Oxidation
Articles tagged with Oxidation
FAU review: Obesity and Alzheimer’s linked by disease-driving metabolic pathways
A review from Florida Atlantic University links obesity to Alzheimer's disease through disruptions in metabolism, highlighting the importance of mitochondrial function and gut-brain axis balance. Early detection and whole-body prevention may become possible through monitoring metabolic health.
Catalyst design enables efficient biomass upgrading under ambient conditions
Researchers developed a platinum-based catalyst supported on oxygen-vacancy-rich cerium oxide (Pt/CeO2–Vo) to enhance hydrogen activation. The catalyst achieved a pyrrolidone yield of 95.2% within one hour, with high formation rates and excellent stability.
Selective oxidation of 3-hydroxypropionic acid to malonic acid over Pd/C: Mechanistic and kinetic study
Researchers at University of Wisconsin-Madison develop a systematic study for sustainable production of malonic acid via oxidation of 3-hydroxypropionic acid with a Pd/Carbon catalyst. The kinetic model validated the network, displaying excellent agreement and providing insight into conditions that maximize MA production.
New insights reveal how advanced oxidation can tackle emerging water pollutants
Researchers provide a comprehensive framework for removing emerging contaminants from wastewater through advanced oxidation processes. Key findings highlight the importance of understanding reaction pathways to optimize treatment systems.
Giant resistivity reduction in thin film a key step towards next-gen electronics for AI
Researchers developed a new atomically layered material that reduces resistivity by five orders of magnitude when oxidized, exceeding similar non-layered materials. The team discovered a synergy between oxidation and structural modification driving dramatic changes in physical properties.
Game-changing heat shield to revolutionize aerospace manufacturing with long-life engines
Researchers at Hanbat National University have developed a game-changing heat shield technology that provides dual-layer protection for high-temperature alloys. The sequential B-Si coating technology allows these alloys to withstand extremely high temperatures, potentially transforming the aviation industry.
Laser can transform complex semiconductor properties instantaneously!
Researchers developed a new technology that converts titanium oxide semiconductors into p-type semiconductors using just one laser process. This Laser-Induced Oxidation and Doping Integration (LODI) technology can simultaneously execute oxidation and doping, drastically shortening the traditional complex process.
Taming the “bad” oxygen
Researchers at ISTA have discovered a way to tune singlet oxygen, a highly reactive ROS that causes cell damage and degrades batteries. By controlling the pH inside mitochondria, they can produce more 'good' triplet oxygen and reduce the production of 'bad' singlet oxygen.
Some plants can make their own fertilizer with this one weird trick. Scientists say they learned it more than once.
Researchers found that bean plants and other species evolved a predisposition for the symbiosis at least three times, supporting a long-standing theory. This biological trick allows plants to access atmospheric nitrogen, boosting crop yields.
One catalyst, two reactions: Toward more efficient chemical synthesis
Researchers develop redox-adaptive auto-tandem catalysis using cerium to perform multiple reaction steps in a single container. This method reduces overhead and energy requirements, leading to lower costs and reduced chemical waste.
Cleaner, cooler, and cheaper: Green chemistry gets a low-temperature oxidation breakthrough
Researchers at Nagoya University developed a catalyst system that converts alcohols to valuable chemical products at lower temperatures using safer iodine compounds. The new system eliminates toxic heavy metal waste, cuts reaction temperatures by over half, and reduces energy costs.
Sun exposure changes chemical fate of littered face masks
Face masks degrade into nanoplastics under sunlight, changing their chemical nature and affecting ecosystems. Researchers found that exposure to sunlight is required for the formation of manganese oxide on plastic particles, altering their interaction and transport in the environment.
New play in the chemical-reaction playbook uncovered
A team of Penn State researchers has discovered a fundamental reaction in transition metal chemistry that can proceed through a different order of events, achieving the same outcome. This finding raises questions about whether this new pathway has been occurring all along and potentially opens up new avenues for chemical design.
Study: Iron plays a major role in down syndrome-associated Alzheimer’s disease
A USC study found that high levels of iron in the brain contribute to cell damage and oxidative stress, accelerating Alzheimer’s symptoms in individuals with Down syndrome. This connection could lead to targeted treatments and improved outcomes for those at risk.
A fresh new way to produce freshwater: sonicated carbon nanotube catalysts
Researchers at Tohoku University have developed a novel oxidation process using sonicated carbon nanotubes to remove industrial and municipal pollutants from contaminated water. The nonradical pathway achieves unprecedented removal rates within five minutes, targeting distributed water sources.
A smarter way to make sulfones: Using molecular oxygen and a functional catalyst
Researchers from Institute of Science Tokyo developed a novel catalyst that efficiently produces sulfones at low temperatures, achieving high selectivity and reducing precious metal consumption. The new SrMn₁₋xRu_xO₃ catalyst offers significant advantages over conventional systems, making it suitable for various industries.
A new method identifies rancid hazelnuts without removing them from the bag
Researchers at URV develop system to monitor oxidation of hazelnuts using hyperspectral camera, confirming atmosphere and light exposure as main causes of oxidation. The method allows for quality standards to be set and improves packaging techniques.
Trawling-induced sediment resuspension reduces CO2 uptake
A study found that sediment resuspension triggered by trawling and natural processes releases significant amounts of CO2 into the atmosphere through pyrite oxidation. The research reveals that protecting sensitive seafloor areas with fine-grained sediments is crucial to maintain the region's carbon sink capacity.
Pennington Biomedical Research Center investigates tirzepatide's role in weight loss and metabolic health
Researchers at Pennington Biomedical Research Center investigated tirzepatide's effects on weight loss and metabolic health. The study found that tirzepatide decreased calorie intake and increased fat oxidation, leading to significant weight loss. However, the drug did not decrease the slowing down of metabolic rate usually observed wi...
Chinese researchers boost efficiency of direct methanol fuel cell catalysts
Researchers developed a new ultrafine platinum-based high-entropy alloy octahedra catalyst that enhances methanol oxidation reaction activity and durability. The senary alloy outperformed ternary alloys and commercial platinum-on-carbon catalysts in terms of performance, offering a promising advance for direct methanol fuel cells.
New research offers deeper insight into the body’s defense against harmful hemoglobin
Researchers at Aarhus University have mapped the precise structure of CD163 bound to haptoglobin-haemoglobin complex, providing unique insight into its function. This breakthrough connects earlier observations and opens up opportunities for studying the evolution of CD163's structure and interaction with other proteins.
New sensor could help prevent lithium-ion battery fires and explosions
Researchers have developed a new sensor to detect hazardous gas leaks in lithium-ion batteries, which could prevent catastrophic failures and enhance the reliability of battery-powered technologies. The sensor detects trace amounts of ethylene carbonate vapour, targeting potential battery failures before they escalate into disasters.
Antioxidant-enzyme Interaction in non-communicable diseases
The review explores how antioxidant-enzyme interactions contribute to the development of non-communicable diseases, including cardiovascular disorders and cancer. Emerging therapeutic strategies harness these interactions to manage NCDs, offering potential benefits through dietary and pharmacological interventions.
The secret to robust and reversible underwater adhesion: The answer lies in epidermal growth factor (EGF) domain
A POSTECH research team found that EGF/EGF-like domains interact with GlcNAc-based biopolymers to achieve strong underwater adhesion without oxidation, leading to durable and reversible bonds.
Turmeric: A promising supplement for the relief of muscle inflammation following vigorous exercise
Researchers found that consuming moderate amounts of curcumin can facilitate muscle recovery and alleviate pain following strenuous physical exercise. The study also confirmed curcumin's antioxidant and anti-inflammatory properties in the context of sports, with benefits including reduced muscle damage and inflammation.
Novel method detects biological oxidant derived from CO2 in cells
Researchers at the University of São Paulo have discovered a way to detect peroxymonocarbonate, a potent oxidant derived from CO2, in human cells. The novel method uses fluorescent molecular probes and has implications for understanding the impact of high CO2 levels on human health.
Researchers achieve efficient electro-oxidation of glycerol to formate under room temperature
A new Cu-doped NiCo alloy catalyst has been developed for efficient electro-oxidation of glycerol to formate, achieving high selectivity and activity at room temperature. The catalyst reduces the energy barrier and increases the Faraday efficiency for formate production.
Turning glycerol into gold: a new process makes biodiesel more profitable
Researchers at Tokyo Institute of Technology developed a highly selective and efficient glycerol electrooxidation process that converts waste into high-value three-carbon compounds. Higher borate concentrations improved selectivity for these products, reducing the need for additional processing.
Dialyl-sulfide and trans-chalcone prevent breast cancer by targeting SULT1E1 and HIF1a-MMPs
Researchers have discovered that dialyl-sulfide and trans-chalcone can prevent breast cancer by targeting SULT1E1 and HIF1a-MMPs. These compounds neutralize oxidative stress and induce the expression of SULT1E1, leading to decreased HIF1a and MMP production.
New study supports stable mantle chemistry dating back to Earth’s early geologic history and over its prodigious evolution
Researchers analyzed rocks collected from seafloor, finding they date back to at least 2.5 billion years ago and have retained a stable oxidation state since then. The discovery provides new evidence on Earth's geologic history and sheds light on the planet's evolution.
Nitrite-driven anaerobic ethane oxidation
A novel genus, Candidatus Alkanivoras nitrosoreducens, is described as potentially performing nitrite-driven anaerobic ethane oxidation. The study reveals a prospective fumarate addition pathway for anaerobic ethane oxidation and a complete denitrification pathway for nitrite reduction.
From waste to value: The right electrolytes can enhance glycerol oxidation
Researchers have found that choosing the right electrolyte significantly increases the efficiency of the glycerol oxidation reaction in PEC reactors. The study used a PEC cell with photoanodes made of nanoporous bismuth vanadate and tested acidic electrolytes, finding that certain cations and anions improve photocurrent, stability, and...
Metal alloys that can take the heat
A multidisciplinary research team has developed a predictive tool for designing complex metal alloys that can withstand extreme temperatures. By analyzing the degradation of high-entropy alloys, the team discovered universal rules that can predict oxidation behavior in these alloys.
Overview of eurotium cristatum and its fermentation application in tea
The fungus secretes enzymes that transform tea chemical components through oxidation, degradation, and condensation reactions. This results in high-quality fermented teas with enhanced flavor and health benefits.
Towards next-gen functional materials: direct observation of electron transfer in solids
Researchers at Tokyo University of Science have developed a novel approach to directly observe electron transfer in solids using X-ray crystal structure analysis. This breakthrough could lead to advancements in energy storage, nanotechnology, and materials science research.
Microrespirometric validation of a two-stage process for polyhydroxyalkanoates production from peanut oil and propionate with cupriavidus necator
This study validates a two-stage process for producing polyhydroxyalkanoates (PHA) using peanut oil and propionate with Cupriavidus necator. The findings show that peanut oil is the most beneficial carbon source, leading to increased biomass and PHA production.
Could corrosion actually be helpful? New 3D printing technique might turn oxidation into an advantage
Researchers at Binghamton University have developed a new 3D printing technique that uses nanotubes to reinforce additively manufactured metals, making them stronger in corrosive environments. The technique has the potential to revolutionize the field of metal manufacturing and increase U.S. competitiveness.
Longer sprint intervals can improve muscle oxygen utilization compared to shorter intervals
Researchers found that longer sprint interval training protocols, such as SIE20, outperform shorter protocols like SIE10 in increasing peripheral oxidative metabolism. This study's findings suggest that less-than-15-minute exercise regimens can provide significant health benefits.
Obesity-induced cognitive decline: Role of brain oxidation and tocotrienols
Researchers investigate the neuroprotective effects of tocotrienols in alleviating obesity-induced cognitive decline. The study found that T3s treatment improved cognitive function and mitigated oxidative stress in mice fed with a high-fat, high-sucrose diet.
Fuel Cells: Oxidation processes of phosphoric acid revealed by tender X-rays
Researchers have decoded the multiple oxidation processes at the platinum-electrolyte interface in high-temperature PEM fuel cells using tender X-ray studies. The results show that variations in humidity can influence some of these processes to increase the lifetime and efficiency of fuel cells.
Investigating the surface extraction of platinum catalysts in alkaline media
The study elucidates the role of interfacial cations in oxide formation on Pt surfaces, suggesting that selecting optimal cations can control surface oxidation and improve electrode durability. This finding is crucial for developing high-performance and stable Pt electrocatalysts for next-generation electrochemical devices.
Unlocking the impact of solvents on catalytic C–H bond oxidation by copper(II)–alkylperoxo complex
Researchers have developed a copper(II)-alkylperoxo complex that can selectively oxidize unactivated alkanes, showcasing exceptional reactivity and paving the way for sustainable technology. By manipulating the solvent environment, the team uncovered the unique properties of their catalyst.
A new manganese-fluorine catalyst with exceptional oxidizing power
A research team has synthesized a cutting-edge manganese-fluorine catalyst with exceptional oxidizing power, capable of extracting electrons from compounds. The catalyst facilitates efficient electron loss from toxic toluene derivatives, marking a significant breakthrough in catalytic research.
Nanoscale topcoat can turbocharge supported gold nanoparticle catalysts
Researchers at Tokyo Metropolitan University developed a method to coat gold nanoparticles on silica with a single nanosheet of mixed metal oxide, boosting their catalytic activity. The new catalyst showed significant improvements in converting carbon monoxide to carbon dioxide, outperforming existing methods.
Efficient oxidation of hydrophobic aromatic organic substrates in water
The team developed a 'catch-and-release' mechanism to oxidize hydrophobic compounds, selectively and efficiently producing hydrophilic products under mild conditions. This breakthrough enables the selective two-electron oxidation of anthracene and aromatic compounds from mixtures, solving a long-standing challenge.
Magnesium protects tantalum, a promising material for making qubits
Researchers found that a thin layer of magnesium significantly improves tantalum's purity and raises its operating temperature as a superconductor. This could lead to increased quantum information retention in qubits, ultimately benefiting quantum computing.
Direct view of tantalum oxidation that impedes qubit coherence
Researchers use advanced electron microscopy and computational modeling to understand tantalum oxide formation, which can impede qubit performance. The study reveals a 'suboxide' layer at the interface between tantalum and oxide, with ordered crystalline lattice features.
Unveiling Oxidation-induced Super-elasticity in Metallic Glass Nanotubes
A research team led by Professor Yang Yong found that severely oxidized metallic glass nanotubes can attain an ultrahigh recoverable elastic strain of up to 14% at room temperature. The discovery implies that oxidation in low-dimension metallic glass can result in unique properties for applications in sensors, medical devices, and othe...
Making an important industrial synthesis more environmentally friendly
Scientists from Osaka University and collaborators identify environmentally friendly reaction conditions for producing peracids, overcoming wasteful and dangerous chemical synthesis methods. The optimized process uses sunlight and oxygen, allowing for safe and cost-effective production of essential chemicals.
The first domino falls for redox reactions
Researchers have successfully transmitted a domino effect in redox reactions for the first time. The new mechanism involves a two-part molecule that undergoes structural changes upon oxidation, triggering further oxidation in neighboring groups. This discovery has potential applications in nanoscale computing and energy systems.
Scientists unveil fire-safe fuel
Scientists at the University of California - Riverside have developed a fire-safe fuel that cannot ignite without an external electrical current. This breakthrough could significantly reduce the risk of wildfires and improve energy efficiency.
CityU researchers develop novel photo-oxidation therapy for anticancer treatment
Researchers at City University of Hong Kong have developed a new class of near-infrared-activated photo-oxidants that can effectively kill cancer cells without requiring oxygen. The discovery offers a promising direction for developing anti-cancer drugs and could overcome existing limitations of photodynamic therapies.
Liver-targeting drug reverses obesity, lowers cholesterol in mice
Researchers developed a liver-targeting drug that reversed obesity and lowered cholesterol in obese mice by delivering the drug via nanogel. The treatment, which was administered intraperitoneally, effectively normalized weight and reduced cholesterol levels despite continued high-fat diet consumption.
Current thinking on batteries overturned by cathode oxidation research
Researchers discovered 'oxygen hole' formation in LiNiO2 cathodes accelerates degradation and release of oxygen. Computational studies revealed nickel charge remains stable while oxygen undergoes changes during charging.
Simultaneous synthesis and fixing of covalent organic frameworks
Researchers from Tokyo Institute of Technology have developed a novel synthesis method for imine-based COFs, eliminating the need for long reaction times, high temperatures, and Lewis acid catalysts. The method uses an electrogenerated acid as a catalyst, enabling direct fixation of COF films onto electrodes.
Rosé renaissance: Spanish study uncorks ultrasound for superior wine quality
Researchers from Spain used high-power ultrasound technology to treat Monastrell grapes, resulting in improved color and sensory profile of the rosé. The study found that sonication enhanced the extraction of volatile compounds, such as terpenes, which improve aroma.
A new player unveiled for lipid oxidation
Researchers have identified opioid growth factor receptor (OGFr) as a promising new target for enhancing lipid oxidation. Studies in rodents and human subjects suggest that OGFr boosts lipid metabolism, improving thermogenesis and reducing the risk of obesity-related diseases.
In resistance training, focusing on load or number of repetitions leads to same muscle growth
A recent study by researchers at UNICAMP found that low-load with many repetitions and high-load with fewer repetitions both promote similar muscle growth. Muscle activation patterns were different, but metabolic stress was the same in both groups.
Targeting cellular respiration as a therapeutic strategy in glioblastoma
Researchers discovered that FDA-approved HDAC-inhibitors can impact energy metabolism in solid tumor cells, including glioblastoma. The combination of HDAC-inhibitors and imipridones may synergize to enhance killing of GBM cells by reversing cellular respiration.