#Engineers design magnetic cell sensors MIT engineers have designed magnetic protein nanoparticles that can be used to track cells
the researchers used one of the most promising candidates to create a magnetic sensor consisting of enhanced ferritin modified with a protein tag that binds with another protein called streptavidin.
Such sensors could also be used to monitor the effectiveness of stem cell therapies Jasanoff says."
The researchers are now working on adapting the magnetic sensors to work in mammalian cells. They are also trying to make the engineered ferritin even more strongly magnetic c
With a few key changes, the researchers used a noninvasive ultrasonic technique originally developed to detect microscopic flaws in solid fuel rockets, such as space shuttle boosters,
It is called the ocktail-party problem Typical approaches to solving it have involved either systems with multiple microphones,
is a simple 3d printed device that can pinpoint the origin of a sound without the need for any sophisticated electronics.
Openings around the edge channel sound through 36 passages towards a microphone in the middle. Each passage modifies the sound in a subtly different way as it travels towards the centreoughly
as if an equalizer with different settings were affecting the sound in each slice, explains senior author Steven Cummer, an electrical engineer at Duke university in Durham, North carolina a
The sensor could make it easier to monitor the quality of heparin supplies. Heparin is used widely as an anticoagulant in cardiovascular surgery as well as in postoperative and long-term therapy.
Biosensors experts are enthusiastic about the sensor. Ben Zhong Tang from the Hong kong University of Science and Technology particularly likes the design
Researchers at Stanford university have taken a step closer to this type of prosthetic by creating an electronic skin that responds to pressure changes
microstructured resistive pressure sensors, flexible printed organic electronic circuits, and nerve cells containing light-activated ion channels. The pressure sensors are made of a carbon nanotube-elastomer composite shaped into tiny pyramidal structures that are coated onto a surface.
The sensor changes conductance in response to applied pressure. Bao previously made similar capacitive sensors,
but the new resistive sensors better detect the range of pressures sensed by human skin.
Each sensor is connected to an organic circuit printed with the help of researchers at Xerox Palo alto Research center (PARC.
The circuit converts the pressure signal into a series of electrical pulses and increases pulse frequency in response to increasing pressure. his circuit is relatively simple to build,
Bao says. t serves as the perfect electrical readout for our sensors. The researchers used the electrical pulses to modulate the frequency of a light-emitting diode.
In their proof-of-concept study, they sent light from the LED through an optical fiber to stimulate neurons in mouse brain slices.
The nerve cells in these samples were decorated with engineered channelrhodopsins that open in response to light,
triggering nerve cells to fire. The work represents n important advance in the development of skinlike materials that mimic the functionality of human skin at an unprecedented level
who is developing electronic skin at the University of California, Berkeley. t could have important implications for the development of smarter prosthetics. his is just the beginning of the path toward building fully integrated artificial skin,
#Memory-Boosting Devices Tested in Humans A strategy designed to improve memory by delivering brain stimulation through implanted electrodes is undergoing trials in humans.
both groups are studying people with epilepsy who already have implanted electrodes. The researchers can use these electrodes both to record brain activity
and to stimulate specific groups of neurons. Although the ultimate goal is to treat traumatic brain injury
and is seeking regulatory approval to use a more precise electrode array. Although it would be useful from a basic-science viewpoint to discover why stimulation works so well,
a paralyzed 28-year-old man reported a ear-naturalsense of touch from a sensor-laden robotic hand wired to a brain implant.
When a person thinks about certain movements electrodes pick up the nerve and muscle activity, recognize patterns,
electrode arrays were placed onto a paralyzed volunteer sensory and motor cortices. The former manages our sense of touch and the latter controls physical movement of the body.
The implant was wired then to a robotic hand built by the Applied Physics laboratory at Johns Hopkins. Using advanced pressure sensors,
Better algorithms and more sensitive electrodes might yield finer motor control. And advances in brain-machine interfaces should make implants less invasive.
Earlier today, Japanese electronics maker Sharp revealed a humanoid robot-shaped smartphone that I promise won fit in your skinny jeans. It hard to say if it more phone or robot,
the LEDS were bright!).There no word on pricing yet, but Sharp expects to ship Robohon in the first half of 2016.
#Designed by a 16-year-old, these headphones are meant to save your hearing Wee going deaf using headphones.
whether in tiny earphones or big expensive cans, knows that because that what your mom kept telling you. 16-year-old Kingsley Cheng got the same speech from his parents
whenever he rocked his big headphones, the music leaking out in the room around him. urn down the volume
The same data says that 12 percent of children aged 6-19 suffer from hearing loss caused by bad headphone use.
There are a few headphones on the market claiming they can protect your hearing, but none of them were quite right for Kingsley.
Earlier this year, Kingsley and his dad who a 20-year veteran in the US consumer electronics industry put their heads together to produce he world safest headphones.
Their first effort, the Aegis Pro headphones, is now on Kickstarter. Along with serial entrepreneur Anthony Lye, the startup they co-founded, Aegis Acoustics, is on a mission to prevent further hearing loss among kids who love consuming their music with headphones.
Kingsley offered design ideas for the headphones and came up with the company name, Rayman and Anthony handled the business side,
and sound and audio tech specialist Gates Tan came in as CTO to tackle the technical details.
the Aegis Pro headphones don look like a particularly revolutionary product. It definitely a stylish pair of cans,
and a dual speaker on each headphone to ensure protection and performance. On the software side
a method the company calls digital decibel equalizer technology normalizes the volume at a safe level.
LED LIGHTS change color to indicate when it time to stop listening. That a useful feature for parents until the child figures out how to deactivate
The headphones also employ active noise cancellation tech to block out ambient noise. Traditionally, sounds from the environment seeping into our headphones make us crank the volume up to potentially unhealthy levels without even realizing.
The Aegis Pro features four built-in mics that analyze the user surrounding noise and reduce it using an opposite frequency.
Finally, performance is enhanced by the dual speakers in each headphone. Split into a low frequency driver that covers the bass and a high frequency tweeter that delivers the vocals
The headphones can work wirelessly via bluetooth, but also come with a 3. 5mm audio jack. Aegis says the battery can last for up to 14 hours.
and a built-in microphone for you to talk into. The company says it conducted several tests in reputable labs to determine the best way to deliver good performance
If reached, Aegis wants to pack higher quality speaker drivers into the headphones, promising better sound.
that specializes in headphone manufacturing and which serves quite a few big headphone brands though Aegis won divulge which.
They say however, that the manufacturer expertise in this area was extremely helpful, offering insight and advice that made the product better.
but these and other nonmetallic waveguides are constrained by pesky physical laws that require critical dimensions to be at least half the wavelength of the light in size;
but many times larger than the dimensions of current commercial nanoscale electronics. Plasmonics combines the small size and manufacturability of electronics with the high speeds of optics.
When light waves interact with electrons on a metal surface, strong fields with dimensions far smaller than the wavelength of the original light can be createdlasmons.
you can put more of them on the same chip, bringing them closer to practical realization. i
Because it is a noninvasive test relying on sensors placed on the skin, it is easier to administer than traditional methods to measure muscle capacity, such as MRIS or biopsies.#
The research was conducted using middle-aged rats, where electrodes which sends out minute micro-electrical impulses were implanted in the brains.
said Prof Ajai who is a recipient of NTU prestigious Nanyang Assistant Professorship award. he electrodes are harmless to the rats,
with electrode pads affixed to the shaved scalp. It is powered by a separate, portable battery attached by long wires.
putting electrode pads on their head and being hooked up to a battery about the size of a small laptop computer
and led to its cure. hese new findings demonstrate that by inhibiting Pin1, you can degrade this fusion oncogene,
and the possibility of combining this high-technology system with the microchip they previously developed in 2013.
The chip would be used to detect the imminent occurrence of a seizure, in order to activate the pump to inject the drug at just the right moment.
which are the basic charges to make the building blocks of ionic devices such as to name only a few can be, fuel cells, electrolysis cells, batteries, gas sensors,
light photo-catalysts and ferroelectric materials in electronics. nalogous to the best metallic conductors such as copper or silver where the current is transported by electron, in d-Bismuth oxide
and might one day lead to microprocessors that are 100 times smaller than the ones in today computers.
which are used typically as components in optic and electronic devices. By decreasing the spacing between electronic circuits on a microchip, for example,
one can fit more circuits on the same chip to produce a device with greater computing power.
A team of Ph d. students and undergraduate researchers led by UC San diego nanoengineering professor Darren Lipomi demonstrated that the key to generating a smaller nanogap between two nanostructures involves using a graphene spacer,
Having graphene still in the structures is not desirable for electronic devices which require an entire gap between the structures.
He mentions watches and consumer electronics, like the smart phone, as examples. The military in particular may want to use spinel as transparent armor for vehicles and face shields.
Spinel windows could also protect sensors on space satellites, an area Sanghera interested in testing. ou could leave these out there for longer periods of time,
a novel wind lidar called Aladin incorporating two powerful lasers, a large telescope and very sensitive receivers.
Giuseppe Pulella, Programme Manager for the laser transmitter at the Selex-ES factory near Florence, added, e have been working at the forefront of optics
there are antennas that receive signals. This function is assumed by the plexin B2 receptor, which receives a location signal from neighbouring cells,
meaning the antenna, says Worzfeld. In both cases, the damaged kidney was unable to regenerate,
That project led to research collaborations and funding support from Mayo Clinic in Arizona. The measurements would help in the diagnosis
The worst historic effect of this kind led to the huge destruction in Mexico city during an earthquake in 1985.
Many interesting and important structures in biological cells and computer chips have features smaller than that.
and our current detectors have resolutions of about 10 microns or so at best, Pickworth said. e really need better than that to see what going on inside the hot spot. This microscope is going to provide much better resolution by using X-ray optics,
with detector resolution and a lot more throughput than other imaging systems. n
#Scientists tune X-rays with tiny mirrors The secret of X-ray science like so much else is in the timing.
MEMS are fabricated microscale devices using silicon wafers in facilities that make integrated circuits. The MEMS device acts as an ultrafast mirror reflecting X-rays at precise times and specific angles. xtremely compact devices such as this promise a revolution in our ability to manipulate photons coming from synchrotron light sources,
Now, a novel kind of pressure stocking developed by Fraunhofer researchers is set to help protect against wounds via an integrated sensor system that sends a warning
In-stocking sensors provide three-dimensional pressure readings To ensure that poorly healing wounds don occur in the first place,
researchers at the Fraunhofer Institute for Silicate Research ISC in Würzburg with support from industry partners and colleagues from the Fraunhofer Institute for Integrated circuits IIS in Erlangen have developed a special stocking with integrated sensors.
40 very fine, dielectric elastomer sensors measure compression load and distribution for diabetes patients taking over the job usually performed by the nerves in their feet. xisting systems on the market measure the pressure distribution
Our sensors are attached to the stocking sole, at the heel, the top of the foot and the ankle,
Electronics transmit data to your smartphone The sensors are made from a soft and very stretchy elastomer silicone film that is easy to integrate into textiles.
This film is coated on both sides with highly flexible electrodes of graphite or carbon black. When the film deforms as a result of compression or stretching,
The sensors can recognize this, and transmit the measurement signal via a conductive thread to a wireless electronics unit developed by researchers at Fraunhofer IIS
and consisting of an application-specific integrated circuit (ASIC) chip and a controller. he unit is designed to record high-resolution readings from up to 40 capacitive sensors across an extremely wide value range,
says Johann Hauer, the Fraunhofer IIS project manager responsible for the project. The ASIC collects the measurement data
and the controller transmits it wirelessly to a smartphone or tablet, which then informs the diabetes patient that it is time to change foot position
or weight distribution. ith the current prototype, the electronics are attached to the end of the stocking.
Wee planning to relocate them to a small, button-sized housing that can be detached with a hook
There no way around this until a reliable method for cleaning the electronics is developed says Brunner.
The sensors, on the other hand, have to be resistant to water and detergent. he first washability tests are in planning,
The sensors are stitched either or glued between two layers of fabric, which makes the stockings more comfortable to put on
Joggers could use the integrated sensor stockings to analyze their running style and foot positioning y
or ommunicate via an acoustic modem, or a satellite link,?Williams explains. hat the system does is,
The base included LED LIGHTS microcontrollers, gears, circuitry and a USB port. Control of the device is automated through an app the researchers developed for this purpose.
With a single touch of the screen by the healthcare worker, the phone communicates wirelessly via Bluetooth to controllers in the base to process
#Hard-wearing sensor defying soot and heat Measuring the content of nitrogen oxides (NOX) in the exhaust gases from a ship is, in itself,
several ports worldwide are now requesting shipping companies to restrict their NOX emissions. ith a new sensor,
More customers making green requirements A prototype of the sensor has passed just a practical test where it has been in operation for more than four months on board one of Maersk Line container vessels.
First with direct measurements ight from the start, it became clear that infrared sensors would be able to perform the required measurements.
The big challenge was that the sensors would be required to continue to deliver reliable measurements over very long periods in an aggressive environment,
and the level of soot and various aggressive substances that the sensors are exposed in the exhaust gases from a marine engine during day-to-day operation.
which in combination makes the sensor glass dirt-repellent. In other words, the glass in the instrument is not in itself ano?
Following successful testing at sea, the sensor will now be put through a series of tests at Green Instruments
and marketing the new sensor
#Ebola Vaccine Demonstrates 100%Protection in Latest African Trial According to an unusual new study, published last week in the world most prestigious medical journal Lancet, the deadly outbreak
T cells become active when a signalften from a virus or bacteriumriggers molecular sensors on their surface
paving the way for high-density storage to move from hard disks onto integrated circuits. This image taken from a computer simulation shows nanomagnets tilted at various angles,
This opens the door to a memory system that can be packed onto a microprocessor, a major step toward the goal of reducing energy dissipation in modern electronics. o reduce the power draw
and increase the speed, we want to be able to manufacture a computer chip that includes memory
the physics needed to create long-term storage are not compatible with integrated circuits. reating and switching polarity in magnets without an external magnetic field has been a key focus in the field of spintronics.
Generating a magnetic field takes power and space, which is why magnets have not yet been integrated onto computer chips.
Instead, there are separate systems for long-term magnetic memory. These include a computer hard disk drive where data are stored
or RAM, on the integrated circuits of the central processing unit, or CPU, where calculations and logic operations are performed.
Packing a sufficient number of nanomagnets onto a chip meant aligning them perpendicularly but that vertical orientation negated the switching effects of tantalum. e found that by tilting the magnet just 2 degrees was enough you get all the benefits of a high-density magnetic switch without the need for an external magnetic field,
Now, Wyss Institute researchers led by Church have developed a new suite of such sensors, reported in Nucleic acids Researchjournal,
magnetic and mechanical properties that could be used in electronics and may even have implications for understanding biological systems.
when the scientists put the membrane into the beam of a scanning electron microscope, it folded.
Now, researchers at MIT Koch Institute for Integrative Cancer Research are closing that information gap by developing a tiny biochemical sensor that can be implanted in cancerous tissue during the initial biopsy.
The sensor then wirelessly sends data about telltale biomarkers to an external eaderdevice, allowing doctors to better monitor a patient progress
the David H. Koch (1962) Professor in Engineering in the Department of Materials science and engineering and a Koch Institute investigator who oversaw the sensor development. ather than waiting months to see
Two MIT doctoral students in Cima lab worked with him on the sensor project: Vincent Liu, now a postdoc at MIT,
Their research is featured in a paper in the journal Lab on a Chip that has been published online.
Once implanted, the sensor wirelessly sends data about biomarkers to an external eaderdevice, allowing doctors to better monitor a patient progress
Measurements without MRI The sensors developed by Cima team provide real-time, on-demand data concerning two biomarkers linked to a tumor response to treatment:
these sensors, read over time, could let you see how hypoxia was changing in the tumor,
The sensor housing, made of a biocompatible plastic, is small enough to fit into the tip of a biopsy needle.
Devising a power source for these sensors was critical, Cima explains. Four years ago, his team built a similar implantable sensor that could be read by an MRI SCANNER.
RI scans are expensive and not easy to make part of routine care, he says. e wanted to take the next step
and put some electronics on the device so we could take these measurements without an MRI.
For power, these new sensors rely on the reader. Specifically, there a metal coil inside the reader and a much smaller coil in the sensor itself.
An electric current magnetizes the coil inside the reader, and that magnetic field creates a voltage in the sensor coil
when the two coils are close together a process called mutual inductance. The reader sends out a series of pulses,
and the sensor ings back, as Cima puts it. The variation in this return signal over time is interpreted by a computer to
Additional applications Cima team successfully tested the sensors in lab experiments including implanting them in rodents.
While the sensors were implanted only for a few weeks, Cima believes they could be used to monitor a person health over many years. here are thousands of people alive today,
because they have implantable electronics, like pacemakers and defibrillators, he says. ee making these sensors out of materials that are in these kinds of long-term implants,
and given that theye so small, I don think there will be a problem. These initial experiments showed that the sensors could quickly, reliably,
and accurately detect ph and oxygen concentration in tissue. The researchers next want to see how well the sensors do measuring changes in ph over an extended period of time. want to push these probes
so we can use them to monitor tumor response, Cima says. e did a little bit of that in these experiments,
While the primary application of these sensors would be cancer care, Cima is also eager to collaborate with researchers in other fields, such as environmental science. or example,
Cima says. excited about using these sensors to bring big data to environmental monitoring
#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
who led the current research. hey found the lesions were very persistent in DNA, meaning we don have a repair system to take them out,
therefore may help scientists improve the quality of superconducting magnets and sensors, and develop energy-efficient methods for transporting electricity.
which could make them lose their superfluid properties. t a complicated experiment, with a lot of laser beams, electronics,
#Scientists find a new way to manufacture graphene nanoribbons for future electronics There is no doubt that graphene is the key to the future of electronics.
It is the most significant material for developing new types of electronic devices because of its many extraordinary properties,
However, in order to use graphene in high-performance semiconductor electronics ultra-narrow strips of graphene are needed and scientists have struggled to create them.
in order to make electronics. Image credit: Arnold Research Group and Guisinger Research Group, news. wisc. eduscientists at University of Wisconsin-Madison have discovered now a method to grow these ultra-narrow strips, called nanoribbons, with desirable semiconducting
properties directly on a conventional germanium semiconductor wafer. This discovery is aimed at allowing manufacturers of electronics to develop the next-generation of electronic devices that will have much greater performance.
This technology is also likely to find applications in other industries as well, such as military, used in sensors that detect specific chemical
and biological species and photonic devices that manipulate light. Furthermore, this method of producing nanoribbons is complicated not overly it is scalable
and is compatible with current equipment used in semiconductor processing. In fact it is hard to put into words how significant this achievement is.
Professor Michael Arnold, one of the authors of the study, said raphene nanoribbons that can be grown directly on the surface of a semiconductor like germanium are more compatible with planar processing that used in the semiconductor industry,
and so there would be less of a barrier to integrating these really excellent materials into electronics in the futurewhere graphene could be in the future,
although with smooth edges, is far too short for use in electronics. But now scientists found a way to manufacture ultra-narrow nanoribbons with smooth
and heat with such efficiency that it is likely to revolutionize electronics. Image credit: Alexanderalus via Wikimedia, CC BY-SA 3. 0in this process scientists start with methane,
which is needed for future generations of electronics. However, there are still some problems left to solve.
whether the system uses a microinverter or a standard string inverter, and whether the system is installed on a rooftop
#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,
who is the first author of the report. hen we scrutinised the hybrid gels under a scanning electron microscope (SEM),
or corrosion damage or in energy technology to build new electrolytes for rechargeable batteries or enhanced dielectrics for supercapacitors.
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,
and microelectronics. e believe our method has huge potential, comments Jin-Chong, t opens the door to exploiting MOF-based supramolecular gels as a new 3d scaffolding material useful for engineering optoelectronics and innovative micromechanical devices n
#Novel technology may illuminate mystery moon caves It widely believed that the moon features networks of caves created when violent lava flows tore under the surface from ancient volcanoes.
The scattering photons from the laser bounce off obstacles and make their way back to sensors in the camera.
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