The implant is a square silicon chip just four millimeters (about 1/6 of an inch) wide, studded with an array of 100 hair -
thin electrodes.
Using an array of hair -
thin electrodes implanted in his brain, a 25 - year - old quadriplegic man was able to operate a computer, open and close a prosthetic hand, and manipulate a robotic arm just by thinking about it, according to a new study.
With hair -
thin electrodes, it is now possible to put a pump on the side of them and deliver drugs to the site when there is aberrant activity, quiet it down.
The BrainGate implant's array of 100 hair -
thin electrodes delves the cortex and eavesdrops on neurons that normally control hand and arm movement.
Baughman cautions, however, that the MIT team achieved its best results with very
thin electrodes.
In hundreds of experiments he glued a living fly to a special plastic platform under a microscope, sunk a wisp -
thin electrode into its honeycombed eye, and recorded how its retina responded to beams of light.
The nanogenerator itself includes
thin electrode sheets on the front and back of the mesoporous polymer film, and the researchers can attach this soft, flexible film seamlessly to flat, rough or curvy surfaces, including human skin.
Not exact matches
He produced a capacitor where the
electrodes were coated with
thin layers of carbon chemically punctured with millions of tiny holes.
They adhered a
thin sheet of
electrodes onto rats whose skin had been squeezed between two magnets to mimic pressure wounds.
The new
electrode grid, developed by a team of researchers at the University of California San Diego and Massachusetts General Hospital, is about a thousand times
thinner — 6 micrometers versus several millimeters thick — than clinical
electrode grids.
«These
electrodes occupy minuscule volumes — imagine Saran wrap, but
thinner.
280 °C, which is a trait that is highly desired for an
electrode material, but rather unusual for hybrid organic?inorganic
thin films.
The
electrode performance can be further enhanced by depositing a
thin protective LiPON solid - state electrolyte layer on top of Li - terephthalate.
The Utah team miniaturized electrocorticography
electrodes — sensors developed in the 1960s to locate the seizure - causing areas in the brains of epileptics — and encased them in
thin sheets of silicon.
The new displays ditch the
electrodes, simultaneously making the screen
thinner and decreasing its energy requirements.
Then he slowly pushed an impossibly
thin,
electrode - tipped rod into her cerebral cortex, through the corpus callosum and beyond.
Finally, they wired up their pillars into alternating rows of anodes and cathodes, submerged their forest with a lithium - containing electrolyte, and showed that it provided 78 % more power than a microbattery made with
thin - film carbon
electrodes, they reported here 13 February at the annual AAAS meeting.
Unlike large batteries, microbattery
electrodes are typically made out of
thin carbon films stacked on top of one another.
The new power source, which runs on liquid fuels, has at its core a
thin layer of electrolyte materials sandwiched between
electrode materials.
«This thing [a
thin film of cobalt and phosphate on an
electrode] just churns away making [oxygen] from water.»
It consists of a pair of
thin, flat, metal
electrodes with a tiny gap sandwiched in between.
Laid down in
thin films, randomly oriented carbon nanotubes form conductive networks that can serve as
electrodes; patterned and layered films can function as sensors or transistors.
They used scalable dip - coating procedures to build up polymer multilayers and ensured
thin metal
electrode coatings with physical vapor deposition techniques.
The cylinders will be sandwiched between
electrodes of gold - plated silicon but also separated from them by
thin spaces of vacuum — the test masses will float on the
electrodes» electrostatic field.
The novel sensor structure combines a strip of seven micron -
thin buckypaper with silver ink
electrodes printed from a common, commercially available ink - jet printer.
The research team developed, for the first time in the world, a new technology that combines porous stainless steel, which is thermally and mechanically strong and highly stable to oxidation / reduction reactions, with
thin - film electrolyte and
electrodes of minimal heat capacity.
While coating the
electrode surface with a
thin layer of carbon or graphene had been shown to improve performance, there was no microscopic and quantitative understanding of why this made a difference, Bazant says.
When the
electrodes and the active layer are printed as
thin films on top of each other, defects in one layer will act as points of attack for the next layer to be printed.
Physicians cut through the scalp, drilled into the skull and placed a
thin sheet of
electrodes directly on top of the brain.
In a new study published in Nature Catalysis, a team at the U.S. Department of Energy's (DOE) Argonne National Laboratory reports a breakthrough in understanding the chemistry of the microscopically
thin layer that forms at the interface between the liquid electrolyte and solid
electrode.
Focus fusion is initiated when a pulse of electricity is discharged through a hydrogen - boron gas across two nesting cylindrical
electrodes, transforming the gas into a
thin sheath of hot, electrically conducting plasma.
The researchers designed the
electrodes at the nanoscale — thousands of times
thinner than the thickness of a human hair — to ensure the greatest surface area would be exposed to water, which increases the amount of hydrogen the device can produce and also stores more charge in the supercapacitor.
The yellow microspheres are applied to an
electrode and then covered with an extremely
thin nanoscale layer of iron oxide.
But with the new material, either p - type or n - type functions can be obtained just by bringing the vanishingly
thin film into very close proximity with an adjacent metal
electrode, and tuning the voltage in this
electrode from positive to negative.
The
electrodes caused only a slight degradation in hearing, a problem that might be avoidable in the future with
thinner materials.
In the context of an international cooperation project, physicists at the Technische Universität München (TUM) have now observed the creation of razor
thin polymer
electrodes during the printing process and successfully improved the electrical properties of the printed films.
The researchers placed particles of gold ranging in diameter from 15 to 30 nanometers in a fluid suspension within a
thin chamber located between two
electrodes.
This hydrophobic coating expels water molecules from the vicinity of the
electrode surface and then, upon charging for the first time, decomposes and forms a stable interphase — a
thin mixture of breakdown products that separates the solid anode from the liquid electrolyte.
Then they cut the
electrode into extremely
thin slices and took them to Berkeley Lab for examination with intense X-rays from the Advanced Light Source synchrotron, a DOE Office of Science User Facility.
In a previous study (Applied Physics Letters, Volume 103, Issue 2, 021116 (2013)-RRB- the research team of David R. Barbero already demonstrated that nano - engineered networks can be produced onto
thin and flexible transparent
electrodes that can be used in flexible solar cells.
They sandwiched a
thin layer of a solid acid called cesium hydrogen sulfate between
electrodes and pressed it tight for good contact.
A better alternative would be
thinner, softer
electrodes such as carbon nanotubes, a thousandth of the diameter of regular wires.
When the soft - landed clusters diffuse through the extremely
thin membrane and reach the
electrode surface of the newly designed device, the team has a detailed and precisely defined active species they can examine using several electrochemical and spectroscopic techniques.
To achieve this, they stacked two atomic layers of chromium triiodide with atomically
thin gate dielectrics and
electrodes.
The CMOT project aims to tailor and develop solution based metal oxide
thin - film transistors (MOTFTs) with graphene
electrodes for the field of flexible, low - cost electronics.
A bismuth vanadate
thin - film
electrode is being tested in an electrolyte solution to mimic conditions in an artificial photosynthesis device.
Investigation and tuning of graphene
electrodes for solution - processable metal oxide
thin - film transistors in the area of low - cost electronics - CMOT
In this study, a chronically stable class of
thin ‐ film devices for electrocorticography is manufactured incorporating silicon carbide and diamond ‐ like carbon as adhesion promoters between glassy carbon (GC)
electrodes and polyimide and between GC and platinum traces.
The researchers» new material, titanium dioxide crystals attached to a
thin carbon sheet called graphene, is incorporated into the battery's negative
electrode.
In existing
thin layered solar cells, the
electrodes are produced from a metal and indium tin oxide.