein molecules in several cases where previous methods failed. This breakthrough aids in fields like nanotechnology, drug design, and disease research by understanding a protein's molecular shape and function.
Researchers have uncovered the key to spider silk's incredible strength and toughness, revealing a serial arrangement of crystalline and amorphous subunits that outperforms random structures. This breakthrough may lead to the design of artificial silk fibers with similar properties.
Researchers deciphered the molecular structure behind spider silk's remarkable mechanical properties, discovering that soft amorphous subunits contribute to its elasticity and crystalline subunits determine its maximal toughness. The study's findings may aid in designing artificial silk fibers with improved performance.
Researchers unveil structure of small molecules by analyzing residual dipolar couplings in partially aligned samples. This new approach provides valuable structural information, even when traditional methods fail.
Researchers at JILA disprove the popular theory that DNA's backbone needs a small gap or loose ends to extend by 70% when subjected to 65 picoNewtons of force. The new study uses a novel test structure to demonstrate that the mechanism behind overstretching is the same for both nicked and intact DNA molecules.
Researchers at Berkeley Lab coaxed polymers to braid themselves into complex structures, mimicking biological materials' hierarchy and precision. The findings could lead to new applications in drug delivery, molecular sensing, and more.
Researchers have successfully created a metal-methane hybrid molecule by inserting metal atoms into methane gas molecules, potentially advancing industrial hydrocarbon chemistry. This discovery could lead to the creation of more complex and valuable products from simple compounds like methane.
Researchers at City College of New York create amphiphilic molecule that forms self-assembled structure responding to temperature changes, resembling nature's own adaptation mechanisms. The discovery opens doors for designing adaptive soft materials that can take cues from nature.
Researchers at the University of Nottingham have successfully built 3-D molecular structures on surfaces using a self-assembly process. This breakthrough could lead to the development of cutting-edge optical and electronic technologies, as well as molecular computers.
A team of researchers has identified how the protein perforin kills rogue cells, which could lead to new treatments for cancer, malaria, and diabetes. The study reveals that perforin assembles to punch holes in cell membranes, allowing toxic enzymes to destroy infected cells.
Scientists have determined the three-dimensional structure of CXCR4, a molecule involved in HIV infection and many forms of cancer. The high-resolution structure sheds light on how CXCR4 functions and could point to ways to control its activity.
Scientists create a synthetic structure that mimics the behavior of PCR enzymes, allowing for highly sensitive detection of small molecules. The new catalysts could lead to advancements in medical diagnostics, forensics, and environmental monitoring.
Researchers have described the effects of messengers on infrared spectroscopy of protonated water clusters, allowing for better interpretation of spectroscopic data. The study reveals unexpected interactions between messenger molecules and cluster structures, enabling more accurate analysis of molecular vibrations.
Researchers at Cornell University have discovered a way to create an organic framework that could lead to economical, flexible and versatile solar cells. The new method uses molecules typically used in blue jean and ink dyes, assembling them into a two-dimensional sheet with high surface area.
A study by Adriano Aguzzi and Christina Sigurdson found that the local structure of PrPC protein influenced prion transmissibility between different species. The researchers identified a molecular switch controlling interspecies prion disease transmission in mice, providing new insight into food safety risks associated with BSE.
Researchers have deciphered the molecular structure of phytochrome, a key 'light switch' in plant growth. The study reveals a twisted area of contact between two units, suggesting that light adjusts its strength and orientation to transmit signals.
Scientists from Scripps Research Institute have developed a novel method to produce molecular structures common to natural molecules, which could accelerate the study and identification of new drugs. The technique enables efficient production of skipped polyenes, shared by vital molecules in human health.
Weizmann scientists trained an electronic system to predict the pleasantness of novel odors, similar to human perception. The eNose achieved high accuracy rates, regardless of cultural background, suggesting a fundamental biological property in odorant pleasantness.
The study reveals that RNA molecules' 3D shapes are dictated by their junctions, similar to how anatomical features define arm motion. The researchers also found that drug molecules interact with RNA in predictable ways, with size being a key factor in determining the preferred orientation.
Researchers develop method to study and control energy transfer pathways in molecules, enabling faster identification of efficient photovoltaic materials. This breakthrough could lead to more efficient and cheaper solar cells.
Scientists have characterized the detailed structure of prions using unconventional X-ray diffraction methods. The results show significant structural differences between natural and synthetic prions, which may explain their infectious behavior.
Researchers have characterized the detailed structure of prions using unconventional X-ray diffraction methods. The study found surprisingly large structural differences between natural prions and synthetic analogs, shedding new light on their infectious behavior.
Researchers at MIT have cracked the code of cement's molecular structure, finding it to be a hybrid with characteristics of both crystalline and amorphous structures. This discovery could lead to the development of more durable and environmentally friendly concrete.
Recent work at SLAC National Accelerator Laboratory reveals two distinct structures in liquid water: tetrahedral and disordered regions. The researchers discovered that these structures exist in 'clumps' made up to 100 molecules, with the temperature affecting their distribution and density.
Researchers at NYU have created molecules with a twist, allowing them to selectively interact with target molecules and catalyze chemical transformations. This breakthrough has significant implications for the development of new drugs and complex chemical structures.
A team of scientists at TUM has successfully determined the three-dimensional structure of αB-crystallin, a key protein that protects against cataracts. The discovery sheds new light on the molecular architecture of this protective protein and may lead to the development of new treatments.
A DuPont-Lehigh University team has developed a DNA-based method to sort and separate specific types of carbon nanotubes (CNTs) from a mixture. The new method utilizes tailored DNA sequences that can recognize individual types of CNTs and purify them with sufficient yield for fundamental studies and application development.
Scientists at Leiden University have successfully developed an artificial leaf that can convert sunlight into fuel and clean energy. The breakthrough, which is the first step in creating an artificial photosynthesis system, involves modifying chlorophyll molecules to resemble the efficient light antennae of bacteria.
Scientists have successfully regulated the formation of G-quadruplexes by influencing the distance and solution conditions. This controlled self-assembly enables the creation of complex structures with unique characteristics.
Researchers discovered the chlorophyll molecules' structure, enabling artificial photosynthetic systems. The chlorosomes contain up to 250,000 chlorophylls and have unique internal structures.
Researchers have detailed the molecular structure of Clostridium difficile's protective 'jacket', a surface layer that helps the pathogen colonize human gut cells and cause illness. Understanding this structure could lead to new treatments, including targeted drugs and vaccines, to combat the deadly superbug.
Scientists develop novel materials for stem cell therapy by combining peptide amphiphiles with hyaluronic acid, resulting in self-assembling sacs that can encapsulate human stem cells and deliver growth factors. The structures also exhibit unique physical properties and can be tailored to release cells at specific injury sites.
Researchers identified key elements of dynein's structure and its winch-like mechanism, correcting some mistaken ideas. Dynein is responsible for transporting molecular cargo within cells, powering movement of sperm and eggs, and helping cells divide.
Scientists have obtained the first 3D images of the Mcm10 protein, which is essential for DNA replication in eukaryotic cells. The structure reveals unique features that allow it to interact with single-stranded DNA and position other proteins on the DNA strand.
Scientists have determined the structures of two important plant viruses, revealing their spiral-shaped structure featuring around nine molecular subunits per turn. This discovery may lead to new ways to protect crop plants from viruses and other forms of damage, as well as engineer molecules to interfere with virus infections.
Researchers at Vanderbilt University have obtained detailed information about the structure of flexible filamentous viruses, responsible for over half of all virus damage. The findings could lead to new ways to protect crops from these viruses and potentially use them as agents of biotechnology.
A new study suggests that processing red tomatoes with heat and fat can increase the absorption of lycopene, a naturally occurring pigment linked to cancer prevention. The researchers found that the bent molecular form of lycopene is more easily absorbed into the bloodstream than its linear form.
The Protein Data Bank has reached a significant milestone with its 50,000th molecule structure archived. The archive now contains vital information for pharmacology, bioinformatics, and education.