and made it a light sensor, says Catherine Drennan, a professor of chemistry and biology at MIT.
which includes a small array of electrodes implanted into the brain, has performed well in laboratory testing in animals
With the permission of patients who had implanted electrodes in their hippocampi to treat chronic seizures,
had implanted electrodes into the area of the brain that processes touch information from the hand.
The US space agency is studying how these scenarios play out On earth in a program called Hawaii Space exploration Analog
New york-based firm Dogstar has created a device it describes as the orld first dog emotion sensor Known as Tailtalk,
With this in mind, Dogstar created a 3-axis accelerometer and gyroscope to help monitor
which sent signals via bluetooth to electrodes attached to their legsmovie Camera. These stimulated the students'muscles,
Pfeiffer says the electrode's current causes a tingling sensation that diminishes the more someone uses the system.
#Clumps of gold nanoparticles can evolve to carry out computing Move over, microchip. A random assembly of gold nanoparticles can perform calculations normally reserved for neatly arranged patterns of silicon.
but this strategy limits how efficient they can be. he best microprocessors you can buy in a store now can do 1011 operations per second
Now, van der Wiel and his colleagues have enabled a clump of gold grains to handle bits of information in the same way that conventional microprocessors do.
and surrounded them with eight electrodes. The computations happened when they applied just the right voltages to the cluster at six specific locations.
Then the gold effectively forms a network of transistors that lacks the strict order of connections in a regular microchip,
the algorithm found the voltages that transformed the system into any one of the six ogic gatesthat are the building blocks of conventional computer chips.
or more electrodes. he electrodes are probably more important, so that you can have more inputs and outputs. o
#Bionic pancreas automatically controls diabeticsblood sugar SENSOR, pump action! An app linked to a glucose sensor
and insulin pump can make life a lot easier for people with type 1 diabetes. he sense of potential freedom is amazing,
A glucose sensor and insulin pump, both attached to the abdomen, are used by some people with type 1 diabetes to manage their condition,
Compared with a sensor and pump without an algorithm, children using the bionic device spent half as much time with seriously low sugar levels,
#Clump of gold nanoparticles can evolve to carry out computing MOVE OVER, microchip. A random assembly of gold nanoparticles can perform calculations normally reserved for neatly arranged patterns of silicon.
but this limits their efficiency. he best microprocessors you can buy in a store now can do 1011 operations per second,
and placed eight electrodes around them. When they applied just the right voltages to the cluster at six specific locations,
the gold behaved like a network of transistors but without the strict sequence of connections in a regular microchip.
The team was able to find voltages to transform the system into any one of the six ogic gatesthat are the building blocks of computer chips.
We can use them to make more efficient displays for mobile devices, sensors with greater resolution,
#Single molecule detector reveals biomolecule secrets Supersensitive detection systems are an important element of today's life sciences.
To determine distributions of lengths of strands precisely the researchers developed an Open Micro-Electrophoresis Chip (OMEC)
This chip allows the separation of molecules for analysis at the single molecule level m
Netherlands) have managed now to equip low-loss light chips with new ctive functionalities such as generating,
The MESA+chip can create a very wide light spectrum spanning blue to infrared (470 to 2130nm.
By doing so the developers say they have made light chip with the largest frequency range ever The scientists explain the advantages of their development thus:
The MESA+researchers have for a long time been looking for methods to generate the broadest possible light spectrum on a chip.
The Twente scientists have managed now successfully to create a light chip with what they are calling he broadest light spectrum ever The chip achieves a bandwidth of 495thz,
which is more than 50%wider than the previous record. According to research leader Prof. Dr Klaus Boller this broad spectrum demonstrates the potential of the technology.
These materials have the lowest optic losses on a chip and are, therefore, already extremely relevant.
What's more, the fabrication matches the standard processes in the chip industry, making it suitable for mass production.
the researchers shone laser light into a waveguide, made of silicon nitride, a glass-like material, embedded in regular glass (silicon dioxide).
The shape and construction of the waveguide ensures that the laser light generates new wavelengths as it passes through;
Boller added, ne of the key challenges of the research was ensuring that the silicon nitride did not crack during the manufacture of the waveguides.
The spectrum created by this chip is not constant, but comprises about 12 million peaks that lie at exactly the same distance from each other.
e have shown ultra-broadband on-chip supercontinuum generation in CMOS-compatible Si3n4 waveguides. When pumped at a center wavelength of 1064nm with pulses of 115 fs duration,
and comprises a spectral bandwidth of more than 495 THZ. his is, to our knowledge, the widest supercontinuum ever generated on a chip.
The visible to infrared coverage, extending throughout most of the transparency range of Si3n4 and Sio2, appears to be highly attractive for applications such as for self-referencing optical frequency combs on a chip or widely tunable light sources for label-free microscopy and imaging in life sciences. m
#German-UK research yields permanent optical data storage chip A partnership between scientists at Karlsruhe Institute of technology,
and Oxford and Exeter, both UK, has developed the first all-optical permanent on-chip memory.
The KIT-led team have developed now the first all-optical, nonvolatile on-chip memory. Professor Wolfram Pernice explained,
The scientists conclude that permanent all-optical on-chip memories could onsiderably increase future performance of computers while reducing their energy consumption.
Our on-chip memory cells feature single-shot readout and switching energies as low as 13. 4pj at speeds approaching 1ghz.
or manipulated but this metamaterial permits us to manipulate light from one chip to another, to squeeze,
A zero-index material that fits on a chip could have exciting applications, especially in the world of quantum computing.
"Integrated photonic circuits are hampered by weak and inefficient optical energy confinement in standard silicon waveguides.
This zero-index metamaterial offers a solution for the confinement of electromagnetic energy in different waveguide configurations
or waveguide to emit photons which are always in phase with one another, "said Philip Munoz,
of those used in volume semiconductor production. In a paper published in the latest issue of Nature Photonics the IMEC
the team led by Ghent Dries Van Thourhout suggests that electrical injection-a necessity for true photonic integration-could be achieved readily with the incorporation of a suitable blend of narrow-bandgap semiconductor material in the future.
monolithic approach Previous efforts to combine the efficiency of compound semiconductor lasing structures with the scalability of a silicon substrate have focused largely on flip-chipping of prefabricated diodes,
The longstanding challenge has been to find a way to deposit the semiconductor material combination needed for lasing at the 1300 nm
Learning from recent attempts to combine III-V and silicon materials in Finfet electronic devices, the Belgian team grew their laser structures directly onto a standard silicon wafer.
tarting with millimeters-long Inp waveguides of high optical quality grown selectively onto a silicon substrate
including the definition of gratings on top of these waveguides, we fabricated DFB lasers exhibiting robust single-mode operation.
and compound semiconductors is to grow a so-called buffer layer on top of the silicon. But for the particularly large mismatch of Inp and silicon,
the IMEC team was able to produce high-quality Inp waveguides on top of a buffer layer just 20 nm thick.
Although that is not the ideal lasing wavelength for silicon waveguides, and electrical pumping must also be achieved for real applications,
That approach would allow deposition of the compound semiconductor materials needed to red-shift the lasing wavelength into the telecoms realm at 1300 nm.
it is even possible to envisage butt-coupling the lasers to optical waveguides defined at the same level. n addition,
on-chip lasers that could be produced using the approach, concluding that: n particular, for on-chip optical interconnects, the demonstrated monolithic laser array,
together with the WDM technology, may finally pave the way to terascale computing. Photonic integrated circuits (PICS) based on the technology could dramatically change the architecture of fiber-optic transceivers used in data center optical interconnects, by pushing down the cost of chip-level data transfer between logic and memory devices.
That would in turn enable a radical scaling of a data center capacity, while simultaneously reducing increasingly colossal power demands with higher-efficiency data transfer.
and with the potential collaboration of key chip-making partners like Intel, Sony, Samsung and TSMC.
IMEC says that efforts are focused now on growing the more complex semiconductor layer stacks needed for electrical injection of the lasers and emission in the 1300 nm wavelength range d
Researchers say the lab-on-chip device is a step toward creating quantum computers that could help design new drugs,
Developed by a team from the University of Bristol and Nippon Telegraph and Telephone Corp. NTT) in Japan, the fully reprogrammable chip brings together a multitude of existing quantum experiments
The system consists of a cascade of 15 Mach-Zehnder interferometers with 30 thermo-optic phase shifters and 12 single-photon detectors.
"A whole field of research has essentially been put onto a single optical chip that is easily controlled,
"The team demonstrated the chip's capabilities by programming it to rapidly perform a number of different experiments, each
it took seconds to reprogram the chip, and milliseconds for the chip to switch to the new experiment,"said Jacques Carolan, a doctoral student at Bristol."
"We carried out a year's worth of experiments in a matter of hours. What we're really excited about is using these chips to discover new science that we haven't even thought of yet
#Color-Changing Substance Detects Biological, Mechanical Problems CAMBRIDGE, Mass. Sept. 9, 2015 Responsive to a range of stimuli, a color-changing metallic substance could help detect problems as varied as mechanical strain and pollution.
The patented technology is already generating interest from the electronics, automotive and pharmaceutical sectors, where counterfeiting is a serious issue,
#Fiber Sensors Improve Robot Touch Sensitivity Fiber optic sensors could give robots the sensitivity needed to handle delicate objects and work safely alongside humans.
A three-fingered, soft robotic hand features 14 embedded fiber optic strain sensors that enable the hand to determine where its fingertips are in contact
you need robotic hands that have more sensors than is said typical today Yong-Lae Park,
but even a state-of-the-art humanoid such as NASA's Robonaut has only 42 sensors in its hand and wrist,
It incorporates commercially available fiber Bragg grating sensors, which detect strain by measuring shifts in the wavelength of light propagating through optical fiber.
Conventional pressure or force sensors are problematic because their wiring can be complicated, prone to breaking and susceptible to electromagnetic interference.
and one strand can contain several sensors. All of the sensors in each of the fingers of the robotic hand are connected with four fibers,
although, theoretically, a single fiber could do the job, Park said. Despite their advantages, conventional fiber optic sensors don't stretch much.
Glass fibers stretch hardly at all, and even polymer fibers stretch typically only 20 to 25 percent,
Future versions of the hand could be made even more sensitive with artificial skin that incorporates stretchable fiber sensors based on commercially available silicone rubber.
these soft waveguides are lined with reflective gold; as the silicone is stretched, cracks develop in the reflective layer,
are capable of extremely precise manipulation with only limited sensors. But as roboticists work to develop soft robots that can interact routinely and safely with humans,
The electrodes sent electrical pulses to the rats neurons when their heads pointed north and south.
And Won't Catch on Fire Almost all of the electronic devices that we carry around with us all day now rely on one key,
but you can bet that electronics manufacturers, makers of electric cars, and power companies all have their eyes on the development of this technology.
plus different antenna systems coming out of his backpack. So we talked about it, and if he had a heads-up display,
Pete Jameson, chief operating officer at ODG, points out that the company R-6 glasses, commercially available for just under $5, 000, have an ambient light sensor and swappable photochromic shields for handling glare."
and sensors like accelerometers have all found their way from our pockets to the skies.
Accelerometers are neat tools, and in drones they detect the force of gravity, letting the craft know which way is down.
Tiny rescue robots in the future may not have room for an accelerometer, even a small one, but theyl almost certainly require a camera.
The concept uses a sensor to detect an explosion in water or air--say, an IED on the side of the road--then estimates the time and location of the explosion.
Next, the signal from the sensor triggers a laser (or a blast of electricity or microwave energy) that heats up a section of air or water
Nanotechnology could be used to build the embedded control system, sensors and computers for any liquid metal robot.
#This Sleeve Will Help Save PITCHERS'Arms Motus mthrow Brian Klutch Sensors: Gyroscopes, accelerometers Weight:
14 grams Battery life: 8 hours Price: $170 Problem: Hurtling fastball, after curveball, after slider puts incredible strain on a pitcher arm,
Players wear a 1. 3-inch device with three gyroscopes and three accelerometers just above the elbow inside a compression sleeve.
#Putting Sensors In Bridges And Tunnels Could Make Their Walls Talk Trying to get a building to tell you how it feeling is,
by creating various sensors to fit inside buildings, tunnels, and bridges. With the feedback collected from these sensors,
inspectors will have a better understanding of how a city's infrastructure is holding up GENESI is an awkward acronym for reen sensonr NETWORKS for Structural monitoring.
GENESI puts sensors into a city's various structures to let them"communicate"their status. These sensors include ibrating strain gauges, displacement meters, pressure sensors, temperature sensors,
and soil moisture sensors.""To conserve power, they have energy harvesting capabilities, and engineers can periodically wake them up to get fresh readings from the sensors and check for any changes.
One of GENESI two pilot projects is a testbed in the tunnels of Rome underground rail system,
where wire sensors that pick up strain from vibration were placed inside certain concrete segments. Data loggers record the data,
transmitting the information to a wireless setup and relay system, which then sends it out via cell networks to a remote server.
but powering sensors--even really efficient sensors--requires some form of electric charging or battery replacement.
But each GENESI node and sensor includes a miniature wind turbine that harvests energy from passing trains.
For all other sensors, whether tucked away in tunnel walls or nestled in dark unlit crevices under bridges,
This isn the first attempt to put streamlined insect-inspired sensors into drones but it the first time it been done for such tiny drones (others have tried to hook them up with bulky digital cameras.
A team of South korean researchers has developed a simple sensor based on the human nose to sniff out the smelly molecules.
The sensor is coated with special proteins called olfactory receptors that bind to the molecules when they are present.
In this particular sensor the researchers found human olfactory receptors that react to GSM and MIB,
Counterfeit electronics are a problem, and counterfeit medication can be downright dangerous, containing the wrong dose or no active ingredient at all.
In some experiments, patients have been able to move prosthetic limbs just by thinking about it--a chip implanted in the brain translates the electricity in the brain motor cortex into instructions for the prosthetic to move.
The prosthetic hand contains torque sensors that can detect minute changes in pressure. Once the brain and arm were hooked up
DARPA engineers and scientists at Johns hopkins university Applied Physics laboratory first inserted electrodes into the patient motor cortex.
The hand contains sensors that can detect when pressure is being applied to its fingers, and converts this pressure into electrical signals that the brain implant reads.
and volunteered to get electrode implants saw improvement in their scores on memory tests, DARPA said.
They received small electrode arrays placed in brain regions involved in the formation of declarative memory, according to DARPA.
Now a team led by researchers from the University of Illinois at Urbana-Champaign has developed a flexible electronic sensor that can measure blood flow on top of the skin or
The devices are made from a thin array of metallic wires that are oriented around a central sensor
as do other flexible electronics from the same lab. Those devices, which have been tested in the lab,
The researchers have not yet tested the sensors abilities when implanted below the skin as the devices would need to be totally wireless in order for that to make probable sense.
#Open-source Soil Sensors: Vinduino As California fourth straight year of drought forces farmers to cut back on water use,
one California vineyard-owner has taken a DIY approach to creating a sensor-driven water conservation system.
The project so far includes instructions for making your own soil moisture sensors (based on the gypsum mineral found in plaster of paris;
building a handheld Arduino-based device for taking sensor readings; and creating Arduino-based irrigation valves,
water pressure sensors and data loggers for controlling and monitoring the vineyard irrigation system. In prototype stage is networked a,
solar-powered sensor reading station that can report Vinduino sensor data via the Thingspeak platform.
Van der Lee future plans include designing a network hub for collecting readings from multiple sensor stations,
Van der Lee says that one of his primary motivations for building Vinduino was to innovate on commercial soil monitoring systems that typically rely on readings from a single sensor.
Vinduino uses three sensors at different depths to get a better handle on the way water moves through the soil at each measurement point.
together with low cost gypsum soil moisture sensors, provides all that
#Plug Your Toaster Into the Sun Sunport lets you use solar power at homeithout the panels.
and Phone for Outlet Space is No more Samsung has released a monitor with a charging station at the base where users can wirelessly charge their phones.
those places are often the worst culprits for able tanglebecause of all the electronics already there.
Samsung TV isn the only, or even the first, entry in the evices that do their job and charge your phonecategory.
check in at the Samsung blog. Samsung s
#This Museum Offers Special Glasses to Colorblind Visitors The museum experience relies on visuals. You step into the space expecting to see something new to lose yourself in stunning compositions anderhaps most importantlyivid colors.
But not all museum visitors can perceive color the same way. Visitors to the Museum of Contemporary Art Chicago can now pick up a pair of Enchroma glasses
while an accelerometer detects its movements. The pen recorded contents can be transferred to a connected smartphone app using Bluetooth.
and the bpay chip to make contactless payments Wearers can buy anything £30 and under in the U k. Wearers can add funds to their digital wallet using a mobile app or through an online portal.
while the LED LIGHTS make sure there is enough unlightall-year round. Their website reads: Farmedhere produce is grown indoors in urban facilities, away from the bugs, diseases, pesticides,
Germanium is a semiconductor, and this method provides a straightforward way to make semiconducting nanoscale circuits from graphene, a form of carbon only one atom thick.
"Some researchers have wanted to make transistors out of carbon nanotubes, but the problem is that they grow in all sorts of directions,
This high mobility makes the material an ideal candidate for faster, more energy-efficient electronics. However, the semiconductor industry wants to make circuits start
and stop electrons at will via bandgaps, as they do in computer chips. As a semimetal, graphene naturally has no bandgaps,
making it a challenge for widespread industry adoption. Until now. To confirm these findings, UW researchers went to Argonne staff scientists Brian Kiraly and Nathan Guisinger at the Center for Nanoscale Materials,
a DOE Office of Science User Facility located at Argonne.""We have some very unique capabilities here at the Center for Nanoscale Materials,
"said Guisinger.""Not only are designed our facilities to work with all different sorts of materials from metals to oxides,
"For use in electronic devices, the semiconductor industry is interested primarily in three faces of a germanium crystal.
and image sensor, cost less than $3, 000 to construct. At production levels upwards of 10,000 units,
The use of low cost components such as LEDS reflectors, and USB detectors, combined with the all-plastic housing and lenses will allow for future versions of the prototype to be mass-produced.
Source: The Optical Societ a
#Shortening Organic solar cell Production One of the building blocks of the solar panel, solar cells are responsible for converting solar energy into electricity.
#A otdevelopment for ultra-cold magnetic sensors Magnetoencephalography, or MEG, is a noninvasive technique for investigating human brain activity for surgical planning or research,
The most sensitive commercial magnetic sensors require a single SQUID kept at 4. 2 Kn incredibly chilly temperature that is usually maintained with expensive and difficult to handle liquid helium.
"We believe there should be an immediate interest in the entire SQUID community for the potential replacement of their existing superconducting magnetic sensors based on single SQUIDS operating at 4. 2 K with our SQUID arrays operating at 77 K,
they provide a magnetic sensor that is very cost effective, considering that operation of SQUIDS at 4. 2k requires the use of liquid helium-4,
but rarely on a surface. his way we can build electrodes out of it, he said. t should be easy to integrate into devices.
Electron microscope images showed cobalt atoms widely dispersed throughout the samples. They tested nitrogen-doped graphene on its own and found it lacked the ability to kick the catalytic process into gear.
including computer chips and other optoelectronic components.""Our results demonstrate relatively fast modulation from fundamentally slow phosphorescent light emitters,
Phosphors are common light emitters used in light bulbs, LEDS and elsewhere. They are extremely efficient
One example could be optical communications networks on computer chips. Prototype on-chip networks have used semiconductor lasers as light emitters.
They can modulate very quickly, but they have downsides. Semiconductors can't be grown directly on a silicon chip,
so fabrication can be difficult. Using indirect means of modulation--interferometers, for example--makes for bulky systems that take up a lot of real estate on a chip.
What's more, semiconductor lasers are not particularly efficient. They produce a lot of heat along with light
which is a problem on a silicon chip. Erbium and other phosphors, on the other hand, can be deposited directly on silicon, making fabrication easier.
There's still more work to be done to get such a system up to a speed that would be useful on a chip,
and industrial researchers working on optoelectronics and nanophotonics, "the researchers write e
#Experimental treatment regimen effective against HIV PROTEASE inhibitors are a class of antiviral drugs that are used commonly to treat HIV, the virus that causes AIDS.
Riverside, has found a new and exciting way to elucidate the properties of novel 2-D semiconductors.
Linbo3 is used in many electronic devices dealing with high-frequency signals such as cell phones or radar installations.
We also fabricated transistor structures onto the Mos2 films and proved that indeed our analysis is correct.
and some are familiar with the different magnetic phases that store data in our electronic devices and the liquid crystalline phases that are used to create an image on certain electronic displays,
Csáthy specializes in the study of topological phases in semiconductors and works to discover and characterize rare topological phases.
His team employs novel investigative techniques for the study of electrons freely flowing in ultrapure gallium arsenide semiconductor crystals,
The gallium arsenide crystals grown using the molecular beam epitaxy technique serve as a model platform to explore the many phases that arise among strongly interacting electrons,
"Our gallium arsenide is unique among semiconductors and other novel materials due to its extremely low level of disorder,
F Capture would enable motion capture without body sensors and could track actorsmovements even if they are behind furniture or walls.
F Capture would enable motion capture without body sensors and could track actorsmovements even if they are behind furniture or walls.
'fluffy'carbon electrode made from graphene (comprising one-atom-thick sheets of carbon atoms), and additives that alter the chemical reactions at work in the battery,
a positive electrode, a negative electrode and an electrolyte,''said Dr. Tao Liu, also from the Dept. of Chemistry,
the negative electrode is made of graphite (a form of carbon), the positive electrode is made of a metal oxide, such as lithium cobalt oxide,
and the electrolyte is a lithium salt dissolved in an organic solvent. The action of the battery depends on the movement of lithium ions between the electrodes.
Li-ion batteries are light but their capacity deteriorates with age, and their relatively low energy densities mean that they need to be recharged frequently.
By precisely engineering the structure of the electrode, changing it to a highly porous form of graphene,
%The highly porous graphene electrode also greatly increases the capacity of the demonstrator, although only at certain rates of charge and discharge.
Other issues that still have to be addressed include finding a way to protect the metal electrode
which are generally harmful to the metal electrode.""There's still a lot of work to do, "said Liu."
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