Health tech

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

In 12 cities across England this past spring, researchers took almost 400 samples from cell phones and hands on the hunt for bacteria.

The researchers--from the London School of Hygiene and Tropical Medicine and Queen Mary, University of London--found that 16 percent of both the phones and hands contained E. coli, a form of bacteria that inhabits our intestines and is typically spread through fecal matter.

At 400, the sample size is by no means large, but if those percentages are accurate, there is simply no getting around the conclusion: traces of our own poop and the resulting bacteria are hanging out on 1 in 6 of our phones and hands.… Read more

In my neighborhood in Portland, Ore., the hipsters all like to ride minimalist fixed-gear bikes (aka fixies). Without a freewheel, a fixie generally requires pedaling forward to move forward and pedaling backward to brake. Brakes with wires are just so last year. Shoot, even handlebars are starting to look a tad frilly.

Good thing, then, that a team out of Saarland University in Germany has devised a wireless braking system that does away with those protruding brake levers and messy wires altogether. What's more, the mathematical calculations the team applied to determine safety--the same used in control systems for aircraft or chemical factories--deem the brake 99.999999999997 percent reliable.… Read more

Eight months and several hurdles after receiving 510(k) clearance, mobile-health company Mobisante says its smartphone ultrasound device is officially on the market.

The U.S. Food and Drug Administration clearance alone took so long that the MobiUS system--intended to be used in fetal, abdominal, cardiac, pelvic, and peripheral vessel imaging--only works with the 2-year-old Windows Mobile 6.5-based Toshiba TG01 smartphone and requires a USB 2.0 port for the probe. In other words, it won't be compatible with iPhones and Android-based phones, which don't support USB 2.0.… Read more

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

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

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

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

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