#Researchers discover cancer markers may be visible early during human development Researchers at the Virginia Bioinformatics Institute have uncovered a link between the genomes of cells originating in the neural crest
therefore may help scientists improve the quality of superconducting magnets and sensors, and develop energy-efficient methods for transporting electricity.
such as military, used in sensors that detect specific chemical and biological species and photonic devices that manipulate light.
#Scientists pioneer method to track water flowing through glaciers Researchers for the first time have used seismic sensors to track meltwater flowing through glaciers and into the ocean,
But it the promise of MOF nanoparticles suitable to make into thin films for sensors and microelectronics that is particularly alluring.
for instance, function as a coupled temperature-moisture sensor that rapidly switches from turquoise to dark blue colour for easy identification, reversibly, upon heating.
Thin film sensors created using MOF nanoparticles harvested from hybrid gels The team worked with Isis Innovation to patent the technology and Samsung Electronics
are looking to translate this discovery into a range of real-world applications including optoelectronics, thin-film sensors,
The scattering photons from the laser bounce off obstacles and make their way back to sensors in the camera.
#High-sensitivity, high resolution magnetocardiography (MCG) for use at room temperature developed Researchers at Tohoku University have succeeded in developing a sensor for the living body that can detect the bio-magnetic field with high sensitivity
Applications of these devices include advanced microscopes, displays, sensors, and cameras that can be mass-produced using the same techniques used to manufacture computer microchips. hese flat lenses will help us to make more compact and robust imaging assemblies,
Testing the sensors In this study, researchers showed that the mouth guard sensor could offer an easy and reliable way to monitor uric acid levels.
The mouth guard has been tested with human saliva but hasn been tested in a person mouth. Researchers collected saliva samples from healthy volunteers and spread them on the sensor,
which produced readings in a normal range. Next, they collected saliva from a patient who suffers from hyperuricemia,
The sensor detected more than four times as much uric acid in the patient saliva than in the healthy volunteers.
Fabrication and design Wang team created a screen-printed sensor using silver, Prussian blue ink and uricase,
researchers needed to make sure that the sensors only reacted with the uric acid. Nanoengineers set up the chemical equivalent of a two-step authentication system.
which ensures that only the smallest biochemicals get inside the sensor. The second step is a layer of uricase trapped in polymers,
That information is transmitted then to an electronic board as electrical signals via metallic strips that are part of the sensor.
uses small chips that sense the output of the sensors, digitizes this output and then wirelessly transmits data to a smart phone, tablet or laptop.
Researchers also will have to test the materials used for the sensors and electronics to make sure that they are indeed completely biocompatible.
Wang and Mercier lead the Center for Wearable Sensors at UC San diego, which has made a series of breakthroughs in the field,
and pens filled with high-tech inks for Do it Yourself chemical sensors. C San diego has become a leader in the field of wearable sensors,
said Mercier e
#Study finds dramatic increase in concurrent droughts, heat waves Droughts and heat waves are happening simultaneously with much greater frequency than in the past, according to research by climate experts at the University of California, Irvine.
A team from UCI Center for Hydrometeorology & Remote Sensing examined data gathered from ground sensors and gauges during a 50-year period beginning in 1960.
and form a scattering pattern on the detector a signal the team used to determine the monolayer structure.
and produce a signal on a detector that scientists use to determine where atoms are located in the monolayer.
have been refining cell-surface sensors known as chimeric antigen receptors, or CARS. Once inserted into T cells,
(or traffic) at the surface of a sensor, which drastically reduced the signal of our tests,
(or traffic) at the surface of a sensor, which drastically reduced the signal of our tests,
and that is to me an opportunity to change the world in a very big waysaid Baratunde Cola, an associate professor in the George W. Woodruff School of Mechanical engineering at Georgia Tech. s a robust, high-temperature detector,
and made it a light sensor, says Catherine Drennan, a professor of chemistry and biology at MIT.
Embedded Optical Sensors Could Make Robotic Hands More Dexterous Optical sensors may be suited uniquely for use in robotic hands,
according to Carnegie mellon University researchers who have developed a three-fingered soft robotic hand with multiple embedded fiber optic sensors.
They also have created a new type of stretchable optical sensor. By using fiber optics, the researchers were embed able to 14 strain sensors into each of the fingers in the robotic hand,
giving it the ability to determine where its fingertips are in contact and to detect forces of less than a tenth of a newton.
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 Robonaut has only 42 sensors in its hand and wrist.
or force sensors is problematic because wiring can be complicated, prone to breaking and susceptible to interference from electric motors and other electromagnetic devices.
But a single optical fiber can contain several sensors; all of the sensors in each of the fingers of the CMU hand are connected with four fibers,
although, theoretically, a single fiber could do the job, Park said. And the optical sensors are impervious to electromagnetic interference.
The Carnegie mellon researchers will discuss the robotic hand, developed together with researchers at Intelligent Fiber optic Systems Corp.,with support from NASA, Sept. 29 at the IEEE International Conference on Intelligent Robots and Systems, IROS 2015, in Hamburg, Germany.
A report on the highly stretchable optical sensors will be presented Oct 1 at the same conference. f you want robots to work autonomously
you need robotic hands that have more sensors than is typical today. Yong-Lae Park Industrial robots, working in a controlled environment where people don venture,
are capable of extremely precise manipulation with only limited sensors. But as roboticists at CMU and elsewhere work to develop soft robots that can interact routinely and safely with humans,
The skeletal onesare 3-D-printed hard plastic and incorporate eight sensors for detecting force.
Each of the three sections is covered with a soft silicone rubber skin embedded with a total of six sensors that detect where contact has been made.
and Kevin Low, incorporates commercially available fiber Bragg grating (FBG) sensors, which detect strain by measuring shifts in the wavelength of light reflected by the optical fiber.
Despite their advantages, conventional optical sensors don stretch much glass fibers stretch hardly at all and even polymer fibers stretch typically only 20-25 percent, Park noted.
Park has developed previously highly stretchable microfluidic soft sensors membranes that measure strain via liquid-conductor-filled channels
So Park, working with mechanical engineering students Celeste To from CMU and Tess Lee Hellebrekers from the University of Texas, invented a highly stretchable and flexible optical sensor, using a combination of commercially available silicone rubbers.
Park said this type of flexible optical sensor could be incorporated into soft skins. Such a skin would
including inexpensive printed electronics, intelligent packaging and disposable sensors. Developed by researchers at the University of Cambridge in collaboration with Cambridge-based technology company Novalia,
In addition to cheaper printable electronics, this technology opens up potential application areas such as smart packaging and disposable sensors,
#Bioengineers cut in half time needed to make high-tech flexible sensors Bioengineers at the University of California,
San diego, have developed a method that cuts down by half the time needed to make high-tech flexible sensors for medical applications.
The advance brings the sensors, which can be used to monitor vital signs and brain activity, one step closer to mass-market manufacturing.
It also makes it possible to manufacture the sensors with a process similar to the printing press
a bioengineering professor at the Jacobs School of engineering at UC San diego. Researchers describe their work in the journal Sensors. clinical need is
Their sensors have been used to monitor premature babies, pregnant women, patients in Intensive care units and patients suffering from sleep disorders.
Coleman and colleagues quickly found out that nurses wanted the sensors to come in a peel-and-stick form,
The medium on which the sensors were placed also needed to be approved FDA. The sensorsoriginal fabrication process involved 10 stepsive of which had to take place in a clean room.
Also, the steps to remove the sensors from the silicon wafer theye built on alone took anywhere from 10 to 20 minutes.
And the sensors remained fragile and susceptible to rips and tears. But what if you could use the adhesive properties of a Band aid-like medium to help peel off the sensors from the silicon wafer easily and quickly?
Wouldn that make the process much simplernd faster? That was the question that Dae Kang,
to easily remove the sensors, made of gold and chromium, from the silicon wafer. This was tricky work.
The coating had be sticky enough to allow researchers to build the sensors in the first place but loose enough to allow them to peel off the wafer. t a Goldilocks problem,
That means the sensors can be peeled off with any kind of adhesive, from scotch tape to a lint roller,
Coleman team also showed that the sensors could be fabricated on a curved, flexible film typically used to manufacture flexible printed circuits and the outside layer of spacesuits.
Researchers were able to easily peel off the sensors from the curved film without compromising their functioning.
In order to make the sensors more like peel off stickers researchers essentially had to build the sensors upside down
so that their functioning part would be exposed after they were removed from the wafer. This was key to allow for easy processing with a single peel off step.
Researchers also demonstrated that the sensors they built with the new fabrication process were functional.
They placed a sensor on a subject forehead and hooked it up to an electroencephalography machine.
The sensors were able to detect a special brain signal present only when the subject eyes were closed classic electroencephalogram testing procedure.
The researchers also demonstrated that these sensors are able to detect other electrical rhythms of the body
Future applications of such a DNA walker might include a cancer detector that could roam the human body searching for cancerous cells
They are used in such commonly used products as compact disc players, smoke detectors, remote control devices and many more.
such as digital cameras, night-vision goggles, smoke detectors, surveillance systems, satellites and other devices that rely on electronic light sensors.
The new sensor his group recently unveiled weighs only two milligrams and takes up only two cubic millimeters,
The sensor could be useful for other things besides flying robots. For demonstration the group created
but its thermostat and smoke detector likely don sell in huge volumes. And although Google X Loon balloon project for Internet access is at the point of testing with wireless carriers
we and others in the field have been able to make sensitive touch sensors, but the electrical signal that comes out from the sensor is not the right format for the brain to be able to interpret it,
study coauthor Zhenan Bao, a chemical engineer at Stanford university, told BBC News. ur sensor is coupled now with a printed, simple electronic circuit.
That circuit allows our sensor to generate electrical pulses that can communicate with the brain.
We see this as the first step towards using plastic materials for artificial skin on prosthetic limbs.
Bao and her colleagues demonstrated that the sensors could relay pressure signals to the mammalian nervous system by linking them to a blue LED light that in turn stimulated slices of mouse brain that had been engineered to respond to those wavelengths.
the sensors could serve as the basis of wearable technology. hey are very thin and flexible,
So you could mount a sensor on your skin and use it to detect vital signs like heartbeat and blood pressure. e
#obo-whiskers build picture of surroundings Researchers at the University of Illinoisadvanced Digital Sciences Centre in Singapore have developed a whisker-like sensor array that measures the fluid flow of its surroundings
#Metamaterials assist in'cocktail party'voice recognition Engineers at Duke university have developed a new type of sensor that enhances a computer ability to identify individual sounds that are overlapping,
The patient would then be sent home with a sensor pad strapped to their abdomen while the capsule negiotiated the twists and turns of the intestine,
but also air quality sensor data and images from cameras. n its own, each is of low value,
or there would need to be infrastructure sensors to check the whole platoon is through.
32. ou can put a sensor in a building and you can then hear those inaudible sounds that are created by things happening in that building.
But costs prohibited the sensors being used widely in home alarms, as did the fact that an unsophisticated infrasound microphone would pick up unwanted sound waves,
and connected to pressure sensors on a prosthetic hand, with electrical signals sent from the hand to the brain.
The report also notes that certain phones failed to fully secure their fingerprint sensor, potentially allowing apps to step in
the device, recognizes emotional states in subjects by comparing detected sensor input against a database of human/primate gestures/expressions,
the patent reads. eedback is provided to the wearer after interpretation of the sensor input. Once the database determines the emotional response,
In a new paper they describe a sensor that sends radio signals through a wall and can identify people.
The team expects the sensor to be able to see through multiple walls and look as far as 40 feet.
and smart-home sensors. Nest, for example, monitors the movements of residents so that it can adjust temperatures and keep utility bills low.
Currently the sensor needs a person to be walking directly at it to function. A person walking at an angle is harder to pick up.
In a new paper out of MIT Computer science and Artificial intelligence Lab, the researchers describe a sensor that sends radio signals through a wall
The team expects the sensor to be able to see through multiple walls and look as far as 40 feet.
and smart-home sensors. Nest, for example, monitors the movements of residents so that it can adjust temperatures and keep utility bills low.
Currently the sensor needs a person to be walking directly at it to function. A person walking at an angle is harder to pick up.
whether it's web data or sensor data. They have these instances, they have these databases
Through mobile innovations and sensor technologies, today's doctors can report on key health indicators to prevent illnesses altogether
and power wearable sensors or medical devices or perhaps supply enough energy to charge your cell phone in your pocket says James Hone professor of mechanical engineering at Columbia and co-leader of the research.
The work to be published Oct 14 in the journal Nature Communications could lead to new types of biological sensors flow valves
The next step is to combine a charged nanopore setup with a sensor to build a DNA sequencing device that would incorporate both motion control and nucleotide recognition.
The copper layer acts like a sensor that allows you to measure the voltage difference between the anode
#Getting sharp images from dull detectors Observing the quantum behavior of light is a big part of Alan Migdall's research at the Joint Quantum Institute.
--and sometimes only one photon at a time, using"smart"detectors that can count the number of individual photons in a pulse.
what Migdall calls"stupid"detectors that, when counting the number of photons in a light pulse,
as anything more than zero befuddles these detectors and is considered as number that is known only to be more than zero.
The physicists were surprised that they could so easily obtain such a sharp interference effect using standard light detectors.
And why use"stupid"detectors? Because they are cheaper to use. The Experiment In the case of coherent light, a coordinated train of waves approach a baffle with two openings (figure, top.
creating a characteristic pattern as recorded by a detector, which is moved back and forth to record the arrival of light at various points.
Each of these two portions of light will strike movable detectors which scan across sideways.
If the detectors could record a whole pattern, they would show that the pattern changes from moment to moment.
if you record not just the instantaneous interference pattern but rather a correlation between the two movable detectors.
when detector 1 observes light at a coordinate x1 how often does detector 2 observe light at a coordinate x2?
Plotting such a set of correlations between the two detectors does result in an interference-like pattern,
the detectors would run into each other. To avoid that a simple partially silvered mirror, commonly called a beam splitter,
That way the two detectors can simultaneously sample the light from virtual positions that can be as close as desired
And what about the use of stupid detectors those for which each"click"denoting an arrival tells us only that more than zero photons have arrived?
so that its limited coherence time is larger than the recovery time of our stupid detectors,
it is possible for the detector to tell us that a specific number of photons were recorded, perhaps 3 or 10,
"In this way, we get dumb detectors to act in a smart way, "says Migdall. This improved counting the number of photons,
or equivalently the intensity of the light at various places at the measuring screen, ensures that the set of correlations between the two detectors does result in an interference-like pattern in those correlations.
So while seeing an interference pattern could not be accomplished with dumb detectors, it could be accomplished by engineering the properties of the light source to accommodate the lack of ability of the detectors
and then accumulating a pattern of correlation between two detectors. Considering that the incoming light has a wavelength of 800 nm,
the pattern is sharper by a factor of 20 or more from what you would expect
#Sensor invented that uses radio waves to detect subtle changes in pressure Stanford engineers have invented a wireless pressure sensor that has already been used to measure brain pressure in lab mice with brain injuries.
In one simple demonstration they used this wireless pressure sensor to read a team member's pulse without touching him.
Bao's wireless sensor is made by placing a thin layer of specially designed rubber between two strips of copper.
and calibrated the pressure sensor in simple laboratory tests. Alex Chortos graduate student in the department of materials science and engineering made the wireless device more robust and reusable.
Tse tested the wireless pressure sensor as a tool for managing patients with severe brain trauma.
In experiments on laboratory mice Tse used radio waves to probe Bao's wireless sensor allowing him to monitor changes in intracranial pressure continuously.
On a slightly different tack his team is thinking about how to retool the wireless sensor
"The sensor is connected to a modem using radio frequency systems. The processed information from the elder's movement pattern may include factors such as temperature, heart rate and deviations in the usual activity path,
#Launch of new sensor device on Hudson river set to wire river for cleaner water In the race to find solutions to critical water issues the launch of a new cost-effective water quality sensor
The installation of the Institute's newest generation of River and Estuary Observatory Network (REON II) sensor arrays signifies the passing of the baton from the science lab to the river as they run ahead complementing government capacity to invest in wiring the river for cleaner water.
It is one of 37 sensor stations currently in place in the Hudson and St lawrence river watersheds making REON one of the world's most robust resources of real-time data.
The goal of the REON research team to develop affordable scalable low-profile sensor networks
and its potential for making water sensor technology universal could be transformational to the field of environmental science.
a new type of meson 1 was discovered by analysing data collected with the LHCB detector at CERN's Large hadron collider (LHC) 2. The new particle is bound together in a similar way to protons.
A novel sensor makes it possible to significantly reduce their size and moreover enables a more precise analysis in half the time previously required.
Researchers at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS in Duisburg have developed a sensor that shrinks the size of the spectrometer optics.
Whereas earlier high-resolution spectrometers were the size of a washing machine those built using our sensor will be no bigger than a microwave oven says IMS department head Werner Brockherde.
And this is not the only advantage of the new sensor: the delivered results are also more precise and available in half the time.
The first sensor that combines time-and space-resolved measurementsto understand how the scientists were able to miniaturize the instrument to this extent we need to take a closer look at its inner workings.
In the first beam channel light-sensitive electronic components known as CCD line sensors record the entire spectrum of the sample.
Our CMOS-based sensor enables these two sets of measurements to be conducted in parallel. As a result we only require a single beam channel
Demonstrator at the Vision trade showa demonstration version of the sensor will be presented at the Vision trade show in Stuttgart from November 4 to 6 (Booth 1h74.
Our new sensor which was developed in Germany and is not available anywhere else will enable these manufacturers to secure a further competitive advantage.
After the integrated image sensor has recorded the images, the processor evaluates the frames.""The video itself no longer has to--as previously the case--be sorted
A total of 72 passive and 13 active components (such as LEDS, DC-to-DC converters, memory chip, image sensor and image processor) had to be positioned within the module in an especially space-saving manner.
when a sensor was touched was a tingle. To provide more natural sensations, the research team has developed algorithms that convert the input from sensors taped to a patient's hand into varying patterns and intensities of electrical signals.
The sensors themselves aren't sophisticated enough to discern textures, they detect only pressure. The different signal patterns, passed through the cuffs,
are read as different stimuli by the brain. The scientists continue to fine-tune the patterns
and is detected by a sensor. In the NIST LADAR system the laser sweeps continuously across a band of frequencies.
and a component that contains an integrated optical sensor for measuring the size of small droplets.
In the paper the researchers also described how off-the-shelf sensors or other integrated components can be incorporated easily into systems built from MFICS
And because the new process creates membranes on silicon surfaces it is a significant step toward creating bio-silicon interfaces where biological sensor molecules can be printed onto cheap silicon chip holding integrated electronic circuits.
which would give personnel and equipment such as sensors improved protection along with other benefits. This research was reported in the January 30 2014 issue of the journal Acta Materialia.
Different sensors see different wavelengths of light. Infrared is important for heat-seeking capabilities. UV imaging can be used to detect threats not seen in the visible spectrum.
UV detectors also have applications in space-borne astronomy missions. A single window that could be produced using the NRL-developed nanocrystalline spinel would be transparent across many technologically important wavelengths easing design
Sensor-based irrigation systems show potential to increase greenhouse profitability Wireless sensor-based irrigation systems can offer significant benefits to greenhouse operators.
Advances in sensor technology and increased understanding of plant physiology have made it possible for greenhouse growers to use water content sensors to accurately determine irrigation timing and application rates in soilless substrates.
The wireless sensor systems provide more accurate measurements of substrate moisture than qualitative methods and can save irrigation water labor energy and fertilizer.
The authors of a report published in Horttechnology said that the use of sensor-based irrigation technology can also accelerate container and greenhouse plant production time.
Sensor-based irrigation systems substitute capital for water and associated inputs such as energy labor and fertilizer the authors explained.
The scientists found that controlling irrigation using data from moisture sensors led to substantial reductions in both production time and crop losses.
Calculations showed that annualized profit under the wireless sensor system was over 1. 5 times more than under the nursery's standard practice
even if efficiency gains are not as high as those in the study controlling irrigation using wireless sensor systems is likely to increase profitability substantially.
They added that wireless sensor systems can have environmental benefits as well as the economic benefits shown in the study.
#Laser scientists create portable sensor for nitrous oxide, methane Rice university scientists have created a highly sensitive portable sensor to test the air for the most damaging greenhouse gases.
The device created by Rice engineer and laser pioneer Frank Tittel and his group uses a thumbnail-sized quantum cascade laser (QCL) as well as tuning forks that cost no more than a dime to detect very small amounts of nitrous oxide and methane.
and the QEPAS sensor's findings compared favorably to the lab's much larger instrument,
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