Biotech

MIT figures out how to power tiny devices with... the ear

Devices that monitor inner ear activity could eventually be powered by the ear itself, according to research detailed in the current issue of the journal Nature Biotechnology by scientists from MIT, Massachusetts Eye and Ear Infirmary (MEEI), and the Harvard-MIT Division of Health Sciences and Technology (HST).

They say that for decades we have known the inner ear houses its own natural battery, but this is the first demonstration of its ability to power something external without compromising hearing.… Read more

Sensor promises disease detection with naked eye

British scientists have come up with a super-sensitive prototype sensor that lets doctors detect early stage diseases with the naked eye, an innovation that could prove valuable in countries that lack the resources for expensive diagnostic equipment.

The sensor, created at Imperial College London, relies on nanotechnology to analyze serum derived from blood samples.

A positive reaction to p24, a protein that indicates early HIV infection, or PSA, a protein that at certain levels can indicate prostate cancer, generates irregular clumps of nanoparticles that emit a blue color in a solution kept in a disposable container.

A negative reaction, however, … Read more

Detecting schizophrenia: The eyes have it

More than a century ago, doctors first realized that people with psychotic illnesses also suffer from impaired eye movements. Now researchers out of the University of Aberdeen in the U.K. have taken that observation and truly put it to the test with high resolution cameras and video software.

The result: a computer model based on a series of simple eye-tracking trials that has distinguished schizophrenics from healthy control subjects with 98.3 percent accuracy.

"It has been known for over 100 years that individuals with psychotic illnesses have a variety of eye movement abnormalities, but until our study, … Read more

DJ meets gym coach with app that keys songs to heart rate

Your smartphone could soon become a combination personal trainer and DJ.

Thanks to headphones that can measure your heart rate and acceleration, and a smartphone app that can identify which songs on your phone will help you reach your target heart rate, you won't have to guess which playlist best suits your next jog.… Read more

NASA exoskeleton suit is half way to Iron Man

The X1 Robotic Exoskeleton looks like a cross between the legs of a Stormtrooper and a Transformer. The suit is a spinoff from NASA's Robonaut 2 humanoid robot project.

The X1 is focused on either helping or hindering a person's legs, depending on its job description. When it's set to inhibit, the X1 resists movement and could be used to help astronauts exercise in space. When it's set to help, it could be used to assist paraplegics and others with lower body injuries with walking.

Four motorized joints and six passive joints give the 57-pound suit a good range of motion. It also gives it some nice Iron Man flavor, minus the propulsion feet.… Read more

How a smart bra could one day outdo the mammogram

Those breast exams women are supposed to regularly give themselves in the shower are no joke. With one in eight women facing breast cancer diagnosis at some point, early detection -- most often in the form of simple self exams -- can be a literal lifesaver.

So First Warning Systems, a company founded in Reno, Nev., in 2008, is designing and testing a smart bra that is essentially a continuous exam, and that thus far appears to be more accurate that the somewhat controversial mammography.

The Breast Tissue Screening Bra incorporates a sensor that measures tiny temperature changes that occur as blood vessels grow and feed tumors, which the company says grow for an average of 12 years (to 4 centimeters in diameter) before being surgically removed.

That sensor, meanwhile, communicates with pattern recognition software to help spot possible tumors long before a hand or mammogram likely would.… Read more

Everyday office paper tests for pregnancy, medical conditions

Researchers are developing a special process meant to replace the custom "paper" found in home pregnancy and other tests with plain old office paper -- a way of creating ultracheap methods of medical testing that could quickly diagnose pregnancy, malaria, diabetes, and more.

Ultimately, the idea is to replace the current standard, which relies on a membrane called nitrocellulose that sticks to molecules of interest, with cheap and ubiquitous paper that can stick to a whole fleet of chemicals, including DNA, antibodies, and sugars. And a University of Washington researcher wants to make the already cheap tests even … Read more

Engineers hope to upload bees' brains into robots

Sometimes real science sounds more like science fiction. Just the phrase "bionic bees" sounds like something out of an old paperback.

But that's the goal of a new project from two U.K. universities, the University of Sheffield and the University of Sussex. Engineers from the schools are planning to scan the brains of bees and upload the data into flying robots with the hope that the machines will fly and act like the real thing.

The goal of the project is to create the first robots able to act on instinct. Researchers hope to implant a honey bee's sense of smell and sight into the flying machines, allowing the robots to act as autonomously as an insect rather than relying on preprogrammed instructions.… Read more

Cows' lady parts text farmers when it's time for a booty call

Old McDonald had a farm. E-I-E-I-O. And on his farm he had a cow with a wireless intravaginal temperature sensor. E-I-E-I-O.

Swiss farmers are helping to test a new system that sends them alerts when their dairy cows are in heat. Stresses and supplements have led to cows showing fewer visual signs of being in heat. That's where technology is stepping in.

The system from Swiss company Anemon consists of a wireless sensor (installed where the sun don't shine) and a transmitter box that attaches to the cow's collar. An accelerometer in the transmitter collects activity data.

When the cow reaches an optimal temperature (also know as "feeling frisky"), the transmitter text messages the farmer to arrange for a bull rendezvous or artificial insemination. … Read more