Using sodium instead of lithium (which is used in many rechargeable batteries) makes the battery environmentally benign. Also, while sodium doesn’t store energy as efficiently as lithium, its low cost and use of commonly available materials would make… read more
November 11, 2014
Imagine a battery made up of billions of nanoscale batteries — the ultimate miniaturization of energy storage.
That’s what researchers at the University of Maryland (UMD) have invented, using a structure based on a nanopore: a tiny hole in a ceramic sheet that holds electrolyte to carry the electrical charge between nanotube electrodes at either end.
The researchers note in a paper in Nature Nanotechnology that such a… read more
November 6, 2009
Electrical engineers at the University of Washington have developed an implantable neural sensing chip that needs less power, drawing power from a RFID reader radio source up to a meter away.
The NeuralWISP is a collection of smaller, more low-power components, such as a specialized signal amplifier, on a circuit board just over two centimeters long. A future version will integrate all components onto a single chip that’s one… read more
September 2, 2014
A new batteryless cardiac pacemaker controlled by a self-winding wristwatch mechanism that is powered by heart motion has been developed by researchers in the Cardiovascular Engineering Group at ARTORG, University of Bern, Switzerland.
“Batteries are a limiting factor in today’s… read more
January 12, 2007
University of Cincinnati scientists have grown artificial skin cells, using collagen scaffolds. They could ultimately produce a type of artificial skin that can sweat, tan, and fight off infection more effectively.
November 12, 2012
This kind of technology could also be used eventually to send brain-computer-interface (BCI) signals to prosthetic limbs, overcoming inflammation caused by larger electrodes, resulting in damage to both the brain and the electrodes.
Existing electrodes are stiff and enormous… read more
July 20, 2007
New brain scanners promise to deliver images of higher resolution than any now available from a commercial instrument.
By using multiple sensors placed close to the head, the device can generate accurate images in less time, which could ultimately aid in the diagnosis of diseases such as Alzheimer’s and epilepsy.
MRI machines in medical centers typically have up to 12 coils, but the new devices under development have… read more
September 25, 2009
Researchers are developing genetically engineered microbial sources of biofuels that do not rely on food sources or agricultural land, unlike ethanol made from corn or sugarcane.
July 24, 2001
Highly insulating new honeycomb material may allow microelectronic integrated circuits to be made even smaller, increasing the power of microchip and computer technology.
When electronic devices get very small, insulating silica films must be shrunk to the same proportions. Too thin, they become leaky and electrical currents seep out, creating problems such as crosstalk between different parts of the circuit.
Leakage could become a problem once the dimensions of… read more
October 27, 2008
Having designed the networking protocols that launched the Internet, Vint Cerf now wants to put the same kind of robust communications network in outer space.
November 8, 2007
Cleverset thinks it has the secret to the next-generation recommendation system.
It weighs the importance of the relationship among individual shoppers, their behavior on the site, the behavior of similar shoppers, and external factors. Using these ever-changing relationships, Cleverset’s system serves up products that are statistically likely to match what the customer will find interesting.
January 20, 2015
At the annual meeting of the Association for the Advancement of Artificial Intelligence (AAAI) this month, MIT computer scientists will present smart algorithms that function as “a better Siri,” optimizing planning for lower risk, such as scheduling flights or bus routes.
They offer this example:
Imagine that you could tell your phone that you want to drive from your house in Boston to a hotel in… read more
August 23, 2010
MIT scientists have devised a synthetic surface that includes no foreign animal material and allows stem cells to stay alive and continue reproducing themselves for at least three months. It’s also the first synthetic material that allows single cells to form colonies of identical cells, which is necessary to identify cells with desired traits and has been difficult to achieve with existing materials.
The research team, led by Professors… read more
March 26, 2014
University of Wisconsin-Madison researchers have discovered a new way to make large concentrations of skeletal muscle cells and muscle progenitors from human stem cells.
The new method, described in the journal Stem Cells Translational Medicine, could be used to generate large numbers of muscle cells and muscle progenitors directly from human pluripotent stem cells. (Pluripotent stem cells, such as embryonic (ES) or induced pluripotent stem (iPS) cells,… read more
February 16, 2009
Yale University researchers have demonstrated that nanoimprint lithography molds can be created from more durable materials — an advance that could make the technique commercially viable for creating denser data storage and faster microprocessors.