Articles tagged with Water Molecules
Researchers at the University of Manchester have clarified the science behind sandcastle building by resolving a century-old mystery. They created artificial capillaries where water vapor can condense under ambient conditions, showing that the 150-year-old Kelvin equation remains surprisingly accurate even at an atomic scale.
Research finds that particulate emissions from cooking can survive in the atmosphere for several days, contributing to poor air quality and human health. The study's findings have significant implications for climate change and city planning.
Researchers at King Abdullah University of Science & Technology created an ultrathin porous membrane using molecular building blocks to separate molecules of different sizes and shapes. The membrane outperformed traditional membranes in filtering organic solvents, with high selectivity and durability.
A new transistor detects glyphosate in drinking water at 0.26 parts per million, outperforming conventional sensors with a detection limit of 0.95 ppm. The device works by adding copper ions that bind to the herbicide molecules, causing a detectable reduction in electric current.
Researchers discover that micron-sized water droplets can spontaneously form hydrogen peroxide, regardless of surface type or temperature conditions. This finding has implications for environment-friendly disinfection technology and atmospheric sciences.
Scientists have observed the transformation between two liquid states of water at extremely low temperatures and pressures. This breakthrough discovery sheds light on water's unusual behavior and has significant implications for various fields, including biology and desalination.
Physicists have long wondered if crystals can form in time instead of space. Now, researchers have successfully created a time crystal in a high-temperature superconductor by applying a laser. This breakthrough establishes a new state of matter and opens up new possibilities for designing quantum materials on demand.
Researchers have developed a hybrid membrane that combines artificial water channels with a polyamide matrix, resulting in higher flow rates and reduced energy needs for seawater desalination. This breakthrough could lead to more efficient and cost-effective desalination processes on an industrial scale.
Certain molecules bind to ice surfaces, halting further growth and acting as natural antifreeze agents. Researchers developed a computational method to model ice binding, which has applications in cryopreservation and climate modeling.
A team of KAUST engineers has untangled the roles of water, hydrophobicity, and environmental factors in water electrification. They found that hydrophobic surfaces carry a negative surface charge, which attracts positive ions and repels negative ions from water.
A new study reveals the precise energies at which secondary electrons produce certain biomolecule fragments when living cells are irradiated with heavy ions. The research could lead to more effective cancer therapies by understanding how biomolecules such as DNA are damaged by ionising radiation.
Researchers have discovered how octopuses can taste objects by touch using their suckers, which include discrete populations of sensory cells. The study found that distinct chemotactile receptors form ion channel complexes that detect specific signals and send them to the nervous system.
Researchers have identified five cubic isomers in a tiny ice cube, including two with chirality, using a novel infrared spectroscopy technique. The study provides crucial information for understanding the formation processes of cloud, aerosol, and ice.
A team of researchers from the University of Tokyo has discovered a feedback system between water molecules that opens up new design possibilities for highly selective membranes. These membranes, which can filter out viruses and other contaminants, could also be used to improve lithium-ion battery performance.
Researchers found that sapphire crystal faces exhibit contact angles far greater than 10°, with the (1-102) face being hydrophobic. This discovery provides insights into intrinsic wettability and its potential applications in materials science and technology.
Researchers have figured out a key step in how molecular Ferris wheels work in yeast proton pumps, providing insight into a fundamental process that could be harnessed to thwart disease. The study uses high-resolution images and computer simulations to confirm the role of water molecules in conveying protons through the membrane.
Researchers at the University of Michigan have developed a self-erasing chip that can store authentication information or secret messages. The chip uses a new material that emits light in specific frequencies, which can be erased with a flash of blue light, making it suitable for anti-counterfeit measures and secure data transmission.
A research team from Friedrich Schiller University Jena has proven that dust particles and ice are mixed in the interstellar medium. This finding suggests complex organic molecules may be present on dust particles, which can contribute to planetary formation. The study also reveals a hidden reservoir of oxygen in solid-state water.
Researchers have made the first-ever measurements of liquid water at extremely cold temperatures, revealing that it exists in two distinct structures that co-exist and vary in proportion dependent on temperature. This discovery provides long-sought experimental data to explain water's bizarre behavior at low temperatures.
Researchers developed a filtration system that combines a polymer membrane with activated carbon to eliminate estradiol in drinking water. The method achieves an efficiency of more than 99%, reaching the European Commission's reference value of 1 nanogram per liter.
New experiments demonstrate the generation and manipulation of free electrons in liquid water using external terahertz fields. The results show that these fields enhance the number of free electrons by up to a factor of 1000, allowing for the transport and localization of charges in liquids.
Scientists analyzed enstatite chondrites, rare meteorites with primitive composition, to estimate the Earth's initial water content. Their findings indicate that the planet's rocks probably contained enough water to supply three times the amount of oceans, with only a small percentage delivered by comets or asteroids.
Researchers detect electron movements in liquid water using photoemission, revealing a delay of 50-70 attoseconds compared to gaseous form. This discovery sheds light on chemical reactions and biological processes such as photosynthesis and DNA damage.
A team of scientists used THz pulses to study the intermolecular motion of liquid water, revealing a hydrogen bond harmonic oscillator model and polarizability anisotropy on sub-picosecond scales. The results provide insights into the transient structure of liquid water and its interaction with solvent molecules.
Researchers at Stockholm University have found that water can align its molecules like a liquid crystal when exposed to laser light. The alignment lasts only for a fraction of a second and is confirmed by both experimental studies and molecular simulations.
Scientists developed a theoretical method to model the interior of ice giants Uranus and Neptune, allowing analysis of thermal and electrical processes. The study provides insights into the planets' geometry and evolution, including the existence of frozen cores and magnetic field generation.
Scientists used dynamic in-situ x-ray diffraction to observe how a crystalline sponge changed shape as it lost water molecules. The study found that one water molecule leaves quickly, causing the crystal lattice to compress and twist, while the other two molecules leave together.
Researchers from Ruhr-Universität Bochum have discovered that water molecules facilitate oxygen dissociation in aqueous solutions, reducing energy costs by 25%. This breakthrough helps explain the high catalytic activity of gold nanoparticles on metal oxides for selective oxidation.
Researchers detected a critical point in water, where two distinct liquid forms exist at low temperatures and high pressures. The finding explains water's unusual properties, such as expanding when cooled and becoming more compressible.
Researchers at Skoltech found a significantly higher concentration of short-lived ions (H3O+ and OH-) in pure liquid water than previously thought. This discovery has far-reaching implications for our understanding of the intricate structure of water, including its role in redox processes, catalytic reactions, and electrochemical systems.
Researchers have overcome the limitation of super-resolution microscopy by combining dSTORM and expansion microscopy, achieving a distance error reduction to just five nanometers. This enables fluorescence imaging with molecular resolution for the first time, allowing detailed insights into molecular function and architecture.
Researchers at the University of Oregon have made significant breakthroughs in enhancing the catalytic water dissociation reaction in electrochemical reactors, enabling the production of hydrogen gas and other valuable chemicals. The discovery provides a roadmap for developing bipolar membrane electrolyzers that can generate protons an...
Researchers discovered a two-layer water network surrounding hydrophobic molecules, with the inner layer being longer stable and more densely packed. This new understanding is crucial for biomolecular recognition and protein folding processes.
Researchers have developed a new photocatalyst that can generate hydrogen from water with high efficiency, using nanoscale metal oxide sheets and a ruthenium dye molecule. The material works under visible light, the main component of sunlight, and has a record-breaking turnover frequency and external quantum yield.
Researchers at UToledo developed a new method to characterize fracking wastewater, revealing the presence of toxic chemicals like atrazine, 1,4-dioxane, and polycyclic aromatic hydrocarbons. The study aims to improve disposal and purification practices for produced water, which can contaminate drinking water sources.
Researchers use X-ray laser to observe water molecules flowing through the oxygen-evolving complex of Photosystem II, shedding light on a key step in oxygen production. The study provides new insights into how protein and water molecules work together to produce breathable oxygen.
Scientists at the National MagLab used a powerful magnet to detect oxygen signals in proteins, revealing that water wires play a more significant role in cellular function than previously thought. This discovery has widespread ramifications for understanding how proteins interact with each other.
Researchers have accurately described the interaction energy among three water molecules for the first time. The study uses advanced spectroscopy and quantum calculations to analyze the intermolecular vibrations of water trimers.
Researchers found that surface-active species significantly impact droplet formation, improving climate model accuracy. By accounting for curved surfaces and accurate thermodynamic models, they reduced discrepancies in predicted nucleation rates.
Scientists have found that hydrate protons on the ice surface are generated through autoionization of water molecules, leading to a significant enhancement in proton activity. This discovery has implications for understanding various phenomena such as charge generation and ozone layer destruction.
Scientists at Tokyo University of Science have synthesized a new thin film that can lower the operating temperature of solid oxide fuel cells. The novel film exhibits high conductivity at room temperatures, enabling potential applications in future power generation systems.
Astronomer Mark Loeffler recreates interstellar space conditions to study homonuclear molecules in ice form. The James Webb Space Telescope will help detect these molecules, allowing scientists to better understand molecular cloud composition and its role in planetary system formation.
Excess electrons can shatter carbon-fluorine bonds in PFAS, breaking them down into by-products that may accelerate the process. The discovery offers a potential method to tackle widespread contamination of water supplies across America.
A new superhydrophobic magnetic sponge developed by Tomsk Polytechnic University and the University of Lille can effectively purify water from oil products. The material is capable of selectively absorbing oil molecules while repelling water, making it a promising solution for water pollution.
Researchers have developed high-resolution images of 'invisible' cell pores, shedding light on their role in regulating water flow and molecule passage. The discovery could lead to new classes of drugs targeting these pores.
Researchers from the University of Geneva have developed a new technique for tying molecules together, resulting in modified mechanical properties. The method uses fatty molecules that self-assemble into knots without losing material, allowing for analysis of changes in mechanical properties.
Researchers at Rensselaer Polytechnic Institute developed a highly effective separation membrane that can convert carbon dioxide into fuel like methanol more efficiently. The membrane's water-conduction nanochannels allow for quick and selective removal of water, enabling the chemical reaction to proceed rapidly.
Researchers used persistent homology and molecular dynamics simulations to study water molecules on graphene surfaces. They found that water molecules form stable polygonal shapes, which evolve into 3D tetrahedral structures after three layers are added. This discovery provides insights into the transition between surface and free water.
Researchers at Goethe University have developed a new NMR method that allows them to follow tiny structural changes in RNA chains in real-time. This breakthrough enables the study of RNA refolding and its role in regulating transcription processes, which are crucial for cellular functions.
Water molecules behave differently on bismuth telluride compared to conventional metals, repelling each other and remaining isolated on the surface. This discovery is significant as it suggests an advantage in applications exposed to typical environmental conditions.
Researchers have observed the ultrafast formation and breakdown of the water ion created when water is exposed to ionizing radiation. This reaction occurs in just 50 femtoseconds and leads to the creation of highly reactive radicals that can damage biological tissue.
Researchers found large atmospheric pockets of water vapour at an altitude of over 80 km, accumulating in unexpected proportions. The capacity for water to escape increases during certain seasons due to the observed supersaturation rates.
Researchers observed the ultrafast proton transfer process following water ionization, creating a hydroxyl radical. The reaction is crucial for nuclear engineering, space travel, and environmental remediation, and its understanding may lead to strategies to suppress radiation damage.
Researchers at Tokyo Tech have discovered an efficient way to convert excess glycerol from the biodiesel industry into dihydroxyacetone (DHA), a valuable chemical. The electrochemical conversion process uses copper oxide as a catalyst, producing DHA while also generating hydrogen through water splitting.
A multidisciplinary team of researchers has developed a novel water filtration process that mimics the human body's efficient water transport system. The new membrane technology shows impressive desalination properties, exhibiting selective salt removal with higher efficiency than current processes.
Chemists at the University of Tokyo have made groundbreaking discoveries about how molecules bind together, using a tiny cube structure to study dispersion forces. The team has found that polarizable atoms can create stronger dispersion forces, leading to increased stability in complex structures and potential applications in drug design.
Researchers found that charged polymers increase viscosity by altering water-water interactions, which is influenced by a nuclear quantum effect. This discovery has fundamental implications for developing new technologies in health, biosciences, materials science, and environmental science.
The study reveals that electrochemical reactions between water and oxygen can control the physical properties of graphene and other two-dimensional materials. This discovery has significant implications for developing flexible displays, high-speed transistors, and next-generation batteries.
Researchers have unraveled the mystery of the Ubbelohde effect by identifying two isotopic effects governing water hydrogen bond formation. The findings reveal that rotational motion and quantum anharmonic coupling play crucial roles in determining bond strength and length.
A team of researchers from the University of Pennsylvania has discovered a crucial link between alcohol molecules and haze formation. Alcohols like methanol reduce particle formation by consuming sulfur trioxide, converting it to more sticky compounds that promote growth.