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Scientists control a worm's brain cells using sound waves
Forget using clunky headsets and implants to control brain cells... one day, you might only need to use sound waves and some chemicals. Salk Institute scientists have found a way to control the brain cells of a tiny nematode worm through ultrasound. All they need to do to trigger activity is add a membrane ion channel to a neuron cell and blast it with ultrasonic waves -- in this experiment, the researchers changed the worm's direction through sound bursts. The approach is not only relatively unintrusive, but can reach deep into the body. You could trigger neural activity without ever hooking up an electrode, even for much larger animals.
Ultrasound can help wounds heal faster
It might sound a bit like quack medicine, but researchers from the University of Sheffield have proven that sound waves can help accelerate the skin's healing process. In particular, the team has discovered that the vibration low-intensity ultrasound transmits through the skin can activate pathways that fibroblast cells can use to migrate to the wounded area. Those cells are play a crucial role when it comes to the body's ability to repair damaged tissue. That's similar to how a cat's purr -- its frequencies, that is -- can stimulate the regeneration of bones.
Ultrasound technology captures life-like heart images
Traditional ultrasound allows doctors to see patients' hearts, but those photos are nowhere as detailed as they would like. Now, GE Healthcare has developed advanced software called "cSound" for its new cardiovascular ultrasound machines that can render realistic 4D -- that's 3D plus time -- heart images. GE claims cSound is so powerful, it can crunch a full DVD's worth of data in just a second. If it comes across any data it can't process immediately, it stores that info and uses algorithms to analyze it to generate images as close to the real thing as possible. The software also has built-in color maps that assigns specific hues to different tissues.
Laser-activated nanoparticles are coming to clear your acne
Researchers at UC Santa Barbara have developed a high-tech solution to the bane of adolescence: acne. Acne occurs when the skin's pores become clogged. Conventional remedies generally involve stripping the skin of sebum -- the waxy substance naturally produced by pores that makes your skin waterproof -- with topical washes or regulating its production with medication. However, researchers have published a novel solution in the Journal of Controlled Release, called selective photothermolysis, that relies on neither drugs nor harsh chemicals.
Scientists achieve X-ray vision with safe, visible light
If you think X-rays and other forms of radiation have a monopoly on penetrating opaque objects, visible light begs to differ. It actually can pass through things like paint and human tissue, which has powerful implications for medical research and other fields. Regular lightwaves could one day replace X-rays or even allow scientists to remove tumors with lasers instead of risky surgery. The problem is, such light is either absorbed or scattered once it passes through non-transparent items -- making it useless for imaging. Or is it? According to Nature, scientists are honing methods to reassemble scattered light that passes through opaque objects to create a usable image on the other side, Superman-style.
New tech uses ultrasound to create haptics you can 'see' and touch
We've seen haptic feedback in mid-air before, but not quite like this. The folks from Bristol University are using focused ultrasound in a way that creates a 3D shape out of air that you can see and feel. We know what you're probably thinking: How do you see something made of air? By directing the apparatus generating it at oil. As you do. According to the school, the tech could see use in letting surgeons feel a tumor while exploring a CT scan. Or, on the consumer side of things, to create virtual knobs you could turn to adjust your car's infotainment system without taking your eyes off the road. The tech can also apparently be added to 3D displays to make something that's both visible and touchable. If you're curious about what it looks like in action, we've embedded a video just below.
Researchers create a virtual screen with touchable objects
A team from the University of Tokyo is putting their own spin on a touchscreen. By combining an infrared sensor with ultrasound technology, the group of researches have managed to design a virtual display that's as thin as air and can let you feel every object you're touching. Dubbed HaptoMime, the project uses a reflective surface to give you that physically tangible feeling, while a change in ultrasonic pressure make it possible to create a number of different sensations -- say you're playing a digital keyboard (like the one pictured above), the feedback from it isn't the same you get with other type of applications. Check out the HaptoMime holographic screen in action after the break.
At last, phones will get ultrasound gesture control in first half of 2015
We've been following Elliptic Labs' development on ultrasound gesture control for quite a while, but no time frame was ever given until now. Ahead of CEATEC in Tokyo, the company finally announced that its input technology -- developed in partnership with Murata -- will be arriving on phones in the first half of 2015. But that's not the only good news: On top of the usual swiping gestures for images, games and navigation (we saw some of this last year), there's now a new capability called "multi layer interaction," which uses your hand's proximity to toggle different actions or layers. It's potentially useful for glancing at different types of messages on the lock screen, as demoed in the video after the break.
These drones learn about their world (and each other) as they fly
Flying robots can already spot some objects by themselves and occasionally improvise, but they'd ideally never need help -- they should find their way around even if they're in unfamiliar territory. The University of Sheffield may be close to fulfilling that dream. Its experimental quadcopters combine reference points in camera footage with barometric and ultrasonic sensors to not just map their environment, but understand it; they can detect interesting objects and investigate all on their own. This could be particularly handy for rescue crews and others in hazardous situations, since they could identify survivors or operate machinery while keeping human intervention to an absolute minimum.
Daily Roundup: new Amazon and Valve controllers, Samsung's ultrasonic phone case and more!
You might say the day is never really done in consumer technology news. Your workday, however, hopefully draws to a close at some point. This is the Daily Roundup on Engadget, a quick peek back at the top headlines for the past 24 hours -- all handpicked by the editors here at the site. Click on through the break, and enjoy.
Watch an ultrasonic array move objects in 3D space (video)
Ultrasonic levitation has been possible for awhile, but it's not very practical when objects must typically hover along a single axis. University of Tokyo researchers Yoichi Ochiai, Takayuki Hoshi and Jun Rekimoto have cleared this hurdle with an ultrasonic array that can push items around in 3D space. The machine creates a focal point from a three-dimensional standing wave; users just have to alter the wave's properties to move whatever is caught inside that point. The technique can manipulate a wide range of materials, and it's safe to disrupt with your hands. While the array will need to scale up before it lifts objects much larger than matchsticks or screws, it already shows that we don't need exotic technologies like tractor beams to float things through the air.
Atlus births mysterious ultrasound teaser site
In lieu of directly telling people what it's working on, Atlus has decided to launch an odd teaser site for its next project, one that features an ultrasound image and little else. The site was discovered yesterday, when Atlus issued a press release centering on its upcoming fighter AquaPazza. The press release seemed a typical info blast focused on that game's costumes, but an unexpected link was found below the usual press release text. That link leads to this website, which as you can see is some manner of Atlus-branded ultrasound. What all this means remains a mystery. Siliconera posits the idea that the text seen on the left side of the image contains references to a number of Atlus-developed and -published games, though that site admits its ideas are pure conjecture. Realistically, we won't know what this site is advertising until Atlus opts to fill in the blanks.
Elliptic Labs releases ultrasound gesturing SDK for Android, will soon integrate into smartphones
Elliptic Labs has already spruced up a number of tablets by adding the ability to gesture instead of make contact with a touchpanel, and starting this week, it'll bring a similar source of wizardry to Android. The 20-member team is demoing a prototype here at CEATEC in Japan, showcasing the benefits of its ultrasound gesturing technology over the conventional camera-based magic that already ships in smartphones far and wide. In a nutshell, you need one or two inexpensive (under $1 a pop) chips from Murata baked into the phone; from there, Elliptic Labs' software handles the rest. It allows users to gesture in various directions with multiple hands without having to keep their hands in front of the camera... or atop the phone at all, actually. (To be clear, that box around the phone is only there for the demo; consumer-friendly versions will have the hardware bolted right onto the PCB within.) The goal here is to make it easy for consumers to flip through slideshows and craft a new high score in Fruit Ninja without having to grease up their display. Company representatives told us that existing prototypes were already operating at sub-100ms latency, and for a bit of perspective, most touchscreens can only claim ~120ms response times. It's hoping to get its tech integrated into future phones from the major Android players (you can bet that Samsung, LG, HTC and the whole lot have at least heard the pitch), and while it won't ever be added to existing phones, devs with games that could benefit from a newfangled kind of gesturing can look for an Android SDK to land in the very near future. Mat Smith contributed to this report.
Elliptic Labs develops touchless gesture control for Windows 8, assuages our fear of fingerprints (video)
The rise of touchscreen Windows 8 PCs isn't a happy occasion for anyone who's been carefully keeping PC screens clean: years of slapping wayward hands have been undermined by an interface that practically begs us to smudge up the display. While we suspect it's really aiming for ease of use, Elliptic Labs may have heard that subliminal cry for cleanliness while producing its new Windows 8 Gesture Suite, a touchless control system built for a very touch-focused platform. The company's newest take on ultrasound control can pick up 3D hand motions near the display and invoke all of Windows 8's edge swipes and scrolling without the extra effort (or grease) of putting skin to screen. The method doesn't need a one-to-one map of the screen and can work even in pitch darkness, which leaves adoption mostly dependent on hardware support rather than any wary users -- despite immediate availability for the SDK, PCs need extra microphones and transducers to drop the touch layer. If computers with the Gesture Suite arrive in the hoped-for 12 to 14 months, though, we can get back to obsessing over a fingerprint-free LCD while saving some physical strain in the process.
MIT engineers use ultrasound for improved topical drug administration (video)
Ultrasound is likely most often associated with sonograms, but some MIT engineers are poised to change that. By using two separate beams of inaudible sound waves (one at low-frequency, the other high) the team were able to increase the permeability of skin, in a bid to improve the efficiency of transdermal drug delivery. The technique works thanks to the waves exciting bubbles in a fluid (such as water), forcing them to swell and move chaotically. Once the bubbles reach a certain size they implode, sucking the surrounding fluid into the void. This process creates micro-jets of liquid, which cause miniscule tears in the skin, allowing it to (painlessly) absorb chemicals more effectively. In practice, a pre-treated area of skin is then covered with a patch containing the correct dose of drugs -- but don't worry, the skin is said to grow back just a few hours later. Up until now, research into ultrasonic administration of drugs has concentrated on low-frequency waves, because the higher end of the spectrum doesn't have enough energy to pop the bubbles. Higher frequencies do, however, help create more of them and also limits their lateral movement. By using both high- and low-frequencies, the MIT engineers found this produced better over all results, by not only increasing the skin's uptake of the medicine, but also increasing the number of drugs that can be delivered this way. With pretty much anything that is usually delivered in capsule form being on the cards, this could make the administration of many popular drugs much more convenient and / or effective. Also excellent news for those who really don't like needles.
Robopsy is a low-cost, disposable patient-mounted medical robot
In a less gelatin-centric demo, the Harvard-based team behind the Robotically Steerable Probe showed off some Robopsy devices during our visit to the school, rings that can help medical imaging technology like CT, ultrasound and MR physically pinpoint precise locations on patients. The devices, which can hold up to ten needles, are lightweight, mounting directly on patients via adhesives or straps. The medical robots are made largely of inexpensive injection molded plastic parts, making them disposable after they've been used on a patient, popping the motors and other control electronics onto another device. In all, the team says Robopsy rings are "orders of magnitude" cheaper and lighter than other medical robotic devices. Check out a video of the one of the Robopsy devices running after the break.%Gallery-161787%
Hands-on with wireless, ultrasonic stylus and touchless gestures at MWC (video)
This isn't the first time you've heard of EPOS or XTR, but it's been quite some time since we've checked in with either of the outfits. So, imagine our surprise as we stumbled on new developments from each company as we perused the Texas Instruments booth at MWC. In the case of EPOS, we're shown a stylus that, in addition to offering traditional physical touch input, also allows users to interact with a device via ultrasound. The system is built upon TI's OMAP4 platform and requires that four microphones be placed at the corners of the screen. In this demonstration, we're shown how users can manipulate objects on a 3D plane via the Z-axis by pulling the pen away from the display. Next, we're shown a new application for the touchless gesturing system that XTR first debuted back in 2010. In this scenario, it's demonstrated how tablet owners could use the front-facing camera (at merely QVGA resolution) to flip through pages of a cookbook without worry of getting ingredients on the device. The concept software was developed by a French outfit known as Stonetrip, and also allows users to zoom and pan through the pages. You'll find demonstrations of each technology in a video after the break.
MobiUS smartphone ultrasound hits the market two years too late for relevancy
Mobisante's MobiUS smartphone ultrasound system scored FDA approval back in February, a big step towards getting the product out the door. Now the brainchild of former Microsoft bigwig Dr. Sailesh Chutani is finally available to order, the only problem is that it's based around two-year-old tech. At the heart of the MobiUS system is a Toshiba TG01 (it of Windows Mobile 6.5 stock) a now hopelessly outdated handset. Still, the probe and phone together cost $7,495, just a tiny fraction of what traditional ultrasound systems cost. We're sure there are small clinics, especially in poor and remote parts of the world, that are already eyeing Dr. Chutani's solution and, if his company scores enough orders, he hopes to cut the price in half. Maybe they can put some of that money towards developing a system that works with smartphone platforms people actually use -- like Android and iOS. Check out the demo video after the break.
Zoosh does mobile payments using ultrasound, no NFC chip required
Zoosh. That may or may not be what an ultrasonic payment sounds like to a dolphin, but it is definitely the name of a new mobile wallet technology developed by Silicon Valley start-up, Naratte. While Google and other major players have focused on traditional radio-based NFC, Naratte has been quietly testing its ultrasound system instead, motivated by the fact that it can work on ordinary handsets without the need for specialized NFC circuitry. Two phones can "zoosh" each other using nothing but their built-in microphones and speakers, so long as they're both running the necessary app. Moreover, Naratte claims that cash tills can be upgraded to hear the sweet jangle of ultrasonic cash for just $30 -- around a third of the cost of installing radio-based NFC hardware. So who knows? The last time you came this close to ultrasound was probably just before you were born, but one day you might find yourself using it to buy diapers. Scary.
Startup's headset will bathe your brain in ultrasound, might help fight cancer, too
The scientific community has spent a decade exploring ultrasound as a means of breaking through the blood-brain barrier -- a layer of tightly-packed cells that surround the brain's blood vessels, making it difficult for doctors to deliver chemotherapy and other treatments to cancer patients. Thus far, though, most ultrasound-based techniques have relied upon complex and often costly equipment, including MRI machines and infusion pumps. But researchers at a startup called Perfusion Technology think they may have come up with a less invasive, more cost-effective alternative -- a new headset designed to deliver low-intensity ultrasound therapy to the entire brain over the course of extended treatment periods. This approach differs markedly from most other methods, which typically target smaller areas of the brain with high-intensity ultrasound doses. As with most other potential breakthroughs, however, Perfusion's technique still needs to undergo some major testing. The company has already conducted several tests on animals, but the last time a similar method was tried on humans, many subjects ended up suffering from excessive bleeding. And that doesn't sound good at all.
