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Biotech

Researchers unveil ultra-thin electronics that dissolve in body

The same researchers who last year developed "electronic tattoos" that bend and stretch on skin are now unveiling similar ultra-thin electronics, only these dissolve when their job is done.

Made of silicon, magnesium, and magnesium oxide and surrounded by a protective layer of silk, these "transient" electronics aren't built to last but rather to melt away and, in the process, reduce the need to pass or surgically remove tiny medical implants, researchers from Tufts and the University of Illinois write in the current issue of Science.

The researchers -- who have begun using their devices … Read more

See how healthy your lungs are -- just blow into your phone

Today, patients with chronic lung conditions such as cystic fibrosis or asthma can't easily monitor how their airways are doing. Instead, they have to go to the doctor's office and blow into a special device called a spirometer as hard and fast as they can.

So for the past two-plus years, grad students at the University of Washington in Seattle have been working to develop an app that can measure lung function just as accurately but without the need for additional hardware. (Existing apps either require hardware or are for entertainment purposes only.)

In other words, they've been trying to turn a smartphone into a spirometer.… Read more

Your sleep patterns, now in soundtrack form

I had that dream again the other night. The one where I (oops!) forgot to go to class all semester and it's time for the final, and OMG, but wait, maybe somehow I can fake my way through it?

Apparently, this dream plans to dog me no matter how far away from college I get. I've had it so many times it deserves its own soundtrack. And now, it turns out, it can get one.

Computer scientists from Finland's University of Helsinki have developed software that makes music out of sleep patterns. … Read more

The pacemaker is about to get a whole lot smaller

A team of engineers out of Stanford is introducing a truly tiny wireless cardiac device to demonstrate that, thanks to a little ingenuity and impressive math, all medical implants may soon be powered wirelessly.

Which means that devices such as pacemakers, which owe the majority of their bulk to the battery, are about to get a whole lot smaller.

Head researcher Ada Poon, who earlier this year showed off a proof-of-concept, wirelessly powered device small enough to propel itself through the bloodstream, says the main achievement with the cardiac device is that it can be implanted on the surface of … Read more

Outperform steroids with this body-cooling glove

It looks like a hockey goalie's blocker glove, and indeed this mitt might help stop more pucks when fatigue takes its toll.

Stanford University researchers are working to improve a device that can rapidly cool the body after an intense workout, allowing faster recovery and performance enhancement that's "substantially better" than steroids.

The $3,000 CoreControl Glove has been on the market for some time. It uses a low-tech blood-cooling method to allow athletes to perform better and longer. Basically, cool water flows into a vacuum around the hand, cooling blood in the palm. … Read more

Donate organs? No, grow them from scratch

BERLIN -- Medical science, boosted by manufacturing and information technology, is on the cusp of being able to grow human tissue.

So believes Nina Tandon, a senior fellow at Columbia University's Lab for Stem Cells and Tissue Engineering, who for her Ph.D. thesis grew cardiac cells that beat like tiny hearts.

A third age of medicine is beginning, she said in a speech here at the TEDx Berlin conference held in conjunction with IFA consumer-electronics show. The first age, most of human history, had only a primitive understanding of the body. The second age ran from the first … Read more

First wireless back pain devices approved in U.S.

If you're in need of a little back pain relief and have $149 to spare, keep an eye out for the newly approved WiTouch by medical device developer Hollywog.

Putting a fresh spin on old tech, the device employs electrical stimulation (called transcutaneous electrical nerve stimulation -- aka TENS) to ease back pain. But unlike its predecessors, this one is wirelessly remote controlled.… Read more

Electronic nose detects harmful airborne substances

After spending eight years developing a tiny sensor that can sniff out a variety of airborne substances, a chemical engineering professor is working with a company to bring the resulting prototype -- a so-called "electronic nose" -- to market.

The tech could be used in a wide range of settings, including industrial sites to detect gas leaks, agriculture to detect pesticide levels, and the military to detect chemical warfare agents.

Developed by Nano Engineered Applications, the prototype includes a computer chip, USB ports, and temperature and humidity sensors and is just the first in a series of similar … Read more

My cyborg sister: When life-saving gadgets break down

You'd never know it from looking at her, but my sister Rachel has pressure settings.

They're regulated by a surgically implanted valve in her head, part of a system called a ventriculoperitoneal shunt that makes her one of a growing number of humans medically augmented with implantable and attachable devices.

The shunt drains excess cerebrospinal fluid that would otherwise over-accumulate inside her skull due to a congenital condition called hydrocephalus, or "water on the brain," that can damage brain tissue if left untreated. The apparatus directs the fluid from the magnetized pressure valve in her head down through a tube that leads to her abdomen, where it's re-absorbed by her body.

Yes, my sister has a magnet in her head, and to answer a few questions commonly asked since her latest surgery a few months ago, yes, she'll be able to go through airport security scanners and metal detectors and stand near microwaves. But she'll need to be cautious of some kinds of audio headphones, and after she gets magnetic resonance imaging scans, a doctor will have to hold a special handheld device to her head to recalibrate her pressure settings.

Think of hydrocephalus as a plumbing problem. She needs tubes and valves to do what most of our bodies do naturally. … Read more

Brain scan might determine your age within a year

If you're prone to lying about your age, steer clear of structural magnetic resonance imaging. When used to scan your brain, no matter how good (or bad) you may look, a new imaging technique that uses MRI won't lie. In fact, it probably knows your age to the exact year.

"We have uncovered a 'developmental clock' of sorts within the brain -- a biological signature of maturation that captures age differences quite well, regardless of other kinds of differences that exist across individuals," Timothy Brown of the University of California, San Diego School of Medicine says in a news release.… Read more