A study by Ascensión Riva and colleagues reveals that darker fabric colors offer superior UV absorption, with deep blue shades providing the highest level of protection. This research could lead to more affordable and effective sun-blocking fabrics for consumers.
Researchers aim to decipher human odor chemistry for detection and classification of smells, with progress in identifying odors associated with diseases like diabetes and cancer. Scientists also explore detecting 'smell of deception' to screen and identify terrorists and criminals.
A new study suggests that China's efforts to reduce sulfur dioxide emissions may not mitigate the effects of acid rain if nitrogen emissions are not addressed. The research highlights the importance of integrating measures to reduce sulfur, nitrogen, and particulate matter in order to effectively control pollution.
Researchers have discovered a group of substances that block flavodoxin, a key protein for H. pylori survival, offering promise for new specific antibiotics against the bacteria that causes stomach ulcers and other diseases worldwide.
Scientists have developed a potential new material for diagnosing malignant melanoma with greater accuracy than current imaging agents. The substance, called fluoronicotinamides, revealed melanoma cells with high tumor-to-body contrast ratio and rapid renal clearance.
Scientists in China have discovered that a natural plant hormone can help plants eliminate residues of certain pesticides, including chloropyrifos. The substance significantly reduces toxicity and residues in the plants, making it a promising, environmentally friendly solution.
Researchers in the UK create a surface with hydrophobic and hydrophilic sections to move plastic nanoparticles quickly and in specific directions. This breakthrough could lead to advancements in treating diseases by coaxing cells to grow and heal in desired ways.
A fraction of potential vaccine supply will be ready for distribution by October, but generous pledges from nine countries and two manufacturers will help protect vulnerable populations. The H1N1 virus is expected to infect one-third of the world's population, highlighting the need for effective vaccination strategies.
Green roofs can capture more than 55,000 tons of carbon per urban area of one million people, reducing greenhouse gas emissions and fighting climate change. The study found that green roofs not only absorb CO2 but also reduce heating costs and retain stormwater.
Researchers conclude that controlled-release pills and capsules prone to dose dumping due to alcohol consumption require human testing. Formulations may pose significant overdose risks even after lab tests indicate faster release rates.
A new battery made of cellulose shows promise for powering flexible electronics, such as clothing and packaging. The battery's performance is improved by coating a conductive polymer on individual cellulose fibers, creating a nano-thin coating that enables efficient electricity storage.
A new study documents how climate, population density and factors affect GHG emissions in global cities, with Denver releasing the largest amount of gases and Barcelona the smallest. The study identifies strategies for reducing emissions, including carbon reduction and efficient transportation systems.
Researchers have created a new technology using DNA origami that can form tiny letters with multiple branching points, addressing the need for narrow features in nanoelectronics. The breakthrough could lead to the development of nanoscale devices with unprecedented capabilities.
Scientists have developed nanoparticles that can target and destroy glioblastoma multiforme (GBM) brain cancer cells using light-sensitive titanium dioxide material. The 'nanobio hybrids' killed up to 80% of brain cancer cells after exposure to focused white light, making them a promising part of brain cancer therapy.
Researchers have developed a non-invasive treatment combining high-intensity LEDs with green tea extract to reduce facial wrinkles. The study shows promising results, achieving smoother skin in one-tenth of the time it took for LED therapy alone.
Researchers found that applying a natural plant hormone can help eliminate pesticide residues from crops, reducing environmental exposure to pesticides. The study suggests using brassinosteroids as an environmentally friendly alternative to minimize pesticide risks.
Scientists have identified powerful antiviral compounds in the roots of Ferula assa-foetida, a plant used during the Spanish influenza pandemic. The sesquiterpene coumarins found in the plant showed greater potency against H1N1 flu virus than a prescription antiviral drug.
Researchers have developed a 'NanoPen' that solves the challenge of creating patterns of nanoparticles for nanotech applications. The device can deposit nanoparticles in seconds, unlike current techniques which take minutes or hours.
A study found that at least 85% of computers imported into Peru are reused, rather than going directly into recycling. The US is the source of up to 76% of used computers imported to Peru, challenging the widespread belief that e-waste is mainly about dumping unusable junk.
Researchers found that urine-based fertilizer alone can produce four times more tomatoes than non-fertilized plants, while combining with wood ash reduces acidity in acidic soils. This innovative approach provides a low-cost and chemical-free method for increasing crop yields.
A new probe identifies over 190 proteins that undergo oxidation due to ROS, offering insights into disease processes and potential targets for treatments. The discovery may lead to strategies for fighting diseases involving excessive oxidation reactions.
Researchers have developed a new lab-on-a-chip test that detects DNA with excellent sensitivity, eliminating the need for amplification, and enabling wider use of DNA testing. The nanogap sensor technology overcomes current limitations of PCR-based tests, making it a faster and more practical alternative.
A study found that kudzu root extracts improved lab rats with metabolic syndrome by lowering cholesterol, blood pressure, and insulin levels. Kudzu has been used in traditional Chinese medicine as a health food, containing isoflavones with potential health benefits.
A new study found that people's bodies handle arsenic differently, with some individuals excreting up to 95% of ingested arsenic, while others store it in their bodies, posing a risk to health. The research suggests that existing standards for evaluating human health risks from arsenic may need to be reassessed.
Researchers discovered that oxycholesterol significantly raises blood cholesterol levels and promotes atherosclerosis, increasing the risk of heart attacks and strokes. A healthy diet rich in antioxidants can counteract these effects by blocking the oxidation process that forms oxycholesterol.
Scientists have designed a painless microneedle patch that can deliver vaccines and medications through the skin, offering a potential solution to painful injections. The patch uses tiny 'microneedles' to improve treatment of diseases such as diabetes and macular degeneration.
Scientists developed a test to evaluate the performance of smudge- and reflection-resistant coatings used in smartphones. The test revealed that fluoroether content, silica, and aluminum layers enhance anti-smudge properties and reduce glare.
Scientists at National Ignition Facility will focus on limitless energy production through nuclear fusion, a potential game-changer for electricity generation. The symposium aims to advance nuclear chemistry and provide new insights into the universe.
Burning paraffin wax candles can release known human carcinogens into the air, posing health risks. Replacing them with soy or beeswax candles may provide a healthier alternative.
A new X-ray imaging technique has revealed unprecedented details of a painting hidden beneath another by famed American illustrator N.C. Wyeth. The confocal X-ray fluorescence microscope method is non-destructive and could reveal hidden images in hundreds of Old Master paintings.
A new study reveals that homes in California are a significant source of water pollution, with pollutants such as pesticides and fertilizers contaminating rivers and lakes. The study estimates that current models may underestimate the amount of pollution contributed by homes by up to 50%.
Scientists report that plastics in the ocean decompose with surprising speed, releasing potentially toxic substances like bisphenol A and PS oligomer. This discovery highlights the need for further research on plastic decomposition and its effects on marine life and human health.
In 1932, chemist Charles Holmes Herty discovered a method to create high-quality white paper from rapidly renewable southern pine trees, sparking a massive pulp and paper industry in the southeastern US. This led to thousands of new jobs, billions of dollars in economic growth, and the preservation of old-growth forests.
Scientists have developed a new vaccine production technology using tobacco plants to combat norovirus, which can spread rapidly through passenger liners and schools. The plant-based vaccine offers cost advantages and could lead to faster and more efficient vaccine development for other diseases.
A new study expands the list of hazardous chemicals in smokeless tobacco, revealing a link between snuff consumption and increased risk of oral and pancreatic cancers. The research found that users are exposed to the same amount of carcinogenic compounds as cigarette smokers, challenging the notion that smokeless tobacco is safer.
Whole grain cereals contain surprisingly large amounts of healthful antioxidant substances called polyphenols, comparable to fruits and vegetables. Raisin bran has the highest amount of antioxidants per serving due to raisins.
Poor air quality in megacities, driven by pollution and urban metabolism, has severe consequences on residents and global climate. The urban metabolism model reveals how megacities consume energy, release wastes, and pollute, impacting climate change on regional and global levels.
Researchers have copied the sandcastle worm's natural glue to create a synthetic adhesive for repairing bones, which could revolutionize fracture treatment. The new adhesive is biocompatible and twice as strong as the natural glue it mimics.
Researchers have developed a small, inexpensive lab-on-a-chip sensor that can quickly and accurately identify sweetness in various substances. The sensor uses colorimetric technology to detect sweeteners, including natural and artificial sweeteners, and can produce results in about 2 minutes.
Chemists participate in a collaborative think project to imagine and propose solutions for sustainable energy sources. The game aims to engage members in discussions and possibly even solutions for pressing global challenges.
A new analysis found that cocaine contamination is widespread in US paper money, with 95% of banknotes from Washington, D.C. containing the substance. The study suggests that cocaine abuse may be on the rise in some areas and could help raise public awareness about its use.
New study reveals the potential of plant essential oils as insecticides, offering a safer and more environmentally friendly option for organic farmers. Researchers have identified several spices, including rosemary, thyme, and clove, that can be used to control agricultural pests.
Sumita B. Mitra's research on dental materials has restored millions of decayed teeth, while William E. Mickols and John Cadotte invented filters to desalinate seawater, providing fresh water for millions worldwide. Their innovations have led to significant breakthroughs in medicine and technology.
Scientists have identified a unique chemical profile associated with human decomposition, which could lead to the development of a portable device for detecting bodies in disasters and solving crimes. This technology has the potential to revolutionize search and rescue efforts, saving countless lives.
A dry powder inhalable measles vaccine is being developed for clinical trials in India, which could save millions of lives annually. The vaccine uses a patented process called CAN-BD to create an inhalable powder that can be administered via a simple inhaler.
Scientists studying neutrino experiments aim to understand the universe's expansion, Big Bang, and potential for a 'Big Crunch.' These tiny particles' unique properties and behavior are key to unlocking fundamental physics and resolving mysteries like dark matter.
A new study has discovered that smokeless tobacco contains carcinogenic polycyclic aromatic hydrocarbons (PAH) and other hazardous chemicals, exposing users to the same level of risk as cigarette smokers. The research adds to evidence of oral and pancreatic cancer risks associated with smokeless tobacco use.
Scientists have developed an eco-friendly coating that enables consumers to wipe away oils with plain water, reducing the need for harsh detergents. The coating can be added to window cleaning sprays and used on a range of surfaces, including mirrors, windshields, and concrete floors.
Researchers are rediscovering the achievements of Arabic-speaking scientists who made groundbreaking advancements in chemistry during the 8th to 13th centuries. Their work, which was previously overlooked in the Western world, is now being recognized as a major contributor to the emergence of modern science and medicine.
Researchers have discovered new mosquito repellents that last up to three times longer than DEET, the current gold standard. The repellents do not cause skin irritation or unpleasant odors, making them a promising alternative for people sensitive to DEET.