Articles tagged with Acids
Researchers have developed a novel catalytic approach to synthesize monocyclic 3-(pyrrol-1-yl)-azetidin-2-ones, which show potential as therapeutic agents. The method yields all four diastereomers with high selectivity and has been published in Current Organocatalysis.
New biodegradable plastics can be strengthened by adding a small amount of cream of tartar or citric acid, making them suitable for bags and food packaging. The new materials are stronger than conventional bioplastics and some petroleum-based products.
Researchers at UCLA have created the first synthetic version of lissodendoric acid A, a sea sponge-derived molecule with potential therapeutic benefits for Parkinson’s disease and similar disorders. The team developed a method that employs cyclic allenes to produce only the desired enantiomer of the molecule.
A study found that acidification of aerosols post-exhalation significantly impacts viral load. Influenza A viruses are inactivated within minutes, while SARS-CoV-2 requires days at typical indoor pH levels.
Researchers at Baylor University have synthesized a new, one-step Lewis superacid called tris(ortho-carboranyl)borane (BoCb3), which has applications in the production of common plastics. The compound is more efficient to produce, safer for the environment, and could potentially save billions of dollars in manufacturing costs.
Research found high levels of sweet and fruit-flavour chemicals in 'tobacco-flavoured' e-cigarette liquids, particularly fruity and caramellic flavour chemicals. The study suggests manufacturers are getting around regulations by using these flavour chemicals in products marketed as 'tobacco-flavoured', raising concerns about their safety.
Researchers at Jacobs University have found that a compound in coffee, 5-caffeoylquinic acid, can inhibit the interaction between the SARS-CoV-2 spike protein and the ACE-2 receptor, potentially providing protection against COVID-19. The study's findings suggest that regular coffee drinkers may be less likely to contract the virus.
Researchers studied ketene conversion over H-SAPO-11 using kinetic analysis and spectroscopy. They found two pathways: acetyl species following acetic acid ketonization or acetoacetyl species via keto-enol tautomerism with water.
Researchers have developed a three-step process to treat phosphoric acid plant wastewater, recovering clean water and phosphate while reducing the volume of wastewater by 90%. The circular process uses selective electrodialysis, reverse osmosis, and neutralization, making it a promising solution for industries worldwide.
A Brazilian research team has developed a novel method to sort specialty and standard coffee beans using multispectral imaging and machine learning. The technique, which does not require roasting or human intervention, uses images of the beans at different wavelengths to distinguish between quality levels.
Researchers have developed a novel route to transform CH3Cl to acetic acid through carbonylation, achieving high selectivity and efficiency. The study proposes a reaction mechanism involving chemical adsorption, formation of acetyl groups, and hydrolysis.
Chemists at Scripps Research unveil a new method for synthesizing diverse and complex lactones from cheap dicarboxylic acids. This breakthrough enables the creation of valuable molecules, such as natural antibiotics and fragrances.
Research team from Goethe University reproduces Asian monsoon conditions in experimental chamber, identifying increased aerosol particle formation. The study found that ice clouds can form under lower water vapour supersaturation than anticipated, affecting climate models' accuracy.
Researchers from Tokyo Tech developed an alumina-supported iron-based catalyst that efficiently converts CO2 into formic acid with up to 90% selectivity. The new catalyst's excellent recyclability and low-cost nature make it a promising candidate for reducing atmospheric CO2 levels and providing energy via combustion.
A new study systematically reviews data on PFAS exposure and liver damage, linking three commonly detected PFAS to elevated levels of a liver enzyme, ALT. The research suggests a potential link between PFAS and non-alcoholic fatty liver disease (NAFLD), a growing public health crisis affecting 25% of adults worldwide.
Researchers develop less-corrosive solutions using methanesulfonic acid, p-toluenesulfonic acid and oleum acids to separate and process nanotubes. The new method enables scalable production of advanced materials with excellent electrical and mechanical properties.
Scientists have identified three active compounds in sex pheromones of the world's largest hornet, Vespa mandarinia, to attract males and control its reproduction. The discovery could aid in monitoring and controlling the invasive species' spread in North America.
Researchers created a dental tool that measures plaque acidity using an LED light and FDA-approved chemical dye, providing dentists with early warning signs of cavity development. The device can help limit the need for specific harmful bacteria tests and educate patients about sugar's impact on oral health.
Researchers developed a novel electroanalytical technique that co-detects dopamine and uric acid in urine samples, overcoming interference from ascorbic acid. The technique uses a gold-containing ternary nanocomposite electrode, enabling simultaneous detection of low-level DA and UA under physiological conditions.
A study discovered that fungus Cyanodermella asteris synthesizes valuable compounds in plant Aster tataricus, influencing its growth. The interaction reveals a two-way dialogue between the microbe and host, with the fungus producing beneficial compounds while also being influenced by plant hormones.
Researchers at the University of Tokyo have developed a cost-effective and convenient method to apply an antimicrobial silver coating to textiles using polyphenols found in wine and chocolate. The coating maintains its properties even after multiple washes and has potential applications in hospitals and other sterile environments.
Researchers found that people with ALS have higher levels of arachidonic acid, a lipid involved in inflammation, and that tampering with this pathway can reduce muscle-weakening symptoms. The study suggests that targeting the arachidonic acid pathway may offer potential new therapies for Lou Gehrig's disease.
A new method uses carbon dioxide, water, and food-grade citric acid to extract rare-earth metals from coal ash without damaging the environment. This technique increases a national resource while making coal ash cleaner and less toxic.
Researchers at KTH Royal Institute of Technology developed an ultrasound-assisted extraction method for valuable metals from electric car batteries, reducing extraction time by 50% and increasing metal ion recovery. The new process uses gentler acids and eliminates the need for harsh chemicals.
A study published in the Journal of Materials Science: Materials in Medicine found that alginic acid improves artificial bones by increasing porosity, compressive strength, and setting time. The addition of alginic acid to calcium phosphate cement enhances its mechanical properties, allowing for more effective bone replacement.
Researchers develop method to produce high-quality gypsum binders from synthetic calcium sulfate dihydrate, surpassing natural gypsum in several parameters. The new material can replace natural gypsum in countries without gypsum stone deposits, reducing production costs and simplifying technology.
Scientists have identified a set of microbial genes that play a crucial role in converting bile acids into beneficial forms. This discovery could lead to the development of therapeutic strategies to enhance gut health and prevent diseases associated with unbalanced bile acid levels.
A new study suggests that hexanoic acid could be a suitable substitute for chemical protection in citrus cultivation, addressing concerns about the impact of old-school defenses on food safety. Researchers believe this fatty acid may help protect against diseases like canker, which causes brownish lesions on leaves and fruit.
A team of researchers has discovered the dominant mechanism behind the formation of formic acid in the atmosphere, a key contributor to air acidity. The study reveals that formaldehyde reacts with water molecules to produce methanediol, which then oxidizes to form formic acid.
Research has expanded hyaluronic acid's uses beyond cosmetics, exploring its potential in wound healing, nerve and muscle pain treatments, and cancer therapy. The ingredient is being combined with other proven ingredients to create optimized products with tangible results.
Oak Ridge National Laboratory has developed a non-invasive air leak detection method that uses imaging technique to visualize air leaks and calculate volumetric flow. The lab also engineered a microbe to efficiently turn waste into itaconic acid, an industrial chemical used in plastics and paints. Additionally, researchers demonstrated...
A team of researchers has developed a method to create biodegradable polymer microcapsules with non-spherical shapes, which can enhance targeted drug delivery. The capsules are designed using soft lithography and have shown promising results in retaining hydrophilic molecules and being internalized by cells without causing toxic effects.
A team at Tokyo Medical and Dental University developed a material that aids in bone healing, allows for clear assessment of bone damage and clarifies probable patient outcomes. The material incorporates a fluorescent molecule, enabling real-time visual analysis and predictions of therapeutic outcomes.
Researchers at Lund University develop a method to convert cotton into sugar, which can be turned into spandex, nylon, or ethanol. The process involves soaking fabrics in sulphuric acid, producing a clear, dark amber-coloured sugar solution with potential uses in various industries.
Researchers found that hymecromone, a spasmolytic drug, reduces the production of anti-inflammatory molecules in astrocytes. This could lead to new treatments for neurodegenerative diseases such as Alzheimer's. Hymecromone's mechanism of action is thought to involve reducing hyaluronic acid synthesis, which affects inflammation.
Researchers have developed a computational model to improve the production of polyisobutenyl succinic anhydrides (PIBSAs) for auto industry formulations. The study reveals the detailed mechanism of Lewis acid-catalyzed reactions, enabling faster and more efficient synthesis with reduced energy input.
Chemists have developed a simplified three-step process for synthesizing spirocyclic tetrahydroisoquinolines, a key organic molecule in drug discovery. The new method significantly reduces the time and complexity of existing approaches, enabling more efficient creation of pharmaceutical compounds.
A German-Chinese research team has developed a new synthetic route to produce biofuel from biomass, achieving a higher yield and selectivity under milder reaction conditions. The method uses formic acid as a key catalyst, resulting in faster reaction rates and reduced unwanted side reactions.
Researchers from Hokkaido University have found that ultraviolet light reacts with nitrophenol to produce atmospheric nitrous acid, a key component of photochemical smog. This decomposition process occurs in real-time and involves the distortion of the nitrophenol molecule's shape under extreme UV light.
Researchers found changes in gut microbiome composition correlate with higher levels of toxic bile acids in people with Parkinson's. The findings suggest bile acids may be a viable biomarker for diagnosing Parkinson's early and tracking its progression.
Rice University engineers have created a process that converts carbon monoxide directly into acetic acid, a widely used chemical agent. The electrochemical process uses nanoscale copper cubes and solid-state electrolytes to produce highly purified acetic acid with up to 98% purity.
A novel engineered C. glutamicum strain can produce high-level glutaric acid from glucose, breaking the record for the highest titer ever reported. The new strategy employs systems metabolic engineering strategies, including introducing Pseudomonas putida genes and optimizing culture conditions.
Researchers created a cost-efficient method to synthesize eco-friendly 'pseudo' gemini surfactants with comparable performance to existing compounds. The new surfactants have desirable properties, such as low superficial tension and biodegradability, making them suitable for various industries like skincare, medicine, and construction.
Researchers found that hypochlorous acid can chemically modify malodorous compounds and rapidly inactivate infectious particles, promoting greater latrine use. The study also shows potential for HOCl to improve latrine odor and reduce transmission of diseases such as dengue fever.
Feng Jiao, a renowned chemical engineering expert, is leading research on transforming carbon dioxide into valuable chemicals using catalysis. His projects aim to produce formic acid and ethylene from CO2 without purification, with the goal of commercializing this technology.
Researchers successfully synthesized hetero-steroid-amino acid conjugates using microwave-assisted Ugi-4-CR reactions. This method improves yields and reaction rates, offering a promising approach for synthesizing novel hybrid molecules.
A team at KAIST developed an E. coli strain that can grow up to 11-fold higher cell density using CO2 and formic acid as sole carbon sources. The engineered strain shows promise for producing chemicals from these carbon sources, a crucial step forward in biorefinery production.
Researchers explore ascorbic acid's role in organic synthesis, revealing its potential as a catalyst for diverse reactions and its unique mechanistic pathways. This study contributes to green chemistry by demonstrating the versatility of ascorbic acid in environmentally benign processes.
Researchers detected nitrous acid levels two to four times higher than expected in wildfire plumes globally, driving increased ozone pollution and air quality harm. The chemical accelerates the formation of lung-damaging ozone pollution downwind of fires, with significant variations depending on ecosystem type.
A research team from Technical University of Munich has developed a synthesis process that drastically increases the activity of catalysts for removing sulfur from crude oil. The new process uses concentrated hydrochloric acid to improve catalytic performance.
Researchers at Vanderbilt University Medical Center discovered a cashew shell compound that promotes myelin repair in laboratory experiments. The compound, anacardic acid, inhibits an enzyme involved in gene expression, leading to increased production of IL-33 and rapid induction of myelin genes and proteins.
Researchers analyze how acids and other compounds contribute to sour beer's unique taste, with findings that could help brewers gain more control over the flavor. The study uses NMR spectroscopy and mass spectrometry to track changes in organic acids and identify trace compounds that influence flavor.
Scientists from the University of Edinburgh developed a sustainable method to produce adipic acid, a key component of nylon, using genetically modified bacteria grown in liquid solutions containing guaiacol. This approach produces adipic acid without emitting nitrous oxide greenhouse gases.
Researchers have developed a catalytic system that directly installs the trifluoromethyl group onto arenes using trifluoroacetic acid. The new reaction offers a milder alternative to existing strategies and has been successfully applied to a diverse array of arenes and heteroarenes.
Scientists at Tata Institute of Fundamental Research developed nano-sponges of solid acid that convert carbon dioxide into fuel and plastic waste into chemicals. The material exhibits strong acidity and high surface area, making it a promising catalyst for sustainable processes.
Researchers from Kyoto University have developed a new method to synthesize dicarboxylic acids and generate hydrogen as a byproduct. Using renewable diols and an iridium catalyst, the process achieves greater efficiency and yield, offering a safer alternative for industrial organic chemistry.
Researchers at Hokkaido University have successfully synthesized a non-natural fluorinated amino acid using a novel computer-assisted method. The Artificial Force Induced Reaction (AFIR) method predicts feasible reaction pathways, significantly reducing synthesis time and cost, with yields of up to 99.99%.
Functional star-shaped polymers exhibit improved thermostability, making them suitable for medical diagnostics and targeted drug delivery. The study establishes a relationship between the synthesis conditions and the structure of the obtained compounds.
Scientists at Bielefeld University have created a method to produce a biologically significant precursor of jasmonic acid, a hormone that helps plants defend against predators. The new approach mimics how plants naturally produce the hormone, using enzymes as plant catalysts in a synthetic process.
Researchers have identified specific compounds from the Brazilian peppertree that reduce the virulence of antibiotic-resistant staph bacteria. The triterpenoid acids block the ability of bacteria to produce toxins, allowing the immune system to heal wounds more effectively.