Posts Tagged ‘technology’

Users of prosthetic limbs could soon be able to feel sensation on them, thanks to an “electronic skin” (e-skin) invented by researchers from the National University of Singapore (NUS).

The artificial nervous system can detect touch more than 1,000 times faster than the human equivalent and is the first e-skin in the world to do so, according to Assistant Professor Benjamin Tee from the Department of Materials Science and Engineering at the NUS Faculty of Engineering, who led the research.

Previously, damaged e-skins would lose their function due to their interlinked wiring system.

But if a corner of the Asynchronous Coded Electronic Skin (Aces) nervous system tears, the rest of the skin continues to have sensation, just like human skin, the researchers said.

This is because the Aces detects signals like the human nervous system and it comprises a network of sensors – each working independently – connected via a single electrical conductor.

The research team, which took 11/2 years to develop the sensor system, published its innovation in Science Robotics journal today.

“When you lose a limb and get fitted with a prosthetic that doesn’t feel, it’s almost like you’re always feeling numb and cannot control things very well,” said Prof Tee. “If we have a skin that can make prosthetics smarter, we can restore motor functions, productivity and general quality of life for these people.”

In human skin, receptors send information about touch to the brain, which enables humans to intuitively sense touch.

When the Aces is attached to a prosthetic hand, a neural implant must be inserted into the patient’s arm so that the brain can detect the sense of touch from the e-skin.

The team will work with prosthetics researchers abroad to conduct a clinical trial of the e-skin with a patient using an artificial hand.

The Aces has also been designed for robots. “Robots need to have a sense of touch to interact better with humans, but robots today still cannot feel objects very well,” said Prof Tee.

For instance, a search-and-rescue robot digging through rubble will need sensation to know that it has to push away rocks and concrete to rescue a trapped person.

E-skin such as the Aces can be commercialised for robots within a year or two, Prof Tee said, but it will take five to 10 years for prosthetics that sense touch to reach patients, to allow for clinical trials.


by David Hambling

Everyone’s heart is different. Like the iris or fingerprint, our unique cardiac signature can be used as a way to tell us apart. Crucially, it can be done from a distance.

It’s that last point that has intrigued US Special Forces. Other long-range biometric techniques include gait analysis, which identifies someone by the way he or she walks. This method was supposedly used to identify an infamous ISIS terrorist before a drone strike. But gaits, like faces, are not necessarily distinctive. An individual’s cardiac signature is unique, though, and unlike faces or gait, it remains constant and cannot be altered or disguised.

Long-range detection
A new device, developed for the Pentagon after US Special Forces requested it, can identify people without seeing their face: instead it detects their unique cardiac signature with an infrared laser. While it works at 200 meters (219 yards), longer distances could be possible with a better laser. “I don’t want to say you could do it from space,” says Steward Remaly, of the Pentagon’s Combatting Terrorism Technical Support Office, “but longer ranges should be possible.”

Contact infrared sensors are often used to automatically record a patient’s pulse. They work by detecting the changes in reflection of infrared light caused by blood flow. By contrast, the new device, called Jetson, uses a technique known as laser vibrometry to detect the surface movement caused by the heartbeat. This works though typical clothing like a shirt and a jacket (though not thicker clothing such as a winter coat).

The most common way of carrying out remote biometric identification is by face recognition. But this needs good, frontal view of the face, which can be hard to obtain, especially from a drone. Face recognition may also be confused by beards, sunglasses, or headscarves.

Cardiac signatures are already used for security identification. The Canadian company Nymi has developed a wrist-worn pulse sensor as an alternative to fingerprint identification. The technology has been trialed by the Halifax building society in the UK.

Jetson extends this approach by adapting an off-the shelf device that is usually used to check vibration from a distance in structures such as wind turbines. For Jetson, a special gimbal was added so that an invisible, quarter-size laser spot could be kept on a target. It takes about 30 seconds to get a good return, so at present the device is only effective where the subject is sitting or standing.

Better than face recognition
Remaly’s team then developed algorithms capable of extracting a cardiac signature from the laser signals. He claims that Jetson can achieve over 95% accuracy under good conditions, and this might be further improved. In practice, it’s likely that Jetson would be used alongside facial recognition or other identification methods.

Wenyao Xu of the State University of New York at Buffalo has also developed a remote cardiac sensor, although it works only up to 20 meters away and uses radar. He believes the cardiac approach is far more robust than facial recognition. “Compared with face, cardiac biometrics are more stable and can reach more than 98% accuracy,” he says.

One glaring limitation is the need for a database of cardiac signatures, but even without this the system has its uses. For example, an insurgent seen in a group planting an IED could later be positively identified from a cardiac signature, even if the person’s name and face are unknown. Biometric data is also routinely collected by US armed forces in Iraq and Afghanistan, so cardiac data could be added to that library.

In the longer run, this technology could find many more uses, its developers believe. For example, a doctor could scan for arrythmias and other conditions remotely, or hospitals could monitor the condition of patients without having to wire them up to machines.

Bringing the filtering abilities of a fuel cell into the blood vessels of living organisms, a new device could cut down on toxic effects of cancer treatment.

At the heart of this approach — recently tested in pigs — is a tiny, cylindrical “sponge” created by 3-D printing. Wedged inside a vein near a tumor being treated with chemotherapy, the sponge could absorb excess drug before it spreads through the body — thus lessening chemotherapy’s harmful side effects, including vomiting, immune suppression or even heart failure.

A human study could launch “in a couple of years, if all the stars are aligned,” says Steve Hetts, a neuroradiologist at the University of California, San Francisco who came up with the drug-capture concept. He worked with engineers at UC Berkeley and elsewhere to create and test prototypes.

A test of the most recent prototype showed that the absorber captured nearly two-thirds of a common chemotherapy drug infused into a nearby vein, without triggering blood clots or other obvious problems in the pig, Hetts and his colleagues report January 9 in ACS Central Science.

The study addresses a major need, says Eleni Liapi, a radiologist at Johns Hopkins University School of Medicine not involved with the new work. Existing methods for controlling chemotherapy delivery do not fully block drug escape, she notes. “A technological advancement to reduce unwanted circulating drug is always welcome.”

This image shows a cross-sectional view of a new 3-D printed cylindrical device that could cut down on toxic side effects from cancer treatment. Resin coatings (gold) bind to a chemo drug used to treat liver cancer, experiments show.

Chemo is often delivered intravenously in the hope that some treatment reaches the cancer site. In a more localized form of chemotherapy used to treat hard-to-remove tumors, the drug travels through catheter wires snaked into arteries going straight to the tumor. Although this technique, known as transarterial chemo embolization, or TACE, is given to tens of thousands of people each year, typically some of the injected drug bypasses the tumor site and slips into general circulation where it can wreak havoc elsewhere.

Hetts uses the transarterial method to treat babies with a rare eye tumor called retinoblastoma – and it was those experiences that birthed the “sponge” idea in the first place. After the chemotherapy ran its course through transarterial catheters, the infants’ eye tumors shrank. However, several weeks later, their blood cell counts tanked, suggesting to Hetts that some of the chemo drugs were escaping the eye and affecting other cells. Those observations eight years ago led Hetts to think that “if only I had a device I could put into the vein to bind up the excess drug, then maybe these little babies wouldn’t get the side effect” of immune suppression.

Heart surgeons use a similar “filter” to remove bits of cholesterol plaque from arteries of people with atherosclerosis, a disease characterized by the clogging and hardening of arteries. Hetts envisioned a similar device for chemotherapy treatment — “but not just a dumb, inert membrane to capture debris,” he says. “I wanted a ‘smart’ membrane that chemically binds to a drug.”

Instead of trying to develop a drug-trap device for a super rare tumor — retinoblastoma has just 300 new cases per year in the United States — Hetts’ team focused on a chemo drug for liver cancer, which is estimated to strike more than 40,000 Americans this year and kill three-quarters of them.

Anand Patel, a trainee in the Hetts’ lab with a bioengineering background, tested a batch of resins and found several that could bind to this drug, known as doxorubicin. To optimize the resins and get them onto the tips of guide wires, Patel sought help with “cold call” e-mails to local professors. Nitash Balsara — a UC Berkeley chemical engineer with expertise in polymer chemistry and membranes — “was actually crazy enough to return my e-mail with interest,” says Patel, who now works as an interventional radiologist in the Los Angeles area.

Balsara’s lab develops materials to regulate ion flow in batteries and fuel cells. As it turns out, these filtration processes are “very similar to those that we needed to capture excess chemotherapy drugs from the blood,” Patel says. The team worked with Carbon, Inc., a 3-D printing company in the San Francisco Bay area, to get the drug-binding material onto a 30-millimeter-long, cylinder-shaped “sponge” about as wide as a drinking straw. Hee Jeung Oh of UC Berkeley spent more than a year working out how to attach the drug-binding material to the 3-D printed cylinder with crisscrossing struts.

In experiments, the team injected the liver cancer drug through the pigs’ leg and pelvic veins — which are similar in width to human liver veins, Hetts says. Before infusing the chemotherapy drug, the researchers inserted the 3-D printed sponge a few centimeters from the infusion site — as well as catheters above and below the sponge for collecting blood samples to measure drug absorption over time. Within a half hour, the device absorbed, on average, 64 percent of the liver cancer drug.

The next round of studies will monitor the capture of doxorubicin by drug sponges inserted directly into the pigs’ liver veins.

by Rachel Metz

There are about 45 million people in the US alone with a mental illness, and those illnesses and their courses of treatment can vary tremendously. But there is something most of those people have in common: a smartphone.

A startup founded in Palo Alto, California, by a trio of doctors, including the former director of the US National Institute of Mental Health, is trying to prove that our obsession with the technology in our pockets can help treat some of today’s most intractable medical problems: depression, schizophrenia, bipolar disorder, post-traumatic stress disorder, and substance abuse.

Mindstrong Health is using a smartphone app to collect measures of people’s cognition and emotional health as indicated by how they use their phones. Once a patient installs Mindstrong’s app, it monitors things like the way the person types, taps, and scrolls while using other apps. This data is encrypted and analyzed remotely using machine learning, and the results are shared with the patient and the patient’s medical provider.

The seemingly mundane minutiae of how you interact with your phone offers surprisingly important clues to your mental health, according to Mindstrong’s research—revealing, for example, a relapse of depression. With details gleaned from the app, Mindstrong says, a patient’s doctor or other care manager gets an alert when something may be amiss and can then check in with the patient by sending a message through the app (patients, too, can use it to message their care provider).

For years now, countless companies have offered everything from app-based therapy to games that help with mood and anxiety to efforts to track smartphone activities or voice and speech for signs of depression. But Mindstrong is different, because it’s considering how users’ physical interactions with the phones—not what they do, but how they do it—can point to signs of mental illness. That may lead to far more accurate ways to track these problems over time. If Mindstrong’s method works, it could be the first that manages to turn the technology in your pocket into the key to helping patients with a wide range of chronic brain disorders—and may even lead to ways to diagnose them before they start.

Digital fingerprints
Before starting Mindstrong, Paul Dagum, its founder and CEO, paid for two Bay Area–based studies to figure out whether there might be a systemic measure of cognitive ability—or disability—hidden in how we use our phones. One hundred and fifty research subjects came into a clinic and underwent a standardized neurocognitive assessment that tested things like episodic memory (how you remember events) and executive function (mental skills that include the ability to control impulses, manage time, and focus on a task)—the kinds of high-order brain functions that are weakened in people with mental illnesses.

The assessment included neuropsychological tests that have been used for decades, like a so-called timed trail-­tracing test, where you have to connect scattered letters and numbers in the proper order—a way to measure how well people can shift between tasks. People who have a brain disorder that weakens their attention may have a harder time with this.

Subjects went home with an app that measured the ways they touched their phone’s display (swipes, taps, and keyboard typing), which Dagum hoped would be an unobtrusive way to log these same kinds of behavior on a smartphone. For the next year, it ran in the background, gathering data and sending it to a remote server. Then the subjects came back for another round of neurocognitive tests.

As it turns out, the behaviors the researchers measured can tell you a lot. “There were signals in there that were measuring, correlating—predicting, in fact, not just correlating with—the neurocognitive function measures that the neuropsychologist had taken,” Dagum says.

For instance, memory problems, which are common hallmarks of brain disorders, can be spotted by looking at things including how rapidly you type and what errors you make (such as how frequently you delete characters), as well as by how fast you scroll down a list of contacts. (Mindstrong can first determine your baseline by looking at how you use your handset and combining those characteristics with general measures.) Even when you’re just using the smartphone’s keyboard, Dagum says, you’re switching your attention from one task to another all the time—for example, when you’re inserting punctuation into a sentence.

He became convinced the connections presented a new way to investigate human cognition and behavior over time, in a way that simply isn’t possible with typical treatment like regularly visiting a therapist or getting a new medication, taking it for a month, and then checking back in with a doctor. Brain-disorder treatment has stalled in part because doctors simply don’t know that someone’s having trouble until it’s well advanced; Dagum believes Mindstrong can figure it out much sooner and keep an eye on it 24 hours a day.

In 2016, Dagum visited Verily, Alphabet’s life sciences company, where he pitched his work to a group including Tom Insel, a psychiatrist who had spent 13 years as director of the National Institute of Mental Health before he joined Verily in 2015.

Verily was trying to figure out how to use phones to learn about depression or other mental health conditions. But Insel says that at first, what Dagum presented—more a concept than a show of actual data—didn’t seem like a big deal. “The bells didn’t go off about what he had done,” he says.

Over several meetings, however, Insel realized that Dagum could do something he believed nobody in the field of mental health had yet been able to accomplish. He had figured out smartphone signals that correlated strongly with a person’s cognitive performance—the kind of thing usually possible only through those lengthy lab tests. What’s more, he was collecting these signals for days, weeks, and months on end, making it possible, in essence, to look at a person’s brain function continuously and objectively. “It’s like having a continuous glucose monitor in the world of diabetes,” Insel says.

Why should anyone believe that what Mindstrong is doing can actually work? Dagum says that thousands of people are using the app, and the company now has five years of clinical study data to confirm its science and technology. It is continuing to perform numerous studies, and this past March it began working with patients and doctors in clinics.

In its current form, the Mindstrong app that patients see is fairly sparse. There’s a graph that updates daily with five different signals collected from your smartphone swipes and taps. Four of these signals are measures of cognition that are tightly tied to mood disorders (such as the ability to make goal-based decisions), and the other measures emotions. There’s also an option to chat with a clinician.

For now, Insel says, the company is working mainly with seriously ill people who are at risk of relapse for problems like depression, schizophrenia, and substance abuse. “This is meant for the most severely disabled people, who are really needing some innovation,” he says. “There are people who are high utilizers of health care and they’re not getting the benefits, so we’ve got to figure out some way to get them something that works better.” Actually predicting that a patient is headed toward a downward spiral is a harder task, but Dagum believes that having more people using the app over time will help cement patterns in the data.

There are thorny issues to consider, of course. Privacy, for one: while Mindstrong says it protects users’ data, collecting such data at all could be a scary prospect for many of the people it aims to help. Companies may be interested in, say, including it as part of an employee wellness plan, but most of us wouldn’t want our employers anywhere near our mental health data, no matter how well protected it may be.

Spotting problems before they start
A study in the works at the University of Michigan is looking at whether Mindstrong may be beneficial for people who do not have a mental illness but do have a high risk for depression and suicide. Led by Srijan Sen, a professor of psychiatry and neuroscience, the study tracks the moods of first-year doctors across the country—a group that is known to experience intense stress, frequent sleep deprivation, and very high rates of depression.

Participants log their mood each day and wear a Fitbit activity tracker to log sleep, activity, and heart-rate data. About 1,500 of the 2,000 participants also let a Mindstrong keyboard app run on their smartphones to collect data about the ways they type and figure out how their cognition changes throughout the year.

Sen hypothesizes that people’s memory patterns and thinking speed change in subtle ways before they realize they’re depressed. But he says he doesn’t know how long that lag will be, or what cognitive patterns will be predictive of depression.

Insel also believes Mindstrong may lead to more precise diagnoses than today’s often broadly defined mental health disorders. Right now, for instance, two people with a diagnosis of major depressive disorder might share just one of numerous symptoms: they could both feel depressed, but one might feel like sleeping all the time, while the other is hardly sleeping at all. We don’t know how many different illnesses are in the category of depression, Insel says. But over time Mindstrong may be able to use patient data to find out. The company is exploring how learning more about these distinctions might make it possible to tailor drug prescriptions for more effective treatment.

Insel says it’s not yet known if there are specific digital markers of, say, auditory hallucinations that someone with schizophrenia might experience, and the company is still working on how to predict future problems like post-traumatic stress disorder. But he is confident that the phone will be the key to figuring it out discreetly. “We want to be able to do this in a way that just fits into somebody’s regular life,” he says.

Starkey Hearing Technologies recently unveiled their latest hearing aid, the Livio AI. The aid leverages artificially intelligent software to adapt to users’ listening environments. Starkey says the device does a lot more than just assist in hearing, and includes a range of additional technology, such as a physical activity tracker and integrated language translation.

Hearing loss has a disabling effect on 466 million people worldwide, including over 7 million children under 5 years old. Modern hearing aids already include some pretty sophisticated connectivity, including Bluetooth and internet functionality. The Livio device, however, goes quite a few steps further, and capitalizes on the current craze for fitness devices by including a host of health-minded integrations.

The Future is Hear
Launched August 27 at an event at Starkey’s Minnesota HQ, the Livio contains advances which the Starkey CTO Achin Bhowmik was keen to compare to those seen in the phone market over the last twenty years. The eponymous “artificial intelligence” aspect of the device includes the ability to detect the location and environment in which the user is wearing the aid and optimize the listening experience based on this information. This is, arguably, not the most eye-catching (ear-catching?) feature of the Livio – such capabilities have been advertised in other hearing aid technology.

Rather the Livio’s integration of inertial sensors is its main party trick – this enables it to count physical activity much like other fitness devices. It can count your steps and exercise, and cleverly integrates this with a “brain health” measurement to derive a mind and body health score. The brain health measurement is partly calculated from how much you wear the device, and while it’s arguable whether simply wearing a hearing aid represents training your brain, another component that increases its users’ score when they interact with different people in different environments sounds like a neat way to check on the social health of elderly users. Furthermore, the inertia sensor can detect whether a wearer has fallen, which Bhowmik was keen to point out is a major health hazard for older people.

The translation software is also a major draw, and the promise of sci-fi level language conversion, covering 27 languages, shows Starkey are aiming to bring the multi-billion-dollar hearing aid industry into the future.

As for whether the device can meet these lofty promises, you’ll simply have to keep an eye (and er, ear) out to see if the Livio performs as well as Starkey hope.

Vaitheki Maheswaran, Audiology Specialist for UK-based charity Action on Hearing Loss, said: “The innovation in technology is interesting, not only enabling users to hear better but to monitor their body and mental fitness with the use of an app. However, while this technology is not currently available in the UK, it is important to speak to an audiologist who can help you in choosing the most suitable type of hearing aid for your needs because one type of hearing aid is not suitable for everyone.”

A nearly 2,000-foot-long tube is towed offshore from San Francisco Bay on Saturday. It’s a giant garbage collector and the brainchild of 24-year-old Boyan Slat, who aims to remove 90 percent of ocean plastic by 2040.


We humans have deposited a huge amount of plastic in Earth’s waters. There are now five garbage-filled gyres in the world’s oceans — the largest and most notorious being the Great Pacific Garbage Patch, with its estimated 1.8 trillion pieces of plastic, spread across an area twice the size of Texas.

One of the people trying to figure out how to clean up the ocean is Boyan Slat, a 24-year-old Dutch social entrepreneur who has been working to invent a solution since he was 17. His idea — for a giant floating system that would corral the plastic so it can be scooped out — is on the verge of reality.

He founded a nonprofit called The Ocean Cleanup and picked up a major environmental award from the United Nations along the way. Tech investors including Peter Thiel and Marc Benioff got behind his go-big ethos; a reported $35 million total has been raised.

On Saturday, a vessel that usually tows oil rigs instead towed Slat’s giant garbage-catcher some 300 miles offshore from San Francisco Bay. For two weeks, engineers will monitor how the system handles the battering waves in the Pacific before towing it 1,100 more miles to the patch.

The system’s centerpiece is a nearly 2,000-foot-long plastic tube with a 10-foot skirt attached beneath, forming a U-shaped barrier designed to be propelled by wind and waves. Its aim is to collect plastic as it floats — and then every few months, a support vessel would come by to retrieve the plastic, like an oceanic garbage truck. The plastic would then be transported back to land for recycling.

If it works, The Ocean Cleanup plans to deploy a fleet of 60 such devices, which the group projects can remove half the plastic in the Great Pacific Garbage Patch in five years’ time.

But will it actually work? Slat doesn’t know.

His team has changed its concept over time, switching from a moored system to a drifting one, in order to act more like the plastic it’s trying to catch. They tested a prototype on the North Sea but say the Pacific will be the real challenge.

“We believe that every risk that we can eliminate in advance we have been able to eliminate,” he said in a video prior to Saturday’s launch. “But that doesn’t mean that all risks have been eliminated. Truly, the only way to prove that we can rid the oceans of plastic is to actually go out there and deploy the world’s first ocean-cleaning system.”

The Ocean Cleanup hopes to reduce the amount of plastics in the world’s oceans by at least 90 percent by 2040. But many experts on plastic pollution have expressed concerns about whether the project will be effective.

For one thing, most of the plastic that ends up in the ocean doesn’t end up in these garbage gyres.

“Based on the latest math, we think that about 8 million metric tons of plastic is flowing in to the ocean from land around the world,” says George Leonard, chief scientist at Ocean Conservancy. And he says that only around 3 percent to 5 percent of that total amount of plastic actually winds up in the gyres.

“So if you want to clean up the ocean,” Leonard says, “it may in fact be that the open ocean is not the place to look.”

Part of the issue is that not all plastic is buoyant. A lot of it sinks immediately — and thus won’t be captured by this floating boom, said Eben Schwartz, marine debris program manager for the California Coastal Commission.

“It would be wonderful if we can clean up the surface of the gyre, but since so much more of the trash in the ocean actually doesn’t end up on the surface of the gyre, it’s even more critical that we address where it’s coming from and try to stop it at its source,” Schwartz recently told NPR’s Here and Now.

Then there’s the question of whether the project might cause unintended environmental consequences. Specifically: Can you capture plastics without ensnaring marine life?

“We know from the fishing industry that if you put any kind of structure in the open ocean, it will attract a whole community of animals, both large and small, to that particular piece of structure,” Leonard says.

Fishermen sometimes create fish aggregating devices (FADs) that intentionally create little floating ecosystems to attract fish. “There’s a worry that this could become a very large FAD and attract a whole number of larger fish and marine mammals and seabirds that might be impacted by it,” he says.

Plus, The Ocean Cleanup’s system is made of high-density polyethylene, a kind of plastic. So, what if it becomes part of the problem it’s trying to solve?

“I sort of wonder what kinds of microplastics this thing is going to be generating on its own, assuming that it’s even functioning exactly as designed,” oceanographer Kara Lavender Law of the Sea Education Association told Wired. And if the boom gets busted in a big storm, well: “If it’s shedding nano-size particles and then gets smashed into 200-meter-long pieces, you’re really covering the whole size range there.”

And then there’s the worry that a big, expensive project like The Ocean Cleanup diverts money and attention away from other efforts that are known to be effective — such as waste management policies to keep the garbage from getting into the ocean in the first place.

A 2015 study found that China, Indonesia, the Philippines, Vietnam, Sri Lanka and Thailand were the leading sources of plastic waste in the world’s oceans.

“The science points to about a half a dozen countries in Southeast Asia which are rapidly developing economies that are heavily reliant on plastic, and lack the kind of waste management infrastructure that I think many of us in the U.S. take for granted,” Leonard says.

He points to one low-tech way to help fight plastics in the ocean: Pick up trash in your own local waterways. His organization’s annual International Coastal Cleanup takes place Sept. 15, when he says nearly a million people are expected to work to remove some 20 million pounds of trash from beaches and waterways around the world.

Leonard says the Ocean Conservancy is skeptical that the giant trash collector will work, “but we’re being enthusiastic, and we hope it does.”

“The ocean really needs all the help it can get.”


Lightning Packs, LLC has created what could be a ground-breaking new pack-frame design that appears to float while being carried, reducing fatigue. It may even generate power, the makers say.

“Our ergonomic backpacks use an innovative pulley system to reduce impact forces on the user by 80 to 90 [percent], which reduces exertion and injury,” according to the Lightning Packs website.

Lightning Packs founder and pack inventor Lawrence Rome is a muscle physiology expert, according to the company’s website. He also teached at the University of Pennsylvania.

“We first designed, built under contract, and delivered a series of ergonomic and electricity-generating backpacks for personnel of the United States Army and Marine Corps. The ergonomic benefits of our design have been field-tested and approved by soldiers themselves,” the website states.

The Army’s Communications-Electronics Research Development and Engineering Center put out a brief video in 2015 to showcase the new pack frame technology.

Yakira Howarth, of CERDEC’S Command, Power and Integration Directorate, said in the video that the frame “generates electricity through rotary motion that we can capture and use to trickle-charge any batteries or electronics that they have on them.”

“Our aim is for a net-zero soldier which means that whatever he is powering that is on him will be powered by what he is carrying on him at the same time,” she continued. “We are supporting tactical power for the small unit so we are continually gathering data and feedback from soldiers so that we can continue to improve the wearability of this working prototype.”

It’s unclear if the Army is still looking at the technology.

Lightning Packs now plans to market its new ergonomic backpack, the “Hoverglide,” on the commercial market, using to raise funding.

Using Suspended Load Technology, or SLT, the frame slides up and down as the weared walks to reduce “the accelerative forces that cause injuries and reduce mobility,” according to the website.

“The pack reduces the metabolic energy requirement by 40-80 watts, allowing a wearer to carry 8-12 extra pounds ‘for free,'” the website states.

The Hoverglide will be offered in several models for backpacking, commuting and light hiking. There will also be a tactical model which is about the size of a standard daypack or assault pack, according to the review website Hot-Newtech.

“Our company is ready to produce a pack that enables quicker, easier travel while reducing back pain and injury, [and] with your help, we can make that happen,” the Lighting Packs website states.