Skip to Content

AOL Tech

disease posts

Scientists shoot down malaria-carrying mosquitoes with frickin' lasers


Seriously, is there anything a laser can't do? A team of mad scientists in Washington have concocted a system that could essentially eliminate malaria-carrying mosquitoes with lasers, and the whole thing can be built from parts sourced on eBay. The so-called mosquito laser is credited to an idea from Lowell Wood, an astrophysicist who worked with Edward Teller, the "architect of the original plan to use lasers to shield America from the rain of Soviet nuclear arms." In theory, at least, the technology could one day be used to draw a laser barrier of sorts around a village. Of course, the trick is to make the lasers powerful enough to smoke the bugs without harming humans -- any of you Earthlings up for a clinical trial or two?

[Via eHow]

Medtronic's implantable OCD treatment okayed by FDA

Looks like those brain pacemaker researchers are a bit late on this one, as folks at Medtronic are apt to get the jump on advanced OCD treatment given a recent FDA approval of their device. Hailed as the first implantable device "designed to deliver electrical therapy to the brain to suppress symptoms associated with severe obsessive-compulsive disorder," the Reclaim DBS (deep brain stimulation) Therapy was said to be able to treat OCD patients in cases where drugs and psychotherapy failed. Understandably, Medtronic is doing everything it can to get the product out by the middle of this year, and following up on its good fortune, it also proclaimed that it had started up a randomized clinical trial of DBS for treatment-resistant depression. There's no mention of an expected price, but apparently only 4,000 or so will be needed each year.

[Via Vos Iz Neias, thanks yossi]

Tattoo-like nanosensor could monitor glucose levels, enhance your cool factor

Make no mistake, there are quite a few sophisticated ways to monitor one's glucose levels, but we're pretty certain we've never seen an approach as simple and as bodacious as this. Massachusetts-based Draper Laboratories has stumbled upon a new embeddable nanosensor that could, at least in theory, eliminate those painful pricks endured today by so many diabetics. The so-called "injectable nanotech ink" could be inserted under the skin much like a tattoo, though Draper's Heather Clark notes that it "doesn't have to be a large, over-the-shoulder kind of tattoo." In fact, it can be as small as a few millimeters in size, though if it were us, we'd use it as the perfect excuse in order to plaster our backs with Ice Climbers. Testing of the new approach is expected to begin very soon, though that usually means it won't be ready for humans until at least a few years later. Ah well, plenty of time to dream up the perfect design, right?

[Via medGadget]

Cellphone hacked to analyze blood, detect diseases on the spot


Not that the whole using-cellphones-for-disease-detection is completely fresh, but the latest handset hack for medical purposes is still mighty impressive. UCLA researcher Dr. Aydogan Ozcan has essentially converted a standard cellphone into a portable blood tester of sorts, which is capable of detecting HIV, malaria and various other illnesses. Put as simply as possible, the device works by analyzing blood cells that are placed on an integrated off-the-shelf camera sensor and lit up with a filtered light source. Said light source exposes unique qualities of the cells, and from there, the doc's homegrown software interprets the data and determines what's what. So, has anyone given this guy the main line to NTT DoCoMo, or what?

[Thanks to everyone who sent this in]

Palm-sized lab could detect food-borne diseases

There are literally entire stores devoted to devices that detect drink spiking (okay, maybe not stores), but what about those of us concerned over food-borne pathogens? A crew of European researchers are addressing said worries by "creating one of only two prototype systems in the world that prepare samples and perform DNA tests on bacteria in a portable, easy-to-use and cost-effective chip." Essentially, the EU-funded OptoLabCard project is aiming to concoct a small, disposable laboratory that humans could carry around and use to detect diseases such as campylobacter and salmonella before ingesting contaminated grub. Team members are suggesting that a commercial product could be ready to roll within three years, with prices for each "lab" reaching as low as $0.50. 'Til then, always make your buddy have the first bite.

[Via Physorg]

Researchers craft new testing device to detect early Alzheimer's


We've heard that the "gold standard" pen and paper test seems to work fairly well at detecting the earliest stage of Alzheimer's disease, but gurus from Georgia Tech and Emory University have teamed up to develop a much quicker method for accomplishing the same. The ten-minute DETECT test utilizes a head-worn visor with a built-in LCD, headphones and a handheld controller, which the patient interacts with as he / she is put through a series of visual and auditory tests that "assess cognitive abilities relative to age," gauge reaction time and measure memory capabilities. Initial tests have purportedly shown it to have "similar accuracy" to the aforementioned pen and paper test (which takes around 90-minutes to administer), and while we've no idea when the device will be available for public use, its creators have already formed a firm (Zenda Technologies) to commercialize it. Finally, a legitimate use for head-mounted displays -- thought we'd never see the day.

[Via Wired]

Researchers clear up TV watching for visually impaired

Yeah, we've got HMDs for the visually impaired, but seriously, who's for sporting one of those things just to catch an afternoon soap? Thankfully, Dr. Eli Peli (and colleagues) from Harvard Medical School is lookin' out for said sect, and has developed a method for "enhancing the contrast of images of people and objects of interest on their digital televisions," which, during trials, was found to enhance legibility and overall enjoyment when watching. Furthermore, the technology is said to be the first to play nice with digital TV images, which seems fairly important considering that analog signals have but a few months to live here in America. Purportedly, the all-important modification that made the adjustments possible could be applied to HDTVs and digital STBs in the future, and sure enough, Peli has already sparked up conversation with Analog Devices in order to create a prototype chip for use in forthcoming sets. Now, if only clearing up those Get Smart reruns were this simple...

[Via InventorSpot, image courtesy of Harvard (PDF)]

Femtosecond laser pulses could safely destroy viruses, bacteria

The world is already well aware of just how potent (and useful) femtosecond lasers are, and a recent study conducted by a team of Arizona State University physicists explains how pulses could be used to dismantle viruses and bacteria without harming a single innocent cell. Rather than follow in the footsteps of indiscriminate laser treatment options, the group of Sun Devils reportedly figured out a way to "produce lethal vibrations in the protein coat of microorganisms," which has the potential to at least treat "blood-borne diseases such as AIDS and Hepatitis." The technique, dubbed ISRS (Impulsive Stimulated Raman Scattering), has shown to not harm healthy human cells while fighting the good fight against viral pathogens, and while there's no easy way to surmise how quickly we'll see this in action, we're gonna wait for a bit more proof before getting our hopes up.

[Via Switched]

NASA helps predict, prevent disease outbreaks

We could almost swear we've heard this same scenario played out in a 80s era sci-fi drama, but apparently, this ain't out of any movie script. By utilizing 14 orbiting satellites and enlisting the assistance of NASA's Applied Sciences Program, scientists are reportedly observing our planet's environment to "help predict and prevent infectious disease outbreaks around the world." Apparently, the satellites collect environmental change data, which is then forwarded on to the Centers for Disease Control and Prevention and the Department of Defense and broken down to estimate and track epidemics. The remote sensing technology is currently be used to target and track malaria (among other things), and NASA surveillance systems can also be used to determine if a given outbreak was caused by "natural circumstances" or if bioterrorism was to blame. Phew, at least we know 28 Days Later won't become an infamous example of life imitating art... right?

[Via Slashdot]

Four-armed surgical robot joins Edmonton hospital staff

While dexterous robots have been helping surgeons in America for some time, Edmonton's Royal Alexandra Hospital is finally getting with the program. Beginning in September, a four-armed surgical robot will be used in procedures to treat prostate cancer, and should provide a much improved in-depth view of the body as well as boosting overall agility while operating. One of the diminutive arms will grasp a camera while the others wield the tools, and trained surgeons will be controlling the action from a three-dimensional screen positioned at a nearby base. Notably, one of the primary reasons Canada has been slower to adopt this type of technology is the price, and while it did cost some $4 million to purchase and retrofit the system into the OR, the shorter recovery time and improved precision whilst operating will certainly prove worthwhile to the average patient.

Electrical fields deemed potentially harmful to your health

We've already heard that electricity could cause all sorts of fatal side effects, and it's all but conclusive that stray WiFi can warp your brain, but how come magnetic signals are helping people get their lives back together? If you haven't already guessed, here we have yet another alarmist story which claims that "electrical fields generated by everyday electrical equipment may cause an increased risk of respiratory diseases and infection." The study, published by Imperial scientists, strongly suggests that these toxic fields (some created by computers, no less) can attract airborne particles thanks to stray electrostatic charges, and can then lead to excess amounts of potentially unwholesome deposits making their way into one's lungs. Of course, unless these masterminds wrote their research up via pencil and paper while dressed in ESD suits, we'd say they're just as exposed as the rest of us.

Alzheimer's patients, caregivers receiving VeriMed RFID chips

Caring for those with Alzheimer's could be getting a whole lot less stressful, as VeriChip has reportedly doled out 25 VeriMed RFID implantable microchips at the Alzheimer's Community Care 2007 Alzheimer's Educational Conference. Of course, these aren't the first invasive chips that the company has crammed under folks' skin for one reason or another, but these data packin' devices are aiming to provide medical personnel "quick access to identification and medical records information in an emergency situation." Interestingly, not much else was said about future rollouts beyond this small sample trial, but we can't imagine these not showing up en masse (and in humans) once it gets the green light from regulators.

Virtual Hallucinating goggles make you temporarily Schizophrenic

We can't say we'd be first in line to get a dose of Schizophrenia or anything, but Janssen L.P.'s Virtual Hallucinations system shows promise of helping cops, paramedics, and social workers understand a bit more of what the afflicted go through. The technology consists of set of goggles and earphones that envelope you in one of two interactive scenarios that a typical Schizophrenic might face, including being a passenger on a bus in which the other riders continually vanish and reappear while stray birds attempt to invade the inside. The system is reportedly being trialed in a half dozen or so states, and professionals that had made it through the mind warp seem to have a new outlook on respecting and dealing with those with mental illnesses. Of course, if you're just interested in creeping yourself out, there's always easier alternatives.

[Via MedGadget]

Head-mounted display helps disabled walk

Although we've seen gait monitors and even prosthetic feet that assist individuals in regaining a more natural stride, scientists at Technion Institute of Technology in Israel have resorted to a head-mounted display for its rendition. This virtual reality device combines "auditory and visual feedback to improve walking speed and stride length in patients suffering from Multiple Sclerosis and Parkinson's disease," and provides the wearer with a "tiled-floor image" that apparently assists them in navigating nearly any terrain. The device is meant to take the place of normal muscle feedback mechanisms, and to provide said feedback to these disabled individuals so they can make adjustments and improve the efficiency of their walk. The HMD has already made its way to several medical centers and has purportedly yielded positive results, but there was no word on when this device would be commercially available.

[Via MedGadget]

Cellphones are dangerous/not dangerous, bee-friendly edition

As the saga continues, we've got yet another flip-flopped story rolling through in regard to the toxicity (or not) of cellphones to our environment. Just under a fortnight ago, a report based on an (admittedly lacking) research study claimed that Colony Collapse Disorder within bees was being encouraged by cellphone radiation. As expected, the researchers began living a life filled with Q&A sessions about the data, and now the "truth" is coming out. Essentially, the scientists are claiming that their data was "misinterpreted," and that the study actually looked at DECT phones and base stations, which transmit a "different frequency than mobiles." Furthermore, another member chimed in and boldly stated that their "studies cannot indicate that electromagnetic radiation is a cause of CCD." So that settles it -- until the next round of bickering begins, of course.

[Via Guardian]
Zune HD ExposedHTC Hero: Android Evolved
Follow us on TwitterEngadget Video



AOL News

Joystiq

Download Squad

TUAW

Daily Finance

Asylum

Autoblog

Switched.com

FanHouse

Autoblog Green