http://phys.org/chemistry-news/analytical-chemistry/ en-us Phys.org Phys.Org provides the latest news on analytical chemistry Harvard physicists have developed a novel technique that can detect molecular variants in chemical mixtures – greatly simplifying a process that is one of the most important, though time-consuming, processes in analytical chemistry. http://phys.org/news288445694.html Chemistry - Analytical Chemistry 2013-05-22T13:00:14-07:00 Early screening for prostate cancer could become as easy for men as personal pregnancy testing is for women, thanks to UC Irvine research published today in the Journal of the American Chemical Society. http://phys.org/news288433289.html Chemistry - Analytical Chemistry 2013-05-22T09:21:37-07:00 Pioneering X-ray technology is making it possible to read fragile rolled-up historical documents for the first time in centuries. http://phys.org/news287919948.html Chemistry - Analytical Chemistry 2013-05-16T10:45:57-07:00 (Phys.org) —Just a few drops of liquid or a bit more is run past specialized sensors in microfluidic devices to detect chemicals of concern to doctors and security personnel. However, these devices are now being reinvented for use in scientific instruments to answer fundamental questions, according to a review written by scientists at Pacific Northwest National Laboratory and published in Microfluidics and Nanofluidics. http://phys.org/news287827012.html Chemistry - Analytical Chemistry 2013-05-15T09:10:01-07:00 How active a living cell is can be seen by its oxygen consumption. The method for determining this consumption has now been significantly improved by chemists in Bochum. The problem up to now was that the measuring electrode altered the oxygen consumption in the cell's environment much more than the cell itself. "We already found that out twelve years ago," says Prof. Dr. Wolfgang Schuhmann from the Department of Analytical Chemistry at the Ruhr-Universität. "Now we have finally managed to make the measuring electrode an spectator." Together with his team, he reports in the "International Edition" of the journal Angewandte Chemie. http://phys.org/news287649543.html Chemistry - Analytical Chemistry 2013-05-13T08:00:01-07:00 On May 8th JoVE will publish research that demonstrates how a biosensor can detect antibiotic resistance in bacteria. This new technology is a preliminary step in identifying and fighting superbugs, a major public health concern that has led to more deaths than AIDS in the United States in recent years. The technology is the result of collaboration between Dr. Vitaly Vodyanoy at Auburn University and the Keesler Air Force Base with funding from the United States Air Force. http://phys.org/news287229884.html Chemistry - Analytical Chemistry 2013-05-08T11:04:54-07:00 Metal elements and molecules interact in the body but visualizing them together has always been a challenge. Researchers from the RIKEN Center for Life Science Technologies have developed a new molecular imaging technology that enables them to visualize bio-metals and bio-molecules simultaneously in a live mouse. This new technology will enable researchers to study the complex interactions between metal elements and molecules in living organisms. http://phys.org/news286696340.html Chemistry - Analytical Chemistry 2013-05-02T06:52:33-07:00 A revolutionary X-ray analytical technique that enables researchers at a glance to identify structural similarities and differences between multiple proteins under a variety of conditions has been developed by researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab). As a demonstration, the researchers used this technique to gain valuable new insight into a protein that is a prime target for cancer chemotherapy. http://phys.org/news286458756.html Chemistry - Analytical Chemistry 2013-04-29T12:52:50-07:00 Plants are a rich resource of bioactive compounds, many of which have inspired therapeutic drugs. Yet countless plant compounds, potentially with medical uses, still remain to be identified. Kazuki Saito, Ryo Nakabayashi and colleagues from the RIKEN Plant Science Center have now developed a technique for rapidly cataloging subsets of compounds in plant extracts based on mass spectrometry data as a first step toward a fully automated system for cataloging novel plant compounds. http://phys.org/news286184085.html Chemistry - Analytical Chemistry 2013-04-26T08:38:20-07:00 (Phys.org) —A group of researchers from Sweden have provided further evidence that illegal drugs can be detected in the breath, opening up the possibility of a roadside breathalyzer test to detect substances such as cocaine, amphetamines and cannabis. http://phys.org/news286128277.html Chemistry - Analytical Chemistry 2013-04-25T19:00:02-07:00 (Phys.org) —A range of diseases and conditions, from asthma to liver disease, could be diagnosed and monitored quickly and painlessly just by breathing, using gas sensing technology developed by a Cambridge spin-out. http://phys.org/news286094797.html Chemistry - Analytical Chemistry 2013-04-25T08:00:03-07:00 (Phys.org) —The overuse of nitrogen fertilizers in agriculture can wreak havoc on waterways, health and the environment. An international team of scientists aims to lessen the reliance on these fertilizers by helping beans and similar plants boost their nitrogen production, even in areas with traditionally poor soil quality. http://phys.org/news285833118.html Chemistry - Analytical Chemistry 2013-04-22T07:05:29-07:00 Baking the perfect loaf of bread is both a science and an art, so researchers are using Canada's only synchrotron to look at the way bubbles form in bread dough to understand what makes the perfect loaf and how gluten-free products might better resemble traditional bread. http://phys.org/news285575150.html Chemistry - Analytical Chemistry 2013-04-19T07:26:01-07:00 Sales of chicken products in China plummeted recently during an outbreak of a deadly new strain of bird flu. From bird flu to mad cow disease, numerous food scares have made global headlines in recent years. A technique developed by University of Missouri Professor of Engineering Shubhra Gangopadhyay's group may make food contamination testing more rapid and accurate. The detection test also could accelerate warnings after bioterrorism attacks. http://phys.org/news285512906.html Chemistry - Analytical Chemistry 2013-04-18T14:08:35-07:00 A bioengineering research team from the National University of Singapore (NUS) team led by Associate Professor Zhang Yong has developed a novel microfluidic device for efficient, rapid separation and detection of non-spherical bioparticles. Microfluidic devices deal with the behavior, precise control and manipulation of fluids that are geometrically constrained to sub-millimeter scale. This new device, which separates and detects non-spherical bioparticles such as pathogenic bacteria and malaria infected red blood cells, can potentially be used for rapid medical diagnostics and treatment. http://phys.org/news285235297.html Chemistry - Analytical Chemistry 2013-04-15T09:01:43-07:00 (Phys.org) —Continued advancements using a NIST-developed molecular-level fabrication technique are leading to new discoveries in the metrology for molecular electronics by advancing large-area (μm to mm range) connections to molecules (nm range). Researchers in the PML's Semiconductor and Dimensional Metrology Division have been able to build a simple bilayer molecular circuit, combining separately formed monolayers of organic materials on silicon and gold surfaces respectively to create a fully characterized molecular level device. Further, they were able to place copper atoms at specific locations within the bilayer device to test their influence on its electronic properties. http://phys.org/news284974003.html Chemistry - Analytical Chemistry 2013-04-12T09:20:01-07:00 (Phys.org) —Forensic scientists at the University of Abertay Dundee have recovered latent fingerprints from foods – publishing the UK's first academic paper on this subject. http://phys.org/news284921230.html Chemistry - Analytical Chemistry 2013-04-11T17:47:19-07:00 In the latest achievement in efforts to see what may lie underneath the surface of great works of art, scientists today described the first use of an imaging technology like that used in airport whole-body security scanners to detect the face of an ancient Roman man hidden below the surface of a wall painting in the Louvre Museum in Paris. http://phys.org/news284826558.html Chemistry - Analytical Chemistry 2013-04-10T15:29:25-07:00 (Phys.org) —New research from Western University challenges long-held beliefs regarding the demise of Sir John Franklin's ill-fated Northwest Passage expedition that departed from England in 1845. http://phys.org/news284710768.html Chemistry - Analytical Chemistry 2013-04-09T07:19:40-07:00 Swiss researchers could show that exhaled human breath contains a characteristic molecular "fingerprint". The scientists want to use this finding to diagnose diseases based on the chemical analysis of patient's exhaled breath, using highly sensitive and precise instrumental methods. http://phys.org/news284226849.html Chemistry - Analytical Chemistry 2013-04-03T17:00:04-07:00 (Phys.org) —Researchers at Sandia National Laboratories are developing a medical instrument that will be able to quickly detect a suite of biothreat agents, including anthrax, ricin, botulinum, shiga and SEB toxin. http://phys.org/news284107404.html Chemistry - Analytical Chemistry 2013-04-02T07:43:38-07:00 Current methods of detecting microRNA (miRNA)—gene-regulating molecules implicated in the onset of various diseases—can be time-consuming and costly: The custom equipment used in such tests costs more than $100,000, and the limited throughput of these systems further hinders progress. http://phys.org/news283758342.html Chemistry - Analytical Chemistry 2013-03-29T06:45:51-07:00 For the first time, scientists measured the chemical diffusivity and viscosity of atmospheric organic particles, thanks to a new approach from scientists at Pacific Northwest National Laboratory, University of Washington, and Imre Consulting. The team doped atmospherically important organic nanoparticles, known as secondary organic aerosols (SOAs), with tracer molecules and measured their diffusion rate as they slowly worked their way out of the particles. Knowing the diffusion rate, the scientists calculated the particle's viscosity. http://phys.org/news283678952.html Chemistry - Analytical Chemistry 2013-03-28T08:42:48-07:00 White blood cells, or leukocytes, are the immune system's warriors. So when an infection or disease attacks the body, the system typically responds by sending more white blood cells into the fray. This means that checking the number of these cells is a relatively easy way to detect and monitor such conditions. http://phys.org/news283509894.html Chemistry - Analytical Chemistry 2013-03-26T09:45:01-07:00 (Phys.org) —With a novel technique that noninvasively analyzes microbes, scientists at Pacific Northwest National Laboratory profiled, for the first time, the chemicals that a cyanobacterium makes available to others. Over 4 days, Synechococcus sp. PCC 7002 steadily secretes two molecules that could be used as resources by other bacteria that are nearby. The technique that chemically profiles the microbial communities in both space and time is Nanospray Desorption Ionization Electrospray Mass Spectrometry, or nano-DESI. This instrument was built by Dr. Julia Laskin and her team at Pacific Northwest National Laboratory. This research graced the cover of Analyst. http://phys.org/news283072588.html Chemistry - Analytical Chemistry 2013-03-21T08:30:02-07:00 (Phys.org) —Chemists at the University of Bath have developed a new system to monitor levels of blood glucose, which could in the future help save the lives of patients in intensive care. http://phys.org/news282977451.html Chemistry - Analytical Chemistry 2013-03-20T06:30:02-07:00 Early detection is vital for the effective treatment of cancer. In many cases, tell-tale biomarkers are present in the bloodstream long before outward symptoms become apparent. Early-stage cancers, for example, release tiny quantities of biomolecules called microRNAs into the blood. The development of an inexpensive and rapid point-of-care diagnostic test capable of spotting such early biomarkers of disease could therefore save many lives. A research team in Japan working on developing such a test has now produced their most sensitive microRNA detector yet. http://phys.org/news281953396.html Chemistry - Analytical Chemistry 2013-03-08T08:40:01-07:00 Radioactive caesium 137 has a half-life of 30.17 years, and its accumulation in organisms in exposed regions, such as around the Fukushima Daiichi nuclear plant, amplifies the hazard it poses. A new material reported by researchers in Japan may help. http://phys.org/news281696370.html Chemistry - Analytical Chemistry 2013-03-05T09:01:17-07:00 Bird feathers appear to be simplistic structures, but a catalogue of chemicals and environmental contaminants resides deep inside them, scientists report. And these can be used to measure a bird's health. http://phys.org/news281694788.html Chemistry - Analytical Chemistry 2013-03-05T08:50:02-07:00 (Phys.org)—The perennial stress-buster—a deep breath—could become stress-detector, claims a team of researchers from the UK. http://phys.org/news281208406.html Chemistry - Analytical Chemistry 2013-02-27T19:00:02-07:00