Researchers have developed a new kind of anti-theft system, based on a woven fabric, that triggers an alarm when penetrated. Because of the fine lattice of conductive threads woven into the material, the fabric can notify the precise location of a failure, allowing the source of a break-in to be quickly identified. The invention could be significantly cheaper than other burglary detection systems.
In spin-based electronics, the spin of the electron is used as a carrier of information. To meet the need for faster electronics, the speed must be increased as far as possible. Uppsala University physicists have shown how spin information can be transmitted using spin currents at terahertz speeds, a thousand times faster than today.
The frequency at which droplets emerge is controlled by an acoustic trigger, which can be tuned so that each droplet containing a protein or virus meets an
An international research collaboration led by scientists in the U.K. has developed a new approach to quantum computing that could lead more widespread use of new quantum technologies. The breakthrough has been a move from glass-based circuitry that allowed circuits to manipulate photons to a silicon-based technology that accomplishes the same calculations using quantum mechanical effects.
A "magic carpet" which can immediately detect when someone has fallen and can help to predict mobility problems has been demonstrated by University of Manchester scientists. Plastic optical fibers, laid on the underlay of a carpet, can bend when anyone treads on it and map, in real time, their walking patterns.
Because of the proliferation of mobile wireless devices, there is not enough radio spectrum to account for everybody's needs. To counter the problem, industry is trying to build systems that operate with more sharply defined channels so that more of them can fit within the available bandwidth. At Purdue University, the recent invention of nanoelectromechanical resonators may provide the solution.
Engineers at Cornell University have invented a way to pattern single atom films of graphene and boron nitride, an insulator, without the use of a silicon substrate. The technique, called patterned regrowth, is reliant on conventional silicon photolithography technology and could lead to substrate-free circuits that would be atomically thin yet retain high tensile strength and superior electrical performance.
In attempt to achieve better control of heat flows in electronic devices, a researcher in Finland has invented two new mesoscopic devices based on the behavior of single electrons in a constructed system. The inventions, which include a diode, or rectifier, specifically address the heat carried by an electron and help produce a strongly asymmetric heat flow. The next step will be to manage larger currents.
A research university in Germany has recently won first place a competition between “unconventional” computing solutions with something called a MICREAgent lablet. The unusual invention is a self-assembling electronic device almost as small as a biological cell. At its heart is a 3D microchip, or lablet, that can produce desired chemicals or coatings when given electronic instructions.
Flat panel displays and mobile phones require thin, efficient, and low-cost light emitters, which are typically made from pixels wired to complex electronic circuits. Engineers in Singapore have now developed a display technology that requires a much simpler architecture: a thin perforated gold film with a liquid crystal layer.
A critical element in any microchip is an inverter—an electronic component that spits out zeros when it is given ones, and vice versa. Complementary metal-oxide-semiconductor, or CMOS, is the industry standard for this type of component, but still requires billions of dollars to achieve production scale. Researchers have recently pioneered a room-temperature additive process that creates a nanoscale inverter quickly and at low cost.
During the next four years, research teams who have been the recipients of 15 innovation grants totalling $30 million from the National Science Foundation will pursue transformative, fundamental research in three emerging areas: flexible electronic systems that can interface with the body; self-folding materials and structures; and large-scale chemical production from photosynthesis.
To control the 3D shape of engineered tissue, researchers grow cells on tiny, sponge-like scaffolds. These devices can be implanted into patients or used in the laboratory to study tissue responses to potential drugs. A team of researchers has now added a new element to tissue scaffolds: electronic sensors. These sensors could be used to monitor electrical activity in the tissue surrounding the scaffold, control drug release, or screen drug candidates for their effects on the beating of heart tissue.
At outdoor athletic competitions?at the Olympic Games, for example?athletes pushed themselves to the limit. But it’s hard to depict this in pictures alone. Researchers at the Fraunhofer Institute in Germany have created an intelligent camera that instantly delivers more complete picture of the action, supplying additional metadata acceleration, temperature, or heart rate.
A team of organic chemists have discovered they can create very long crystals with desirable properties using just two small organic molecules that are extremely attracted to each other. The attraction between the two molecules causes them to self assemble into an ordered network, and, most importantly, they possess the ferroelectric properties that are useful in computing.
Research by Nosang Myung, a professor at the University of California, Riverside has enabled Riverside, Calif.-based Nano Engineered Applications Inc. to develop an "electronic nose" prototype that can detect small quantities of harmful airborne substances.
A team of researchers at in Japan has demonstrated a new material that promises to eliminate loss in electrical power transmission. Their methodology for solving this classic energy problem is based on a highly exotic type of magnetic semiconductor first theorized less than a decade ago—a magnetic topological insulator.
A research team at the University of Santa Barbara has designed and fabricated a quantum processor capable of factoring a composite number—in this case the number 15—into its constituent prime factors, 3 and 5. Although modest compared to, say, a 600-digit number, the algorithm they developed was right about half the time, matching theoretical predictions and marking a milestone on the trail of building a stronger quantum computer.
In order to preserve the integrity of data in a quantum computer, the quantum mechanical system must be stable and shielded. But the information must also go in and come out. Researchers in France and Germany report they have done this for the first time by reading out the quantum state of an atom directly by using electrodes.
The Robust Robotics Group at MIT that won the last Association for Unmanned Vehicle Systems International competition has set for itself an even tougher challenge: developing autonomous-control algorithms for the indoor flight of GPS-denied airplanes. Their work has produced an autonomous airplane that has completed a series of successful flight tests in a subterranean parking garage.
Researchers in Korea have created what they call a rectenna—a combination of an antenna and a rectifier—which converts alternating current into direct current. For a price of just one penny per unit the device can be placed onto objects such as price tags, logos, and signage so that we can read product information on our smartphones with one simple swipe.
On August 1, 2007, without warning, the roadway suddenly disappeared beneath drivers on Minneapolis' I-35W Bridge, killing 13. In the five years since, advances in wireless sensor technology are making warning systems to prevent such tragedies affordable and practical. Both startups and federally initiatives are close to releasing systems that will be suitable for commercial use.
Plastic semiconductors have an important design flaw: The electronic current is influenced by poorly understood "charge traps" in the material. A new study by an international team of researchers reveals a common mechanism underlying these traps and provides a theoretical framework to design trap-free plastic electronics.
A Tennessee company has licensed award-winning software from Oak Ridge National Laboratory (ORNL) that will help industries install wireless networks more cost-effectively in challenging environments such as mines, offshore drilling platforms and factory floors. Networcsim signed an agreement today to license the Radio Channel Simulator software, which won an R&D 100 Award this month.
A new semiconductor laser device, the smallest ever built, was created at the University of Texas at Austin and is constructed of a gallium nitride nanorod that is partially filled with indium gallium nitride. Operating below the 3D diffraction limit, the nanolaser emits a green light that is too small to be visible to the naked eye.