Nanotechnology

December 1, 2013
By Henry S. Kenyon

A prototype nanotechnology-based sensor offers the possibility for ubiquitous, networked, real-time chemical agent detection and tracking. By using easily produced super-small components, the devices potentially can be installed in a variety of devices, such as smartphones, robots or commercial appliances.

December 1, 2013
By George I. Seffers
A digital micromirror device functions as a light-based desktop nanofabrication. A mirror array directs light to the back of each pyramidal probe in a massive array, allowing the light to be funneled down each probe to a nanoscale aperture at each tip. The system allows the performance of near- or far-field optical lithography on a massive scale.

A new printing technology could move the production of nano-sized electronic components from multibillion-dollar facilities into the hands of users, including military users in the field. The device, which is about the size of a desktop printer, will allow rapid prototyping of nanomaterials, contribute to stem cell and other medical research, offer a range of commercial uses and save potentially billions of dollars. Furthermore, because the product builds upon already widely available technology, it could be fielded within two years, researchers say.

December 1, 2013
By Henry S. Kenyon
A Georgia Tech research team has developed a microchip that records and stores pressure and motion as memory. This piezoelectrically modulated resistive memory (PRM) system opens the way for new types of touch-screen interfaces, robotics control systems and prosthetics systems such as artificial skin.

Physical movement stored as memory in a microchip could lead to advances in touch screens, robot control devices and medical implants. Researchers are arraying nanowires on a microchip to form a write-read memory cell as part of ongoing work that could convert motions, such as a hand in a glove or pressing a display, into memory. Moving or putting pressure on the nanowires creates an electrical current that can be read and recorded as memory. Arrays of such cells offer the potential for a variety of user interface applications and for new ways to convert mechanical or biological actions into electronic data.

December 1, 2013
By Rita Boland
This Nanosensor Device for Cellphone Intergration and Chemical Sensing Network demonstrates why experts believe nano may be the next information technology, applying to almost all facets of future development.

Nanotechnology is the new cyber, according to several major leaders in the field. Just as cyber is entrenched across global society now, nano is poised to be the major capabilities enabler of the next decades. Expert members from the National Nanotechnology Initiative representing government and science disciplines say nano has great significance for the military and the general public.

May 17, 2013
By George I. Seffers

 

Researchers at the Lawrence Livermore National Laboratory intend to launch two additional pathfinder nanosatellites later this year. The goal is to develop a constellation of inexpensive satellites to avoid collisions in space.

May 1, 2013
By George I. Seffers
Johns Hopkins University research had demonstrated microdevices that actuate in response to chemicals, but this was not the most practical for defense applications.

U.S. Army researchers have developed micro materials that fold when hit with a low-intensity laser. The advance may eliminate the need for relatively bulky power systems—such as battery packs—on tiny robotic systems. It also could enable robotic microthrusters, unattended ground sensors, or even—theoretically—programmable, easily changeable camouflage patterns.

The microelectromechanical systems (MEMS) are shaped like stars with four, six or eight legs. The legs fold—like origami—when heated slightly with light from a low-level laser. That folding action is accomplished without the materials being tethered to batteries, wires or other any other power supply.

May 1, 2013
By Max Cacas
Marines at Camp Lejeune, North Carolina, assist each other in donning chemical and biological protection suits. Scientists are working to develop new fabrics that will minimize the need for the heavy, uncomfortable suits.

Academic, research and industry teams join forces to improve uniform materials.

New fabrics now under development will one day relieve troops from the burden of wearing additional garments to protect from chemical and biological attack. The effort, dubbed Second Skin, is being led by the Defense Threat Reduction Agency’s Chemical and Biological Technologies Department. The goal is to weave a new generation of multifunctional materials that can be manufactured into everyday military uniforms but use molecular-level technologies to protect against such attacks as soon as the wearer enters a contaminated area. The program is budgeted for $30 million over the next five years.

January 31, 2013
By Robert K. Ackerman
John Smart, president of the Acceleration Studies Foundation, tells the keynote luncheon audience that dramatic change is evolutionary and inevitable.

West 2013 Online Show Daily, Day 2

Quote of the Day: “How can you help me make the least-dumb decisions quicker?”—Terry Halvorsen, chief information officer (CIO) for the Department of the Navy, requesting cyber security solutions from industry

July 2005
By Maryann Lawlor

 
Art and science combine to create a representation of a desktop-scale molecular manufacturing appliance. As envisioned, tiny machines would join molecules then larger and larger parts in a convergent assembly process that makes products such as computers with a billion processors.
Nanotechnology could lead to next arms race; experts debate how to prepare.

July 2005
By Robert K. Ackerman

 
This microscopic mirror lies at the heart of many nanotechnology-driven devices. These mirrors can tilt in various directions to steer light to act as optical switches for information in the form of photons.
Longtime telecommunications scientists join forces with academia to push the state of the art.

July 2005
By Henry S. Kenyon

 
The porphyrin nanotubes developed by Sandia National Laboratory researchers John Shelnutt (l) and Zhongchun Wang use light to assemble themselves. These structures have a variety of potential applications in electronics, fuel cells and optics.
Photo-activated porphyrin nanotubes offer potential energy, manufacturing solutions.

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