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Health tech

Caltech's ePetri dish uses Android, not microscope

What do you get when you combine an Android smartphone, cell phone image sensor, Lego building blocks, and a handful of Caltech engineers and biologists? The ePetri, which isn't Petri Dish 2.0, but a full reworking of a technology that dates back to the late 1800s.

Traditionally, the Petri dish (named after German bacteriologist Julius Richard Petri) has been used in the medical field to identify bacterial infections by studying samples via microscope as the cultured cells grow in an incubator.

The Caltech researchers have a few choice words for such an approach in 2011, including "expensive," "labor-intensive," and "suboptimal." So they set out to improve not just the dish, but the entire process.… Read more

GlassesOff: iPhone app aims to boost your vision

It's no secret that as we age, our vision deteriorates. Over time, our eyes tend to lose their ability to focus on nearby objects. I know what that's like. I'm farsighted.

I've always been told my poor eyesight is unavoidable and unfixable. So I felt hopeful at hearing that an iPhone app called GlassesOff promises to "help you achieve over 80 percent improvement in vision acuity" by training your brain to more efficiently process the blurred images that result from near-vision deterioration.… Read more

Man turns to surgery to become Superman

Superhero fans, we give you Herbert Chavez of the Philippines.

Chavez obviously read a comic book or two during his 35 years of life on Earth because he turned to extensive surgery to transform himself into everyone's famous Son of Krypton.

According to a ABS-CBN Filipino news report, Chavez has been undergoing Superman-ish procedures for 16 years now, including chin augmentation, rhinoplasty, silicone injections to his lips, and (my favorite) thigh implants. … Read more

Behold the iPhone as hi-def medical imaging device

A team of physicists and engineers out of the University of California at Davis are taking the iPhone 4 to new heights--and they're not talking about No. 5.

Using materials that cost about as much as a typical app, they tricked out an iPhone with a few new tools, including a microscope, which--with the phone's camera--could identify features as small as 1.5 microns. That's small enough to identify different blood cell types.

"Field workers could put a blood sample on a slide, take a picture, and send it to specialists to analyze," says Sebastian Wachsmann-Hogiu, a physicist at the Center for Biophotonics, Science and Technology and lead author of the research to be presented in mid-October at the Optical Society's Annual Meeting in San Jose, Calif.

In rural clinics in developing nations, which tend to have limited if any lab equipment, these decked-out iPhones could help nurses and doctors diagnose a range of blood diseases by not only imaging blood cells but sending data in real time to colleagues anywhere around the world for further analysis.… Read more

Does silly new fitness device Free Flexor work?

There's a new fitness gadget making the rounds. Even more silly (not to mention sexual) than the good ol' Thigh Master and newcomer Shake Weight, the Free Flexor makes us giggle when it's in use.

Just watch the below commercial we found on YouTube, for starters. Within seconds, you will probably blush, laugh, and copy and paste the URL. We'd tell you why it makes us laugh, but we're too ashamed to get into it (no pun intended). Guaranteed, you will share it with your friends. Some of them might even buy it for novelty alone.

I'm not judging--I have a Shake Weight at home. I don't know if it really works, but it sure is a great conversation piece at house parties.

Now about the Free Flexor... We have yet to try it, so we couldn't tell you if it's effective or not. To get the lowdown, we turned to fitness experts for their opinions.… Read more

New cloth self-cleans by killing bacteria

Tossing clothes into the wash when dirty is so last year, thanks to a discovery by chemists out of the University of California at Davis. Near-ordinary cotton may simply need be exposed to light to get busy killing bacteria and breaking down toxic chemicals such as pesticide residues.

Ning Liu, a doctoral student at UC Davis, worked with textile chemists Gang Sun and Jing Zhu to develop a method that incorporates a compound (2-AQC) into cotton fabrics. When exposed to light, it produces reactive oxygen species such as hydrogen peroxide that kill bacteria and break down toxins.

While Liu says 2-AQC is more expensive than other compounds, it is difficult to remove from cotton due to strong bonding, and cheaper equivalents should work, too.

"The new fabric has potential applications in biological and chemical protective clothing for health care, food processing, and farm workers, as well as military personnel," she says.

The team reported on its findings in the Journal of Materials Chemistry last month, shortly before another study out of the University of Iowa chronicled the vast presence of even drug-resistant disease-causing bacteria on hospital curtains.… Read more

New Fitbit knows how high you are

The Fitbit electronic pedometer is for people taking baby steps into a fitness.

Since launching the company at a 2008 TechCrunch event, founder James Park says, he has discovered that while Nike and Garmin sell their fitness monitoring products to health and activity nuts, the Fitbit has ended up winning market share with the broad middle of the population, so to speak. "We don't have a very athletic user base," Park says.

The new $99 Fitbit Ultra, launching today, is much the same as the previous product, with one key hardware difference: it has a pressure altimeter, so it can determine when you're climbing stairs (or, in my town, hills).

This is a key metric to track for those trying to improve fitness by walking around, and Park hopes that the Fitbit Ultra will encourage people to climb the equivalent of 10 flights of stairs a day as they're racking up their standard 10,000 steps. The device also measures sleep quality.… Read more

Nanowires give you heart of gold, literally

Researchers at MIT and Harvard University have developed tiny gold-studded scaffolds that can be used to build tissue in which cells have a synchronous beat, a possible repair tool for treating heart-attack victims.

In a study reported in Nature Nanotechnology, Daniel Kohane, a professor in the Harvard-MIT Division of Health Sciences and Technology (HST), and colleagues improved the electrical conductivity of scaffolds used to grow cardiac cells.

They devised a new scaffold material but based it on alginate, an organic substance that's already used in tissue scaffolds. They combined the alginate with a solution containing gold nanowires, which are good conductors.

After cardiac cells were seeded on the composite scaffold, the researchers compared the conductivity of the gold-enhanced cells with cells grown on regular alginate. They checked each for the presence of calcium, which helps electrical signals travel in the tissue. … Read more

Zeo sleep tracker goes mobile

Health and wellness firm Zeo's labeling of sleep problems in America as an "epidemic" might not be hyperbole. Some 64 million of us grapple with sleep issues every night, and another 49 million struggle at least a few nights a week, according to the firm's analysis of U.S. Census data.

Zeo, which first caught our eye in 2005 under the name Axon Labs with an alarm clock called SleepSmart, now offers a highly evolved mobile sleep system that employs a wireless headband to track all known sleep phases, including Light, Deep, and REM sleep.

The Zeo Sleep Manager then sends the resulting sleep data directly to the user's mobile device (iPhone, iPod Touch, iPad, and soon Android-based smartphones), which then syncs to the user's online Zeo account, where a ZQ sleep score that summarizes sleep quality is calculated. (It used to be transmitted to an SD card and then had to be manually uploaded.)… Read more

Panasonic's Hospi-Rimo robot tends to patients

Robots are playing increasingly important roles in surgery, but what about post-op care? Panasonic has developed a robot with telepresence functions can help bedridden patients communicate with loved ones, and upgraded its robot bed and hair-washer.

Hospi-Rimo is a communications robot aimed at helping patients chat with their doctors when they're not around--or talk with distant friends and family.

Based on the electronics giant's Hospi drug-delivery bot, Hospi-Rimo can be remote-controlled or move around autonomously. It can automatically move to specified locations, avoiding obstacles en route.

The machine has a large screen (naturally with a happy face) and sensors to learn about its environment. Panasonic says it could be used in hospitals (like its precursor Hospi) or residences where elderly people live alone.

The company's hair-washing robot, introduced last year, has 24 fingers and provides bubble and hand washes. Improvements include refined head-scanning to provide custom washing, conditioning, and drying functions, and user-set spot massages.

Announced in 2009 and then commercialized, the RoboticBed is basically an electric wheelchair that morphs into a fully adjustable bed. It now has a power-assist tilt function to prevent slippage during long periods of sitting, as well as a simplified control interface.

The latest prototypes of the three robots will be shown off at the International Home Care & Rehabilitation Exhibition (HCR) 2011 next month in Tokyo. … Read more