Articles tagged with Ultraviolet Radiation
Researchers from MIT's CSAIL present ColorFab, a method for repeatedly changing the colors of 3-D printed objects after fabrication using custom ink and UV light. The system can recolor a multi-colored object in under 20 minutes, with the goal of reducing waste and increasing customization.
Researchers have used a material's persistent photoconductivity to stimulate PC12 neurotypic cells, demonstrating a faster and noninvasive way to influence cellular behavior. The technique, which was shown to increase calcium ion levels within the cells, has the potential to advance research on cellular behavior.
Chameleons' bony tubercles on their heads emit blue fluorescent light when exposed to UV, creating distinct patterns that aid in species recognition. This phenomenon was previously unknown and is believed to play a role in mate attraction.
Scientists at ETH Zurich have synthesised four variants of THC that can be altered with light, offering a potential tool for controlling and influencing CB1 receptors. These light-sensitive THC derivatives were tested in living cell cultures and found to activate and deactivate the receptors using specific wavelengths of light.
New research on Campanula americana found that temperature influences pollen pigmentation, with dark pollen outperforming light under higher temperatures but not elevated UV. This study suggests temperature stress may play a significant role in geographic variation of pollen color.
Researchers have identified a weakness in the lethal fungus Pseudogymnoascus destructans that causes white-nose syndrome. The fungus is highly sensitive to UV light, making it susceptible to novel treatments that could save bat populations.
Researchers have created double-pane solar windows that generate electricity with greater efficiency, using two types of engineered quantum dots. The new technology utilizes a window architecture with two layers of low-cost materials, allowing for better sunlight collection and reduced energy losses.
Researchers at Ural Federal University and Institute of Chemistry of Solids created a new compound that converts UV radiation into visible light. The compound has potential uses in medical and optical devices, as well as air pollution analysis.
Researchers at KAUST have demonstrated rapid data transfer using ultraviolet-B light, overcoming interference issues with visible light and improving beam alignment challenges. The system achieved a record-breaking transmission rate of 71 megabits per second.
The Lomonosov satellite detected air showers caused by high-energy space rays and registered transient light phenomena associated with storm ares. The satellite also observed gamma-ray bursts for the first time in history, allowing for simultaneous measurements in optic and gamma ranges.
Increased UVB radiation leads to a decrease in body size and an increase in risk-seeking behavior among three-spined sticklebacks. The fish, which cannot see UVB rays, exhibit more thorough risk checking and exploration behavior when faced with predators.
A Baylor University study reveals that frequent tanners are more likely to engage in risky appearance-related behaviors, including tattoos and piercings, compared to infrequent tanners. The research suggests that excessive tanning may be a sign of body image concerns, making it essential to address social and appearance pressures.
Researchers from QUT, KIT, and Ghent University create a light-switchable chemical reaction system to revolutionize chip printing. The system uses visible light to reversibly switch certain chemical processes, potentially making it cheaper, simpler and safer.
Researchers found that equatorial regions on planets like Proxima b and TRAPPIST-1d might trap ozone, hiding signs of life from telescopic observations. This discovery highlights the challenges in detecting life beyond Earth, requiring a more nuanced strategy for searching for life.
Scientists successfully synthesized cyanobacterial photosynthetic pigment PCB in animal cells, enabling convenient use of the PhyB-PIF system for optogenetic control. The development opens up new possibilities for studying intracellular signal transduction and manipulating cellular structures.
Researchers at Kyushu University developed a device harnessing near-infrared light to drive the water-splitting reaction and produce hydrogen gas efficiently. This breakthrough enables a broader spectrum of light to be harvested, including UV, visible, and NIR, increasing the potential for clean energy storage.
Researchers at MIT have developed a new chemical composite that can store thermal energy during the day and release it when needed. The hybrid material uses molecular switches to change shape in response to light, allowing for controlled thermal energy storage.
Researchers find that environmental triggers play a crucial role in lupus development alongside genetic predisposition. Environmental factors such as particulate air pollution, ultraviolet radiation, and heavy metals can exacerbate the condition.
Researchers have developed a synthetic material that can absorb light from all directions, making it suitable for antireflective coatings. This material is similar to the brochosomes used by leaf hopper insects to blend in with their backgrounds, allowing them to hide from predators.
A new study finds that climate change could decrease the sun's ability to kill pathogens in lakes and waterways by increasing organic runoff. This can lead to an increase in waterborne illnesses, with 12-19 million people affected annually in the US.
A survey of young white women found that over one in five have signs of indoor tanning addiction and three times more likely to meet criteria for dependence. Women with depression were most likely to weigh benefits against risks.
Melanocyte stem cells can become cancerous when accumulating sufficient genetic mutations, which are activated by UV radiation from the sun. Researchers at Cornell University discovered a key gene, Hgma2, that facilitates melanoma development.
The first-ever detection of light from a gravitational wave source has been made, shedding new light on the behavior of matter under extreme conditions. The event, caused by two neutron stars colliding and merging together, was observed using numerous telescopes around the world.
A study led by University of Pennsylvania geneticists has identified new genetic variants associated with skin pigmentation in diverse African groups. The findings shed light on human evolution and inform an understanding of the genetic risk factors for conditions like skin cancer.
Researchers have developed a way to print electronics that can fold themselves into desired shapes, addressing limitations of traditional 3D printing. The new ink-based method uses residual stress to create self-folding devices without additional processing steps or stimulus.
Research published in Scientific Reports shows that RayVio's UV LED is more efficient than sunlight at producing vitamin D3 in skin samples. The study found that skin exposed to the LED for just 0.52 minutes produced more than twice as much vitamin D3 as samples exposed to 32.5 minutes of sunlight.
A genetic mutation in the CLPX gene has been identified as a potential cause of erythropoietic protoporphyria (EPP), a form of porphyria that may have inspired vampire folklore. The discovery highlights the complex genetic network underlying heme metabolism and holds promise for future therapies.
A team of researchers at the University of Iowa suggests that black holes played a crucial role in making the universe visible. By ejecting matter violently, black holes may have pierced cloudy surroundings, enabling light from stars to escape. This theory is supported by observations of a nearby galaxy emitting ultraviolet light.
A discovery by two scientists at NREL could aid the development of next-generation semiconductor devices. They used ultraviolet light to modify the interface between two dissimilar semiconductors, creating a flawless interface and enabling the integration of different classes of semiconductors.
Research in mice suggests that eating at abnormal times can weaken the daytime potency of an enzyme protecting against UV radiation, leading to increased risk of sunburn and long-term effects like skin cancer. A normal eating schedule may provide better protection from UV rays during the day.
A NASA-led CubeSat mission, CUVE, is designed to investigate the nature of a mysterious absorber in Venus' uppermost cloud layer. The mission will utilize ultraviolet-sensitive instruments and a novel carbon-nanotube light-gathering mirror to gather data.
The team achieved an unprecedented wavelength and demonstrated the potential to capture slow-motion video of electrons in atoms and molecules with attosecond light pulses. This breakthrough has significant implications for improving the efficiency of solar panels by understanding photosynthesis.
Researchers successfully perform optical coherence tomography with XUV radiation at laboratory scale, producing strong image contrasts and achieving higher resolution than infrared-based methods. The technique has potential applications in biology, including non-destructive imaging of cells.
Scientists at the University of Chicago have discovered a new way to precisely pattern nanomaterials, enabling the creation of complex structures and paving the way for next-generation electronics. The DOLFIN technology makes it possible to mass-produce nanomaterials directly into usable devices.
A team of scientists has calculated the distribution of all light energy contained within the Milky Way, providing insight into galaxy formation and stellar processes. The research shows how stellar photons control gamma-ray production in the Universe.
Researchers at Binghamton University developed a DNA coating that absorbs UV light more effectively the longer it's exposed. The film also keeps skin hydrated, slowing water evaporation and promoting faster wound healing rates in extreme environments.
Researchers have revised the understanding of a large group of Neotropical 'club-tailed' scorpions, revealing two new genera and three new species. The findings provide insight into the evolution and classification of these ancient arthropods, which are among the oldest living terrestrial species on Earth.
The sequencing of Porphyra's genome revealed minimal structural elements in its cellular cytoskeletons, allowing it to thrive in extreme environments. The analysis also uncovered genes for UV protection and compounds that enable the organism to withstand desiccation.
Researchers found that using a black light helps dermatologists determine the extent of melasma, a hyperpigmentation condition that causes brown and gray patches on the face. This can lead to early detection and treatment, reducing the risk of the condition worsening over time.
Researchers have discovered how certain enzymes in living organisms can repair damaged DNA caused by prolonged exposure to UV light. The enzymes, called (6-4) DNA photolyase, use electrostatic interactions to bind to the damaged DNA and keep it separate from the rest of the cell.
A new technology using photoswitch molecules allows for the creation of 3D light structures viewable from 360 degrees, with potential applications in biomedical imaging, education, engineering, and entertainment. This discovery could also improve medical diagnosis by providing real 3D images from MRI scans.
Researchers at Australian National University (ANU) have designed a new nano material that can reflect or transmit light on demand with temperature control. This innovation offers potential protection for astronauts in space from harmful radiation, increasing resistance threshold against radiation compared to current technologies.
A new study reveals that tadpoles living in low-temperature environments are more susceptible to DNA damage from UV radiation. This increased risk can lead to mutations and cell death, contributing to the global amphibian extinction crisis.
A recent study published in Nature Communications suggests that unregulated chemicals like dichloromethane could substantially delay the recovery of Antarctic ozone levels. If continued emissions trends persist, ozone depletion could be offsetting some of the future benefits of the Montreal Protocol.
Scientists at Lomonosov Moscow State University found that avobenzone, a popular UV filter in sunscreen products, breaks down into hazardous chemical compounds when exposed to chlorinated water and ultraviolet radiation. These compounds can be toxic and have been linked to liver and kidney dysfunction, as well as nervous system disorders.
Researchers at Case Western Reserve University found a way to store digital data in half the space required by current systems. They developed an optical storage system using polymer films containing two dyes, which can represent information using a quaternary code.
Osaka University researchers have developed a novel solar material that can efficiently split water to produce clean hydrogen fuel, outperforming traditional semiconductors. The three-part composite material maximizes light absorption and electron conduction, resulting in 60 times higher activity than pure lanthanum titanium oxide.
Researchers develop a class of small molecules that penetrate and darken human skin samples in the laboratory. The drug generates protective tans in red-haired mice, which are more susceptible to skin cancer via UV radiation.
The journal published two ultraviolet radiation datasets covering China, providing long-term measurements from 1961 to 2014. This move aims to promote translational applications for the general public by making atmospheric and physical oceanographic data traceable and citable.
Chinese researchers create microscale optical waveguides using lanthanide metal-organic frameworks, offering potential for low-loss light conduction and polarized emissions. The novel structures emit luminescence in different colors depending on the used lanthanide, making them suitable for color-tunable optical applications.
Researchers found that stratospheric ozone concentrations in the US are vulnerable to water vapor and temperature variations from storm systems, posing a risk to human health and crops. The study calls for increased meteorological and chemical observations to forecast short-term and long-term ozone loss.
Researchers at OIST created self-assembling molecules that can be rearranged by ultraviolet light to form novel macroscopic structures. This breakthrough enables the creation of exotic nanostructures with tailored functions, holding potential for biological and pharmaceutical applications.
A team of researchers has directly observed the magnetic field in the upper solar atmosphere for the first time using ultraviolet spectropolarimetry. The study reveals more complex structures in the chromosphere and transition region than expected, with polarization varying on a spatial scale of 10-20 arcseconds.
Researchers at North Carolina State University developed a new method for manipulating cells using light, creating an effective tool for bioelectronics. Persistent photoconductivity allows the material to become more conductive when exposed to light, increasing surface charge and directing cells to adhere.
Osaka University researchers created a non-polymeric mixture with a lower critical solution temperature, exhibiting reversible transitions between a clear solution and a suspension. The system can change color depending on its state and will be useful for developing new thermo-responsive materials.
Researchers at Kyushu University's CENTER FOR ORGANIC PHOTONICS AND ELECTRONICS RESEARCH (OPERA) reported a breakthrough in developing new organic thin-film lasers that can continuously emit light for up to 30 ms, outperforming previous devices.
Researchers at MIT have created a system that can manipulate the movement of water on a surface using visible light. The technology has potential applications in fields such as microfluidic diagnostic devices and oil-water separation, where it could enable more efficient and controlled separation of fluids.
Researchers have successfully triggered a chemical reaction in synthetic material that breaks down carbon dioxide into harmless organic materials, producing solar fuel. This process has great potential for reducing greenhouse gases linked to climate change.
Scientists at The Wistar Institute have identified a new function for ADAR1, which protects cells from dying due to stressors like UV radiation by regulating the response to apoptosis. This discovery sheds light on the role of ADAR1 in postnatal development and disease.
Researchers developed a new photoluminescent sensor material that retains properties over time and under repeated mechanical stress. The material incorporates a stress-sensing molecule into a common polymer, allowing for efficient triggering of light emission with increasing force.