Tag Archives: spectrometer

iPhone biosensor cradle brings us one step closer to having tricorders (video)

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iPhone biosensor cradle brings us one step closer to having tricorders video

It seems like every day we're getting a little bit closer to having tricorders, and today's no exception. Researchers at the University of Illinois at Urbana-Champaign have designed hardware and software that turns the iPhone into a powerful biosensor that's useful for toxin and pathogen testing as well as medical diagnosis. The package consists of a cradle that contains an assortment of lenses and filters which line up with the handset's camera, along with an app that guides the user through the testing process. At the core of the device is a photonic crystal slide which basically turns the iPhone into a high-resolution spectrometer. While the cradle only contains about $200 worth of parts, it's just as accurate as laboratory equipment costing tens of thousands of dollars, with the added bonus of being hand-held. The team just received an NSF grant to explore other applications for the device and is working on a cradle for Android phones. Hit the break for a demo video and a peek into the future.

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Source: University of Illinois

UCSB sensor sniffs explosives through microfluidics, might replace Rover at the airport (video)

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UCSB sensor sniffs explosives through microfluidics, might replace Rover at the airport video

We're sure that most sniffer dogs would rather be playing fetch than hunting for bombs in luggage. If UC Santa Barbara has its way with a new sensor, those canines will have a lot more free time on their hands. The device manages a snout-like sensitivity by concentrating molecules in microfluidic channels whose nanoparticles boost any spectral signatures when they're hit by a laser spectrometer. Although the main technology fits into a small chip, it can detect vapors from explosives and other materials at a level of one part per billion or better; that's enough to put those pups out of work. To that end, the university is very much bent on commercializing its efforts and has already licensed the method to SpectraFluidics. We may see the technology first on the battlefield when the research involves funding from DARPA and the US Army, but it's no big stretch to imagine the sensor checking for drugs and explosives at the airport -- without ever needing a kibble break.

Continue reading UCSB sensor sniffs explosives through microfluidics, might replace Rover at the airport (video)

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Via: Gizmag

Source: UCSB

iPhone 5 chemical study shows a green Apple, leaves room for improvement

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iPhone 5 chemical study shows a green Apple, leaves room for more improvement

Eventually, that shiny new iPhone 5 will have to meet its untimely end, whether it's in a landfill or (preferably) a recycling company's machinery. When it does, you'll at least be glad to know that Apple has kept the toxin levels down. HealthyStuff and iFixit have dissected the extra skinny smartphone and put it in the same "low concern" category for potential harm that's normally occupied by phones wearing their green credentials on their sleeves. Lest anyone rush to tell Greenpeace about the feat, just remember that there's a difference between proficiency at excising dangerous chemicals and getting rid of them completely: HealthyStuff still found small traces of bromine, chlorine, lead and mercury in the iPhone 5's construction, which could pose risks if the handset is ever broken apart or melted for scrap. Some concern also exists that the x-ray fluorescence spectrometer doesn't reveal the full extent of any toxic materials. Whether or not these remain sore points for you, the new iPhone is at least easier on the eco-friendly conscience than most of its peers.

Continue reading iPhone 5 chemical study shows a green Apple, leaves room for improvement

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iPhone 5 chemical study shows a green Apple, leaves room for improvement originally appeared on Engadget on Thu, 04 Oct 2012 17:55:00 EDT. Please see our terms for use of feeds.

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Insert Coin: Public Lab DIY Spectrometer wants to be the ‘Shazam of materials’

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In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you'd like to pitch a project, please send us a tip with "Insert Coin" as the subject line.

Insert Coin Public Lab DIY Spectrometer wants to be the 'Shazam of materials'

Spectrometers are a pretty invaluable piece of lab equipment. They make it rather simple to identify substances by analyzing the light that they absorb. Problem is, for the hobby scientist, they typically cost thousands of dollars. Jeffrey Yoo Warren's latest Kickstarter project aims to put these powerful tools in the hands of your average Joe, with an open-source DYI model, where the key ingredient is a shard of DVD-R. Using that piece of plastic in conjunction with black paper and a webcam, his $35 kit allows anyone to quickly and easily reveal the spectral fingerprint of any substance. There's even a $5 model that works in conjunction with a free Android app, turning your smartphone into a legit lab tool. The goal, ultimately, is to build up a library of substances that can easily be matched with samples caught in the wild -- in essence, to build a "Shazam for materials." The original inspiration was an effort to identify contaminants left behind by the BP oil spill, but Warren also touts its ability to reveal hidden dyes in laundry detergents and to differentiate wines or olive oils. For those with grander ambitions, a $300 pledge will score you a pre-built and calibrated desktop spectrometer, complete with pyrex dishes and a full spectrum lamp. To help fund this backyard (or back pocket) science revolution, hit up the source link.

Continue reading Insert Coin: Public Lab DIY Spectrometer wants to be the 'Shazam of materials'

Insert Coin: Public Lab DIY Spectrometer wants to be the 'Shazam of materials' originally appeared on Engadget on Tue, 28 Aug 2012 08:00:00 EDT. Please see our terms for use of feeds.

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