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Latest Washington University Stories

2013-04-12 13:30:19

Using a miniature electronic device implanted in the brain, scientists have tapped into the internal reward system of mice, prodding neurons to release dopamine, a chemical associated with pleasure. The researchers, at Washington University School of Medicine in St. Louis and the University of Illinois at Urbana-Champaign, developed tiny devices, containing light emitting diodes (LEDs) the size of individual neurons. The devices activate brain cells with light. The scientists report their...

Wang's Technology Might Answer A Multitude Of Medical Questions
2013-03-25 15:09:02

Washington University in St. Louis [ Watch The Video Red Blood Cells Bifuracating in Capillary ] In an engineering breakthrough, a Washington University in St. Louis biomedical researcher has discovered a way to use light and color to measure oxygen in individual red blood cells in real time. The technology, developed by Lihong Wang, PhD, the Gene K. Beare Distinguished Professor of Biomedical Engineering, could eventually be used to determine how oxygen is delivered to normal and...

2013-03-11 23:01:28

New strain of bacteria may clear up acne Probiotic Action explains the new research findings from Washington University. Miami, FL (PRWEB) March 11, 2013 Probiotic Action, known for the best acne treatment reports that George Weinstock, associate director of the Genome Institute at Washington University in Saint Louis, claims that studies of P.acnes bacteria genes, (the bacteria known to cause acne) have shown signs of a bacteria stand which may be responsible for preventing acne. In the...

Emerging Cancer Drugs May Cause Bone Tumors To Spread
2013-02-13 16:49:20

Washington University in St. Louis Cancer drugs should kill tumors, not encourage their spread. But new evidence suggests that an otherwise promising class of drugs may actually increase the risk of tumors spreading to bone, according to researchers at Washington University School of Medicine in St. Louis. The drugs, IAP antagonists, block survival signals that many cancer cells rely on to stay alive. Working in mice, the investigators found that targeting the same protein that makes...

Research Confirms Massive Louisiana Mound Was Built By Archaic Native Americans In Less Than 90 Days
2013-01-31 09:35:07

Washington University in St. Louis Nominated early this year for recognition on the UNESCO World Heritage List, which includes such famous cultural sites as the Taj Mahal, Machu Picchu and Stonehenge, the earthen works at Poverty Point, La., have been described as one of the world´s greatest feats of construction by an archaic civilization of hunters and gatherers. Now, new research in the current issue of the journal Geoarchaeology, offers compelling evidence that one of the...

Scientific Balloon Record Shattered By Super-TIGER
2013-01-23 09:53:00

Washington University in St. Louis Before he left for Antarctica in November, W. Robert Binns, principal investigator for Super-TIGER, said that he would be deliriously happy if the balloon carrying the cosmic-ray detector stayed up 30 days. It has now been up 45 days, floating serenely in the polar vortex registering hits by cosmic rays. Over the weekend it shattered the previous record of 42 days set by Cream I, another cosmic ray experiment that flew during the winter of 2004-2005....

Effect Of Invasive Plants On Species Richness Depends On Scale
2013-01-17 14:41:43

Washington University in St. Louis In Missouri forests, dense thickets of invasive honeysuckle decrease the light available to other plants, hog the attention of pollinators, and offer nutrient-stingy berries to migrating birds. They even release toxins to make it less likely native plants will germinate near them. Why, then, are recent popular science articles recommending a recalibration of the traditional no-tolerance attitude toward non-native species, suggesting that we´ve...

'BRIGHTS' Reveal Location Of Targeted Tissues
2012-11-21 10:41:38

Washington University in St. Louis Called BRIGHTs, the tiny probes described in the online issue of Advanced Materials on Nov. 15, bind to biomarkers of disease and, when swept by an infrared laser, light up to reveal their location. Tiny as they are, the probes are exquisitely engineered objects: gold nanoparticles covered with molecules called Raman reporters, in turn covered by a thin shell of gold that spontaneously forms a dodecahedron. The Raman reporters are molecules whose...

2012-11-15 12:31:00

Semester Online(TM) will be first of its kind featuring rigorous, innovative, live courses LANDOVER, Md., Nov. 15, 2012 /PRNewswire-USNewswire/ -- Today, a group of the nation's leading universities announced plans to launch a new, innovative program that transforms the model of online education. Consortium members include Brandeis University, Duke University, Emory University, Northwestern University, The University of North Carolina at Chapel Hill, University of Notre Dame,...

Bacterial Genes Make A Complex Logic Circuit
2012-10-13 11:27:12

The circuit is designed to act as the controller in synthetic bacteria that monitor and modify their environment By force of habit we tend to assume computers are made of silicon, but there is actually no necessary connection between the machine and the material. All that an engineer needs to do to make a computer is to find a way to build logic gates – the elementary building blocks of digital computers – in whatever material is handy. So logic gates could theoretically be...