When it comes to your living cells size does indeed matter, and a team of MIT and Harvard scientists has figured out how to measure them with unprecedented accuracy. Using a sensor that is sensitive enough to weigh a single cell, the team managed to record the rate at which cells accrue mass over time, data that could help them establish the mechanisms by which single cells grow and how those processes fail when cells turn cancerous.
Those of you who weren’t completely immersed in Duke’s nail-biter of a victory over Butler in the NCAA basketball title game last night may have noticed that Stephen Colbert had inventor and sci-tech evangelist Dean Kamen appear as the headlining guest on last night’s Colbert Report showing off the latest version of DEKA Labs’ most exciting brainchild: the Luke Arm.
Like many pieces of modern medical equipment, X-ray machines are as bulky and energy dependent as they are vital. Even "portable" X-ray machines remain too heavy to carry across rough terrain, and too energy hungry to run off batteries. That's why Radius Health's portable, low energy X-ray machine may revolutionize medicine in disaster zones, on the front lines, and at patients homes.
Inspiration comes from the strangest places. A falling apple supposedly inspired Newton’s laws, and now a desktop ornament bearing Newton’s name has inspired a new acoustic weapon that both militaries and hospitals can keep in their arsenals: sub-sinking, tumor killing “sound bullets.”
Carbon nanotubes may not be so bad for you after all. Past studies have suggested that carbon nanotubes are biopersistent -- that the human body cannot break them down -- but a team of Swedish and American researchers has discovered that an enzyme found in white blood cells can break down nanotubes into harmless water and carbon dioxide.
A new nanoprobe can slip stealthily into a cell and give researchers an opening to monitor the cell's insides for up to a week. That could make the tiny inorganic device the first to implant within a cell without damaging it.
The monetary and energy expense of HIV testing machines prevent their deployment to remote or impoverished areas; the very places that need them the most. To rectify that inequity, Palo Alto Research Center (PARC) has created a battery-operated HIV testing device the size of an iPod. The machine can return a test result in 10 minutes, and costs significantly less than the large machines used in most hospitals.
When Matthew Schiefer, a neural engineer at Case Western Reserve University in Cleveland, Ohio, first managed to stimulate the leg of an unconscious volunteer by wrapping an electrode around a nerve bundle, he knew he was on to something. Now, four years later, Schiefer has created a new kind of nerve-activating electrical interface that could allow people with paralyzed limbs to activate their legs with the push of a button.
So much for going off your meds. University of Florida researchers have created an ingestible pill capsule fitted with a tiny microchip and antenna that alerts doctors or family members each time a pill is taken. Miss a dose and you're busted.