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Viagra, Other Ingredients Hide in Dietary Supplements

August 20, 2015 | by ACS | 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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Physicists Use Beams of Antimatter to Investigate Advanced Materials

November 11, 2015 4:01 pm | by The University of Texas at Arlington

Researchers are developing a next generation positron beam facility that will enable them to analyze the properties of advanced materials for future electronics applications, such as ultra compact high-speed computers and ultra small high-powered batteries.

Protein-RNA Structure Hints at How Viruses Commandeer Human Proteins

November 11, 2015 3:22 pm | by Case Western Reserve University

Researchers at Case Western Reserve University and the University of Michigan have produced the first image of an important human protein as it binds with ribonucleic acid (RNA), a discovery that could offer clues to how some viruses, including HIV, control expression of their genetic material.

Metabolite Maps Provide More Info, Can Help Reduce Harvest Loss

November 11, 2015 2:57 pm | by Wageningen University

It is possible to make metabolite maps of living plant tissues both quickly and accurately by using laser ablation electrospray ionization mass spectrometry imaging.


Method IDs Up to Twice as Many Proteins, Peptides in MS Data

November 11, 2015 2:50 pm | by UCSD

An international team of researchers developed a method that identifies up to twice as many proteins and peptides in mass spectrometry data than conventional approaches. The method can be applied to a range of fields.

Eight-carat Diamond Smashed in the Name of Science

November 11, 2015 2:39 pm | by University of Melbourne

At the University of Melbourne, a rare, eight-carat diamond has been smashed to smithereens in a bid to discover the secrets of its origin and a potential "mother lode" of diamonds.

Spectrometer Development Inspires New Camera for Lowlight Photography

October 29, 2015 2:55 pm | by University of Utah

A researcher has developed a new camera color filter that lets in three times more light than conventional filters, resulting in much cleaner, more accurate pictures taken in lowlight. The new filter can be used for any kind of digital camera.

Fruit Fly Pheromone Flags Great Real Estate for Starting a Family

October 29, 2015 2:45 pm | by Johns Hopkins University School of Medicine

In what they say was a lucky and unexpected finding, researchers at Johns Hopkins say they’ve discovered that male fruit flies lay down an odorant, or pheromone, that not only attracts females to lay eggs nearby, but also guides males and females searching for food. 

Wastewater Treatment Plants Fail to Eliminate New Chemical Compounds

October 29, 2015 2:35 pm | by University of the Basque Country

A new study indicates that the most polluted waters, the ones with the highest levels of bioconcentration, the highest percentage of intersex fish, etc., exist around wastewater treatment plants. Most of these plants are not equipped to eliminate compounds, because legislation in this matter has yet to catch up with the development of the chemical industry.


Tiny Invention Could Revolutionize Analytical Chemistry

October 29, 2015 2:29 pm | by FIU

Just 2 centimeters long and 2 millimeters in diameter, a sorbent tube invented by an FIU researcher could bring analytical chemistry to the masses. The simple yet highly sensitive device is designed to sample volatile chemicals in the air, your home, food and even your body.

Platform Reveals Fundamental Flaw in GC-MS Analysis

October 29, 2015 2:26 pm | by The Scripps Research Institute

A new study led by scientists at The Scripps Research Institute (TSRI) shows that a technology used in thousands of laboratories, gas chromatography mass spectrometry (GC-MS), fundamentally alters the samples it analyzes.


Human-like Nose Can Sniff Out Contamination in Drinking Water

October 7, 2015 10:56 am | by Elsevier

A bioelectronic nose that mimics the human nose can detect traces of bacteria in water by smelling it, without the need for complex equipment and testing. The sensor is simple to use and it can detect tiny amounts of contamination in water, making it more sensitive than existing detection methods.

Chromatography Provides New Way to Peer into Pores

October 7, 2015 10:43 am | by Rice University

The Rice lab of chemist Christy Landes invented a technique to characterize such nanoscale spaces, an important advance toward her group’s ongoing project to efficiently separate “proteins of interest” for drug manufacture. It should also benefit the analysis of porous materials of all kinds, like liquid crystals, hydrogels, polymers and even biological substances like cytosol, the compartmentalized fluids in cells.

Real-time Analysis of Metabolic Products

October 7, 2015 10:34 am | by ETH Zurich

Biologists at ETH Zurich have developed a method that, for the first time, makes it possible to measure concentration changes of several hundred metabolic products simultaneously, and almost in real-time. The technique could inspire basic biological research and the search for new pharmaceutical agents.

Rock Samples from Western U.S. Show How to Hunt for Life on Mars

October 7, 2015 10:31 am | by University of Kansas

Researchers analyzed Eocene rocks found in the Green River Formation, a lake system extending over parts of Colorado, Utah and Wyoming. These Green River rocks have features that visually indicate the presence of life, and they argue that probes to Mars should identify similar indicators on that planet and double-check them through chemical analysis.


Cellular Contamination Pathway for Plutonium, Other Heavy Elements, Identified

September 3, 2015 12:02 pm | by Lawrence Berkeley National Laboratory

​Scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) have reported a major advance in understanding the biological chemistry of radioactive metals, opening up new avenues of research into strategies for remedial action in the event of possible human exposure to nuclear contaminants.

New Approach to ID Toxic Compounds in Everyday Materials

September 3, 2015 11:58 am | by NSF

For decades, a particular class of toxic chemicals was added to everything from clothing to carpeting to fire-fighting foams to make them stain- or water-resistant or nonstick--until scientists discovered the compounds were toxic. But how can we be sure that the raw materials those companies obtain, like the fabric for a shirt, aren't already tainted with them?

X-rays Reveal Fossil Secrets

September 3, 2015 11:51 am | by University of Bristol

A sophisticated imaging technique has allowed scientists to virtually peer inside a 10-million-year-old sea urchin, uncovering a treasure trove of hidden fossils. The international team of researchers from the United Kingdom, Spain and Germany, including Dr Imran Rahman from the University of Bristol, studied the exceptional specimen with the aid of state-of-the-art X-ray computed tomography (CT).

Comet Impacts Kickstarted Chemical Evolution in the Solar System

September 1, 2015 9:00 am | by European Association for Geochemistry

Comet impact on Earth are synonymous with great extinctions, but now research shows that early comet impact would have become a driving force to cause substantial synthesis of peptides– the first building blocks of life. This may have implications for the genesis of life on other worlds.

Bacteria May Exploit Methane, Protect Environment

September 1, 2015 9:00 am | by Newcastle Univ.

New insight into methanotrophs, bacteria that can oxidize methane, may help us develop an array of biotechnological applications that exploit methane and protect our environment from this potent greenhouse gas.

Method Sheds Light on the Reactions Powering Fuel Cells

August 20, 2015 9:00 am | by UCLA

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.


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