Emerging tech

BERLIN--Panasonic has offered high-end 3D videocameras as part of its effort to advance the premium technology, but now it's begun showing off a prototype for a 3D model from its Lumix line of still cameras.

"We are also developing a 3D compact camera for this winter," Takuya Sugita, vice president of Panasonic's AVC Networks Company, said here this week at a press conference at the IFA electronics show, which officially starts today. The company showed two prototypes under glass at the show.

The company has offered a couple tidbits about the coming 3D Lumix camera: it … Read more

Radiation therapy requires oxygen to be effective, which makes cancers that tend to be hypoxic (meaning they are deprived of oxygen)--such as pancreatic and cervical cancers--harder to treat. (Tumors can become hypoxic for a few reasons, e.g. they grow so quickly they actually outgrow blood supply, or cells proliferate so many times that the density taxes the available oxygen.)

So researchers at Purdue have been building and testing tiny devices that can be implanted in tumors and then generate oxygen, thereby making the area far more susceptible to radiation and chemotherapy.… Read more

As anyone who has broken a bone knows, keeping up with physical therapy post-injury can be painful and annoying, and without a clear way to gauge progress, the regimen is as tempting to avoid as a bland diet.

Recent Copenhagen Institute of Interaction Design graduate Pedro Nakazato Andrade hopes to keep people motivated--and thus improve recovery time--via a prototype cast that employs electromyographic sensors, which measure the electrical activity produced by a muscle when it moves.

Called "Bones," his cast prototype can keep a running tally of how much the injured area is being exercised.

The idea behind the design is rooted in the idea behind weight loss programs such as Weight Watchers: people who can track their progress using real, hard data are more likely to stay motivated and keep doing what they have been told to do.… Read more

A passive prosthetic leg, says 23-year-old amputee Craig Hutto, is always a step behind. But a new leg built by researchers at Vanderbilt University "is only a split-second behind."

Hutto, who is 6 feet 4 inches, has been testing the bionic leg for a good chunk of the seven-year research project at the school's Center for Intelligent Mechatronics. (Check out his crazy story about how a shark nearly tore off his leg when he was fishing in Florida at age 16.)

What sets the Vanderbilt leg apart from its predecessors is its use of recent advances in computer, sensor, electric motor, and battery tech to enable the prosthetic to be the first ever that powers knee and ankle joints in unison.

"We have validated our hypothesis that the right technology was available to make a lower-limb prosthetic with powered knee and ankle joints," says research head Michael Goldfarb, a professor of mechanical engineering, in a news release. "Our device illustrates the progress we are making in integrating man and machine."

The device weighs in at 9 pounds, which is actually less than most human lower legs. On one charge, it can operate at normal levels of activity for roughly three days. And it features an "anti-stumble" routine; if the leg senses that its user is starting to stumble, the leg lifts to avoid obstruction and plants on the floor to optimize balance.… Read more

Engineers at the University of Illinois today unveiled novel, skin-mounted electronics this week whose circuitry bends, wrinkles, and even stretches with skin.

The device platform includes electronic components, medical diagnostics, communications, and human-machine interfacing on a patch so thin and durable it can be mounted to skin much like a temporary tattoo.

What's more, the team was able to demonstrate its invention across a wide range of components, including LEDs, transistors, wireless antennas, sensors, and conductive coils and solar cells for power.

"We threw everything in our bag of tricks onto that platform, and then added a few … Read more

Researchers have invented a silicone lab on a chip they say could make genetic analysis far more sensitive--not to mention rapid and cost-effective--by routing fluid through microscopic tubes and valves, and allowing individual cells to fall into place much like balls in a pinball machine.

Standard genetic testing involves vast numbers of cells that, when analyzed, provide a sort of composite picture that cannot reveal the behaviors of individual cells.

"It's like trying to understand what makes a strawberry different from a raspberry by studying a blended-fruit smoothie," said Carl Hansen, an assistant professor who led the … Read more

Scientists at Case Western Reserve University in Cleveland have designed an artificial lung that uses air instead of pure oxygen as a ventilating gas--an advance that could turn accompanying oxygen cylinders into relics of the past.

What's more, the device for use in humans could come in at just 6x6x4 inches, which is roughly the volume of the real human lung, meaning it could conceivably pave the way for implantable artificial lungs.

"Current technology involves complex systems that are limited to intensive care units, so [the] device has the potential to provide clinically relevant oxygenation levels using ambient air, opening the door to portable systems," says Jeffrey Borenstein, an expert in microsystems technology and biomedical devices at the Charles Stark Draper Laboratory in Cambridge, Mass., in a news release.

Joseph Potkay, an electrical engineering and computer science professor and the lead author of the paper describing the lung, estimates that based on current performance the unit could be powered by the heart instead of a mechanical pump.… Read more

Bill Gates may have given up running Microsoft, but he isn't taking his retirement sitting down. The software-entrepreneur-turned-philanthropist's charitable foundation has launched a new initiative aimed at improving the health of the billions of people who have no safe, sanitary way to get rid of their waste.

That's right, Bill Gates wants to reinvent the toilet.

"No innovation in the past 200 years has done more to save lives and improve health than the sanitation revolution triggered by invention of the toilet," Sylvia Mathews Burwell, president of the Bill & Melinda Gates Foundation's global development program, said in an address at a conference in Kigali, Rwanda, according to a written statement released by the foundation. "But it did not go far enough. It only reached one-third of the world. What we need are new approaches."

Forty percent of the world's population lacks access to flush toilets, and more than a billion people defecate in the open, according to the statement. That's not only revolting, but also tragic. UNICEF estimates that at least 1.2 million children under age 5 die of diarrhea each year, and contact with human feces is the main cause, Time reported.

Access to toilets could go a long way to preventing these deaths, the statement said.

In addition to preventing diarrhea, better access to toilets could boost school and work attendance of girls and women, who risk embarrassment and sexual assault when forced to relieve themselves in the open or use public restrooms.… Read more

What if, instead of waiting a few weeks for your dentist to produce a cast for dental implants or replacement crowns, your jaw was scanned and, during that same dentist's visit, you were able to pull a perfect polymer shape out of a 3D printer and be on your merry way?

Mechanical engineers in Iran report in the International Journal of Rapid Manufacturing that printing our own teeth may not be so far off into the future.

While the process could be prohibitively expensive for years to come, it turns out that 3D printing, coupled with the comparatively affordable cone-beam computed tomography (CBCT), may ultimately revolutionize prosthetic dentistry.

The tech, called rapid prototyping, uses a 3D image to control a laser that cures powdered or liquid polymer into highly complex shapes. In fact, Hossein Kheirollahi of the Imam Hossein University and Farid Abbaszadeh of the Islamic Azad University say this technology can produce just about any solid, porous, or complicated shape.

While the Iranian team has been able to demonstrate the use of rapid prototyping in developing dental objects quickly, we're likely at least a few years out from actual commercial development.

Below, watch tool replication via 3D printing:… Read more