To lose weight, boost energy or soothe nerves, many consumers turn to dietary supplements. But some of these products contain undeclared substances. To protect consumers from taking something without their knowledge, scientists have developed a technique to determine what secret ingredients could be lurking in these supplements.
Researchers have developed a dramatically advanced tool for analyzing how chemicals called nanocatalysts convert chemical reactions into electricity. Current spectroscopy methods require large laboratory machines to measure chemical reactions, but a new technique uses a nanoelectronic chip to do the same thing while the reactions are taking place— which previously was very difficult— with better accuracy.
Urinary tract infections (UTIs) can quickly move from being a merely miserable experience to a life-threatening condition. Untreated cases may trigger sepsis a major killer that accounts for about half of the hospital deaths in the U.S. by some estimates. A team has described creating a lab-on-a-disc platform that combines microfluidics and Raman microscopy to spot UTIs quickly.
When an explosion beneath the sand at Salty Brine State Beach in Narragansett, Rhode Island, injured a visiting vacationer, state and local police and the bomb squad found no evidence of what may have caused the blast. State officials then turned to scientists. It didn’t take long before they solved the mystery.
Unique inscriptions found in a cave in China, combined with chemical analysis of cave formations, show how droughts affected the local population over the past five centuries, and underline the importance of implementing strategies to deal with climate change in the coming years.
Rural parts of Britain have been experiencing a surge in stone thefts recently, including paving slabs and garden ornaments. Scientists hope their early trials of a new chemical blueprint technique could assist a crackdown on stone theft.
Corrosion follows a different path when it comes to uranium dioxide, the primary component of the rods that power nuclear reactors, according to a new study. In uranium dioxide, the oxygen atoms— key corrosion creators— do not diffuse randomly through the material.
Many of the techniques used to date rocks on Earth are not practical in spaceflight. So, researchers are developing instruments and methods for measuring the ages of rocks encountered during space missions to the Moon or other planets.
Scientists have found that glyphosate, the main ingredient in the herbicide Roundup, does not accumulate in mother’s breast milk. The EPA is using the study as part of an ongoing review of glyphosate regulations prompted by public concern over a controversial report on the chemical released by the advocacy group, Moms Across America, last year.
Instruments that measure the properties of light, known as spectrometers, are widely used in physical, chemical and biological research. These devices are usually too large to be portable, but scientists have shown they can create spectrometers small enough to fit inside a smartphone camera, using tiny semiconductor nanoparticles called quantum dots.
A new technique reveals atomic-scale changes during catalytic reactions in real-time and under real operating conditions. A team of scientists used a newly developed reaction chamber to combine x-ray absorption spectroscopy and electron microscopy for an unprecedented portrait of a common chemical reaction.
Cancer researchers are collaborating with material scientists to create and use nanotubes to capture and understand the regulation of proteins involved in a variety of diseases including certain cancers, cardiovascular diseases and obesity.
Authentication of edible oils has been a long-term issue in food safety, and became particularly important with the emergence and widespread use of gutter oils in recent years. Now, researchers have developed a new method for rapid authentication of edible oils and screening of gutter oils.
It’s been difficult to explain patterns of toxic mercury in some parts of the world, such as why there’s so much of the toxin deposited into ecosystems from the air in the southeastern U.S., even upwind of usual sources. But, a new analysis shows that one key to understanding mercury’s strange behavior may be the unexpected reactivity of naturally occurring halogen compounds from the ocean.
Creating bacterial “fight clubs” is an effective way to find new drugs from natural sources. That is the conclusion of a team of chemists who have been exploring ways to get bacteria to produce biologically active chemicals that they normally hold in reserve.
Research studying 33 stars found that even stars older than 11-billion-years have Earth-like planets. This constitutes the best characterized set of exoplanet host stars currently available.
If you live in the U.S., you’ve probably seen an odorous house ant– one of the most common ants in the country. For more than 50 years, they’ve been described as smelling like rotten coconut. But they don’t.
Chemists have separated and weighed virus particles using mass spectrometry (MS). This is the first time that researchers successfully used matrix-assisted laser desorption ionization MS to analyze a mixture of intact virus particles.
A team of biologists and a mathematician has identified and characterized a network composed of 94 proteins that work together to regulate fat storage in yeast. The find suggests that yeast could serve as a valuable test organism for studying human obesity.
Good quality and precision are essential– a dictum that also applies to products from the pharmaceutical and chemical industry. While the quality of chemical products is often still being monitored manually during the production process, a laser-based system could take over this task in future, allowing for a continuous monitoring in real time.
Scientific intervention is needed in the growing field of food authenticity to ensure consumers are purchasing exactly what they expect. Food authentication, especially for items such as honey and olive oil, is becoming more prevalent due to a rise in counterfeiting and mislabeling.