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Washington University in St. Louis

Medical

Dissolvable sensors could soon be used to wirelessly monitor the human brain

Even though as many as 50,000 people die of traumatic brain injuries in the United States every year, the equipment used to measure vital stats like intracranial pressure is usually made up of decades-old technology. To address this, researchers at the University of Illinois at Urbana-Champaign and the Washington University School of Medicine in St. Louis have created a new sensor that's far less invasive and much safer than the existing technology.Read More

Biology

Tomato growth boosted with a spray of nanoparticles

Fans of The Simpsons may recall Lisa using genetic engineering to create a super tomato that she hoped would cure world hunger. Now researchers at Washington University in St. Louis (WUSTL) have come close to the real thing, not through genetic engineering, but with the use of nanoparticles. Although the individual fruit aren't as large as Lisa's creation, the team's approach has resulted in tomato plants that produced almost 82 percent more fruit by weight, with the fruit also boasting higher antioxidant content.Read More

Science

World's fastest 2D camera captures 100 billion frames per second

Researchers at Washington University in St.Louis have built what they claim is the world's fastest 2D receive-only camera, which is able to capture images at a rate of up to 100 billion frames per second. Using a technique called Compressed Ultrafast Photography (CUP), the researchers have so far taken photographs of a number of properties of light propagation and behavior that are already pushing the dimensional limits of fundamental physics.Read More

Medical

LEDs may replace magnetism and radiation for neuroimaging

When doctors want to monitor someone's brain activity, they generally use either functional magnetic resonance imaging (fMRI) or positron emission tomography (PET). One subjects the patient to strong magnetic fields, while the other involves radiation exposure. Scientists at Washington University in St. Louis, however, have recently had success using diffuse optical tomography (DOT). Although it may look kind of extreme, it basically just involves shining LEDs into the subject's head. Read More

Medical

Electronic membrane could provide high-res heart care

When it comes to monitoring the electrical activity of the heart, or delivering electrical stimulation to it (as in the case of pacemakers), most current technologies rely on electrodes that make contact with the organ in just a few locations. That doesn't necessarily provide a very detailed picture of what's going on, nor does it deliver stimulation all that evenly. Now, scientists have created a sensor-laden three-dimensional elastic membrane that can be pulled over the whole heart, to provide a large number of contact points.Read More

Medical

Device helps surgeons see cancer cells during operations

When doctors are operating on a patient to remove a cancer, they face a major challenge: telling healthy and cancerous cells apart. But a new device being developed by researchers at Washington University in St. Louis' School of Medicine could provide a safe, affordable and portable solution. Read More

Health & Wellbeing

New type of electrotherapy makes implantable defibrillators less shocking

While regular pacemakers attempt to rectify arrhythmias (irregular heart beat rhythms) using constantly-delivered electric pulses, implantable cardioverter defibrillators do something a bit different. As long as everything stays normal, they don’t do any shocking – when they detect a dangerously fast heart beat, however, they respond by delivering a massive jolt of electricity to the heart. While this may save the patient’s life, it’s also very traumatic and painful. Now, a team of scientists from Washington University in St. Louis may have come up with a solution to that problem. Read More

Science

Earth destroyed repeatedly in the name of science

Unlike in old B movies, real scientists don’t scream “Fools! I’ll destroy them all!” before throwing the switch on their doomsday device. At least, most of the them don’t. However, the August 10 issue of the Astrophysical Journal reports that a team of scientists are working on destroying the world - not once, but repeatedly. Fortunately, the world they’re destroying exists only in a computer simulation and its destruction is in the service of learning more about planets revolving around other stars.Read More

Medical

Nerve detour restores partial hand function in quadriplegic patient

It's been a good news week for those suffering debilitating spinal injuries. First we looked at a breakthrough that enables quadriplegic patients to move robotic arms using just their thoughts and now, in related news, surgeons at the Washington University School of Medicine have reported the successful rerouting of working nerves in the upper arms of a quadriplegic patient, restoring some hand function.Read More

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