Articles tagged with Water Molecules
Researchers at Caltech have developed a method to link magnetic resonance imaging signals to gene expression in cells, allowing for non-invasive monitoring of disease. The technique uses aquaporin reporter genes to visualize gene expression in living tissues, with potential clinical translation.
A research team analyzed PFIA membrane samples using infrared spectroscopy to understand water retention. They found that PFIA is better at managing water in low humidity conditions, retaining it through a hydrogen-bonded network. This improvement is crucial for further optimizing membranes and extending their operational area.
Researchers successfully separate graphene from metal growth substrates using a novel transfer method. The study reveals the role of graphene nanoribbon edges in weakening the pre-elongated O-O bond at the graphene-Cu interface.
Researchers found that ice surface melts in layers, with the first layer melting at -38° C and the second at -16° C. The team also discovered a distinct spectroscopic response between the quasi-liquid layer and supercooled water.
Researchers at Oregon State University have isolated metal-oxide clusters in water, allowing for precise control over atomic growth. This breakthrough enables the creation of high-performance materials for energy applications.
Researchers have finally captured water molecules passing excess charges, revealing the Grotthuss mechanism. This process is crucial for understanding water's behavior in biological and industrial settings.
Researchers at Yale University have made a major breakthrough in understanding how water conducts electricity, revealing a fundamental mechanism found in biology and chemistry. By capturing the structural changes in water molecules, they were able to demonstrate a precise process known as the Grotthuss mechanism.
Researchers at MIT discovered that water can freeze solid even at high temperatures in carbon nanotubes, raising the freezing point by tens of degrees. This unexpected finding may lead to new applications such as ice-filled wires with unique electrical and thermal properties.
Researchers have visualized the reaction of water molecules forming oxygen in plants, paving the way for studying this process step-by-step. This breakthrough could lead to developing technology to produce hydrogen gas from solar energy, mitigating climate change.
Scientists have discovered that water exhibits two distinct states at a temperature range of 40-60 degrees Celsius, which affects its physical properties and behavior. This finding could lead to breakthroughs in understanding protein folding and disease mechanisms related to Alzheimer's and CJD.
A team of Russian researchers used dynamic light scattering and phase microscopy to demonstrate the existence of stable nanodroplets of tetrahydrofuran (THF) in aqueous electrolyte solutions. The research developed a new theory explaining the spontaneous generation of heterogeneous nanoparticles due to 'twinkling' hydrogen bonds.
Researchers have discovered a huge magmatic lake, 15 kilometers below a dormant volcano in Bolivia, which could help explain why and how volcanoes erupt. The find suggests that similar bodies of water may be 'hiding' under other volcanoes.
Researchers have proved the existence of spin-spirals in a quantum liquid, where neighboring spins fluctuate collectively as spirals. This phenomenon, known as a 'spiral spin-liquid', was observed using polarized diffuse neutron scattering on an instrument at Forschungszentrum Jülich.
JILA physicists identified a long-missing piece of the puzzle of fossil fuel combustion contributing to air pollution and a warming climate. They observed a key molecule that appears briefly during a common chemical reaction in the atmosphere, revealing the reaction mechanism and quantified product yields.
Recent findings from the 1976 Viking mission and ongoing research suggest that microbial life on Mars is a possibility worth exploring. The presence of water, complex organic molecules, and methane in the Martian environment support a biological explanation for the results of the Viking Labeled Release experiment.
Researchers at the University of Warwick have developed a new process for making polymers that can be tailored to specific properties, enabling the creation of stronger and more effective products. This breakthrough has far-reaching implications for industries such as medicine, mobile phones, computers, and clothing.
A new method of micron-scale surface chemical patterning was developed at UCSB, allowing for the creation of engineered surfaces with patterned polymer brushes. This technology reduces processing time and adds versatility to design, making it suitable for industrial applications.
Researchers successfully confine individual H?O molecules within nanosized cavities in beryl crystals, exhibiting ferroelectric properties. This discovery could have implications for various fields, including biology, chemistry, and geology.
Researchers at FAU have made a significant break-through in producing defect-free graphene directly from graphite at low costs. This achievement paves the way for advancements in semi-conductor and sensor technologies.
A new study has discovered that fatty acids on water droplets react with sunlight to form organic molecules, challenging conventional wisdom. This process could significantly impact local ozone and particle formation, affecting climate, air quality, and health.
Researchers create a self-healing fabric coating using squid proteins, allowing damaged areas to repair themselves. The coating has potential applications for everyday clothing and as a protective barrier against chemical and biological warfare agents.
A Stanford-led study of nearly 50,000 active-duty U.S. Army soldiers between 2011 and 2014 found no significant increase in mortality among those carrying sickle cell trait, contradicting earlier assumptions.
Researchers identified a limit where dehydration kills cells due to trehalose network rigidity and mechanical force. The study suggests a new working hypothesis for cell injury during dry preservation.
Scientists at TUM have discovered a plant-inherent water-conservation strategy that enables plants to absorb carbon dioxide while minimizing water loss. By activating this mode, plants can preserve moisture in the ground for later use during droughts, potentially increasing crop yields with limited water availability.
Scientists have made a groundbreaking discovery that water molecules play a crucial role in controlling protein motion. The study reveals that proteins rely on water to fold and function correctly, with water molecules modulating protein fluctuations at ultrafast time scales.
Scientists have developed two new molecular catalysts that can drive the key oxygen-oxygen bond-formation step in water oxidation, a crucial process for artificial photosynthesis. These ruthenium complexes enable faster and more efficient water oxidation, potentially leading to the creation of clean fuels from solar energy.
Researchers at Oak Ridge National Laboratory discovered a new state of water molecules exhibiting quantum tunneling behavior under ultra-confinement. This phenomenon is unmatched by any known gas, liquid, or solid states, with implications for understanding thermodynamic properties and behavior in confined environments.
Researchers create a quantum simulator to study novel phase transitions resulting from energetic three-way battles between interaction energy, motional energy and long-range interaction.
Researchers at EPFL found that a single ion can influence millions of water molecules, causing them to align in a specific direction. This effect, previously observed but unexplained, is now linked to the ion-induced stiffening of the bulk hydrogen bond network.
Carbon nanotubes as small as eight-tenths of a nanometer in diameter can transport protons faster than bulk water. Researchers validated a 200-year-old mechanism by creating one-dimensional water wires that allow for enhanced proton conductivity.
Researchers discovered that altering one atom in a natural inhibitor, InsP6, increases its ability to neutralize toxins by 26-fold. The study highlights the importance of water and hydrogen bonding in molecular interactions.
Advanced theoretical modelling reveals cubosomes' internal structure may be much more complex than thought. Cubosomes, with regular networks of channels filled with liquid, have varying internal structures despite identical external appearance.
Researchers develop a new way to encapsulate fragrance molecules, slowing down their release and creating longer-lasting scents. The technique uses microfluidic and bulk emulsification, resulting in uniform microcapsules that control shell size and structure.
Researchers from Okinawa Institute of Science and Technology Graduate University developed a method to create ordered crystal-like structures from micelles using shear flow, enabling faster drug discovery and material sciences applications. The technique involves adding external shear flow to induce controlled crystallization at ambien...
Scientists have created a material that turns fluorescent when detecting explosives in its vicinity. This discovery could lead to improved e.g., airport security measures. The new material consists of molecules held together by weak bonds, which are easily influenced by their surroundings and can be used to detect explosives.
Researchers used molecular dynamics simulations to study supercritical water, revealing differences in hydrogen bond networks between three states: liquid water at room temperature, high-density and low-density supercritical states. The study aims to interpret experimental results using terahertz spectroscopy.
Water molecules on the surface of perovskites exhibit unusual behavior, where they split into two parts but continue to interact through weak hydrogen bonds. This interaction causes the OH group to circle the hydrogen atom like a dancer spinning on a pole, a phenomenon predicted by theory and confirmed through experiments.
Researchers have identified new, potentially toxic molecules created by cooking with chloraminated tap water and iodized table salt. Limiting cooking time and temperature, using fortified salt instead of iodide, can minimize their formation.
Mirabbos Hojamberdiev, a senior researcher from Uzbekistan, has won the 2015 Atta-ur-Rahman Prize for his innovative work on producing hydrogen from water using inorganic crystals under visible light. His research aims to develop sustainable energy sources and reduce greenhouse gas emissions.
Researchers at Princeton University have predicted a new phase of superionic ice with unusual conductivity properties. The P21/c-SI phase occurs at high pressures beyond giant ice planets, offering insights into the material's behavior.
Researchers have identified a new way for molecules to move across graphene surfaces, allowing for faster and more controlled motion than previously observed. This discovery opens up possibilities for industrial applications in improved sensors and filters.
A team of researchers at Technical University of Munich has found a way to repair defective mucins, which are key components of mucus. The repair mechanism involves replacing lost sugars with synthetic molecules, restoring the mucins' lubricative ability and paving the way for new treatment strategies.
Scientists have found that local structures in liquid water persist for longer than a picosecond, contradicting the general perception of water as a solvent. This discovery was made using ultrafast vibrational spectroscopies and has significant implications for understanding chemical and biological reactions on Earth.
Researchers have created a way to detect ortho-para conversion in water, allowing for the study of spin isomers at the single-molecule level. By confining single water molecules in carbon cages, they can observe the transformation without hindrance.
Researchers from Forschungszentrum Jülich create a comprehensive phase diagram that describes the material properties of colloids based on their structure and concentration. The study finds that the interaction length, which determines the solubility of the colloid solution, can be tuned to achieve specific macroscopic properties.
A team of scientists has discovered a method to produce valuable organic molecules from calcium carbide, a previously overlooked small molecule. The process eliminates the need for acetylene gas, a hazardous substance, and offers a safer, more sustainable alternative.
The study provides insight into the mechanism of water transitioning from a liquid to a crystalline solid. It also explores the origin of two different crystalline shapes that ice can take at ambient pressure, shedding light on why cubic ice is favored over hexagonal ice during initial stages of nucleation.
Researchers have developed a second-generation synthetic water channel that improves on earlier attempts to mimic natural aquaporins. The peptide-appended pillar[5]arenes (PAP) membranes are more stable and easier to manufacture, making them suitable for highly efficient water purification membranes.
A study led by Dr Seishi Shimizu shows that sugar affects the taste of hot beverages by interacting with caffeine molecules at a molecular level. The research found that sugar molecules bind to water, reducing the aggregation of caffeine molecules and resulting in less bitterness.
A global strategy for preventative water sample analysis has been developed, utilizing a comprehensive database of 8,000 substances. This allows laboratories to identify previously unknown molecules faster through non-target screening technology, enabling quicker response to potential waterborne risks.
Researchers with Berkeley Lab have characterized the hydration structure of carbon dioxide gas dissolved in water, revealing its role in forming carbonic acid and bicarbonate. The study uses X-ray absorption spectroscopy and molecular dynamics simulations to provide a detailed understanding of this critical chemistry.
The Rosetta spacecraft's ultraviolet instrument has made a surprising discovery about Comet 67P/Churyumov-Gerasimenko, revealing that electrons near the comet's surface break up water and carbon dioxide molecules, not solar photons. This finding fundamentally transforms our knowledge of comets.
Researchers have developed a process to repair leaks in graphene membranes, filling cracks and plugging holes using chemical deposition and polymerization techniques. The team created tiny, uniform pores in the material, allowing only water to pass through, resulting in high flow rates and efficient filtration.
Hot vents on the seabed may have spontaneously produced organic molecules essential for life, according to a new study. The surfaces of mineral particles inside hydrothermal vents exhibit chemical properties similar to enzymes, allowing them to create simple carbon-based molecules like methanol and formic acid.
Researchers at Caltech have developed a device called a frequency comb to detect terahertz waves, allowing for precise measurement and identification of molecules in space. The device can measure thousands of frequencies simultaneously, enabling scientists to analyze the chemical fingerprints associated with various molecules.
Scientists found small square crystals of ice at room temperature in a transparent nanoscale capillary made from graphene, which allowed them to see individual water molecules. The researchers used computer simulations to find that thin layers of water can form square ice independently of the material's chemical makeup.
Scientists from Ruhr-University Bochum successfully isolate and analyze the fluorenyl cation, a prototype of antiaromaticity, at extremely low temperatures in water ice. This breakthrough enables standard spectroscopic analysis of antiaromatic compounds for the first time.
Researchers have discovered holes in the valence bands of nanodiamonds when they are dispersed in water, but not on a solid-state substrate. This discovery suggests that electrons at the surface of nanodiamonds can donate to surrounding water molecules, potentially influencing their chemical and catalytic properties.
The study reveals how polar substances nearby can change the interaction between nonpolar hydrophobic groups, allowing for controlled adhesion or repulsion in water. This discovery may lead to new designs of molecules with useful functions in water-based applications.
Researchers at Berkeley Lab have observed the molecular structure of liquid water at a gold surface under different charging conditions using XAS. The team developed a method to determine the arrangement changes of molecules depending on the voltage, shedding light on battery performance and materials science.