#Terahertz sensor achieves faster detection of hidden objects A new type of terahertz sensor, claimed to be much faster than competing technologies used to detect
when electromagnetic radiation emitted by the target object is absorbed by the Q-Eye sensor, even down to the level of a single photon.
and detection performance and our initial calculations indicated world-beating detector capability all this and using silicon."
large numbers of detector chips containing designs matched to a particular application can easily be fabricated on 300mm wafers with great uniformity.
This revolutionary e-cooling process is the secret to Q-Eye sensor performance, enabling rapid imaging and material identification.
because the sensitivity of our sensor is much higher and our processing speed is greater than anything else in the marketplace at the moment.
#Improved, cheaper hybrid solar cell material created Researchers at Lithuania Kaunas University of Technology (KTU) Organic chemistry department have developed a new semiconductor material,
ffers a much cheaper alternative to those currently used in hybrid solar cells The efficiency of the new semiconductor methoxydiphenylamine-substituted carbazole,
The solar cells containing organic semiconductors created at KTU were constructed and tested by physicists at Lausanne. The tests revealed that the efficiency of the cellsconverting solar energy into electricity was 16.9%.
That means that our semiconductors have similar characteristics to the known alternatives but are much cheaper. he paper,
lmost all solar cells are made from inorganic semiconductors. Hybrid, semi-organic solar cells are still being developed and perfected at the research centers all over the world.
and we strongly believe that it can be also an ideal candidate for other optoelectronic applications such as OLEDS
Scientists at the LHCB detector, where they are researching what happened after the Big bang, recently found signs of the pentaquark in a powerful proton collision.
an Icelandic orthopaedics company, has developed tiny implanted myoelectric sensors (IMES) that helped amputees to control their bionic prosthetic limbs with the commands sent from their brain.
Ossur's Orthopedic surgeon and director of research and development, Thorvaldur implanted the tiny sensors into the residual muscle tissue of two amputees that they said is responsible for triggering the movement in the prosthesis via a receiver.
The Implanted Myoelectric Sensors (IMES) is 5 millimetres long and 3mm wide. IMES were provided by the United states-based Alfred Mann Foundation,
#Development of Single-Molecule Diode Revolutionizes Nanotechnology A paper published on May 25 in Nature Nanotechnology titled ingle-Molecule Diodes with High On-Off Ratios through Environmental Controlreports the first ever attempt for the development of single
-molecule diode that perform 50 times better than all the previous designs. A team of Columbia Engineering researchers under the guidance of an Indian-American associate professor of applied physics at Columbia Engineering, Latha Venkataraman have designed this single-molecule electronic device
which would revolutionize nanoscale devices. Venkataraman proudly stated that the new device represents the ultimate in functional miniaturisation that can be achieved for an electronic device.
He added that constructing a device where the active elements are only a single molecule has long been a tantalizing dream in nanoscience.
in order to develop a single-molecule diode. Brian Capozzi, Phd student working with Venkataraman and lead author of the paper stated that
while such asymmetric molecules do indeed display some diode-like properties, they are not effective as they typically suffered from very low current flow in both nand ffdirections
and used gold metal electrodes of different sizes to contact the molecule. This simple new technique can be applied easily to all nanoscale devices of all types,
including those that are made with graphene electrodes a
#Nivolumab helps fight Cancerous Lung Tumors A trial has suggested that a therapy for lung cancer has the ability to double the life expectancy in patients.
The artificial limb is fitted with sensors which enable transmission of feelings to the brain. This prosthetic limb, invented by Professor Hubert Egger from the University of Linz in Austria is fitted with six sensors
which stimulate the nerve endings in a patient's stump which are attached further to healthy tissue in the patient's thigh.
Egger explained that these sensors tell the brain that there is a foot and the wearer has the impression that it rolls off the ground when he walks.
conventional MRI, the radiotracer carbon-13 (C-13) pyruvate and hyperpolarized MRI at a resolution of 2. 5 mm, Medipix positron detector, luminescence sensor,
#Ultrafast Lasers Create 3-D Crystal Waveguides in Glass Ultrafast Lasers Create 3-D Crystal Waveguides in Glassbethlehem, Pa.
June 9, 2015 Femtosecond laser pulses can create complex single-crystal waveguides inside glass a discovery that could enable photonic integrated circuits (PICS) that are smaller, cheaper, more energy-efficient and more reliable than current networks that use
discrete optoelectronic components. Using lanthanum borogermanate (Labgeo5), researchers at Lehigh University have reported creating waveguides with a loss of 2. 64 db/cm at 1530 nm."
"Other groups have made crystal in glass but were not able to demonstrate quality, "said professor Himanshu Jain."
For more information, visit www1. lehigh. edu. Harsh Environments No Match for New Fiber Sensor Nanofiber Fabrication Boosts Quantum computing Sulfur Copolymers Boost IR Optics
Bandwidth Demands Drive Fiber optics Advance s
#Graphene Filaments Provide Tunable On-Chip Light source Graphene Filaments Provide Tunable On-Chip Light Sourcenew YORK, June 15,
2015 Incandescent bulbs may be a thing of the past, but the principle of light-emitting filaments may have a new use in displays and optical communications.
Researchers from the U s. and South korea collaborated to develop an on-chip visible light source using filaments made of graphene.
They attached small strips of graphene to metal electrodes, suspended the strips above a silicon substrate,
"This new type of broadband light emitter can be integrated into chips and will pave the way towards the realization of atomically thin, flexible and transparent displays,
and graphene-based on-chip optical communications.""Schematic illustration of electrically biased suspended graphene and light emission from the center of the suspended graphene.
The ability to create light in small structures on the surface of a microchip is a crucial step towards the development of fully integrated photonic circuits.
but have not yet been able to put the oldest, simplest artificial light source the incandescent light bulb onto a chip.
making such structures impractical and leading to damage of the surrounding chip. The ability of graphene to achieve such high temperatures without melting the substrate
or the metal electrodes is due to another interesting property: as it heats up, graphene becomes a much poorer conductor of heat.
U s. funding came from the National Science Foundation, Air force Office of Scientific research, Office of Naval Research, Army Research Office and Qualcomm Innovation Fellowship.
Korean funding came from the National Research Foundation, Center for Advanced Soft Electronics through the Global Frontier Research Program, Priority Research center Program, Center for Topological Matters at the Pohang
For more information, visit engineering. columbia. edu. Corning to Acquire Fiber optics Business from Samsung Camera Powered by the Light It Captures Microscope Takes 3-D Images From Inside Moving Subjects Technique
consequently, are of interest for use as organic LEDS (OLEDS). Within graphene, benzene rings are fused to form a honeycomb structure.
Sections of this structure, referred to as nanographenes or polycyclic aromatic hydrocarbons (PAHS), play an integral role in organic electronics.
mechanically flexible electronic components adapted to individual applications, such as LEDS. Courtesy of Goethe University Frankfurt. The boron-containing nanographenes have an impact on two key properties of an OLED luminophore
the researchers said: the color of fluorescence shifts into the highly desirable, blue spectral range and the capacity to transport electrons is improved substantially.
Hertz and Wagner anticipate that such materials like the graphene flakes they developed will be particularly suitable for use in portable electronic devices,
#Optical Glucose Sensors on Commercial Path Optical Glucose Sensors on Commercial Pathleeds, England, July 17, 2015 A University of Leeds spin out company is seeking to commercialize an optical glucose sensor that could make finger
The sensor uses a nanoengineered silica chip with an active layer of ions that fluoresce
Japanese electronics company Ricoh says the rubber generates electricity while it stretches. When crystalline materials such as quartz and ceramics are stretched or compressed,
which could potentially be used to power sensors, is lighter and less fragile than other piezoelectrics
Beyond flexible sensors, the company is interested in using the technology to ontribute to the age of the Internet of things,
a concept that typically refers to the connection of a wide array of everyday devices--including thermostats, light bulbs,
with algorithms and sensors that automatically adjust the angle of the foot during different points in its wearer's stride.
a pair of sensors embedded in his muscle tissue connect the neural dots, and wirelessly transmit that signal to the Proprio Foot.
Ossur unveiled its implanted myoelectric sensor (IMES) technology today at an event in Copenhagen, and is now preparing large-scale clinical trials,
or implanting electrodes in a subject's brain. These devices look like the real thing in brief, sometimes compelling video clips.
Ossur's sensor-linked limbs meanwhile, have stood up to the abuses of everyday activity in Iceland and England (where Olafsson now lives.
And the surgery to implant the sensors was minimal. According to Thorvaldur Ingvarsson, an orthopedic surgeon and head of R&d at Ossur, the procedure took 15 minutes,
and each sensor required a single-centimeter-long incision. The tiny sensors (3 millimeters-by-80 millimeters) are powered by magnetic coils embedded in the socket--the cushioned,
hollow component that fits over a user's residual limb, and connects to the prosthesis.
there's no need to replace the sensors (unless they fail for other reasons). e believe this is a lifelong sensor,
says Ingvarsson. Another thing that differentiates this mind-controlled prosthesis is its simplicity. The sensors,
which were provided to Ossur by the Alfred Mann Foundation, don't have to be attached to specific nerves.
One major advantage of sensor-control, says Olafsson, is the way it redistributes your weight.
sensor-connected limbs could halt or reverse their deterioration. It's a reminder that despite the urge among the able-bodied to obsess over cybernetic enhancements,
#Computer Chips Can Now Be made From Wood Not quite what we had in mindthe woods are lovely, dark, deep,
researchers announced the construction of computer chips made from wood. But don't expect to see hipsters advertising hand-carved artisan computer chips.
The wood product that the scientists are using is called cellulose nanofibril, or CNF. It is thin, flexible,
The researchers were able to use CNF as a substrate or base layer for electronic circuits in lab tests,
unlike a lot of the petroleum-based alternatives that manufacturers use to build the bases of modern computer chips.
"The majority of material in a chip is support. We only use less than a couple of micrometers for everything else,
"Now the chips are so safe you can put them in the forest and fungus will degrade it.
"It will be years before computers containing wood-based computer chips hit store shelves, but computers as fertilizer isn't a totally crazy idea.
Society tends to treat electronics as disposable commodities. But unlike a glass bottle that gets recycled or food that hits a compost heap,
but there's still a ton of electronics (well, a few million tons) headed for the landfill.
By changing the materials that we build electronics with, Ma, and others like him (another team is building dissolvable circuits) are trying to deal with the e waste problem at the start--long before your phone gets stepped on or your computer crashes.
"Potential applications range from sensors integrated with packaging, to textiles that convert body heat to electricity,
can help the blind navigate by processing visual information and communicating it to the user through electrodes on his tongue.
and tongue-stimulating electrodes connected to a handheld battery-operated device. When cameras in the glasses pick up visual stimuli, software converts the information to electrical pulses sent as vibrations to be felt on the user tongue.
Until now, flexible displays could only obtain a limited color palette and took up to 10 seconds to alter.
Not only could it be used to create e readers that can be read like a magazine he says,
Wireless data transfer using light has already been demonstrated at blistering gigabit speeds using white LED LIGHTS.
Lasers are already an improvement over LEDS, because Li-Fi works by reading slight modulations of light,
and lasers can be tuned far more finely than LEDS. White light allows those signals to be transmitted over multiple areas of the color spectrum
For the study, Edgerton and his team used a technique called transcutaneous spinal cord stimulation where they placed electrodes on a patient lower back and sent a unique pattern of electrical currents through the electrodes.
#Stretchy Sensors Remind You to Take a Break from the Sun Researchers at RMIT University in Australia have developed stretchy sensors that detect harmful UV radiation and toxic gases such as hydrogen and nitrogen dioxide.
The transparent and flexible sensors can either be worn as patches on the skin like a nicotine patch
It follows the university Micronano Research Facility breakthrough in bendable electronics, which has helped paved the way for flexible mobile phones.
These stretchable and wearable sensors could be used for an everyday application, helping to remind people
The unbreakable electronic sensors are cheap and durable to manufacture, factors which bode well for their introduction into everyday life.
In the future, these stretchy sensors could link to electronic devices, enabling them to continuously monitor UV levels
The sensors can also be placed on work and safety gear in order to detect dangerous gases such as hydrogen,
An air-quality sensor embedded in the hood uses location-based data to show the concentration of dangerous gases.
It uses remote control technology to function without cables, transmitters or external recorders and it even waterproof.
No more fussing with the exact positioning of the microphone. Instamic can be attached or clipped to nearly any surface,
The Grillo Active contains an accelerometer, Wi-fi and GPS. But how will it work? The efficacy of a system relies on sensor placement.
In wide areas, the more sensors installed, generally, the better. Expert seismologists will place the sensors for better chances of coming across the early stages of an earthquake.
When activity is detected, algorithms that take into account nearby faults and other factors to broadcast a warning of affected areas, estimated intensities and apparent epicenter.
All of which are processed on the cloud and relayed back and forth through the Internet, removing the need for a separate infrastructure.
The Grillo dashboard neatly puts together sensor data on a map and recorded activity is easily accessible.
Doubts toward sensitivity thresholds in accelerometers (compared to calibrated scientific instruments) and Wi-fi speed and reliability beg to be asked.
began by creating independent receivers that sounds alerts according to the Mexican government warning systems. Founder Andy Meira is an architect who has worked with the Clinton Foundation
The bikini bottom has a section where a UV sensor clips on to the fabric.
the sensor alerts the partner smartphone when the bikini wearer needs some help applying sunscreen.
The lightweight sensor is removable, waterproof and measures less than two centimeters. The bikini labels are printed on the inside of the suit
In addition to the bikini, Spinali has created also a connected beach towel that includes a UV sensor. The towel measures 200 x 150 cm
For more promotional videos and demonstrations of how the sensor is attached to the suit, check out the Spinali Youtube channel.
They encourage anybody interested in this next step in home electronics to sign up for their newsletter and receive updates on the project progress e
NTT Docomo summer lineup of mobile phones featured tech giants like Sony and Samsung. But what stood out from the sea of gadgets was the Arrow NX F-04g that uses iris recognition to make payments when you shop.
back in 2010, NTT Docomo introduced a prototype that uses the eye sensor system to help users navigate their phones with eye movement.
According to Telegraph UK, the earphones are made with special electrodes that will ick up the moment of the eyeand this process is called electrooculogram.
#Amputees control bionic legs with their thoughts Ossur implanted tiny sensors in the residual muscle tissue of two amputees that they say trigger movement in the prosthesis via a receiver.
when Olafsson used a different prosthesis that did not have the receiver. He said it was frustrating to be unable to control the foot once more.
The Implanted Myoelectric Sensors (IMES) measure 5 millimeters (mm) long and 3mm wide and were provided by the United states-based Alfred Mann Foundation,
and Ossur's director of research and development, Thorvaldur Ingvarsson implanted the sensors in the two patients involved in the trial himself
We put sensors into the muscles, and the muscles would pick up the signals, and the signals move their way into the prosthetics,
However, as our technology move on-you have sensors for muscles, you're able to replace function by the new mind-controlled prosthetics-the next step might be to get sensing from the environment
The company says the device is the first to use an implanted sensor inside the patient's body,
That strengthened deterrence comes in the wake of high-profile attacks against corporations including the hacking of Sony Pictures Entertainment last year,
#Wearable device provides continuous fetal monitoring The Pregsense monitor has woven sensors into an elastic harness to provide data around the clock on the status of the fetus and the mother's health in the later stages of pregnancy.
The sensors use a patented algorithm to filter the signals it picks up into two heartbeat recordings.
Its developers say the passive sensors avoid the potential harm to tissue posed by ultrasonic devices
"The sophistication of the technology and the sophistication of the sensors that we had designed for that is really making
so it kind of works kind of like a muscle sensor in that it picks up small electric discharges and turns that into something you can actually read within software,
accelerometers to track your wrist and elbow, and then an IMU sensor as well to track your bicep rotation as well as your shoulder movement,
and that gets all translated wirelessly to the robotic arm where it will copy what you do said,
Once the target nerve has been reached the sensors also let the surgeon know, and the implant can then be deployed down the device.
#Scientists control mouse brain by remote control The tiny implant, smaller than the width of a human hair, let the scientists determine the path a mouse walks using a remote control to inject drugs
and shine lights on neurons inside the brain. Neuroscientists have until now been limited to injecting drugs through larger tubes
to stimulate the mice's brain cells with miniature LEDS. The test subjects were made to stay on one side of a cage by remotely making the implant shine pulses of light on the specific cells.
The mice were about three feet away from the remote antenna during the experiments. The research, published recently in scientific journal Cell,
#Scientists Create Liquid Metal Antenna By placing an electrical potential across the interface between liquid eutectic gallium and indium and an electrolyte,
or to contract by applying a negative voltage. sing a liquid metal that can change its shape allows us to modify antenna properties more dramatically than is possible with a fixed conductor,
The scientists created the tunable antenna by using electrochemical reactions to shorten and elongate a filament of liquid metal and change the antenna operating frequency.
Applying a small positive voltage causes the metal to flow into a capillary, while applying a small negative voltage makes the metal withdraw from the capillary. he positive voltage electrochemically deposits an oxide on the surface of the metal that lowers the surface tension,
Although antenna properties can be reconfigured to some extent by using solid conductors with electronic switches
which the antenna operating frequency can be tuned. or eutectic gallium-indium monopoles with lengths between 75m and 4m, the measured resonance frequency tunes from 0. 66 GHZ to 3. 4hz for a tuning
which is beyond the ratio obtained by switch or varactor-based antennas. urthermore, the measured total efficiency ranges from 41%to 70,
%which, while lower than a conventional monopole, presents a tradeoff between efficiency and versatility that is evident in most tunable systems. ur antenna prototype using liquid metal can tune over a range of at least two times greater than systems using electronic switches,
which the antenna and RF (reconfigurable radiofrequency) front-end must operate. his combination will create a real antenna design challenge for mobile systems
because antenna size and operating bandwidth tend to be conflicting tradeoffs. e
#Scientists Create Single-Molecule Diode The idea of creating a single-molecule diode a circuit element that directs current flow was suggested first more than 40 years ago, in 1974, by researchers Arieh Aviram of IBM Thomas
J. Watson Research center and Mark Ratner of New york University. Scientists have since been exploring the charge-transport properties of molecules.
They have shown that single-molecules attached to metal electrodes can be made to act as a variety of circuit elements,
including resistors, switches, transistors, and, indeed, diodes. They have learned that it is possible to see quantum mechanical effects
such as interference, manifest in the conductance properties of molecular junctions. onstructing a device where the active elements are only a single molecule has long been a tantalizing dream in nanoscience,
Dr Venkataraman said. ur new approach created a single-molecule diode that has a high rectification and a high ncurrent.
Since a diode acts as an electricity valve, its structure needs to be asymmetric so that electricity flowing in one direction experiences a different environment than electricity flowing in the other direction.
In order to develop a single-molecule diode, researchers have designed simply molecules that have asymmetric structures. hile such asymmetric molecules do indeed display some diode-like properties,
they are said not effective team member Brian Capozzi, a Phd student at Columbia University. In order to overcome the issues associated with asymmetric molecular design,
1-dioxide) with an ionic solution and used gold metal electrodes of different sizes to contact the molecule.
including those that are made with graphene electrodes
#Gold Nano-Spirals Could Protect Against Identity Theft Most other investigators who have studied the remarkable properties of microscopic spirals have done so by arranging discrete nanoparticles in a spiral pattern:
A variety of screen-printed sensors"taste"electrochemical compounds in the beer to predict the brews'color index and alcoholic strength 76 percent and 86 percent of the time.
Electronic sensors could share a supporting role by continuing to check the beer while the brewmasters are sleeping."
sensors nestled in the taste buds react to molecules in the food and send the appropriate signals to the brain:
All receptors respond every time we take a bite we don't have specific sensors for different tastes."
and sensors so your brain learns that this taste is from a banana, this taste is explained from coffee
The screen-printed electrodes, made by the company Dropsens, have an array of sensors that send signals to software the"brain"that analyzes the response patterns.
The device is portable about the size of two cigarette packs, said Méndez. There are four electrodes,
each made from a different material. These detect polyphenols, antioxidants produced by the grains and ingredients that ferment into beer, such as barley and hops.
Many existing tongues using an array of sensors only get one data point for each sensor,
"But we have curves for each sensor.""The nonspecific electrodes are responsible for their wealth of data.
The phenols and electrodes send electrochemical signals to the computer as they interact. The researchers immerse the electrodes in beer
and track the electrochemical signals as they turn up the voltage, said Méndez. Each sensor makes distinct electrical patterns
because each is made from a different material. After analyzing the data with two pattern-recognition models,
the electronic tongue was able to place the commercial beer sample into the correct lager category with 100 percent accuracy.
"Their sensors generate one vector of, say, 100 numbers, "said del Valle. He published a paper last year describing his lab's electronic tongue that used an array of specific electrodes,
which correctly identified between lager styles 82 percent of the time.""We use a larger number of sensors related to ions
but got poorer information. These researchers use less sensors, but is richer in information they generate,
"said del Valle. He was involved not in the study. The next steps for Méndez and her team will be modifying the commercial screen-printed electrodes with nanoparticles to make the sensors respond more clearly,
she said.""These systems are complicated and though they are improving little by little they are still very far from human senses,
suggest that the excellent properties of the solar cell result from an additional mechanism the formation of indirect band gaps that plays an important role in photovoltaics.
these optical fibres still have to work with existing electronic computer chips, which means once information is delivered to your computer or router in photon form,
For this reason, scientists around the world have been working towards taking the functionality of an electronic chip
they were still able to perform their most important function-splitting guided light beams into the chip two components.
which is what needs to happen in order for them to rival existing electronic chips. And all of this isn so far off."
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011