Microscale medical sensors inserted under skin can be powered wirelessly by external handheld receiver
Implantable electronic devices potentially offer a rapid and accurate way for doctors to monitor patients with particular medical conditions. Yet powering such devices remains a fundamental challenge: batteries ...
Mar 27, 2013
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Exercise during gestation might affect future fertility
A short walk around the barn might improve the future fertility of Yorkshire gilts. According to research presented by Samantha Kaminski, a graduate student at North Dakota State University, swine fetuses showed significant ...
Mar 12, 2013
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Mussel goo inspires blood vessel glue
(Phys.org)—A University of British Columbia researcher has helped create a gel – based on the mussel's knack for clinging to rocks, piers and boat hulls – that can be painted onto the walls of blood vessels and stay ...
Dec 11, 2012
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New technique for visualizing blood flow involves carbon nanotubes and lasers
(Phys.org)—Stanford scientists have developed a fluorescence imaging technique that allows them to view the pulsing blood vessels of living animals with unprecedented clarity. Compared with conventional ...
Dec 02, 2012
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First-ever 3-D stress map of developing embryonic heart sheds light on why defects form
As a human fetus develops, its heart has to keep pace with the new body's ever-growing demands. Much of this is controlled by following genetic blueprints, but the embryonic heart also matures in response ...
Oct 31, 2012
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Ceria nanoparticles could lessen the damage from ischemic strokes
(Phys.org)—The most common form of strokes are caused by a sudden reduction in blood flow to the brain (ischemia) that leads to an inadequate supply of oxygen and nutrients. These so-called ischemic strokes ...
Sep 14, 2012
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New insights into how vascular networks form in fish brains
How the intricate network of blood vessels forms within the brain has long fascinated biologists. Though the human brain comprises only 2 percent of body weight it receives up to 15 percent of the cardiac output through this ...
Aug 14, 2012
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Nanotechnologists develop a 'time bomb' to fight cardiovascular disease
Atherosclerosis, resulting in a narrowing of the arteries and the development of cardiovascular disease, is the leading cause of death worldwide. Until now, no treatment could target diseased areas exclusively, in order to ...
Jun 10, 2012
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Solution proposed to suffering caused by horse nosebands
(PhysOrg.com) -- Nosebands on horse bridles are being tightened so much in some equestrian competitions that horses are suffering stress, reduced blood flow in the area and ultimately even deformed nasal bones, ...
Feb 22, 2012
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British group unveils facial reading lie-detector
(PhysOrg.com) -- A British team of researchers led by Professor Hassan Ugail of Bradford University have demonstrated a new type of lie-detector at the annual British Science Festival in Bradford. Instead of hooking people ...
Sep 14, 2011
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FDA clears Siemens' 2-in-1 medical scanner
(AP) -- The Food and Drug Administration says it has cleared the first medical imaging device to simultaneously perform two powerful scans used to diagnose a wide variety of diseases and ailments.
Jun 10, 2011
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Bacteria use caffeine as food source
A new bacterium that uses caffeine for food has been discovered by a doctoral student at the University of Iowa. The bacterium uses newly discovered digestive enzymes to break down the caffeine, which allows it to live and ...
May 24, 2011
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Tiny turbine in human artery harvests energy from blood flow
(PhysOrg.com) -- A small turbine located inside a millimeters-wide human artery could harvest enough energy from blood flow to power implanted medical devices, such as pacemakers and drug-delivery pumps. The ...
May 20, 2011
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Brain bypass surgery sparks restoration of lost brain tissue
Neurosurgeons at the Krembil Neuroscience Centre, Toronto Western Hospital, have for the first time, initiated the restoration of lost brain tissue through brain bypass surgery in patients where blood flow to the brain is ...
Apr 18, 2011
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