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The Lead

Viagra, Other Ingredients Hide in Dietary Supplements

August 20, 2015 | by ACS | News | Comments

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.

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Lab Daily

Method Sheds Light on the Reactions Powering Fuel Cells

August 20, 2015 9:00 am | by UCLA | News | Comments

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.

Platform May Detect UTIs Faster

August 20, 2015 9:00 am | by American Institute of Physics | News | Comments

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.

Oceanographers Solve Mystery of Beach Explosion

August 20, 2015 9:00 am | by Univ. of Rhode Island | News | Comments

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.

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‘Graffiti’ Tells Tale of 500 Years of Climate Change

August 20, 2015 9:00 am | by Univ. of Cambridge | News | Comments

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.

Chemical Blueprint May Be Solution to Stone Theft

August 4, 2015 9:00 am | by Loughborough Univ. | News | Comments

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.

Oxygen Creates Detailed Architectures in Uranium Dioxide

August 4, 2015 9:00 am | by Pacific Northwest National Laboratory | News | Comments

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.

Method May Date Moon Rocks During Spaceflight

August 4, 2015 9:00 am | by Wiley | News | Comments

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.

Busted: Roundup Doesn’t Gather in Breast Milk

August 4, 2015 9:00 am | by Washington State Univ. | News | Comments

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.

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Quantum-dot Spectrometer Enables Portable Light Analysis

July 23, 2015 9:00 am | by MIT, Anne Trafton | News | Comments

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.

X-Rays, Electrons Map Catalytic Reactions in Real-time

July 23, 2015 9:00 am | by Brookhaven National Laboratory | News | Comments

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.

Nanotubes Key to Understanding Diseases

July 23, 2015 9:00 am | by Univ. of Cincinnati | News | Comments

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.

New Food Safety Method IDs Edible, Gutter Oils

July 23, 2015 9:00 am | by The Hong Kong Polytechnic Univ. | News | Comments

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.

Research Unravels Atmospheric Mysteries

July 7, 2015 9:00 am | by Univ. of Colorado Boulder | News | Comments

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.

Bacterial Fight Clubs Discover New Drugs

July 7, 2015 9:00 am | by Vanderbilt Univ. | News | Comments

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 Precisely Ages Planet-hosting Stars

July 7, 2015 9:00 am | by Aarhus Univ. | News | Comments

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.

Ants Smell of Blue Cheese

July 7, 2015 9:00 am | by NC State | News | Comments

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.

Exploiting the Potential of GPC/SEC for Polymer Analysis

June 29, 2015 7:00 am | by » by Stephen Ball, Product Marketing Manager for Nanoparticle and Molecular Characterization, Malvern Instruments, UK | Articles | Comments

The changing global economic picture, environmental pressures and growing demand for specialist applications are driving the requirement for a new generation of instrumentation for polymer development.

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X-Ray Spec Easily Analyzes Battery Components

June 25, 2015 7:00 am | by Tim Nunney, Thermo Fisher Scientific, Inc., Waltham, Mass. | Articles | Comments

X-ray photoelectron spectroscopy allows the intricate depth profiling of lithium batteries, revealing information on components and chemistries that can improve overall performance.

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Cannabis Testing Opens Up a Whole New Market

June 23, 2015 7:00 am | by Michelle Taylor, Editor-in-Chief | Articles | Comments

Given recent law and attitude changes in the United States, the cannabis industry is on the rise— which means the cannabis testing industry is likewise growing. From analyzing potency and pesticides to testing for terpenes and residual solvents, chromatography is aptly suited to the analytical needs of the cannabis testing industry.

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Sample System, MALDI Obtain High-res Images

June 22, 2015 5:31 pm | Product Releases | Comments

Shimadzu Scientific Instruments’ iMLayer matrix vapor automated sample treatment (matrix deposition) system provides a precise, high-resolution method for high spatial resolution imaging mass spectrometry.

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