Articles tagged with Peroxides
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Researchers at Stanford University have made a groundbreaking discovery that microscopic droplets of water spontaneously produce hydrogen peroxide. The finding has significant implications for the production and use of hydrogen peroxide, which is commonly used as a bleaching agent and disinfectant.
Researchers found that hydrogen peroxide in whitening strips damages dentin tissue beneath the enamel. The active ingredient converts collagen into smaller fragments, potentially causing permanent tooth damage.
A team of engineers discovered a microgel powder that reduces bacteria and virus ability to infect by at least 99 percent. The powder, made from hydrogen peroxide, is reusable and can be used in various applications such as remote clinics or war zones.
Researchers developed a new sensor that detects hydrogen peroxide levels in human cells to identify effective chemotherapy drugs. The sensor can be used to screen existing drugs and predict success in individual patients' tumors. This breakthrough could lead to more targeted and effective cancer treatments.
Researchers used FDA-approved nanoparticles to disrupt biofilms and prevent tooth decay in both human-plaque-like biofilm and animal models. The treatment showed strong evidence of its effectiveness in preventing mineral destruction of the tooth's surface and blocking cavity formation.
Researchers have developed a new, less destructive teeth whitening method using blue light-activated nanoparticles. The treatment showed similar whitening levels to hydrogen peroxide-based agents without enamel damage or cytotoxicity. Additionally, the therapy demonstrated antibacterial activity against certain bacteria.
Plant physiologists from Lomonosov Moscow State University discovered that hydrogen peroxide is essential for conifer pollen germination. The protein NADPH-oxidase regulates the process, which involves a gradient of hydrogen peroxide in the pollen tube to support growth and fertilization.
A study published in Journal of the American Academy of Dermatology found an FDA-approved topical solution to be less cytotoxic and damaging to melanocytes than cryosurgery, suggesting a safer option for seborrheic keratosis removal
Researchers have discovered a cheap, safe, and effective method of dealing with harmful algal blooms using hydrogen peroxide. The treatment has shown promising results in controlling cyanobacteria, a major public health hazard, and could help prevent fish kills and closures of waterways.
Osaka University researchers develop an enzyme-driven approach to sticking biological ink droplets together, enabling the 3D printing of highly complex biological structures with a wide variety of cell types. The method overcomes compatibility problems with sodium alginate and results in high viability rates for cells.
Manganese dioxide-based micromotors exhibit remarkable propulsion efficiency and can remove organic dyes from water with high efficiency. The study demonstrates the potential of manganese dioxide in catalytic micromotors, including protection against sulphur toxicity and efficient drug delivery.
Researchers discovered that hydrogen peroxide plays a crucial role in plant adaptation to sunlight. Plants use H2O2 to signal genes in their cell nuclei, allowing them to adjust and protect photosynthesis. This process ensures plants continue to thrive under varying light conditions.
Researchers at the University of Illinois have developed a new method to produce plastics precursors using environmentally friendly catalysts and hydrogen peroxide. This approach can reduce the use of olefin molecules derived from fossil fuels and lower greenhouse gas emissions.
Researchers developed a new method using artemisinin and luminol to detect bloodstains, reducing false positives. The combination is more selective than traditional methods, allowing for accurate detection of blood on surfaces.
The novel method enables making size-tailored zinc peroxide nanoparticles in an environmentally friendly manner. The as-synthesised ZnO2 nanoparticles have potential to kill tumor cells through apoptotic and non-apoptotic mechanisms.
University of Arizona College of Engineering senior Christina Morrison develops antimicrobial socks using silver and hydrogen peroxide, achieving a nearly 5-log reduction in bacteria on treated material. The innovative design aims to reduce the need for water-based laundry in space, saving mass and allowing longer missions.
By controlling electron spin, scientists have almost fully suppressed hydrogen peroxide formation during water splitting, paving the way for efficient solar-based hydrogen production. This breakthrough could lead to more stable and efficient photoelectrochemical cells, increasing the feasibility of using solar energy to split water.
High-concentration peroxide ingestion has been linked to life-threatening ailments such as seizure, stroke, and respiratory distress, with a mortality rate of 6.8%. Early treatment with hyperbaric oxygen can improve outcomes.
Dutch and Israeli researchers have successfully controlled electron spin in a photo-electrochemical cell, reducing the production of hydrogen peroxide and increasing water splitting efficiency. This breakthrough could lead to more efficient hydrogen generation through solar energy.
Researchers at Southern Methodist University have discovered a new catalyst that can efficiently break the tough molecular bond between carbon and hydrogen. This breakthrough could lead to a cleaner, easier, and cheaper way to derive products from petroleum, with copper-based catalysts showing great promise in oxidizing C-H bonds.
David Wendell's technology targets harmful pathogens like E. coli, Listeria, and protozoa while preserving healthy bacteria in public drinking water. It uses light-generated hydrogen peroxide to eliminate outbreaks, without adding contaminants to the environment.
University of Pennsylvania researchers have created nanoparticles that use the acidity of tooth decay to kill bacteria in dental plaque and prevent cavities. The treatment, which combines hydrogen peroxide with acid-sensitive nanoparticles, was shown to be highly effective at disrupting biofilms and killing bacteria.
Researchers at the University of Wisconsin-Madison have discovered a new way to synthesize hydrogen peroxide in a single step, which could make it an economically feasible oxidant for various chemical processes. The method uses a palladium-based catalyst and avoids the decomposition reaction that typically occurs during synthesis.
A new catalyst, made from palladium and tin, can efficiently produce hydrogen peroxide on demand, making it accessible to underdeveloped regions. This process overcomes the challenge of decomposing the product into water quickly after production.
Researchers at Cardiff University have developed a new group of catalysts that can produce hydrogen peroxide on-demand in a simple one-step process, opening up possibilities for manufacturing the chemical in remote areas. The production of hydrogen peroxide is essential for water purification and could significantly reduce costs.
A new prototype lithium-air battery has been shown to produce only lithium superoxide, not peroxide, as it discharges, offering high efficiency and good cycle life. This discovery was made using a state-of-the-art mass spectroscopy apparatus that measures electrochemical reaction products in situ during charging or discharge.
Scientists at the University of Illinois have discovered a new mechanism for directly synthesizing hydrogen peroxide from hydrogen and oxygen gases using palladium cluster catalysts. This breakthrough provides insight into the formation of H2O2, which can be used as an environmentally benign alternative to chlorine.
Researchers at Argonne National Laboratory have discovered a way to produce stable crystallized lithium superoxide, which can easily dissociate into lithium and oxygen. This breakthrough has the potential to create a new kind of battery with five times the energy density of lithium-ion batteries.
Researchers developed HyPer-Tau, a sensor that attaches to microtubule structures to track hydrogen peroxide levels inside cells. This allows for precise sub-cellular information and understanding of oxidation-reduction reactions.
Researchers at Ghent University found a worm globin protein that generates free radical signals, which are essential for reproductive cell generation and regulation of hydrogen peroxide concentrations. Genetic knockdown of the new globin results in sterility, suggesting a crucial role for this signaling process in biology.
A new guideline updates previous guidance on treating acne in children and adults, emphasizing early diagnosis, active lesion treatment, and prevention of sequelae. The guideline recommends targeted treatments for three types of acne presentations, including comedonal, mild-to-moderate papulopustular, and severe inflammatory acne.
Researchers have designed enzyme-functionalized micromotors that can rapidly remove carbon dioxide from water and convert it into a usable solid form, potentially helping to mitigate ocean acidification and global warming.
Researchers discovered a potential mechanism for neurodegenerative diseases, suggesting that HSD10 reduces oxidative stress and promotes cell repair in humans. This breakthrough provides a fresh perspective on Alzheimer's disease etiology and could inform novel drug strategies.
Researchers explore Earth's most extreme lifeforms to predict what life could be like elsewhere in the universe. They suggest water-hydrogen peroxide mixtures for Mars-like environments and liquid hydrocarbons for Titan-like planets, with organisms adapting to frigid temperatures and slow metabolisms.
Researchers found that applying benzoyl peroxide to the skin before and after surgery significantly reduced P. acnes bacteria, potentially lowering the risk of postoperative infection. The study suggests using BPO as a tool to improve skin preparation and reduce bacterial contamination during shoulder surgery.
Researchers study the Great Lakes to determine what controls the toxicity of cyanobacterial blooms, which can be deadly to humans. They found high levels of hydrogen peroxide in Lake Erie's surface waters, which may contribute to bloom toxicity.
A University of Iowa study found that homemade strawberry-baking soda remedies have no effect on teeth whitening. In contrast, over-the-counter products, professional whitening, and prescribed whitening products produced discernible whitening results.
Researchers found that combining resveratrol with benzoyl peroxide reduces bacteria counts more effectively than either compound alone. The combination treatment may lead to new, less irritating topical acne therapies.
Researchers combined ultrafast experimental measurements with theory to study the response of explosives to shockwaves. The results showed that a hydrogen peroxide sample began to tear apart within 50 picoseconds after being shocked, leading to significant temperature increases and pressure waves.
Researchers at Doshisha University have discovered a new mechanism to propel micromotors, which can move forward, spin, or circle depending on their shape. The discovery could lead to the creation of easily controllable machines with a versatile range of motions.
Researchers at the University of Warwick have developed a way to control the speed and direction of motion of microscopic structures in water using chemotaxis. By adding a chemical catalyst, they can propel matchstick particles towards a specific location, demonstrating a versatile method for directing colloidal motion.
Researchers at the University of Texas at Austin have discovered a new chemical reaction that can create phenolic compounds from aromatic hydrocarbons quickly and cheaply. This process resolves a long-standing challenge in organic chemistry, enabling the mass production of essential compounds such as pharmaceuticals and agricultural ch...
A Johns Hopkins study found that using robot-like devices to disperse hydrogen peroxide vapor enhances hospital disinfection, reducing multiple-drug-resistant bacteria by 64% and patient colonization risk by 80%. The technology improved infection control practices, combining standard cleaning with technological solutions.
Researchers have developed a degradable polymer nanoparticle that detects biologically relevant concentrations of hydrogen peroxide, allowing for the non-invasive detection of inflammation. This method enables targeted drug delivery to diseased tissue, holding promise for treating cardiovascular diseases such as atherosclerosis.
Scientists have discovered a method to harness hydrogen peroxide's oxidizing property to switch on gene expression in live mammalian cells. The researchers designed a molecule that reacts with hydrogen peroxide and expresses the firefly luciferase gene, causing cells to glow.
Researchers use JILA's frequency comb to measure concentrations of reactive molecules in air streams, capturing complex chemical reactions and optimizing sterilization techniques. The system achieves high-level disinfection without liquid chemicals or high temperatures.
Researchers at Oregon Health & Science University's ONPRC have discovered a new method for creating vaccines that is thought to be safer and more effective than current approaches. The approach uses hydrogen peroxide to inactivate viruses for use as vaccines, showing protective vaccine-induced immunity against three diseases: West Nile...
A team of scientists, led by WSU astrobiologist Dirk Schulze-Makuch, is calling for a Mars mission with a strong life detection component. The BOLD mission would feature six probes that could detect signs of life in Martian soil through various experiments.
Researchers discovered that macrophages produce hydrogen peroxide, which activates the temperature sensor TRPM2 at normal body temperature. This mechanism enhances phagocytic activity and may lead to new treatment strategies for infection.
A team of researchers has found a new method by which seawater can corrode nuclear fuel, creating uranium compounds that could potentially travel long distances in solution or as tiny particles. The discovery highlights the need to consider this phenomenon in future nuclear operations.
A team of scientists has identified a molecular 'culprit' in the emergence of oxygen on Earth, dating back to 2.9 billion years ago. Manganese catalase, an enzyme that generates oxygen as a byproduct, is believed to be responsible for the rise of planetary oxygen.
Researchers have discovered the molecular sensor that detects wound-induced hydrogen peroxide, orchestrating the marshaling of immune cells. This finding has broad implications for cancer biology, wound healing and infection fighting.
Researchers found that hydrogen peroxide released by damaged skin cells coordinates regeneration of sensory fibers, promoting wound healing and restoring touch sensation. The study demonstrates the healing power of hydrogen peroxide in zebrafish larvae.
Researchers have developed a new bioluminescent probe that enables real-time detection of hydrogen peroxide levels in mice, allowing for the tracking of infectious diseases or cancerous tumors without harm. The PCL-1 probe has provided evidence that hydrogen peroxide is continuously produced even in healthy animals.
Researchers have discovered that an enzyme called NOX4 produces hydrogen peroxide after a stroke, leading to nerve cell death. Inhibiting this enzyme with a new drug reduces brain damage and preserves brain functions in mice with stroke.
A joint study by Helmholtz Zentrum München and Karolinska Institutet reveals that lipid peroxides temporarily inactivate protein tyrosine phosphatases, regulating cellular communication. This finding is crucial as aberrant activation of receptor tyrosine kinases contributes to various diseases, including cancer.
A custom-fit mouth tray with carbamide peroxide can combat plaque accumulation, cavities, and periodontal disease in vulnerable populations. Regular tooth whitening can also lead to improved gingival health.
A new sensor array made of carbon nanotubes can detect single molecules of hydrogen peroxide emanating from a single living cell. The detection could lead to new targets for potential cancer drugs and diagnostic devices for some types of cancer.
A PLoS ONE study suggests that hydrogen peroxide, produced by mitochondria as a by-product of oxygen combustion, may act as a signal molecule regulating daily rhythms and behavior. The research found dramatic effects on fruit fly activity levels and daily rhythms when exposed to hydrogen peroxide.
Researchers have discovered that hydrogen peroxide is released from wounds and triggers the recruitment of white blood cells to combat infection. The finding suggests that high levels of hydrogen peroxide may be involved in conditions like asthma and inflammatory gut diseases, warranting further investigation.