Articles tagged with Vapors
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New research suggests that exposure to vape and e-cigarette residue on surfaces during pregnancy can cause immune system damage in unborn babies. The study found that maternal third-hand exposure to e-vapour results in significant, long-lasting effects on lung and bone marrow immune cell responses.
Researchers use high-energy synchrotron X-ray to study spatter dynamics during LPBF, revealing links between vapour depression shape and spatter interactions. The study proposes strategies to minimize defects, improving the surface quality of LPBF-manufactured parts.
A tailored, interactive text message intervention was found to increase self-reported vaping cessation rates among adolescents recruited via social media channels. The program effectively reduced dual use and prevented teens from starting to smoke.
A new study by MIT and University of Chicago scientists pin down the origins of the moon's tenuous atmosphere, finding that meteorite impacts are the primary process. Over billions of years, these constant impacts have kicked up lunar soil, vaporizing certain atoms and lofting particles into a thin atmosphere.
A new study published in JAMA Network Open found that children exposed to indoor vaping absorb 84% less nicotine than those exposed to indoor smoking, while those exposed to neither absorbed 97% less. This suggests that second-hand exposure to harmful substances in e-cigarettes is likely to be much lower still.
A nationally representative survey reveals a shift in tobacco use among young adults, with historically low cigarette use and higher e-cigarette use. Exclusive e-cigarette users are unlikely to transition to combustible tobacco.
Researchers at the University of Bristol found that viruses lose their infectivity quicker in cleaner air, with opening a window reducing acid content and speeding up death. The study provides valuable insights into mitigating risk through gas composition manipulation.
Researchers found that boreal wetlands are a substantial source of isoprene and terpenes, contributing to the formation of secondary organic aerosol and ozone. The emissions from these wetlands exhibit a strong exponential temperature response, making them a significant concern in a warming climate.
Researchers developed a biologically inspired 'vaping robot' to mimic human breathing patterns and tested commercially available e-liquids containing menthol. The study found that menthol vapers took shallower breaths and had poorer lung function compared to non-menthol smokers, regardless of age or smoking history.
Researchers at Pusan National University have created a portable molecular sensor that detects biogenic amines released from spoiled food using polydiacetylene-based beads. The sensor, which changes color to red upon binding with BAs, can be used for rapid visual detection of spoiled food during storage and distribution.
A new study found that prolonged inhalation of e-cigarette aerosols by mice caused changes in pulmonary immune cell composition and altered gene and protein levels in the lungs. Even low exposure to JUUL aerosols had significant impacts on the animals' lung health.
Research from the University of Georgia found that physically active high school students were 23% more likely to use e-cigarettes than their less active peers. The study linked physical activity levels to risk of e-cigarette use among American adolescents.
Researchers at PNNL have developed a sodium-ion battery with greatly extended longevity in laboratory tests. The new electrolyte recipe stabilizes the protective film on the anode and generates an ultra-thin protective layer, providing long cycle life and stability. This technology has potential for applications in light-duty electric ...
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.
Scientists at Nanyang Technological University, Singapore, have developed a durable coating that prevents fogging and 'self-cleans' under sunlight exposure. The coating shows excellent adherence to the plastic surface and maintains durability in tests, offering an attractive long-term solution for various applications.
Researchers have designed a novel thermal armour that successfully inhibits the Leidenfrost effect up to 1,150°C and achieves efficient liquid cooling across a wide temperature range. The breakthrough has significant implications for applications in aerospace, space engineering, and next-generation nuclear reactors.
Researchers found that levitating ice requires a significantly higher temperature threshold than liquid water, with the meltwater layer creating a temperature differential that consumes most of the surface's heat. This results in a larger temperature window for boiling, leading to better heat transfer compared to using a liquid alone.
Research finds a heightened risk of bronchitic symptoms and shortness of breath among young adults exposed to secondhand nicotine vapour from e-cigarettes. Exposure to ultrafine particles, volatile compounds, and metals can harm lung tissue.
Researchers discover Amazon basin as main mechanism for precipitation in Atacama Desert, accounting for 40-80% of total precipitation. The findings reveal a new pathway of water supply for the driest region on Earth, aside from summer rain, through moist easterly winds and winter storms.
Researchers at Korea Maritime & Ocean University have discovered a novel compound, β-HQ clathrates, that can capture both carbon dioxide and nitrous oxide in the atmosphere. The discovery provides valuable insights into the kinetics of trapping these greenhouse gases, which could lead to the development of new gas capture technologies.
A new approach evaluates vaporization enthalpies of alkylaromatic compounds and their derivatives, showing high accuracy compared to experimental methods. The method uses additivity principles and accounts for non-additive effects due to π-conjugation and intermolecular hydrogen bonding.
A new model by a SwRI-led team applies geologic evidence to understand how oxygen levels in the Earth's atmosphere evolved. The results indicate that large impacts may have contributed to the scarcity of oxygen, delaying its oxidation.
Scientists from Trinity College Dublin have developed tiny, color-changing gas sensors using new materials and 3D printing techniques. These sensors can detect solvent vapors in air and have potential applications in wearable devices for health monitoring and low-cost environmental monitoring systems.
A new air-sampling system developed by researchers can detect an unprecedented range of potentially harmful airborne compounds. The system uses a special badge or pen attached to clothes or placed in a pocket to capture a broad spectrum of volatile organic compounds, allowing for more comprehensive exposure assessments.
Scientists have created a new type of liquid in thin films of glass, which forms a high-density glass with distinct structures, akin to graphene and diamond. This breakthrough enables the development of new materials with improved properties, leading to potential advancements in various industries.
Research from Thomas Jefferson University found that e-cigarette vapor increases levels of the coronavirus receptor ACE-2 in lung tissue of mice, making them more susceptible to infection. Male mice were found to have a greater increase in ACE-2 when exposed to nicotine, highlighting a potential sex difference in vaping-related risks.
A new device that fits over a person's ears can measure real-time changes in blood alcohol levels through the skin. The device collects gas released through the skin and uses an ethanol vapour sensor to calculate ethanol concentrations.
The study shows that switching to high-quality vaping products reduces health risks and provides an alternative for smokers who would not otherwise quit. The review also emphasizes the importance of consistent product manufacturing regulations and robust stewardship standards.
A new silicone-based patch fabrication technique fabricates thin patches that rapidly wick water away from the skin, reducing skin irritation caused by wearable biosensors. The technique was developed to improve comfort and performance of wearable bioelectronics.
Researchers have developed a pen-like sensor that changes color in response to harmful gases, offering a potential solution for detecting toxic vapors. The device can identify nerve agents and volatile amine vapors, with applications in food safety, environmental monitoring, and public safety.
Researchers studied iodine oxoacid formation from ocean vapors, finding rapid conversion to aerosol particles that affect climate and human health. Iodic acid was identified as a key vapor, while iodous acid played a stabilizing role in neutral particle formation.
A new study reveals that iodine oxoacid particle formation can compete with sulfuric acid in pristine atmospheric regions, contributing to Earth's climate system. Iodine plays a critical role in rapid new particle formation, particularly in coastal and marine areas.
Researchers at ETH Zurich have gained new insights into aerosol formation by detecting volatile components for the first time. Volatile components were found to catalyze vapor nucleation, accelerating the process.
Researchers found that propylene glycol and vegetable glycerol cause gut inflammation by breaking down zipper-like junctions between cells. Chronic e-cigarette use can lead to a 'leaky gut,' allowing microbes and molecules to seep out, resulting in chronic inflammation.
UC San Diego researchers found that e-cigarette flavoring chemicals can damage lungs and affect immune system function. The study discovered irregular protein levels in saliva and airways of vapers compared to non-vapers, suggesting regular use of flavored e-cigarettes harms lung health.
Researchers at NIST have created a faster and safer method to train detection dogs using polydimethylsiloxane (PDMS) infused with vapors from explosives. This two-temperature method reduces the time needed to prepare training aids, allowing for quicker training of dogs to detect real substances.
The study shows Vype ePen 3 is superior to Vype ePen 2 for nicotine delivery and ranked significantly higher in user satisfaction. The device scored nearly double the likability compared to its predecessor, with improved design features such as increased power and protonated nicotine.
A UTEP researcher is developing an animal model to investigate the effects of nicotine vapor exposure on adolescent behavior. The study aims to understand how nicotine affects impulse and risk-taking decisions in teens.
A new study explores long-term if-then-scenarios to quantify the effects of Arctic summer sea-ice melting on global warming. The research reveals that complete Arctic sea-ice melt could lead to an additional 0.2°C of warming, threatening climate goals.
Researchers from ETH Zurich and colleagues reconstructed the Paleocene and Eocene climates using siderite minerals, finding high humidity and heat transport. This suggests today's global warming is linked to increased moisture and heat transport in the atmosphere.
A research team from Russia and Japan explored jet formation in an optical fiber immersed in liquid, revealing the reasons behind this phenomenon. The study found that the jet velocity depends on the relationship between the vapor bubble size and fiber radius, with potential applications for laser surgical techniques.
Researchers demonstrate that high-resolution spectroscopy can detect water vapour and other chemicals in the atmospheres of exoplanets behind dense clouds. Models based on known exoplanets with clouds show promise for detecting trace species with just a few nights of observations.
Researchers at University of Guelph discover that e-cigarette vapour is more rewarding for adolescents, even with shorter exposures, compared to adults. The findings may help explain why e-cigarettes are popular among adolescents and contribute to their continued use.
Researchers developed a compact Trace Vapor Generator for Explosives and Narcotics, which can accurately generate trace vapors of low vapor pressure compounds. The device is portable and can be used for non-contact sampling, providing a stable vapor for several hours.
Researchers successfully trained locusts to detect and differentiate various explosives using their olfactory system. The team also developed a way to read the brain activity of the locusts to pinpoint the direction of odor emission, paving the way for bomb-sniffing cyborg locusts.
Researchers from KAUST developed a simple and noninvasive treatment to optimize perovskite solar cell materials. A bromine vapor treatment penetrates the surface of crystals, removing defects and producing a dramatic increase in electrical conductivity and carrier mobility.
A study by UC Davis found that cold air rises in the tropics due to water vapor's lightness, forming clouds and thunderstorms. This buoyancy effect helps regulate tropical climates and reduces climate warming.
Scientists at Nanyang Technological University created a paper-like material from pollen that responds to changing humidity levels. The pollen paper can bend, flip, and move, making it useful for applications such as soft robots, sensors, and artificial muscles.
A new study proposes a device that generates a cooling load without electricity, using evaporation of pure water and highly concentrated salty solution. The device's modular design allows for fine-tuning of cooling power and has the potential to overcome limitations of traditional passive cooling technologies.
A new vapour product called iSwitch has been shown to have significantly fewer and lower levels of certain toxicants compared to cigarette smoke. The study found that the iSwitch vapour contained no or extremely low levels of analytes, even when used at high power settings.
Researchers at NIST have found a way to link measurements made by a device integral to microchip fabrication directly to the recently redefined International System of Units (SI), increasing users' confidence in their measurements. The device, a quartz crystal microbalance, is critically important to industries that rely on precision c...
A team of researchers from the University of Houston has solved a scientific mystery about evaporation, shedding light on its role in industrial processes. The new understanding eliminates a long-standing bottleneck in predicting evaporation rates, enabling more accurate simulations and design of advanced systems.
A new study by British American Tobacco found that vapour and tobacco heating products emit significantly fewer harmful constituents than cigarette smoke. The study analyzed actual consumer usage, finding reduced exposure to toxicants with lower consumption rates.
Researchers at NREL successfully integrated aluminum into their HVPE reactor and demonstrated the growth of semiconductors aluminum indium phosphide (AlInP) and aluminum gallium indium phosphide (AlGaInP). This breakthrough could lead to cheaper solar cells with comparable efficiency to MOVPE-grown ones.
A recent study published in Respiratory Research found that vaping may have similar effects on harmful lung bacteria as smoking. Researchers compared the effects of cigarette smoke and e-cigarette vapor on four types of bacteria associated with smoking-related illnesses, including chronic obstructive pulmonary disease (COPD) and asthma.
Researchers found no link between e-cigarette vapor and pneumonia in mouse models, contrary to earlier concerns about vaping's health risks. However, e-cigarette vapor did alter gene expression of pneumococcus bacteria, which may impact immune response.
A Colorado State University team is developing small, wearable air pollution sensors to assess occupational hazards. The devices will be easy to use and provide comprehensive data on airborne chemicals, particles, and vapors, making it possible for workers to know what they're breathing.
The University of Warwick has developed a new theory to accurately predict the lifetime of evaporating liquid droplets, which can be exploited for engineering design. The research reveals fascinating new physics in vapour flow, including jumps in temperature across just a few molecules.
Researchers at Tufts University have developed silk materials that can form highly detailed patterns in a matter of seconds, which can be erased and reformed using vapor, enabling reversible printing and thermal regulation. The technology has potential applications in optical electronic devices, biomedical materials, and smart textiles.
Physicists at Mainz University have developed a new method to detect dark matter using cesium atom vapor and atomic spectroscopy. By searching in a previously inaccessible frequency range, they were able to formulate new restrictions on the nature of dark matter.