'Epidermal Electronics' Paste Peelable Circuitry On Skin

'Epidermal Electronics' Paste Peelable Circuitry On Skin

Postby PharmD » Fri Aug 12, 2011 12:41 pm

Someday soon, patients in the hospital is not connected to wires and monitors - on the contrary, the patches will be temporarily electronic tattooed on his body. Physicians will be able to monitor vital signs, no poking and prodding, and patients who use patches, neck even be able to communicate with robots that translate muscle movements in the throat in simple language.

A new electronic skin patch is no more invasive than a temporary tattoo, a breakthrough in human-machine interfaces. Tiny semiconductor circuits that extend to the skin can be rubbed on the skin of a person to control muscle activity, the activity of the heart or even brain waves in real time without using bulky medical equipment.

The electronic circuit is initially epidermal sheet mounted on a super thin plastic and laminated soluble with water on the skin as a temporary tattoo. Once you do, you can fold, wrinkle and stretch along with the skin of a user - it does not pop off or pressure, which is no small thing considering it is a high performance semiconductor. When no longer needed, it appears as a layer of skin that is sunburned. Watch the video below to see it in action.

The devices attach to the skin with glue or static electricity, but near contact atomic force called van der Waals forces, which are essentially invisible to the user. Membership lasts up to 24 hours, the researchers reported.
Researchers at the University of Illinois, who came up with this circuit device made with a wide range of components to prove it can work: sensors, LEDs, transistors, capacitors, radio frequency and wireless antennas, according to the user interface. The devices can draw power induction or mini solar panels.

The inventors say it could be used for various medical applications, especially sensors that monitor heart and muscle activity, which currently require conductive gels, tapes and wires. To demonstrate that measures the electrical activity produced by the heart, brain and skeletal muscles, which in this week's issue of the journal Science.

The study of brain function in a normal environment is impossible now - the use of an EEG, the patient would be in a lab or use any type of helmet complicated - but the patch could make possible. Or imagine a patient with a degenerative disease that can not communicate, but could use the patches to connect to a computer.

In an experiment of the throat patch, the patch was sufficiently precise to the research team to differentiate multiple words, according to the National Science Foundation. They were even able to control a video game voice-activated with an accuracy above 90 percent.

"The technology can connect the physical world and cyberspace in a very natural feel very comfortable," said UI electrical and computer engineering Professor Todd Coleman, who co-led the research.

The circuits are made possible by new manufacturing methods that allow bending versions of semiconductors that are fragile, when in bulk. The research team also included researchers from Northwestern University engineering, has developed a new geometry they call "serpentine filamentous" according to a news release from IU. The circuits of different devices are fabricated in the form of tiny wires, squiggled as shown in the picture above. Form circuits' wavy allowed bend, twist, crack and stretch while maintaining functionality.

"The disappearance of electronics and biology is really the key point here," said engineering professor at Northwestern Yonggang Huang. "All the established forms of electronics are hard, rigid. Biology is smooth and elastic. They are two different worlds. This is a form of truth to be integrated."

Adapted from: http://www.popsci.com/popsci/
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