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physorg - latest science and technology news stories
  • Researchers design a more durable MEMS switch
    Researchers from Binghamton University, State University of New York have developed a way to make cell phones and power lines more durable. 
  • Glassy carbon microneedles: A new transdermal drug delivery device
    Microneedles are designed to infuse medications transdermally (through the skin) and relatively painlessly during clinical applications. In a recent study, Richa Mishra and her colleagues developed a new technique to convert polymer films into a fracture-resistant glassy form of carbon to develop microneedles. The optimized transdermal drug delivery device was fabricated using photolithography to form a biocompatible and robust microneedle for pre-clinical applications.
  • Development of MEMS sensor chip equipped with ultra-high quality diamond cantilevers
    A NIMS-led research group succeeded in developing a high-quality diamond cantilever with among the highest quality (Q) factor values at room temperature ever achieved. The group also succeeded for the first time in the world in developing a single crystal diamond microelectromechanical systems (MEMS) sensor chip that can be actuated and sensed by electrical signals. These achievements may popularize research on diamond MEMS with significantly higher sensitivity and greater reliability than existing silicon MEMS.
  • Laser-pointing system could help tiny satellites transmit data to Earth
    A new laser-pointing platform developed at MIT may help launch miniature satellites into the high-rate data game.
  • Collagen nanofibrils in mammalian tissues get stronger with exercise
    Collagen is the fundamental building block of muscles, tissues, tendons, and ligaments in mammals. It is also widely used in reconstructive and cosmetic surgery. Although scientists have a good understanding about how it behaves at the tissue-level, some key mechanical properties of collagen at the nanoscale still remain elusive. A recent experimental study conducted by researchers at the University of Illinois at Urbana-Champaign, Washington University, and Columbia University on nanoscale collagen fibrils reported on, previously unforeseen, reasons why collagen is such a resilient material.
  • How microscopic machines can fail in the blink of an eye
    How long can tiny gears and other microscopic moving parts last before they wear out? What are the warning signs that these components are about to fail, which can happen in just a few tenths of a second? Striving to provide clear answers to these questions, researchers at the National Institute of Standards and Technology (NIST) have developed a method for more quickly tracking microelectromechanical systems (MEMS) as they work and, just as importantly, as they stop working.
  • Graphene flickers at 400Hz in 2500ppi displays
    With virtual reality (VR) sizzling in every electronic fair, there is a need for displays with higher resolution, frame rates and power efficiency. Now, a joint collaboration of researchers from SCALE Nanotech, Graphenea and TU Delft have used graphene to make reflective-type displays that operate faster and at much higher resolution than existing technologies.
  • Spinning the light: The world's smallest optical gyroscope
    Gyroscopes are devices that help vehicles, drones, and wearable and handheld electronic devices know their orientation in three-dimensional space. They are commonplace in just about every bit of technology we rely on every day. Originally, gyroscopes were sets of nested wheels, each spinning on a different axis. But open up a cell phone today, and you will find a microelectromechanical sensor (MEMS), the modern-day equivalent, which measures changes in the forces acting on two identical masses that are oscillating and moving in opposite directions. These MEMS gyroscopes are limited in their sensitivity, so optical gyroscopes have been developed to perform the same function but with no moving parts and a greater degree of accuracy using a phenomenon called the Sagnac effect.


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