Articles tagged with Chemical Reactions
A team of researchers from the University of Maryland has developed a novel way to produce and observe carbenes, a class of highly reactive molecules necessary for life. They successfully formed a carbene called hydroxymethylene (HCOH) by breaking down methanol with pulses of ultraviolet radiation.
Researchers developed Au-BiFeO3 nanocrystals with improved photocatalytic activity, achieving 98% methylene blue degradation efficiency. The nanoparticles' unique localized surface plasmon resonance and electron transfer mechanisms enhance their recyclability and stability.
Researchers at Tokyo University of Science discovered a simple method to increase Euglena gracilis carotenoid content ratio by exposing it to strong red-light irradiation in bonito stock. The approach has potential to enhance the nutritional profile and scalability of this edible microalga.
Chemists develop new reactions using model systems and substrates to demonstrate versatility. A new computer-aided method reduces subjective bias by analyzing real pharmaceutical compounds' complexity and structural properties. This improves data quality and facilitates machine learning applications.
A new statistical-modeling workflow can quickly identify molecular structures of products formed by chemical reactions, accelerating drug discovery and synthetic chemistry. The workflow also enables the analysis of unpurified reaction mixtures, reducing time spent on purification and characterization.
A Scripps Research team has uncovered a simple and inexpensive way to produce quaternary carbon molecules using an iron catalyst. This breakthrough could benefit drug developers by making molecules cheaper and easier to produce at small and large scales.
Researchers at Rice University and the University of Illinois Urbana-Champaign have found that chemical reactions can scramble quantum information, similar to black holes. This discovery could lead to new methods for controlling molecular behavior and improving the reliability of quantum computers.
Vaping additives, particularly vitamin E, can damage the lungs by inhibiting gas exchange and lung stability. The study used Langmuir films to simulate the expansion and compression of the pulmonary surfactant, observing how the additive changed its properties and monitored changes as more were added.
Scientists have applied time-resolved serial femtosecond crystallography (TR-SFX) to study molecular motion in real-time with atomic resolution, revealing three pathways of structural change in a porous coordination network sample. This breakthrough unlocks new opportunities for investigating chemical systems and material science.
Researchers have developed a reliable and efficient computational method to find transition states in chemical reactions, reducing computational costs by 50-70%. The new method outperforms existing methods like Nudged Elastic Band (NEB), achieving high accuracy in identifying transition states in 98% of cases.
Researchers discovered controlled storage affects rice's physicochemical properties, including gelatinization degree and water absorption capacity. The study suggests optimal temperatures can enhance cooked rice quality, offering farmers a practical strategy to minimize pest contamination risks.
Researchers at UNIST have developed a groundbreaking technology that enables the real-time display of colors and shapes through changes in nanostructures. Utilizing block copolymers, they achieved the self-assembly of photonic crystal structures on a large scale, mimicking natural phenomena observed in butterfly wings and bird feathers.
Researchers at UNIST have developed a method to measure nanometer-sized samples within a transmission electron microscope, utilizing nano-thermometers based on cathodoluminescence spectroscopy. The technique offers improved accuracy and spatial resolution compared to conventional methods.
Researchers at Carnegie Mellon University have created a new machine learning model that can simulate reactive processes in diverse organic materials and conditions. The model, called ANI-1xnr, performs simulations with significantly less computing power and time than traditional quantum mechanics models.
Researchers at the University of Texas at Austin are exploring natural catalysts to produce hydrogen gas from iron-rich rocks without emitting CO2. This process, known as geologic hydrogen production, has the potential to significantly increase global hydrogen production and offer a low-carbon emission footprint.
Researchers at Hokkaido University have developed a new category of molecules that can undergo internal rotation on interaction with light, opening possibilities for photochemical switching functions and bioactive molecules. This breakthrough could lead to precisely targeted applications in biological systems and eventual therapeutic p...
Scientists directly visualize the neutral products of hydronium-hydroxide neutralization, observing two electron-transfer mechanisms and a proton-transfer channel. The study provides insights into quantum dynamics of this fundamental reaction.
A UCF-developed technology uses a plasmonic platform to detect the chirality of molecules with high precision, enabling more accurate drug development and therapies. The platform improves upon current methods with sensitivity nearly 13 orders of magnitude greater.
Scientists successfully synthesized pantetheine, a chemical essential for all living things, in lab conditions mimicking early Earth. The compound is crucial for metabolism and may have played a role in the emergence of life on Earth.
A Chinese spacecraft returned a sample of the moon's surface, containing minerals that provide insights into its past. Researchers found high-pressure minerals in the sample, which are unusual in lunar rocks.
Researchers have found that the key step to protein formation can occur in droplets of pure water, where amino acids connect to form peptides with the same 'L' handedness. The discovery resolves a paradox and provides new insights into the early stages of life's chemical evolution.
Researchers created a network of 4.9 billion plausible chemical reactions using blockchain, shedding light on prebiotic molecules and primitive metabolism. The study also demonstrates how blockchain can be used to solve complex problems in science at a lower cost.
Researchers developed a platform combining automated experiments with AI to predict chemical reactivity, greatly accelerating the design process for new drugs. A machine learning model predicts where molecules will react and how reaction sites vary under different conditions, enabling precise tweaks to complex molecules.
MIT researchers have developed a new method to track cell differentiation and study long-term processes like cancer progression or embryonic development. They used noninvasive Raman spectroscopy to monitor embryonic stem cells as they differentiated into multiple cell types over several days.
A recent study published in Behavioural Sciences found that romantic love changes the way our brains react to our partners, making them the center of our lives. The research, led by ANU and UniSA researchers, sheds light on the mechanisms behind romantic love's evolution.
Researchers at UNIST have achieved a significant breakthrough in organic semiconductor synthesis by synthesizing a novel molecule called BNBN anthracene. This derivative exhibits unique properties, including precise modulation of electronic properties without structural changes.
Researchers at the University of Copenhagen have developed a method to remove low-concentration methane from air using UV light and chlorine. The technique has shown promise in reducing greenhouse gas emissions from livestock housing, biogas production plants, and wastewater treatment plants.
The 15th annual horizon scan highlights 15 key conservation issues, including declining invertebrate populations and altering marine ecosystems. The study emphasizes the need for continued innovation in sustainable energy technologies to address climate change.
New research reveals signs before a volcano erupts after tens of thousands of years of dormancy, including changes in magma composition and crystal formation. The study found that water-rich recharge magmas played a key role in triggering explosive eruptions, with amphibole being a critical indicator.
Researchers developed a high-efficiency mercury removal photocatalyst by constructing a Z-scheme heterojunction of g-C3N5 and Bi5O7I. The unique structure enhances the separation and migration of electrons and holes, improving photocatalytic activity.
Researchers analyzed dolomite rocks and found a high proportion of C-13, indicating strong methane formation by microorganisms in water with low sulphate content. The sediment's chemical development is controlled by crater floor cooling and water supply, not climatic changes.
A long-term study found that increased phosphorus availability and salinity are key drivers of change in the lagoon, favoring invasive green macroalga Caulerpa over native seagrass. Reducing wastewater infrastructure and stormwater runoff can help promote seagrass recovery.
Researchers at Xi'an Jiaotong-Liverpool University have developed a sensitive and robust pH sensor that can detect pH variation in just a few microliters of samples. The new sensor uses novel materials and methods to overcome the current method's limitations, which are not sensitive enough or fragile for commercial-scale use.
A new study suggests that reducing greenhouse gas emissions is not enough to combat climate change, with a potential for global warming to reach as high as 4.8°C. Aerosol reduction has offset some warming in the past century, but its decline may now reveal hidden greenhouse gas warming.
Scientists identify pyroglutamination, a spontaneous chemical change, in peptide synthesis, leading to an amyloidal structure and potential implications for neurodegenerative diseases like Alzheimer's and Parkinson's. The process favors aggregation of molecules, forming plaques that interrupt neuronal flow.
Two studies from UChicago chemists offer complementary methods to address the challenge of replacing a carbon atom with a nitrogen atom in molecules. The findings could make it easier to develop new drugs by allowing for more efficient and precise modifications.
Researchers discovered a unique protein in bristle worms that distinguishes between sunlight and moonlight. The protein, L-Cry, disassembles under intense light and forms a stable connection in the dark.
Researchers at Stockholm University have discovered a unique ion transporter, SLC9C1, that activates in response to chemo-attractants, triggering increased sperm motility. This finding provides new insights into the intricate mechanisms governing fertilization.
Researchers at UC Riverside successfully engineered a plant to turn beet red in the presence of a banned pesticide, enabling an environmental sensor without damaging its native metabolism. This breakthrough opens up possibilities for detecting other toxic substances like drugs and birth control pills in water supply.
A team of scientists has successfully caught fast-moving hydrogen atoms within ammonia molecules using ultrafast electron diffraction. They observed the motion of hydrogen atoms and captured the associated change in the molecule's structure as it evolved, providing insights into proton transfers.
Scientists have probed electron dynamics in liquids using intense laser fields, retrieving the electron's mean free path and gaining a deeper understanding of ultrafast processes. The research opens up new avenues for studying liquids and their role in chemical reactions.
Researchers analyzed over 2 million cells from 400 postmortem brain samples to identify cellular pathways that could become new drug targets for Alzheimer's treatments. They found impairments in mitochondrial function, synaptic signaling, and protein complexes, as well as disrupted lipid metabolism.
New research challenges the scientific status quo on nuclear chart boundaries and their sensitivity to temperature. The study found that drip lines, which define maximum protons and neutrons within a nucleus, alter dynamically with increasing temperatures.
Researchers will track how key minerals form in a watershed to build a fuller picture of the processes that allow soil to store carbon as organic matter. Understanding these mechanisms can help develop practices and incentives for a carbon market economy, potentially harnessing Earth's natural mechanisms to combat climate change.
Researchers at Duke University used a quantum computer to measure the geometric phase in light-absorbing molecules, which puts limitations on molecular transformations. This breakthrough allows for direct measurement of a long-standing fundamental question in chemistry, critical to processes like photosynthesis and vision.
Printable electronics have potential in solar power and LED screens but face challenges in scalable manufacturing. Professor Adam Printz is using a new RAPID printing process to examine fundamental characteristics and advance the field.
UC Santa Barbara researchers develop new catalytic process that can convert polyolefins from single-use plastics into valuable alkylaromatics, underlying surfactants in detergents. The improved method reduces production time and energy input, enabling potential commercialization and large-scale use.
Scientists created a unique data process that provides valuable insights into how drugs are processed in the body and their impact on biochemical responses. The approach reveals detailed maps of drug transformation and allows for simultaneous discovery of fate and effects.
A new technique combining ultrafast physics and spectroscopy reveals the dance of molecular 'coherence' in unprecedented clarity. This shows a vibrational effect, rather than motion for the functional part of the biological reaction that follows.
Researchers have developed a highly efficient organometal halide perovskite photoanode that suppresses internal and external losses associated with photoelectrochemical water splitting, enhancing reaction kinetics. The new design achieves an unprecedented applied bias photon-to-current conversion efficiency of 12.79%.
Researchers found that expression of transcription factors contributes to different subtypes of colorectal cancers. The degree of DNA methylation varies across tissue types, with some cancers having high and others low frequency of methylation gains. Studying transcription factor expression may help determine overall survival in patien...
Researchers at UC Santa Barbara have developed a synergistic method that allows for the synthesis of non-canonical amino acids, which are important for therapeutic purposes. The process shortens existing multi-step methods by 3-5 steps and provides stereoselective chemistry.
Researchers at Sahmyook University have found that sub-200-nm nanobubbles exhibit remarkable stability under diverse conditions, including temperature changes and physical impacts. The study's findings suggest potential for real-life applications in various fields, such as pharmaceuticals and water treatment.
A new method for polyurethane synthesis without isocyanates was developed by Kobe University and AGC Inc. using fluorinated compounds, enabling the creation of highly elastic, wear-resistant, and durable polyurethanes with improved environmental sustainability.
The team created a thermocell using a hydrogel that reacted to temperature changes, converting latent heat into electricity. This breakthrough supports the idea that various materials can be used for thermoelectric conversion, potentially reducing reliance on other energy sources and improving cooling systems.
A study led by the University of Konstanz warns that human-induced salinity changes could have devastating impacts on marine organisms and ecosystems. Salinity is a critical factor in many metabolic processes, and its effects are often underestimated due to its complex interactions with other physical and chemical properties.
Prof. Dr. Marta Litter takes over as Editor-In-Chief of Journal of Photocatalysis, bringing her extensive expertise and experience to lead the journal into a new era of excellence. Her research on heterogeneous photocatalysis and iron-based nanomaterials has led to over 250 scientific publications.
Researchers at WVU's forensic lab discovered how organic and inorganic compounds in gunshot residue differ in their persistence on surfaces and transfer. This breakthrough allows crime scene investigators to distinguish between 'greener' and traditional ammunition, enabling faster and more informed decisions at crime scenes.
Researchers at the University of Colorado Boulder have developed a new way to recycle polyethylene terephthalate (PET) plastic using electricity and chemical reactions. In small-scale lab experiments, PET was broken down into its basic building blocks, which can be recovered and potentially reused to make new plastic bottles.
Researchers from Hokkaido University developed a centralized, interactive platform to explore and analyze chemical reaction pathways. The Searching Chemical Action and Network (SCAN) platform utilizes AFIR calculations to provide an interactive reaction pathway map that can be searched and viewed.