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Glucose-Sensing Contact Lens Enables Noninvasive Testing

This illustration shows the schematic procedure for the fabrication of a surface-enhanced Raman scattering contact lens via transfer printing. Blood testing is the standard option for checking glucose levels, but a new technology could allow noninvasive testing via a contact lens that samples glucose levels in tears. Glucose is a good target for optical sensing, and especially for what is known as surface-enhanced Raman scattering spectroscopy.

Posted in: News

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3D-Printed Robots Feature Shock-Absorbing Skins

A “programmable viscoelastic material” (PVM) from the Massachusetts Institute of Technology (MIT) allows users to program every single part of a 3D-printed object, including exact levels of stiffness and elasticity.

Posted in: News, Machinery & Automation, Robotics

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Researchers Create Smallest Transistor Ever

A research team led by faculty scientist Ali Javey at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has created a transistor with a working 1-nanometer gate — the smallest to date.

Posted in: News, Board-Level Electronics, Electronic Components, Electronics, Electronics & Computers, PCs/Portable Computers

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Air Force Is Developing Mach 18 Wind Tunnel

Mike Smith, AEDC optical diagnostic physicist, verifies the Coherent Anti-Stokes Raman Spectroscopy system is functioning properly prior to conducting tests in support of risk reduction for a new test capability that will increase Mach number of AEDC Hypervelocity Wind Tunnel 9 at White Oak, Md. (U.S. Air Force photo/A.J. Spicer) The Arnold Engineering Development Center (AEDC) Hypervelocity Wind Tunnel 9 team is conducting tests in support of risk reduction for a new test capability that will be revolutionary for AEDC and the U.S. Air Force. The capability involves increasing the Mach number of what AEDC is currently able to achieve at Tunnel 9 in White Oak, Md., from Mach 14 to Mach 18.

Posted in: News

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Software Gives Bomb Techs X-Ray Vision

In a training session, bomb techs use Sandia National Laboratories’ XTK software to stitch together X-ray images of a suspicious package. The XTK team spent hundreds of hours with Explosive Ordnance Disposal technicians learning how they work. (Photo courtesy of the National Nuclear Security Administration) In the chaos that followed the terrorist attack at the 2013 Boston Marathon, bomb squads scanned packages at the scene for explosive devices. Two homemade pressure cooker bombs had killed three people and injured more than 250, and techs quickly had to determine if more were waiting to blow up.

Posted in: News

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High-Tech UAV Performs Recon, Defends Brigade

Spc. Jacob Veil, unmanned aircraft systems repairer, pushes an RQ-7B Shadow unmanned aerial vehicle outside a hangar at Wheeler Army Airfield, Hawaii. (Photo: Staff Sgt. Armando Limon) Soldiers assigned to the Tactical Unmanned Aircraft System (TUAS) Platoon, Company D, 29th Brigade Engineer Battalion, 3rd Brigade Combat Team, 25th Infantry Division, perform daily checks on their RQ-7B Shadow unmanned aerial vehicle, a small, lightweight UAV that provides invaluable service for the battalions of the 3rd BCT.

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New Device Enables Sample Processing and Optical Detection on Single Chip

A new optofluidic platform for biological sample processing and optical analysis is made of polydimethylsiloxane (PDMS) and features tunable optics and novel “lightvalves.” (C. Lagattuta) For well over a decade, electrical engineer Holger Schmidt has been developing devices for optical analysis of samples on integrated chip-based platforms, with applications in areas such as biological sensors, virus detection, and chemical analysis. The latest device from his lab is based on novel technology that combines high-performance microfluidics for sample processing with dynamic optical tuning and switching, all on a low-cost "chip" made of a flexible silicone material.

Posted in: News

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