Transient Electronics Dissolve When Triggered

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. SourceAlso: Read other Electronics & Computers tech briefs.

Posted in: News, Defense, Electronic Components, Electronics, Electronics & Computers, Environmental Monitoring, Green Design & Manufacturing, LEDs, Lighting, Composites, Materials, Plastics, Medical, Semiconductors & ICs


Wireless Device Senses Chemical Vapors

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.SourceAlso: Learn about Extended-Range Passive RFID and Sensor Tags.

Posted in: News, Communications, Wireless, Defense, Electronic Components, Electronics, Electronics & Computers, Environmental Monitoring, Green Design & Manufacturing, Manufacturing & Prototyping, Medical, Nanotechnology, RF & Microwave Electronics, Semiconductors & ICs, Detectors, Sensors


Electron Beam Writer Enables Microfabrication

Integrated electronics could activate prosthetics. The new electron beam writer housed in the cleanroom facility at the Qualcomm Institute, previously the UCSD division of the California Institute of Telecommunications and Information Technology, is important for two major areas of research by Shadi Dayeh, PhD, an electrical and computer engineering professor. He is developing next-generation, nanoscale transistors for integrated electronics. At the same time, he is working to develop neural probes that can extract electrical signals from brain cells and transmit the information to a prosthetic device or computer. To achieve this level of signal extraction or manipulation requires tiny sensors spaced very closely together for the highest resolution and signal acquisition. Enter the new electron beam writer. (See Figure 1)

Posted in: Briefs, MDB, Briefs, Electronics, Electronics & Computers, Implants & Prosthetics, Medical, Patient Monitoring, Optics, Photonics, Semiconductors & ICs, Sensors


Heart Pump with Behind-the-Ear Power Connector

One-third of patients with heart pumps develop infection at abdominal connection. Cardiac surgeons and cardiologists at the University of Maryland Heart Center are part of a multi-center clinical trial evaluating the efficacy of powering heart pumps through a skull-based connector behind the ear. The pumps, called left ventricular assist devices (LVADs), support the heart’s main pumping chamber, the left ventricle. LVADs are implanted in the chest and powered with external batteries. Typically, these devices, which are used for patients with severe heart failure, are powered through an electrical cord connected at the abdomen, where potentially deadly infections can develop.

Posted in: Briefs, MDB, Briefs, Electronic Components, Electronics, Power Management, Power Supplies, Drug Delivery & Fluid Handling, Implants & Prosthetics, Medical, Patient Monitoring, Fluid Handling, Power Transmission


Robotic Exoskeleton Vastly Improves Quality of Life

Worldwide an estimated 185 million people use a wheelchair daily. A company based in Auckland, New Zealand, has developed an innovative robotic technology that helps people with mobility impairment get back on their feet— the Rex Bionics robotic exoskeleton. Its integrated maxon motors help to ensure smooth limb movement.

Posted in: Features, MDB, Articles, Electronics, Power Management, Power Supplies, Manufacturing & Prototyping, Mechanical Components, Implants & Prosthetics, Medical, Orthopedics, Rehabilitation & Physical Therapy, Motion Control, Motors & Drives, Positioning Equipment, Power Transmission, Sensors


Wireless Body Area Networks for Health Monitoring

A wireless personal health monitoring system using smartphones to upload data could revolutionize US healthcare. Faculty in the departments of electrical and computer engineering are leading research in mHealth at The University of Alabama in Huntsville. mHealth capitalizes on what Dr. Emil Jovanov, associate dean for graduate education and research in the College of Engineering, calls “major revolutions” in computer informatics, smartphones, and energy-efficient and miniaturized electronics and sensors. It can provide health information to the patient directly, to the physician via the Internet, and to researchers as aggregated databases.

Posted in: Briefs, MDB, Briefs, Electronics, Diagnostics, FDA Compliance/Regulatory Affairs, Imaging, Medical, Software


Automating a Bottling Plant for Reaction Vessels

Lubrication-free lead screws fit the bill for feed mechanism IVD machine Tasked with the design and build of a fully automated in vitro diagnostics (IVD) bottling plant, an engineering firm specializing in the development of analytical medical equipment found itself presented with a unique challenge.

Posted in: Briefs, MDB, Briefs, Electronics, Automation & Controls, Diagnostics, Imaging, Medical, Machinery & Automation


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