The Organic Bio-Based Motor oil patent describes the assembly process for blending Nanotubes and various highly viscous all natural plant oils to form Nanosave N1-Organic.
which measures the interaction of photons with an activated surface using nanostructures in order to do chemical and biological sensing.
Passian This unique microscope will enable users to analyze samples ranging from engineered nanostructures and nanoparticles to naturally occurring plant cells, biological polymers and tissues.
The cell wall of a plant is layered a nanostructure made up of biopolymers such as cellulose. Researchers are looking to convert these biopolymers to free the functional sugars and discharge energy.
Can nanofiber save your life? Researchers in professor Margaret Frey lab create fibers hundreds of times thinner than a human hair that can capture toxic chemicals and pathogens.
Frey and her colleagues are replacing that cost by making the devices with nanofibers from plastics,
Using nanofibers, processes done in a medical testing lab for example, purifying samples, mixing ingredients, capturing bacteria can be done with material about the size of a deck of cards.
Frey and her students have encapsulated pesticides into biodegradable nanofibers. This keeps them intact until needed
these nanofibers just might save a life, she said o
#Scientists Map 3d Atomic Structure of Brain Signaling Scientists have revealed never-before-seen details of how our brain sends rapid-fire messages between its cells.
#Researchers Apply Nanopore Gene Sequencing to Proteins University of Pennsylvania researchers have made strides toward a new method of gene sequencing a strand of DNA bases are read as they are threaded through a nanoscopic hole.
The Penn team technique stems from Drndic work on nanopore gene sequencing, which aims to distinguish the bases in a strand of DNA by the different percent of the aperture they each block as they pass through a nanoscopic pore.
Using the Drndic group silicon nitride nanopores which can be drilled to custom diameters, the research team set out to test their technique on GCN4-p1,
Nanosized materials such as nanowires offer unique properties that are completely distinct from those of the bulk materials.
However, one-dimensional nanostructures are difficult to synthesize. In an international cooperation Hisanori Shinohara from Nagoya University in Japan and his colleagues have developed a method that uses carbon nanotubes as a reaction vessel for the templated polymerization of linear-chain nanomaterials.
the primary component of natural gas, using a combination of semiconducting nanowires and bacteria. The research, detailed in the online edition of Proceedings of the National Academy of Sciences in August, builds on a similar hybrid system, also recently devised by Yang and his colleagues,
and thus create vapor nanobubbles, Zharov said. Fast expansion and collapse of these nanobubbles significantly increases the sound10-50 fold
and mechanically kills CTCS so that it requires just a few laser pulses or even a single pulse without harmful effects on normal cells.
and then eradicate the CTCS by well-timed therapy including nanobubble-based treatment. A similar approach can be used to monitor the effectiveness of the different types of treatment for cancer by counting the CTCS before, during and after therapy.
Zharov team has demonstrated already that laser-induced nanobubbles significantly decrease the level of CTCS, leading to a decrease in the chances of cancer spreading to other organs. urther study could determine
#Physicists Induce Stable Ferroelectricity in Strontium Titanate Nanosheets A team of physicists has defied conventional wisdom by inducing stable ferroelectricity in a sheet of strontium titanate only a few nanometers thick.
#Nanopore Method Improves Accuracy of DNA Sequencing EPFL scientists have developed a method that improves the accuracy of DNA sequencing up to a thousand times.
which uses nanopores to read individual nucleotides, paves the way for better-and cheaper-DNA sequencing.
However,"nanopore sequencing"is prone to high inaccuracy because DNA usually passes through very fast. EPFL scientists have discovered now a viscous liquid that slows down the process up to a thousand times,
In nanopore sequencing, DNA passes through a tiny pore in a membrane, much like a thread goes through a needle.
The team then created a nanopore on membrane, almost 3 nm wide. The next step was to dissolve DNA in a thick liquid that contained charged ions and
Finally, the team tested their system by passing known nucleotides, dissolved in the liquid, through the nanopore multiple times.
which is promising for sequencing with solid-state nanopores, "says Jiandong Feng. The scientists also predict that using high-end electronics
By combining ionic liquids with nanopores on molybdenum disulfide thin films, they hope to create a cheaper DNA sequencing platform with a better output.
-and nanopore technology can deliver
#Researchers Develop Stretchable, Transparent Conductor with Gold Nanomesh Researchers have discovered a new stretchable, transparent conductor that can be folded
or stretched and released, resulting in a large curvature or a significant strain, at least 10,000 times without showing signs of fatigue.
The work, published Monday in the Proceedings of the National Academy of Sciences, pairs gold nanomesh with a stretchable substrate made with polydimethylsiloxane
The substrate is stretched before the gold nanomesh is placed on it-a process known as"prestretching "-and the material showed no sign of fatigue
The gold nanomesh also proved conducive to cell growth, indicating it is a good material for implantable medical devices.
"We weaken the constraint of the substrate by making the interface between the Au (gold) nanomesh and PDMS slippery,
and expect the Au nanomesh to achieve superstretchability and high fatigue resistance, "they wrote in the paper."
"the Au nanomesh does not exhibit strain fatigue when it is stretched to 50 percent for 10,000 cycles."
that, along with the fact that the stretchability of gold nanomesh on a slippery substrate resembles the bioenvironment of tissue
or organ surfaces, suggest the nanomesh"might be implanted in the body as a pacemaker electrode,
using gold nanomesh, in a paper published in Nature Communications in January 2014. This work expands on that,
#New Nanosheet-Based Photonic crystal Changes Color in Response to Moisture LMU chemists have developed a photonic crystal from ultrathin nanosheets
which are extremely sensitive to moisture. hese photonic nanostructures change color in response to variations in local humidity.
It is this extreme sensitivity to local moisture that makes the nanostructure so interesting for use in ouchlessscreens. ontactless control is a particularly attractive option for next-generation positioning interfaces such as ticket machines or cash dispensers,
Unparalleled sensitivity and response time Photonic crystals are arranged periodically nanostructures which have the ability to reflect, guide and confine light.
Lotsch and her team have developed now photonic crystals based on nanosheets of phosphatoantimonic acid. The new nanomaterial is extremely moisture sensitive and at the same time chemically stable,
transparent and easy to fabricate into nanosheets. In comparison with other vapor sensors based on nanosheets, the new photonic architecture displays markedly increased response times, higher sensitivity and long-term stability. his unique combination of properties enables it to track
and color-code finger movements in real time, says Pirmin Ganter, who also works in Bettina Lotsch group.
which can be used to channel molecules into specific positions to create new nanostructures and materials.
resulting in amphiphilic building blocks in the form of a permanent nanostructure. The research is an example of how liquid crystal research is taking us from the nano to macro world,
#Self-Assembled DNA NANOSTRUCTURES Could Be used as Smart Drug-Delivery Vehicles Researchers from Aalto University have published an article in the recent Trends in Biotechnology journal.
The article discusses how DNA molecules can be assembled into tailored and complex nanostructures, and further, how these structures can find uses in therapeutics and bionanotechnological applications.
In the review article, the researchers outline the superior properties of DNA NANOSTRUCTURES, and how these features enable the development of efficient biological DNA-nanomachines.
Moreover, these DNA NANOSTRUCTURES provide new applications in molecular medicine, such as novel approaches in tackling cancer.
and simulate DNA NANOSTRUCTURES are extremely powerful and user friendly, and thus, researchers can easily construct their own DNA-objects for various uses.
Versatile DNA NANOSTRUCTURES The most important feature of a DNA-based nanostructure is its modularity. DNA structures can be fabricated with nanometer-precision,
Groundbreaking approach to create nanomaterials The research group lead by Professor Mauri Kostiainen works extensively with DNA NANOSTRUCTURES,
The researchers have coated DNA NANOSTRUCTURES with virus capsid proteins in order to significantly improve their transport to human cells;
When the light waves strike the nanotube antennas, an oscillating charge is created that travels through the rectifier devices.
Atomic layer chemical vapour deposition was used to in sulate the nanotubes with a coating of aluminum oxide.
Optically transparent thin calcium layers were deposited then using physical vapor deposition over the nanotube forest.
which is sufficient for ejecting electrons out of the carbon nanotube antennas upon the absorption of visible light Light in the form of oscillating waves interacts with nanotubes after going through the calcium-aluminum electrode.
The nanotube tips have metal-insulator-metal junctions that work as rectifiers. These rectifiers switch on and off at time intervals in the femtosecond range.
#Nanostructure Changes Colour When Finger Comes Near Touchscreens suffer from mechanical wear over time and are a transmission path for bacteria
scientists at Stuttgart Max Planck Institute for Solid State Research and LMU Munich have developed now nanostructures that change their electrical and even their optical properties as soon as a finger comes anywhere near them.
Taking phosphatoantimonate nanosheets as their basis the Stuttgart scientists then developed a photonic nanostructure which reacts to the moisture by changing colour. f this was built into a monitor,
the users would then receive visible feedback to their finger motionexplained Katalin Szendrei, also a doctoral student in Bettina Lotsch group.
To this end, the scientists created a multilayer sandwich material with alternating layers of ultrathin phosphatoantimonate nanosheets and silicon dioxide (Sio2) or titanium dioxide nanoparticles (Tio2.
But scientists had observed never before such a large colour change as they now have in the lab in Stuttgart. he colour of the nanostructure turns from blue to red
The sandwich structure consisting of phosphatoantimonate nanosheets and oxide nanoparticles is highly stable from a chemical perspective
It important, for example, that the nanostructures can be produced economically. To minimize wear, the structures still need to be coated with a protective layer
#Nanofiber Hydrogel Infused with Snake Venom May Quickly Stop Bleeding A nanofiber hydrogel infused with snake venom may be the best material to stop bleeding quickly, according to Rice university scientists.
The Rice researchers combined batroxobin with their synthetic, self-assembling nanofibers, which can be loaded into a syringe
more expensive devices The Minion is a handheld DNA-sequencing device developed by Oxford Nanopore,
It works by detecting individual DNA bases that pass through a nanopore a tiny hole in a membrane.
The team managed to synthesize a thin film made of densely packed aluminum oxide nanorods blended with molecules of a thrombolytic enzyme (urokinase-type plasminogen activator.
The new process starts by harvesting sunlight with a nanostructure of wires made from silicon and titanium:
photo-excited electron#hole pairs are generated in the silicon and titanium oxide nanowires, which absorb different regions of the solar spectrum.
We were able to uniformly populate our nanowire array with S. ovata using buffered brackish water with trace vitamins as the only organic component.
Putting pressure on the skin squeezes the nanotubes closer together and enables them to conduct electricity.
Jensen and her colleagues now report in the journal International Journal of Pharmaceutics that they have managed to use S. islandicus to construct a nanocapsule that can transport drugs safely through the stomach.
and graduate student Gopinath Rajadinakaran teamed up with UK-based Oxford Nanopore technologies to show that the company's Minion nanopore sequencer can sequence genes faster,
Oxford Nanopore, a company based in the UK released its new nanopore sequencer, and offered one to Graveley's lab. The nanopore sequencer,
called a Minion, works by feeding a single strand of DNA through a tiny pore.
The pore can only hold five DNA bases-the'letters'that spell out our genes-at a time.
Each combination creates a different electrical current in the nanopore. GGGGA makes a different current than AGGGG,
and then ran them through the Minion's nanopores. In this one experiment, they not only found 7,
"Graveley will speak about the research at the Oxford Nanopore Minion Community Meeting at the New york Genome Center on Dec 3.
#Umbrella-shaped diamond nanostructures make efficient photon collectors Standard umbrellas come out when the sky turns dark,
Inspired by recent work to enhance the luminescence from diamond nanopillar structures, a team of researchers in Japan has discovered that"umbrella-shaped"diamond nanostructures with metal mirrors on the bottom are more efficient photon collectors than their diamond nanostructure"cousins"of other shapes.
By tweaking the shape of the diamond nanostructures into the form of tiny umbrellas, researchers from Tokyo Institute of technology experimentally showed that the fluorescence intensity of their structures was three to five times greater than that of bulk diamond.
They report their results in the journal Applied Physics Letters, from AIP Publishing. To get started, the team formed the umbrella-shaped diamond nanostructures by using an original"bottom-up"fabrication technique that relies on selective and anisotropic growth through holes in a metal mask.
The metal mask also serves as a mirror that is self-aligned to the diamond nanostructures."
"Our umbrella-shaped nanostructure has an effect similar to a solid immersion lens, which reduces the chance of total reflection on its upper surface
and focuses the emitted light toward the'upside'of the structure, "explained Mutsuko Hatano, a professor in the Graduate school of Science and Engineering's Department of Physical Electronics at Tokyo Institute of technology.
The self-aligned mirror goes a step further to enhance the efficiency of collecting this light by reflecting it at the lower surface area of the nanostructure."
The significance of the team's discovery is that they've shown that the brighter fluorescence intensity of umbrella-shaped diamond nanostructures can be achieved by improving the photon collection efficiency of the nitrogen vacancy centers,
In terms of applications, the team's nanostructures may find use in highly sensitive magnetic sensors for making biological observations or within the computational science realm for quantum computing and cryptographic communications.
Next, Hatano and colleagues plan to pursue better control of the nanostructures'shape, as well as target a smoother surface by optimizing chemical vapor deposition growth conditions."
"Our goal now is to improve the nanostructures'photon collection efficiency, "she said.""We also plan to demonstrate quantum sensors--in particular,
This means that the enzymes inside a nanocapsule become active under exactly the right conditions
and substances from the surrounding area can enter the nanocapsule. In the resulting enzymatic reaction, the capsule's contents act on the incoming substrate
Palivan were able for the first time to integrate a modified membrane protein into an artificially produced nanocapsule, which opened only if it encountered corresponding ph values.
it naturally forms nanoribbons with these very smooth, armchair edges,"said Michael Arnold, an associate professor of materials science and engineering at UW-Madison."
"What's even more interesting is that these nanoribbons can be made to grow in certain directions on one side of the germanium crystal,
Black silicon consists of clusters of microscopic vertical pillars, or nanowires. Incoming light bouncing between individual silicon nanowires cannot escape the complex structure,
making the material darker than dark. Rather than laying down layers of black silicon on top of a clear backdrop,
and etched silicon nanowires in the areas between aluminum rings. Then they seeped a polymer between the silicon nanowire pillars.
After the plastic support solidified they etched away the silicon backing, leaving bull's-eye patterned black silicon embedded in supple plastic.
Black silicon consists of clusters of microscopic vertical pillars, or nanowires. Incoming light bouncing between individual silicon nanowires cannot escape the complex structure,
making the material darker than dark. Rather than laying down layers of black silicon on top of a clear backdrop,
and etched silicon nanowires in the areas between aluminum rings. Then they seeped a polymer between the silicon nanowire pillars.
After the plastic support solidified they etched away the silicon backing, leaving bull's-eye patterned black silicon embedded in supple plastic.
#New blood clot-busting nanocapsule promises immediate care for heart attacks When blood clots form in the aftermath of a heart attack or stroke,
A team of Australian scientists has developed a new approach that sees the drugs carried safely inside a nanocapsule, opening up the treatment to more patients and lessening the chance of side effects.
It sees an already approved clot-busting medication called urokinase (upa) loaded into a newly-developed type of nanocapsule.
Metal-oxide nanosheets were arranged on a single plane using a magnetic field. The nanosheets were fixed then in place using a process called light-triggered in-situ vinyl polymerization
where the light helped to stick them together within the polymer. The nanosheets create electrostatic resistance in one direction,
but not the other. The polymer"legs"not only lengthened and contracted at pace, allowing it to move forward,
To produce these nanostructures the researchers began by placing aluminum particles about 50 nanometers in diameter in a solution of sulfuric acid and titanium oxysulfate,
#Snake Venom-infused Hydrogel Stops Bleeding A nanofiber hydrogel infused with snake venom may be the best material to stop bleeding quickly, according to Rice university scientists.
The Rice researchers combined batroxobin with their synthetic, self-assembling nanofibers, which can be loaded into a syringe
Carbon nanotubes (CNTS) have electrical properties similar to those of conventional silicon transistors. In a head-to-head competition between a silicon transistor and a CNT transistor,"hands down, the CNT would win,
"Shulaker told Live Science.""It would be a better transistor; it can go faster; it uses less energy."
As such, the researchers developed a method to grow nanotubes in narrow grooves, guiding the nanotubes into alignment.
But there was another hurdle. While 99.5 percent of the nanotubes become aligned, a few stragglers will still be out of position.
To solve this problem, the researchers figured out that drilling holes at certain spots within the chip can ensure that even a chip with wayward tubes would work as expected.
while most CNTS have the properties of a semiconductor (like silicon), a few act just like an ordinary conducting metal,
As a remedy, Shulaker and his colleagues essentially"turn off"all the semiconducting CNTS, leaving huge jolts of current to circulate through the remaining conducting nanotubes.
The high current heats up and breaks down only the conducting nanotubes, which blow like nanoscale fuses,
Shulaker said. In 2013, the team built a CNT COMPUTER which they described in the journal Nature.
That computer, however, was slow and bulky, with relatively few transistors. Now, they have created a system for stacking memory and transistor layers,
The researchers used a copper oxide nanowire decorated with palladium nanoparticles to detect carbon monoxide a common industrial pollutant.
and scientists use nanowires fabricated from it to search for potential application in the microelectronics industry.
the copper oxide nanowire was made part of an electric circuit. The researchers detected carbon monoxide indirectly, by measuring the change in the resulting circuit electrical resistance in presence of the gas.
They found that copper oxide nanowires decorated with palladium nanoparticles show a significantly greater increase in electrical resistance in the presence of carbon monoxide than the same type of nanowires without the nanoparticles.
then deliver and deposit the palladium nanoparticles onto the surface of the nanowires in an evenly distributed manner.
This even dispersion of size selected nanoparticles and the resulting nanoparticles-nanowire interactions are crucial to get an enhanced electrical response.
segregated on distinct areas of the wafer where the nanowire sits. In other words, this system can be engineered to be able to detect multiple kinds of gases.
nanowire gas sensors will be cheaper and potentially easier to mass produce. The main energy cost in operating this kind of a sensor will be the high temperatures necessary to facilitate the chemical reactions for ensuring certain electrical response.
However, different nanowire-nanoparticle material configurations are currently being investigated in order to lower the operating temperature of this system."
"I think nanoparticle-decorated nanowires have a huge potential for practical applications as it is possible to incorporate this type of technology into industrial devices,
The researchers used a copper oxide nanowire decorated with palladium nanoparticles to detect carbon monoxide a common industrial pollutant.
and scientists use nanowires fabricated from it to search for potential application in the microelectronics industry.
the copper oxide nanowire was made part of an electric circuit. The researchers detected carbon monoxide indirectly, by measuring the change in the resulting circuit electrical resistance in presence of the gas.
They found that copper oxide nanowires decorated with palladium nanoparticles show a significantly greater increase in electrical resistance in the presence of carbon monoxide than the same type of nanowires without the nanoparticles.
then deliver and deposit the palladium nanoparticles onto the surface of the nanowires in an evenly distributed manner.
This even dispersion of size selected nanoparticles and the resulting nanoparticles-nanowire interactions are crucial to get an enhanced electrical response.
segregated on distinct areas of the wafer where the nanowire sits. In other words, this system can be engineered to be able to detect multiple kinds of gases.
nanowire gas sensors will be cheaper and potentially easier to mass produce. The main energy cost in operating this kind of a sensor will be the high temperatures necessary to facilitate the chemical reactions for ensuring certain electrical response.
However, different nanowire-nanoparticle material configurations are currently being investigated in order to lower the operating temperature of this system."
"I think nanoparticle-decorated nanowires have a huge potential for practical applications as it is possible to incorporate this type of technology into industrial devices,
This life saving treatment could be administered by paramedics in emergency situations without the need for specialised equipment as is currently the case. ee created a nanocapsule that contains a clot-busting drug.
The drug-loaded nanocapsule is coated with an antibody that specifically targets activated platelets, the cells that form blood clots,
thrombin (a molecule at the centre of the clotting process) breaks open the outer layer of the nanocapsule,
However, scientists have struggled to fabricate the material into ultra-narrow strips, called nanoribbons, that could enable the use of graphene in high-performance semiconductor electronics.
and is compatible with the prevailing infrastructure used in semiconductor processing. 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,
In addition, the nanoribbons must have smooth well-defined rmchairedges in which the carbon-carbon bonds are parallel to the length of the ribbon.
Researchers have fabricated typically nanoribbons by using lithographic techniques to cut larger sheets of graphene into ribbons.
and produces nanoribbons with very rough edges. Another strategy for making nanoribbons is to use a ottom-upapproach such as surface-assisted organic synthesis,
where molecular precursors react on a surface to polymerize nanoribbons. Arnold says surface-assisted synthesis can produce beautiful nanoribbons with precise, smooth edges,
but this method only works on metal substrates and the resulting nanoribbons are thus far too short for use in electronics.
To overcome these hurdles the UW-Madison researchers pioneered a bottom-up technique in which they grow ultra-narrow nanoribbons with smooth,
straight edges directly on germanium wafers using a process called chemical vapor deposition. In this process, the researchers start with methane,
which adsorbs to the germanium surface and decomposes to form various hydrocarbons. These hydrocarbons react with each other on the surface,
the graphene crystals naturally grow into long nanoribbons on a specific crystal facet of germanium. By simply controlling the growth rate and growth time,
the researchers can easily tune the nanoribbon width be to less than 10 nanometers. hat wee discovered is that
it naturally forms nanoribbons with these very smooth, armchair edges, Arnold says. he widths can be very,
so all the desirable features we want in graphene nanoribbons are happening automatically with this technique. he nanoribbons produced with this technique start nucleating,
Tiny treelike nanostructures in the scales of Morpho wings are known to be responsible for the butterfly brilliant iridescence.
director of Berkeley Lab Materials sciences Division and a world authority on metamaterials artificial nanostructures engineered with electromagnetic properties not found in nature. ur ultra-thin cloak now looks like a coat.
which uses nanopores to read individual nucleotides, paves the way for better and cheaper DNA sequencing.
In nanopore sequencing, DNA passes through a tiny pore in a membrane, much like a thread goes through a needle.
The team then created a nanopore on membrane, almost 3 nm wide. The next step was to dissolve DNA in a thick liquid that contained charged ions and
the team tested their system by passing known nucleotides, dissolved in the liquid, through the nanopore multiple times.
which is promising for sequencing with solid-state nanopores, says Jiandong Feng. The scientists also predict that using high-end electronics
By combining ionic liquids with nanopores on molybdenum disulfide thin films they hope to create a cheaper DNA sequencing platform with a better output.
and nanopore technology can deliver. n
#New graphene oxide biosensors may accelerate research of HIV and cancer drugs Longing to find a cure for cancer, HIV and other yet incurable diseases,
it naturally forms nanoribbons with these very smooth, armchair edges,"said Michael Arnold, an associate professor of materials science and engineering at UW-Madison."
"What's even more interesting is that these nanoribbons can be made to grow in certain directions on one side of the germanium crystal,
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