Articles tagged with Chemical Reactions
Researchers at Arizona State University propose a novel approach to the origins of life, focusing on the 'software' - information content. The study suggests that life is characterized by its unique use of information, providing a roadmap for identifying criteria for emergence. This approach moves away from chemical-based approaches, w...
Researchers have developed a tiny spray of liquid that forms a merged, femtolitre-size Taylor cone, allowing them to study fast biochemical reactions. The device, called dual nano-electrospray, enables scientists to probe solution interactions and complex biomolecules with unprecedented precision.
Researchers discovered a viable community of bacteria surviving without sunlight in Lake Vida's brine, which could have implications for finding life elsewhere. The findings suggest chemical reactions between the brine and sediments generate energy for microbial life.
Researchers have successfully created near-atomically flat silicon surfaces, a breakthrough that could pave the way for new biological and chemical sensors. The team's innovative process uses computer simulations and infrared spectroscopy to create flat surfaces with alternating single-atom-wide rows.
A scientist from Scripps Research Institute has received a grant to develop new chemical reactions for the laboratory preparation of rare natural products, including anticancer and antifungal agents. The project aims to establish a firm scientific foundation for driving medicinal pursuits with improved efficiency.
Researchers created a mouse model reproducing Alzheimer's chemical changes to shed light on spatial memory issues. The study found reduced acetylcholine led to spatial memory deficits and hyperactivity in mice.
The Maillard reaction, discovered by Louis-Camille Maillard in 1912, is a fundamental reaction in culinary chemistry that produces delicious flavors and colors. The reaction also has a dark side, producing potential carcinogens in certain foods.
A new concept for computing uses water droplets as digital information bits, demonstrating rebounding collisions on superhydrophobic surfaces. This enables the development of memory devices and elementary Boolean logic operations.
Researchers have visual evidence that tiny airborne pollutants separate into distinct chemical compositions, with implications for modeling global climate change and predicting air quality conditions. This separation affects the rates of chemical reactions, light reflection and absorption, and cloud formation.
Scientists have discovered a potential cause of Earth's 'icehouse climate' cooling trend, linking it to changes in seawater sulfate content. The study proposes that times of high sulfate concentrations correlate with global cooling, while low concentrations correspond to greenhouse periods.
Researchers from the University of Toronto and University of California Santa Cruz discovered a link between massive gypsurn deposits and changes in seawater chemistry. This connection may have led to global cooling periods, such as during the Eocene epoch, and is supported by data from the Integrated Ocean Drilling Program.
Researchers at Mayo Clinic have developed a novel system to monitor real-time chemical changes in the brain using fast scan cyclic voltammetry and wireless neurochemical sensing. This technology can help treat brain disorders by adjusting neurotransmitter levels, reducing symptoms such as tremors.
Scientists generate attosecond bursts of extreme ultraviolet light, allowing them to measure electron dynamics in real-time. This breakthrough could lead to new technologies, including more efficient solar cells and better drugs.
Researchers found that stressed grasshoppers consume more carbohydrate-rich plants, leading to changes in their excretions and affecting the microbes in the ground. This results in slower degradation of complex organic materials, impacting plant growth and field crop productivity.
Researchers at Yerkes National Primate Research Center found that a single light-shock event isn't enough to make rats afraid of the light, but a repeat of the pairing is. This priming effect could lead to new insights into learning and memory treatments or interfere with troubling memories.
A University of Houston civil engineering researcher has received a $2.6 million grant to develop 'smart' cement that can monitor the health of offshore wells during construction and operation. The new material will retain its piezoresistive nature after hardening, allowing for easy detection and localization of structural problems.
Researchers found that people can intuitively sense changes in body odor composition across the lifespan, with odors from older individuals being rated as less intense and less unpleasant. This ability is driven by specific chemical components, contrary to popular belief about old age odor.
A materials scientist at Michigan Technological University has discovered an exothermic reaction that converts carbon dioxide into solid carbon nitride and lithium cyanamide, a precursor to fertilizers. The process releases significant energy, potentially mitigating climate change by utilizing CO2 instead of fossil fuels.
A new study published in Psyche reveals that different butterfly species exhibit unique foraging behaviors, and the findings may be used to develop effective synthetic lures for understanding pollinators. Researchers used multi-colored landing pads and baits to determine that some butterflies rely on both sight and smell to locate food.
Rapamycin, a widely used cancer and transplant drug, leads to diabetes in 15% of patients due to its effect on muscle cells' insulin signal. Researchers discovered that a single transcription factor, YY1, plays a key role in this process. Mice lacking YY1 are protected from diabetes when taking rapamycin.
Space scientists have quantified galactic cosmic ray bombardment on the moon's surface, causing chemical changes in water ice and regolith. This radiation process creates complex organic molecules and darkens lunar soil, providing insight into the geologic history of the moon.
Researchers have recorded real-time images of two atoms vibrating in a molecule using a new ultrafast camera. The technique, called laser-induced electron diffraction (LIED), allows for the capture of rapid molecular motion and could lead to controlling chemical reactions on an atomic scale.
Researchers at Northwestern University discovered that squeezed polymers can generate significant amounts of energy for chemical reactions. However, they also found that certain polymer-based medical implants release harmful free radicals under moderate pressure, raising concerns about their safety.
Researchers are tapping into photosynthesis to efficiently produce highly valuable products, including biofuels and pharmaceuticals. This innovative approach could lead to a more sustainable future by utilizing sunlight as a renewable energy source.
Researchers at Max Planck Institute develop simple process for artemisinin synthesis using waste product from current production as starting substance. The new method uses photochemistry to incorporate an endoperoxide group into the molecule, producing large volumes of artemisinin under controlled conditions. This could cover global de...
Researchers found fossilized fungal hyphae in subseafloor Eocene basalts, suggesting a non-prokaryotic biosphere. This discovery has implications for our understanding of the deep subseafloor environment.
MSU researchers validate conservation of angular momentum in chemical reactions and suggest using it to control reaction pathways. The discovery could impact fields like molecular electronics, biology, and energy science with new types of chemical reactions.
For the first time, Prof. Hans Jakob Wörner and colleagues have recorded electronic motion during a complete chemical reaction using attosecond spectroscopy on nitrogen dioxide molecules. This experiment reveals details of chemical reaction mechanisms that were not accessible to most previous experimental techniques.
Researchers identified over 600 volatile compounds in cocoa beans, with only 25 essential for the characteristic flavor. They developed a method to recreate the chocolate flavor using these compounds, mimicking its aroma and taste in 'recombinates'. This breakthrough could lead to improved flavors and aromas in chocolates.
Researchers built upon a previous study to demonstrate how naturally occurring sugars and amino acids can form the building blocks of life. They found that adding simple amino acids allowed only the natural, stable form of RNA precursors to be generated.
A new device, called 'Watermark ink,' can identify unknown liquids by exploiting their surface tension and changes in optical properties. The device, which fits in the palm of a hand, has potential applications in quality control tests, contaminant identification, and forensic analysis.
Researchers at University of Illinois developed vascularized structural composites that are lightweight, strong and multifunctional. They achieved this by circulating fluids through tiny channels, creating materials that can regulate temperature, chemistry, conductivity and electromagnetism.
Research by University of Edinburgh found that ultrafine particles from diesel exhaust fumes can impair blood vessel function, increasing the risk of heart attacks and strokes. The study suggests that environmental health measures to reduce emissions could save lives.
New research reveals quantum mechanical tunneling as a driving force for chemical reactions, changing how scientists understand and devise reactions. The discovery has potential applications in materials science, biochemistry, and more.
A new study from the University of Cambridge shows that simple chemical reactions can delay or prevent CO2 from spreading in deep saline rock formations. The findings have implications for carbon sequestration methods and may enable engineers to manipulate reaction strength to enhance storage.
A Purdue University study suggests that drought-exposed leaves may negatively impact soil nutrients by accumulating high levels of tannins. These tannins can interfere with critical enzymes in soil, potentially slowing down decomposition and nutrient cycling.
Catherine Middlecamp advocates for a modern curriculum that prepares students for climate change, pollution, and environmental health. Her teaching approach connects chemistry concepts to everyday life, making it more relevant and engaging.
Scientists have identified a complex chemical reaction responsible for the degradation of Van Gogh's paintings, which involves the reduction of chromium in chrome yellow pigment. The study suggests that shielding affected paintings from UV and sunlight can help slow down the fading process.
UBC food scientists have identified the Maillard reaction as the main source of antioxidants in dark roasted coffee beans. The study found that coffee beans lose 90% of their chlorogenic acid during roasting, leading to increased antioxidant activity.
Fat is linked to distinct DNA chemical changes, which may help explain why obesity increases the risk of chronic diseases like cardiovascular disease and diabetes. The study identified two genes, UBASH3A and TRIM3, with altered methylation patterns in obese individuals.
Researchers have compiled more reliable data, which will help science and industry. The changes include expressing atomic weights as intervals with upper and lower bounds for accuracy.
Scientists have solved the structure of a protein integral to maintaining healthy hearts and nervous systems. The discovery of cystathionine beta-synthase (CBS) may lead to smarter drug design for better understanding of homocystinuria, a genetic disorder affecting cardiovascular and central nervous systems.
Researchers have developed ultra-short X-ray beams that rival those made in expensive synchrotron particle accelerators, opening up new research possibilities. These beams can be used to measure and observe never-before-seen femtosecond atomic and molecular interactions.
Researchers found that water and sulfur dioxide react as ice with surprising speed and high yield at temperatures hundreds of degrees below freezing. This unexpected reaction could revamp current thinking about Europa's chemistry and geology, potentially leading to new discoveries on the moon and other icy bodies.
University of Michigan researchers Kevin Kubarych and Carlos Baiz have achieved the feat of watching the first solvation shell respond to a chemical reaction. They realized that electrons move during chemical reactions, causing vibrational frequencies in surrounding molecules to change.
A team of researchers at Duke and Stanford have found a polymer molecule that can trigger a chemical reaction when stretched, enabling it to build its own repairs. The molecule, called a gem-difluorocyclopropane (gDFC), snaps back smaller than before after stretching, potentially leading to the development of self-healing materials.
A panel of four climate experts will review current state of climate science and discuss observed changes. Chemistry plays a crucial role in resolving the climate change challenge, with significant impacts on water systems, agriculture, human health, and more.
A recent study found Texas petrochemical emissions are down, but still significantly underreported. Researchers took airplane measurements to compare with industry inventories and found discrepancies in pollutant levels. The findings highlight the need for improved monitoring and regulation.
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.
Scientists have developed a new method for synthesizing complex carbohydrates, enabling researchers to study their function in cellular processes and diseases. The method, reported in Nature Chemistry, allows for rapid and controlled synthesis of oligosaccharides, paving the way for the creation of libraries of carbohydrate molecules.
Kudzu's chemical reaction contributes to surface ozone pollution, causing 50% more unhealthy ozone days. The invasive vine's production of isoprene and nitric oxide exacerbates air quality issues.
Researchers at JILA have demonstrated a new tool for controlling ultracold gases and ultracold chemistry by applying small electric fields. The study shows that the electric field spurs a dramatic increase in chemical reactions, with molecules reacting faster when approaching each other head-to-tail parallel to the applied field.
A Purdue University study reveals that high humidity in bathrooms and kitchens can cause vitamins and health supplements to lose their potency. Storing products in dry conditions, below their deliquescence relative humidities, can help maintain their effectiveness.
Physicists at JILA have observed chemical reactions near absolute zero, demonstrating that chemistry is possible at ultralow temperatures. By controlling ultracold molecules' internal states and molecular motions, scientists can study how the molecules scatter or interact with each other quantum mechanically.
Researchers directly observe chemical exchange processes in an ultracold sample of cesium atoms and Feshbach molecules, allowing for controlled study of chemical reactions. This breakthrough opens a new avenue to study diverse chemical reactions using ultracold quantum gases.
Researchers created a self-healing polymer that can extend the lifetime of automotive oils. The 'starfish' polymer, designed by Professor David Haddleton's team, helps maintain engine efficiency and resists mechanical and thermal stress.
Researchers used single-walled carbon nanotubes to study phase transition behavior of argon and krypton atoms. They found that the nanotube's electrical resistance changed when krypton atoms stuck to the surface, and demonstrated sensitivity to individual atom landings.
A new study reveals that aged dental fillings may contain a non-toxic form of mercury. Researchers found that the surface forms of mercury in dental amalgam change over time, with most mercury lost through evaporation or exposure to hygiene products.
Researchers measured the rate of destruction for sulfuryl fluoride, nitrogen trifluoride, and trifluoromethyl sulfur pentafluoride by reacting them with atomic oxygen. The results suggest that these compounds will remain in the atmosphere for long periods, potentially increasing global warming.
Scientists at Georgia Tech have developed Thermochemical Nanolithography, enabling the creation of high-resolution patterns of multiple chemicals on a single chip. The technique uses heated AFM probe tips to induce local chemical reactions, allowing for stable and non-reactive patterns that can be stored for weeks.