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Using chemical "nanoblasts" that punch tiny holes in the protective membranes of cells, Georgia Tech researchers have demonstrated a new technique for getting therapeutic small molecules, proteins, and DNA directly into living cells. The work is believed to be the first to use activation of reactive carbon nanoparticles by lasers for medical applications.
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A sniffing-based device developed at the Weizmann Institute of Science in Israel may enable disabled people to navigate wheelchairs or communicate with loved ones. The system identifies changes in air pressure inside the nostrils and translates these into electrical signals. In the future, researchers predict that this technology may even be used to create a "third hand" to assist healthy surgeons or pilots.
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A new vaccine-delivery patch based on hundreds of microscopic needles that dissolve into the skin could someday allow people without medical training to painlessly administer vaccines. The new patch could also help prevent unsafe reuse of hypodermic needles, particularly in parts of the world with poor medical infrastructure.
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Developed at the University of Sussex, the Electric Potential Sensors (EPS) are the first electrical sensors that can detect precisely the electrical activity of the heart without direct resistive contact with the body. The new sensors can detect a heartbeat up to a meter away, and make monitoring a patient's heartbeat easier and less invasive than before.
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Researchers from Rice University and the University of Texas M.D. Anderson Cancer Center have used an off-the-shelf digital camera to create an inexpensive device that is powerful enough to let doctors easily distinguish cancerous cells from healthy cells, simply by viewing the LCD monitor on the back of the camera.
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A new ultrasensitive medical imaging technique developed at Purdue University uses a pulsed laser and tiny metallic "nanocages" to enable both the early detection and treatment of disease. The system works by shining near-infrared laser pulses through the skin to detect hollow nanocages and solid nanoparticles that are injected into the bloodstream.
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TOUCH-FREE WIRELESS SENSING UC San Diego electrical engineering PhD student Yu Mike Chi has developed a wireless sensor that records "biopotentials" - tiny voltage signals that appear on the skin surface - without touching the skin. Biopotentials emanate from electrically active cells, such as neurons and cardiac cells, and propagate through the conductive media of the human body.
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