Hasta La Gadget!

Move over, Canon, because scientists at the University of Lincoln have just seized the crown for world’s biggest CMOS image sensor with their new Dynamic range Adjustable for Medical Imaging Technology microchip — or ‘DyNAMITe,’ for short. Measuring a hefty 12.8 square cm (or about five square inches), DyNAMITe is roughly 200 times bigger than the chips you’d find in most PCs, making it the largest imager ever made on a wafer of standard, eight-inch diameter. This extra girth allows the active pixel sensor to capture images in high detail, with a 100-micrometer pitch boasting 1280 x 1280p aligned next to a 50-micron layer, carrying 2560 x 2560p. DyNAMITe can also run at up to 90fps and withstand high levels of radiation for several years, making it ideal for medical imaging, including radiotherapy and mammography. Researchers say these enhanced images could help doctors detect cancer in its earliest phases, while allowing them to monitor radiotherapy treatments more closely. No word on when we should expect to see DyNAMITe pop up in hospitals (or a Hasselblad back), but physicists at the Institute of Cancer Research and Royal Marsden Hospital are busy looking for other, potentially life-saving applications. Full PR after the break.

Continue reading World’s biggest CMOS sensor could help doctors detect and treat cancer

World’s biggest CMOS sensor could help doctors detect and treat cancer originally appeared on Engadget on Fri, 06 May 2011 09:26:00 EDT. Please see our terms for use of feeds.

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We’ve seen robots that perform brain surgery and lasers that cook tumors, and now a team of researchers are well on their way to bringing mobility to the battle against brain cancer. The NovoTTF-100A, which just received FDA approval, is basically a set of insulated electrodes, attached to an electronic box, that pumps low intensity electrical fields to the site of a freshly diagnosed GBM (glioblastoma multiforme) tumor. The fields, known as Tumor Treatment Fields (TTF), play off the electrically charged elements of cancer cells to stunt the tumor’s growth, and may in some cases actually reverse it. A recent test of the system showed comparable results to chemotherapy, without the usual lineup of side effects, including nausea, anemia, fatigue, and infection. Given, patients using the system are expected to wear the thing continuously, but we’d say walking around with a cap full of electrodes is a small price to pay for giving cancer the boot. Full PR after the break.

Continue reading Portable brain tumor treatment system kills cancer while you take out the trash

Portable brain tumor treatment system kills cancer while you take out the trash originally appeared on Engadget on Sun, 17 Apr 2011 03:03:00 EDT. Please see our terms for use of feeds.

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Disabled users have long been able to control computers with just the flick of an eye, but those hardware and software packages are prohibitively expensive. Heck, the surprisingly accurate Tobii PCEye is a veritable steal at $6,900. And, while we can’t vouch for its usability, engineering students at Brigham Young University have managed an impressive feat, by whipping up an eye-tracking Windows 7 tablet that costs under $1,500. The system was created as part of a partnership with EyeTech Digital Systems, which plans to market the devices in parts of the world where other eye-tracking solutions are unaffordable — like just about anywhere the roads aren’t paved with gold. We could even see a few able-bodied (but incredibly lazy) bloggers getting some use out of this — mornings around here would be a lot easier if we could double-fist piping hot coffee mugs while typing with our eyeballs.

Continue reading Students create affordable eye-tracking tablet for the disabled

Students create affordable eye-tracking tablet for the disabled originally appeared on Engadget on Fri, 15 Apr 2011 08:18:00 EDT. Please see our terms for use of feeds.

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Not going to front: we’ve a soft spot in our heart for focused beams of light. We’ve seen ’em rid the world of its space junk and set the pace of human hearts, and now, they’re taking a leading role in aural advancement. As improbable as it sounds, a research team from the University of Utah led by Richard Rabbitt has found that lasers may be able to give deaf people the ability to hear. Using a low-power infrared diode — similar to those in laser-pointers tormenting cats the world over — Professor Rabbitt found that exposing oyster toadfish hair cells (analogous to the cells found in humans’ inner ears) to infrared light caused them to release neurotransmitters and activate adjacent neurons. This could lead to laser-based ear implants able to stimulate focused areas of cells with thousands of sound wavelengths, as opposed to today’s electrode implants whose electrical current spreads through human tissue and limits the deliverable sonic range. Smaller, more efficient power supplies and light sources are needed before optical hearing aids become a reality, but if these newfangled lasers ever get their act together, we should be able to hear version two (and three) coming down the pike.

Lasers let deaf ears pick up what the sonic world is putting down originally appeared on Engadget on Thu, 31 Mar 2011 02:01:00 EDT. Please see our terms for use of feeds.

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No one keeps carbon nanotubes down — especially not these guys. The always popular allotropes have been enlisted by researchers at Rice University to create a composite material that gets stronger under pressure. When combined with polydimethylsiloxane, a rubbery polymer, the tubes form a nanocomposite that exhibits self-strengthening properties also exhibited in bones. During testing, the team found the material increased in stiffness by 12 percent after 3.5 million compressions. Apparently, the crew is stumped on why it reacts this way, but is no less eager to see it working in the real world — discussion is already underway to use the stuff as artificial cartilage. And here we thought aerogel was cool. Full PR after the break.

Continue reading Self-strengthening polymer nanocomposite works best under pressure

Self-strengthening polymer nanocomposite works best under pressure originally appeared on Engadget on Sun, 27 Mar 2011 06:13:00 EDT. Please see our terms for use of feeds.

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