Electronic Components
Pacemaker Powered by Beating Heart
Posted in Electronic Components, Power Supplies, Electronics, Implants & Prosthetics, Medical, News, MDB on Monday, 14 April 2014
An interdisciplinary research team from Northwestern University, Evanston, IL, the University of Illinois, Urbana-Champaign, and the University of Arizona, Tucson, has developed a flexible medical implant that harvests energy from the beating heart, which, they say, could be used to power pacemakers, defibrillators, and heart-rate monitors naturally and reliably and reduce or eliminate the need for batteries.
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Stretchable Antenna for Wearable Health Monitoring
Posted in Electronic Components, Electronics, Materials, Sensors, Medical, Patient Monitoring, News, MDB on Friday, 11 April 2014
Researchers at North Carolina State University, Raleigh, say that they have developed a new, stretchable antenna that can be incorporated into wearable technologies, such as health monitoring devices.
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Energy Generator Powered by Saliva
Posted in Electronic Components, Power Supplies, Electronics, Implants & Prosthetics, Medical, Patient Monitoring, News, MDB on Wednesday, 09 April 2014
An international team of engineers from Penn state University, University Park, PA, and King Abdullah University of Science and Technology, Saudi Arabia, have discovered that saliva-powered micro-sized microbial fuel cells can produce minute amounts of energy—enough to run on-chip applications, they say. This technology may be enough to fuel glucose monitoring for diabetics.
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Transient Electronics Dissolve When Triggered
Posted in Electronics & Computers, Electronic Components, Electronics, Environmental Monitoring, Green Design & Manufacturing, Materials, Composites, Plastics, Medical, Lighting, LEDs, Semiconductors & ICs, Defense, News on Friday, 04 April 2014
An Iowa State research team led by Reza Montazami is developing "transient materials" and "transient electronics" that can quickly and completely melt away when a trigger is activated. The development could mean that one day you might be able to send out a signal to destroy a lost credit card.

To demonstrate that potential, Montazami played a video showing a blue light-emitting diode mounted on a clear polymer composite base with the electrical leads embedded inside. After a drop of water, the base and wiring began to melt away.

As the technology develops, Montazami sees more and more potential for the commercial application of transient materials. A medical device, once its job is done, could harmlessly melt away inside a person’s body. A military device could collect and send its data and then disappear, leaving no trace of an intelligence mission. An environmental sensor could collect climate information, then wash away in the rain.

Source

Also: Read other Electronics & Computers tech briefs.
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Wireless Device Senses Chemical Vapors
Posted in Electronics & Computers, Electronic Components, Electronics, Manufacturing & Prototyping, Environmental Monitoring, Green Design & Manufacturing, Sensors, Detectors, Medical, Communications, Wireless, RF & Microwave Electronics, Semiconductors & ICs, Nanotechnology, Defense, News on Friday, 04 April 2014
A research team at the Georgia Tech Research Institute (GTRI) has developed a small electronic sensing device that can alert users wirelessly to the presence of chemical vapors in the atmosphere. The technology, which could be manufactured using familiar aerosol-jet printing techniques, is aimed at myriad applications in military, commercial, environmental, and healthcare areas.

The current design integrates nanotechnology and radio-frequency identification (RFID) capabilities into a small working prototype. An array of sensors uses carbon nanotubes and other nanomaterials to detect specific chemicals, while an RFID integrated circuit informs users about the presence and concentrations of those vapors at a safe distance wirelessly.

Because it is based on programmable digital technology, the RFID component can provide greater security, reliability and range – and much smaller size – than earlier sensor designs based on non-programmable analog technology. The present GTRI prototype is 10 centimeters square, but further designs are expected to squeeze a multiple-sensor array and an RFID chip into a one-millimeter-square device printable on paper or on flexible, durable substrates such as liquid crystal polymer.

Source

Also: Learn about Extended-Range Passive RFID and Sensor Tags.
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Scientists Demonstrate Electrical Properties of Topological Insulators
Posted in Electronics & Computers, Electronic Components, Board-Level Electronics, Power Management, Semiconductors & ICs, News on Tuesday, 01 April 2014
Scientists at the U.S. Naval Research Laboratory (NRL) have demonstrated for the first time that one can electrically access the remarkable properties predicted for a topological insulator (TI). They used a ferromagnetic metal/tunnel barrier contact as a voltage probe to detect the spin polarization created in the topologically protected surface states when an unpolarized bias current is applied. This accomplishment identifies a successful electrical approach that provides direct access to the TI surface state spin system, significantly advances our fundamental understanding of this new quantum state, and enables utilization of the remarkable properties these materials offer for future technological applications.
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Bending Light with a Tiny Chip
Posted in Electronics & Computers, Electronic Components, Board-Level Electronics, Photonics, Optics, Optical Components, Semiconductors & ICs, News on Tuesday, 01 April 2014
Imagine that you are in a meeting with coworkers or at a gathering of friends. You pull out your cell phone to show a presentation or a video on YouTube. But you don't use the tiny screen; your phone projects a bright, clear image onto a wall or a big screen. Such a technology may be on its way, thanks to a new light-bending silicon chip developed by researchers at Caltech.
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