Friday, August 12, 2011

Electronic ‘Tattoo’

Our Barcodes are Finally In.. Electronic Tattoos to 'Monitor Vital Signs' (..Your Arm, Please..) http://www.youtube.com/watch?v=oC4bEWZDHuI

Electronic ‘Tattoo’ May Offer New Flexible Way to Monitor Brain, Heart
11 August 2011
, by Elizabeth Lopatto (Bloomberg)
http://www.bloomberg.com/news/2011-08-11/electronic-tattoo-may-offer-new-flexible-way-to-monitor-brain-heart.html

http://www.independent.co.uk/news/science/how-computers-will-soon-get-under-our-skin-2336246.html



A hair-thin electronic patch that adheres to the skin like a temporary tattoo could transform medical sensing, computer gaming and even spy operations, according to a US study published Thursday.

Electronic skin tattoo has medical, gaming, spy uses
http://www.breitbart.com/article.php?id=CNG.6e1e2ad90e2d94b12b6258b7e9c5b33d.611&show_article=1

Electronic skin tattoo has medical, gaming, spy uses
http://www.breitbart.com/
Aug 11 03:43 PM US/Eastern

A hair-thin electronic patch that adheres to the skin like a temporary tattoo could transform medical sensing, computer gaming and even spy operations, according to a US study published Thursday. The micro-electronics technology, called an epidermal electronic system (EES), was developed by an international team of researchers from the United States, China and Singapore, and is described in the journal Science. "It's a technology that blurs the distinction between electronics and biology," said co-author John Rogers, a professor in materials science and engineering at the University of Illinois at Urbana-Champaign. "Our goal was to develop an electronic technology that could integrate with the skin in a way that is mechanically and physiologically invisible to the user." The patch could be used instead of bulky electrodes to monitor brain, heart and muscle tissue activity and when placed on the throat it allowed users to operate a voice-activated video game with better than 90 percent accuracy. "This type of device might provide utility for those who suffer from certain diseases of the larynx," said Rogers. "It could also form the basis of a sub-vocal communication capability, suitable for covert or other uses." The wireless device is nearly weightless and requires so little power it can fuel itself with miniature solar collectors or by picking up stray or transmitted electromagnetic radiation, the study said. Less than 50-microns thick -- slightly thinner than a human hair -- the devices are able to adhere to the skin without glue or sticky material. "Forces called van der Waals interactions dominate the adhesion at the molecular level, so the electronic tattoos adhere to the skin without any glues and stay in place for hours," said the study. Northwestern University engineer Yonggang Huang said the patch was "as soft as the human skin." Rogers and Huang have been working together on the technology for the past six years. They have already designed flexible electronics for hemispherical camera sensors and are now focused on adding battery power and other energy options. The devices might find future uses in patients with sleep apnea, babies who need neonatal care and for making electronic bandages to help skin heal from wounds and burns.


How covert military operations will stick computers under our skin
A stick-on circuit can monitor heart rate as well as conventional devices, but is weightless, wireless and inconspicuous
http://www.independent.co.uk/news/science/how-computers-will-soon-get-under-our-skin-2336246.html
By Steve Connor, Science Editor
Friday, 12 August 2011

The development could mark a new era in consumer electronics. The technology could be used for applications ranging from medical diagnosis to covert military operations. The "epidermal electronic system" relies on a highly flexible electrical circuit composed of snake-like conducting channels that can bend and stretch without affecting performance. The circuit is about the size of a postage stamp, is thinner than a human hair and sticks to the skin by natural electrostatic forces rather than glue. "We think this could be an important conceptual advance in wearable electronics, to achieve something that is almost unnoticeable to the wearer. The technology can connect you to the physical world and the cyberworld in a very natural way that feels comfortable," said Professor Todd Coleman of the University of Illinois at Urbana-Champaign, who led the research team. A simple stick-on circuit can monitor a person's heart rate and muscle movements as well as conventional medical monitors, but with the benefit of being weightless and almost completely undetectable. Scientists said it may also be possible to build a circuit for detecting throat movements around the larynx in order to transmit the information wirelessly as a way of recording a person's speech, even if they are not making any discernible sounds. Tests have already shown that such a system can be used to control a voice-activated computer game, and one suggestion is that a stick-on voicebox circuit could be used in covert police operations where it might be too dangerous to speak into a radio transmitter.

"The blurring of electronics and biology is really the key point here," said Yonggang Huang, professor of engineering at Northwestern University in Evanston, Illinois. "All established forms of electronics are hard, rigid. Biology is soft, elastic. It's two different worlds. This is a way to truly integrate them." Engineers have built test circuits mounted on a thin, rubbery substrate that adheres to the skin. The circuits have included sensors, light-emitting diodes, transistors, radio frequency capacitors, wireless antennas, conductive coils and solar cells. "We threw everything in our bag of tricks on to that platform, and then added a few other new ideas on top of those, to show that we could make it work," said John Rogers, professor of engineering at the University of Illinois at Urbana-Champaign, a lead author of the study, published in the journal Science.

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