Emerging tech

Could a shot in the arm help destroy a growing tumor? That concept is looking more and more plausible.

Scientists have been investigating the potential of vaccines to prevent various types of cancer for several years. In 2010, one study found that a single vaccination prevented breast cancer tumors from forming in mice.

A team of researchers at the National Cancer Institute's Laboratory of Tumor Immunology and Biology now is reporting in the journal Clinical Cancer Research that a vaccine might show promise in treating (as opposed to preventing) both metastatic breast cancer and ovarian cancer.

Led by cancer … Read more

Magnetic resonance imaging scanners produce images of the body using strong magnetic fields and radio waves to scan several images of the same area. By comparing these images, the scanner reveals even the most subtle abnormalities, such as young tumors.

Considering the nature of MRI scanners, it stands to reason that math might improve the time it takes to get and compare these images.

Electrical engineers and computer scientists at MIT's Research Laboratory of Electronics thought so, and they are publishing an algorithm they have devised that speeds scanning time threefold, reducing the amount of time someone would have … Read more

If you'd like a better understanding of what it takes for sperm to be considered fertile, go grab your measuring spoons and look at the quarter teaspoon. Roughly that amount of ejaculate should boast anywhere between 20 million and 150 million sperm. Anything less than 20 million and fertility just might be an issue.

So Loes Segerink, a researcher at the University of Twente in the Netherlands, has developed a "fertility chip" that can accurately count one's sperm concentration as well as measure its mobility (when discussing sperm the synonym "motility" is often used). What's more, the test can be taken at home, with the ejaculate being, ahem, collected in a more private environment.

While simple home tests are already commercially available, the concentration readings are, well, simple, and indicate only whether sperm concentration is above or below that 20 million mark. But one man's sperm concentration of 19 million is certainly more fertile than another man's count of 1 million.

Segerink, who will be defending her doctoral dissertation in November, says the sperm flows past a liquid-filled channel on the chip beneath electrode "bridges." When cells pass beneath these bridges, a brief fluctuation in electrical resistance occurs. By counting these events, the chip is counting sperm.… Read more

LONDON--Multitouch revolutionized user interfaces, and if Nokia researchers get their way, a mobile device that's sensitive to how it's being flexed could be the next revolution.

At the Nokia World show here, the Finnish mobile phone maker showed off its "Nokia kinetic device" with a flexible display. Gripped with two hands, it would scroll through music collections or photo albums when twisted. Bowing it inward or outward zoomed photos in and out or paused and played music, while tapping the corners panned through photos.

While it was a real computing device with a real OLED display, … Read more

Researchers at Stanford are developing new sensors so flexible and pressure-sensitive that they could be used to make touch-sensitive prosthetic limbs, pressure-sensitive badges, and more.

By incorporating a transparent film of carbon nano-springs, the sensor "can register pressure ranging from a firm pinch between your thumb and forefinger to twice the pressure exerted by an elephant standing on one foot," says postdoctoral researcher Darren Lipomi, co-author of a paper published October 23 in the journal Nature Nanotechnology. "None of it causes any permanent deformation."

The team built those nano-springs by airbrushing nanotubes (which are in liquid … Read more

It may be benign, but researchers have turned the virus M13 into a sophisticated engineering tool that could lead to the manufacturing of materials with biomedical properties that can be fine-tuned, such as bone, skin, and corneas.

"We took our inspiration from nature," said Seung-Wuk Lee, an associate professor of bioengineering at UC Berkeley who describes the team's self-templating material assembly process in the journal Nature. "Nature has a unique ability to create functional materials from very basic building blocks. We found a way to mimic [this]."

Lee points to the protein collagen as the … Read more

Get ready for camera 3.0. Because next year, you might have to decide whether an 11-megaray sensor is enough for your new light-field camera.

Lytro, a Silicon Valley startup, today unveiled its radical new camera--also called the Lytro. With it, the company hopes to rewrite the rules with a technology called light-field photography, but the scale of the company's ambition is matched by the scale of its challenge.

On the outside, the Lytro looks different--a smooth, two-tone elongated box 4.4 inches long and 1.6 inches square. At one end is the lens and at the other … Read more

NASA this past weekend offered up tours of its recently souped up airborne telescope, built inside a modified Boeing 747 aircraft. The Stratospheric Observatory for Infrared Astronomy, or SOFIA, is the world's largest airborne observatory.

SOFIA carries a telescope with a 100-inch reflecting mirror that conducts astronomy research not possible with ground-based telescopes, NASA said. It's normally housed at NASA's Dryden Aircraft Operations Facility in Palmdale, Calif., but CNET got to see it Friday at a press event at the NASA Ames Research Center in Mountain View, Calif.

Ames Research Center Director Pete Worden said SOFIA is … Read more

As scientists unveil artificial organs and prosthetics to improve the function of our hearts, kidneys, hands, and even eyes, it's easy to gloss over these devices' Achilles' heel: power.

Even building devices that run on very low power, such as pacemakers, tend to require additional invasive surgeries just to replace their batteries. Meanwhile, artificial limbs can be huge energy hogs, with the power source needing to be swapped out as frequently as every few weeks. Impractical is an understatement.

Biofuel cells could very well solve this problem. Researchers around the world are investigating how to use a body's own energy to power various devices, and one team out of France last year successfully implanted in a rat a biofuel cell that uses glucose and oxygen to generate electricity.… Read more