Articles tagged with Chemical Reactions
A multidisciplinary team of scientists from OIST has developed a novel tool to monitor biofilm growth, allowing for more efficient testing of replacement antibiotics. By using nanostructured chips and localized surface plasmon resonance, the researchers can observe bacterial cells growing without disrupting their test subjects.
Scripps Research scientists have developed a powerful new strategy for synthesizing molecular skeletons of chemicals used in drugs and other important products. The method combines two chemical reactions, C-C cross coupling and cycloaddition, providing unprecedented flexibility and control over chemical synthesis.
Researchers at Berkeley Lab have discovered a method to make the linkages between COFs much more sturdy, giving them new characteristics and expanding their applications. The technique targets weak links and forms resilient bonds that hold up in harsh chemical environments.
Researchers analyzed ocean sediments to understand Atlantic Ocean circulation changes, finding two episodes of ice melting linked to slow-downs in ocean circulation. The findings have implications for future long-term changes in Earth systems with global climate change.
A team of international researchers has successfully simulated chemical bonds using trapped ions on a quantum computer, marking a significant breakthrough in the development of full-scale quantum computers. This achievement demonstrates the potential of quantum chemistry to unlock new insights into material properties and behavior.
Researchers at NTNU used a combination of techniques to study nearly 100,000 simulation images and identify what triggers water molecules to split. They discovered a small number of variables that describe the causative mechanism, providing detailed knowledge of the reaction.
Researchers have discovered a new reason lithium-oxygen batteries tend to slow down after few charge/discharge cycles due to lithium peroxide buildup in the electrolyte component. The buildup contributes to the loss of power and efficiency of these promising batteries.
Researchers created a new cost-effective instrument combining mass spectrometry and thermal desorption to study uracil's molecular dynamics. The technique provides insights into mechanistic principles that could inform better medicines and optimize photo-dynamic therapies.
Researchers created an atomic movie of molecule reactions, revealing how light stretches bonds to a point of no return. The observation could lead to better understanding of life processes like photosynthesis and vision.
A team of scientists has developed a low-cost and portable method for detecting nerve agents using a combination of Lego bricks, a smartphone camera, and a UV lamp. The new device can distinguish between different classes of nerve agents and provide quick results, which is crucial in preventing mass harm.
Scientists have successfully separated two forms of water, ortho- and para-water, which exhibit different chemical reactivities due to their nuclear spin orientations. These findings were reported in Nature Communications and confirmed by computer simulations.
Researchers at TU Dresden have created a novel approach to synthesize nanographenes and graphene nanoribbons using ball mills, eliminating the need for solvents and reducing environmental impact. This breakthrough could pave the way for more efficient and sustainable production of electronic and solar energy materials.
Researchers found that releasing toxicity information encourages facilities to reduce emissions, especially for chemicals ranked high in hazard levels. This study suggests government agencies can effectively curb industrial use of toxic chemicals through public disclosure alone.
Researchers created a transparent hybrid film combining natural clay minerals and dyes that changes color in response to environmental humidity. The novel mechanism involves the confinement of dye molecules within nanometer-scale gaps, allowing for reversible color change without breaking chemical bonds.
Scientists have successfully connected, merged and arranged artificial cells to form complex tissue structures with different connectivity types. This breakthrough enables the creation of artificial cell networks that mimic biological tissues.
Researchers at the Center for Multidimensional Carbon Materials successfully measured and controlled the temperature of individual graphene bubbles using a single laser beam. The study found that the temperature oscillates with bubble height, allowing for efficient heating of specific regions within the bubble.
Researchers have developed a sophisticated membrane design that boosts water flux by five-fold, surpassing traditional nanofiltration membranes. The new system exhibits excellent water-salt separation ability and maintains high water permeability and selectivity.
A team of Yale University scientists has developed a new approach to glycosylation that is remarkably simple and works in water at room temperature. This process can be generalized to create large numbers of different compounds, making it easier to find the best biochemical probes and therapeutics.
Researchers at Penn State have developed a chemical-free method for etching nanoscale features on silicon wafers. The technique, called tribochemical reaction, uses a scanning probe microscope to remove single layers of atoms from the surface without damaging underlying layers.
A new study implicates a role for light-induced electrical activity in controlling chemical codes in the brain, potentially leading to chemical imbalances underlying mental illness. The researchers found that manipulating brain electrical activity prevented neurotransmitter switching associated with anxious and depressed behavior.
Researchers at Eindhoven University of Technology have developed an artificial leaf that can produce chemicals using sunlight, increasing efficiency by 20%. The 'mini-factory' uses a clever feedback system costing less than 50 euros to automatically adjust production levels.
Researchers bridge the gap between organic and theoretical chemistry by proving the validity of 'curly arrows' in depicting chemical reactions. The study provides a new method to model electronic structure during chemical reactions, connecting traditional depictions with state-of-the-art quantum chemical calculations.
Geneticist Andrew Feinberg highlights the importance of combining epigenetics and genetics research to understand the impact of environmental exposures on human health. He argues that epigenetics can provide valuable insights into gene expression and its relationship with disease.
A team of researchers from the University of Münster has developed a new computer method that enables chemists to plan syntheses with unprecedented efficiency. The method uses deep neural networks and Monte Carlo Tree Search, allowing computers to learn the rules and applications of chemical reactions from literature.
Researchers have developed a new process for creating complex molecules in just a few steps, making it more efficient and environmentally friendly. The method involves C-H activation, allowing for the transformation of a single C-H bond into a functional group, enabling easy combination of two different molecules.
Researchers can now study pollutants and emissions more comprehensively by tracking the changing chemistry of carbon molecules in the air. A new method established by Gabriel Isaacman-VanWertz allows for accurate depiction of a compound's behavior over time.
Researchers have developed the first three-dimensional computer model to represent human metabolic processes. This new tool, Recon3D, integrates structural data on over 4,000 metabolites and nearly 13,000 proteins, allowing for more accurate simulations of metabolic reactions and better understanding of diseases such as Parkinson's.
Using a super resolution microscopic technique, researchers have developed a method to follow chemical reactions in very small volumes, including inside living cells and individual organelles. This breakthrough enables the study of the chemistry of life with unprecedented precision.
The discovery reveals that chemical desorption is more efficient than previously believed, releasing particles and advancing our understanding of star formation in molecular clouds. This finding has significant implications for the study of interstellar chemistry.
Researchers used UV laser photolysis to improve diamond synthesis by suppressing unwanted side products. The technique promotes faster and better-quality diamond growth, opening up new possibilities for material synthesis.
Researchers at Cornell University have developed a new transient electronics architecture that can remotely vaporize itself, offering benefits for data protection and environmental monitoring. The technology uses radio waves to trigger a thermal reaction, releasing chemicals that decompose the electronics.
Researchers at Brown University aim to store billions of terabytes of data in a single flask of liquid using synthetic molecules. The project, backed by a $4.1 million DARPA award, has the potential to enable computation through chemical reactions and improve information densities.
Researchers at Georgia Institute of Technology have identified two urinary chemicals, trigonelline and homarine, that trigger a warning response in mud crabs when exposed to blue crab urine. This finding has implications for understanding ecological balances in marine ecosystems and informing better management of fisheries.
Researchers have developed a robot exoskeleton that can rapidly change its shape in response to chemical or thermal changes, enabling the creation of autonomous micron-scale machines. The graphene-based bimorph technology allows for the production of tiny robots with electronic, photonic and chemical payloads.
Researchers from QUT, KIT, and Ghent University create a light-switchable chemical reaction system to revolutionize chip printing. The system uses visible light to reversibly switch certain chemical processes, potentially making it cheaper, simpler and safer.
Bittner's research aims to optimize pathways for energy conversion, using an algorithm that predicts electronic coupling and nuclear motions. The algorithm, developed with collaborators, can perform thousands of calculations months on a high-performance computer.
Researchers at ETH Zurich generate the world's shortest controlled laser pulse with a duration of 43 attoseconds, allowing for unprecedented time resolution in studying molecular dynamics. This breakthrough enables faster charge transfer and potentially more efficient solar cells.
A research team at Berkeley Lab-led study reveals surprising chemical reactivity in battery components previously considered compatible. They discovered defects and impurities in the oxidized surface layer of magnesium that drive unwanted reactions.
Researchers at Oak Ridge National Laboratory use neutron crystallography to study the location of hydrogen atoms in aspartate aminotransferase, an enzyme vital to metabolism. This study could lead to new antibiotics and medicines against multidrug-resistant diseases.
The innovative method developed by JGU and Evonik Performance Materials GmbH allows for flexible reaction to available electricity supply, eliminating the need for customized electrolysis apparatuses. This breakthrough in electro-organic synthesis enables sustainable production of fine chemicals with minimal environmental impact.
Human activities have significantly impacted the planet, changing global climate, sea levels and biosphere. The Anthropocene Working Group proposes formalizing this new epoch to acknowledge these changes.
Researchers at the University of Manchester have developed a tiny robot that can perform basic tasks such as building molecules using a robotic arm. The robots operate by carrying out chemical reactions in special solutions that can be programmed by scientists.
Researchers found that changes in the Earth's crust led to the accumulation of oxygen in the atmosphere around 2.4 billion years ago. This period, known as the Great Oxidation Event, paved the way for the evolution of complex life on Earth.
UCLA physicists pioneer method to create unique new molecule that violates the octet rule, which describes chemical reactions. The study uses ultra-cold temperatures and tools from physics to observe properties of atoms and molecules, paving way for controlling chemistry.
A new research paper suggests that human cell- and computer-based test methods can help identify chemical respiratory allergens, which cause serious immune reactions. These methods have the potential to speed up testing, lower costs, and reduce animal testing.
A new study reveals that reef fish are less affected by ocean acidification than previously thought. The researchers used a laboratory setting to mimic natural daily changes in water chemistry, which provided fish with a recovery period and reduced their sensitivity to higher carbon dioxide levels.
A team of scientists from ASU and Penn State University has discovered the structure of a reaction center that preserves the characteristics of the ancestral one, providing new insight into the evolution of photosynthesis. This breakthrough sheds light on the process by which organisms harness light energy to drive their metabolism.
Researchers from ETH Zurich and Microsoft Research demonstrate that quantum computers can evaluate complex chemical reactions scientifically relevant results. Quantum computers can potentially calculate the reaction mechanism of nitrogenase step by step, but they will serve as a supplement to classical computers.
Researchers have performed a quantum-mechanical simulation of an ultracold chemical reaction, revealing the underlying chaotic dynamics of the system. The study's findings have important implications for controlled chemistry experiments and technological applications in quantum computing and sensing.
Researchers at Baylor College of Medicine developed a fluorescent probe, RealThiol, to measure real-time changes of glutathione concentration in living cells. The new tool offers insights into the roles of glutathione in aging, health and diseases such as cancer and Parkinson's.
Scientists from the University of Cambridge and Tokyo Institute of Technology found that rangeomorphs, some of the first large organisms, grew up to two meters tall by changing their body shape to extract nutrients. This adaptation allowed them to thrive in a changing ocean environment.
Researchers at Trinity College Dublin have developed 'molecular cages' that can boost reactivity and storage capacity, offering promise for energy conversion and bio-sensing applications. The new material's enormous internal surface area makes it ideal for encapsulating molecules with specific functions.
Scientists from MIPT have created tantalum oxide thin films with controlled oxygen concentration, paving the way for ReRAM technology. The study uses atomic layer deposition to overcome challenges in three-dimensional memory cell stacking.
Scientists use ultra-cold helium droplets to align single molecules with lasers, achieving better precision than traditional gas-phase approaches. This technique enables real-time study of chemical reactions in complex systems.
Researchers developed a new method to study chemical reactions at atomic scale, allowing for real-time observations of the solid-liquid interface. This technique helps improve water purification methods and understand supercapacitor performance.
Researchers at Umeå University have successfully mapped the structure and function of a transient enzyme state using X-ray crystallography and NMR spectroscopy. The study reveals that the transient state is essential for enzyme function and provides clues on how enzymes speed up reactions with incredible specificity and efficacy.
Researchers found that fungal infections like bunch rot and powdery mildew alter the chemical composition of wine, changing its aroma. Bunch rot infection increased fruity and floral notes, while powdery mildew decreased vanilla-like notes, resulting in lower aroma ratings.
A Drexel University team developed a new concrete mix using fly ash, slag, and silica fume to resist chemical erosion from road salt. The research found that these supplementary cement materials can be substituted into the mix with better results when exposed to calcium chloride deicing salt.
Researchers at the Institute of Physical Chemistry of Poland have demonstrated that increasing light intensity can accelerate chemical reactions by several dozen percent. This discovery has implications for various applications, including microscopic imaging techniques and ultra-fast spectroscopy.
Researchers have successfully triggered a chemical reaction in synthetic material that breaks down carbon dioxide into harmless organic materials, producing solar fuel. This process has great potential for reducing greenhouse gases linked to climate change.