"which are single stranded-dna DNA or RNA molecules that bind to the receptors on the target organism's cell outer membrane,
and that is our world we can control cellulose-based materials one atom at a time. The Hinestroza group has turned cotton fibers into electronic components such as transistors and thermistors
Two of Hinestroza students created a hooded bodysuit embedded with insecticides using metal organic framework molecules,
can be manipulated at the nano level to build nanoscale cages that are the exact same size as the gas they are trying to capture. e wanted to harness the power of these molecules to absorb gases
#Silver-Ion Infused Lignin Nanoparticles Effectively Kill Bacteria Orlin Velev, an engineer at NC State engineer,
along with other researchers developed nanoscale particles that introduce silver antimicrobial potency to a biocompatible lignin core.
The silver-ion infused lignin nanoparticles, coated with a layer of charged polymer that aids the particles to stick to the target microbes,
can effectively destroy a wide range of harmful microorganisms, including E coli bacteria. When the targeted bacteria are wiped out by nanoparticles,
silver gets depleted from these particles. Upon disposal, the rest of the particles also degrade easily due to their biocompatible lignin core.
This greatly restricts the harm posed to the environment. People have been interested in using silver nanoparticles for antimicrobial purposes,
The nanoparticles infused with silver ions were utilized to attack Pseudomonas aeruginosa, disease-causing bacteria; E coli, a bacterial species that cause food poisoning;
We are now working to scale up the process to synthesize the particles under continuous flow conditions.
maybe they could use our particles as well, Brandl says. hen we came up with the idea to use our particles to remove toxic chemicals, pollutants,
or hormones from water, because we saw that the particles aggregate once you irradiate them with UV LIGHT. trap for ater-fearingpollutionthe researchers synthesized polymers from polyethylene glycol,
a widely used compound found in laxatives, toothpaste, and eye drops and approved by the Food and Drug Administration as a food additive,
in a solution hydrophobic pollutant molecules move toward the hydrophobic nanoparticles, and adsorb onto their surface,
the stabilizing outer shell of the particles is shed, and now nrichedby the pollutants they form larger aggregates that can then be removed through filtration, sedimentation,
according to the researchers, was confirming that small molecules do indeed adsorb passively onto the surface of nanoparticles. o the best of our knowledge,
it is the first time that the interactions of small molecules with preformed nanoparticles can be measured directly,
and molecules. he interactions we exploit to remove the pollutants are nonspecific, Brandl says. e can remove hormones, BPA,
we showed in a system that the adsorption of small molecules on the surface of the nanoparticles can be used for extraction of any kind,
mount and laser diode in a 3d-printed case, can image and size DNA molecules 50,000 times thinner than a human hair.
Information is sent then to a remote server in the researchersucla laboratory that measures the length of the DNA molecules.
The research, ield-Portable Smartphone Microscopy Platform for Wide-field Imaging and Sizing of Single DNA Molecules, was presented at the Optical Society Conference on Laser and Electro optics (CLEO) 2015 h
so when a substance containing the enzyme substrate the molecule the enzyme acts upon is added,
Lewis has conducted previously groundbreaking research in the 3d printing of functional materials including tissue constructs with embedded vasculature lithium-ion microbatteries and ultra-lightweight carbon-fiber epoxy materials s
In this process, electrons are released as a waste product. By providing an electrode for the microorganisms to donate their electrons to
the electrons can be harvested as electricity. Research has shown that plant-growth isn compromised by harvesting electricity,
so plants keep on growing while electricity is produced concurrently. Just imagine, a house with a roof full of plant/tree life powering your home.
00:15 GMT, 19 may 2015 Today wind turbines have colossal blades that spin at speeds of more than 200mph (320 km h).
The Scio handheld spectrometer instantly analyzes foods and pharmaceuticals at a molecular level; a quick scan provides nutritional info,
whereby opaque, charged particles (approx. 1 micron in size) are attracted to electrodes that posses an opposite charge.
Thus the electric field created between the two electrodes causes the flow of these particles back and forth.
The interaction of incoming light with each electrophoretic pixel (two electrodes) depends on the position of the particles relative to these electrodes,
In reference to these, the device uses electrophoresis to attract charged color particles to the top transparent electrode to preadtheir color,
The device is filled with dual-colour, dual-particle colloidal dispersion inks. It is common in e-ink displays to use sub-pixels (i e. multiple electrodes to do some fancy charged transport),
#Flavour delivery particle can cut sugar by half and is cheaper than sugar Developed by inventor
a carrier particle is coated with sugar molecules using non-covalent bonding. This increases the surface area meaning the same sweetness can be achieved using less sugar.
"The carrier particle has been approved for use in food and beverage applications and requires no regulatory process.
The carrier particle is so effective in cutting out sugar that the end product while the same size in terms of volume-can be significantly lighter that the original product,
while a second generation particle called S2 can be used in beverages. The R&d team is looking into using the technology for salt reduction,
while a carrier particle for Xylitol, Malitol and Erithrytol has also been developed
#Single-sourced kit for producing and filling sensitive products The company product portfolio for these segments is so comprehensively diverse that Krones can justifiably lay claim to being a genuine one-stop shop.
and those featuring large chunks or high particle concentrations, it will be exhibiting two dosing units:
and participated in the Y Combinator startup accelerator program. Farmlogs raised $10 million in Series B about six months ago, bringing its total institutional funding to $15 million thus far.
It cuts emissions by increasing the amount of oxygen molecules and decreasing the amount of nitrogen molecules in the combustion chamber.
As air from the atmosphere passes through the vehicle air filter, it then passes unobstructed through the converter ring located in the air intake duct.
More oxygen in the combustion chamber also results in a more complete burn of particulate matter (PM) of 2. 5 micrometers or less, also known as fine particles.
low energy solution to grow food in parts of the world where this was not previously possible.
Scale drives cost reduction for storage We are already witnessing the impact of manufacturing scale on cost for lithium-ion batteries being bid into the electricity market.
which uses molecules from algae or other microorganisms that respond to light, or creates molecules to do so,
and put them into nerve cells to transform them so that they can receive light. As well as helping blind people see,
by inserting the right molecules and shining light at them. The light wakes up the right proteins, allowing messages to flow through and then bringing out the same behaviour in cells around them n
The key to its success in replicating a sunny sky uses nanostructured materials to scatter light from LEDS in the same way tiny particles scatter sunlight in the atmosphere so-called Rayleigh scattering.
Light was recognized also in the Nobel prize category of Chemistry last year for light-based microscopy tools that use a few tricks to sense the presence of a single molecule.
in order to control the fluorescence of individual molecules to view them in high detail. By turning the light emitted from the molecules on or off,
the scientists could reconstruct the location of the molecules at the nanometer scale. Here how it works:
a fraction of fluorescent molecules or proteins is excited first by a weak light pulse. Then after their emission fades, another subgroup of fluorescent molecules are excited.
This cycle of on and off continues, and then the images are processed and superimposed to form a high-resolution map of individual proteins.
The ability to peer into the nanoworld of living cells to observe, for example, how proteins aggregate in the earliest stages of diseases like Alzheimer
Understanding disease progression at the single-molecule level could help identify when early intervention might be advantageous.
In my own work as a chemistry researcher, my group invented a laser the size of a virus particle,
and receive data with high bandwidths as well as to detect trace molecules or bio-agents. Construction of our nanolaser required precise control over the shape and location of the adjacent gold nanoparticles.
and environmentally benign method to combat bacteria by engineering nanoscale particles that add the antimicrobial potency of silver to a core of lignin,
North carolina State university engineer Orlin Velev and colleagues show that silver-ion infused lignin nanoparticles, which are coated with a charged polymer layer that helps them adhere to the target microbes,
The remaining particles degrade easily after disposal because of their biocompatible lignin core, limiting the risk to the environment."
says that the particles could be the basis for reduced risk pesticide products with reduced cost and minimized environmental impact."
We are now working to scale up the process to synthesize the particles under continuous flow conditions
and environmentally benign method to combat bacteria by engineering nanoscale particles that add the antimicrobial potency of silver to a core of lignin,
North carolina State university engineer Orlin Velev and colleagues show that silver-ion infused lignin nanoparticles, which are coated with a charged polymer layer that helps them adhere to the target microbes,
The remaining particles degrade easily after disposal because of their biocompatible lignin core, limiting the risk to the environment."
says that the particles could be the basis for reduced risk pesticide products with reduced cost and minimized environmental impact."
We are now working to scale up the process to synthesize the particles under continuous flow conditions."
and purification processes that can take days-the new approach generates the particles in a few hours
you can pretty much make these particles at home, "Pan said.""You just mix them together and cook it for a few minutes,
or fluorescing molecules to help detect them in the body. The nanoparticles are coated with polymers that fine-tune their optical properties and their rate of degradation in the body.
"So, these tiny particles are camouflaged kind of, I would say; they are hiding from the human immune system."
"We think we coated this particle with a specific polymer and with specific drug-loading
We use spectroscopy to confirm the formulation as well as visualize the delivery of the particles and drug molecules."
In further experiments, the researchers found they could alter the infusion of the particles into melanoma cells by adjusting the polymer coatings.
so you can do multidrug therapy with the same particles.""""By using defined surface chemistry,
we can change the properties of these particles, "Pan said.""We can make them glow at a certain wavelength
Techconnect is the world's largest accelerator for industry-vetted emerging-technologies ready for commercialization June 11th, 2015synthesis of Special Nanoparticles in Iran to Increase MRI Contrast June 11th,
The electromagnetic field is likely affecting the interaction between the nanomaterial and the drug molecules, Borgens said."
and retains the remaining drug molecules.""For each different drug the team would need to find the corresponding optimal electromagnetic field for its release,
"This collaborative team was one of two to first demonstrate polaritons in single-atom layers of carbon called graphene.
In graphene, infrared light launches ripples through the electrons at the surface of this metallike material called surface plasmon polaritons that the researchers were able to control using a simple electrical circuit.
Columbia engineers and colleagues create bright, visible light emission from one-atom thick carbon June 15th, 2015research partnerships Lancaster University revolutionary quantum technology research receives funding boost June 22nd, 2015fabricating inexpensive, high-temp SQUIDS for future electronic devices June 22nd,
which some of the metallic ions are placed. The size and shape of the pores are very effective in the selective sorption of the ions.
Based on the positive results the nanosorbent can be used in various industries such as foodstuff and petroleum to detect
News and information Samsung's New Graphene technology Will Double Life Of Your Lithium-Ion Battery July 1st,
2015announcements Samsung's New Graphene technology Will Double Life Of Your Lithium-Ion Battery July 1st, 2015researchers from the UCA, key players in a pioneering study that may explain the origin of several digestive diseases June 30th,
2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers Samsung's New Graphene technology Will Double Life Of Your Lithium-Ion Battery July 1st,
Here, we show that lignin nanoparticles infused with silver ions and coated with a cationic polyelectrolyte layer form a biodegradable and green alternative to silver nanoparticles.
The polyelectrolyte layer promotes the adhesion of the particles to bacterial cell membranes and, together with silver ions, can kill a broad spectrum of bacteria,
including Escherichia coli, Pseudomonas aeruginosa and quaternary-amine-resistant Ralstonia sp. Ion depletion studies have shown that the bioactivity of these nanoparticles is limited time because of the desorption of silver ions.
High-throughput bioactivity screening did not reveal increased toxicity of the particles when compared to an equivalent mass of metallic silver nanoparticles or silver nitrate solution.
Our results demonstrate that the application of green chemistry principles may allow the synthesis of nanoparticles with biodegradable cores that have higher antimicrobial activity and smaller environmental impact than metallic silver nanoparticles.
and environmentally benign method to combat bacteria by engineering nanoscale particles that add the antimicrobial potency of silver to a core of lignin,
NC State engineer Orlin Velev and colleagues show that silver-ion infused lignin nanoparticles, which are coated with a charged polymer layer that helps them adhere to the target microbes,
The remaining particles degrade easily after disposal because of their biocompatible lignin core, limiting the risk to the environment."
says that the particles could be the basis for reduced risk pesticide products with reduced cost and minimized environmental impact."
We are now working to scale up the process to synthesize the particles under continuous flow conditions."
harnessing its output for imaging applications that make microscopic particles appear huge.""The device makes an object super-visible by enlarging its optical appearance with this super-strong scattering effect,
The one-atom-thick carbon sheets could revolutionize the way electronic devices are manufactured and lead to faster transistors, cheaper solar cells, new types of sensors and more efficient bioelectric sensory devices.
The method is based on an ion implantation technique, a process in which ions are accelerated under an electrical field and smashed into a semiconductor.
The impacting ions change the physical, chemical or electrical properties of the semiconductor. In a paper published this week in the journal Applied Physics Letters, from AIP Publishing,
the researchers describe their work, which takes graphene a step closer to commercial applications in silicon microelectronics."
"Our work shows that the carbon ion implantation technique has great potential for the direct synthesis of wafer-scale graphene for integrated circuit technologies."
carrying electrons with almost no resistance even at room temperature, a property known as ballistic transport. Graphene's unique optical, mechanical and electrical properties have lead to the one-atom-thick form of carbon being heralded as the next generation material for faster, smaller, cheaper and less power-hungry electronics."
"In silicon microelectronics, graphene is a potential contact electrode and an interconnection material linking semiconductor devices to form the desired electrical circuits,
"Kim's method relies on ion implantation, a microelectronics-compatible technique normally used to introduce impurities into semiconductors.
In the process, carbon ions were accelerated under an electrical field and bombarded onto a layered surface made of nickel, silicon dioxide and silicon at the temperature of 500 degrees Celsius.
Kim explained that the activation annealing temperature could be lowered by performing the ion implantation at an elevated temperature.
According to Kim, the ion implantation technique also offers finer control on the final structure of the product than other fabrication methods,
as the graphene layer thickness can be determined precisely by controlling the dose of carbon ion implantation.""Our synthesis method is controllable and scalable,
#Scientists print low cost radio frequency antenna with graphene ink (Nanowerk News) Scientists have moved graphene--the incredibly strong and conductive single-atom-thick sheet of carbon--a significant step along the path
which enabled efficient radio frequency radiation, was one of the most exciting aspects of the experiment,
#Hematite're-growth'smoothes rough edges for clean energy harvest (Nanowerk News) Finding an efficient solar water splitting method to mine electron-rich hydrogen for clean
The team reevaluated hematite surface features using a synchrotron particle accelerator at the Lawrence Berkeley National Laboratory.
a one-atom thick form of carbon. Tunneling electrons from a scanning tunneling microscope tip excites phonons in graphene.
The image shows the graphene lattice with blue arrows indicating the motion direction of that carbon atoms for one of the low energy phonon modes in graphene.
Image: Wyrick/NIST) They report their findings in the June 19, 2015, issue of Physical Review Letters("Strong Asymmetric Charge Carrier Dependence in Inelastic Electron Tunneling Spectroscopy of Graphene Phonons").
"Carbon atoms in graphene sheets are arranged in a regularly repeating honeycomb-like latticea two-dimensional crystal. Like other crystals,
the forces that bond the atoms together cause the atoms to vibrate and spread the energy throughout the material,
One way to measure these tiny vibrations is to bounce electrons off the material and measure how much energy the electrons have transferred to the vibrating atoms.
But it's difficult. The technique, called inelastic electron tunneling spectroscopy, elicits only a small blip that can be hard to pick out over more raucous disturbances."
"Researchers are faced frequently with finding ways to measure smaller and smaller signals, "says NIST researcher Fabian Natterer,
such as that supplied by the electrons in a scanning tunneling microscope (STM). To filter the phonons'signal from other distractions,
NIST researchers used their STM to systematically alter the number of electrons moving through their graphene device.
As the number of electrons were varied, the unwanted signals also varied in energy, but the phonons remained fixed at their characteristic frequency.
Averaging the signals over the different electron concentrations diluted the annoying disturbances, but reinforced the phonon signals.
which become filled with electrons and stop the phonons from vibrating when we switch from hole to electron doping."
"The team notes that this effect is similar to resonance-induced effects seen in small molecules.
They speculate that if the same effect were happening here, it could mean that the systemgraphene
and STMIS mimicking a giant molecule, but say that they still don't have a firm theoretical foundation for
The movement of electrons caused by friction was able to generate enough energy to power the lights
Thanks to their low weight, high energy density and slower loss of charge when not in use, LIBS have become the preferred choice for consumer electronics.
Lithium-ion cells with cobalt cathodes hold twice the energy of a nickel-based battery and four times that of lead acid.
and highly anisotropic directionally dependent proton conducting behaviors in porous CB 6 for fuel cell electrolytes.
It is possible for this lithium ion conduction following porous CB 6 to be safer than existing solid lithium electrolyte-based organic-molecular porous-materials utilizing the simple soaking method
The new battery is built from pumpkin-shaped molecules called cucurbit 6 uril (CB 6) which are organized in a honeycomb-like structure.
The molecules have an incredibly thin 1d-channel, only averaging 7. 5 Å a single lithium ion is 0. 76 Å,
or. 76 x 10-10 m that runs through them. The physical structure of the porous CB 6 enables the lithium ions to battery to diffuse more freely than in conventional LIBS
and exist without the separators found in other batteries. In tests the porous CB 6 solid electrolytes showed impressive lithium ion conductivity.
To compare this to existing battery electrolytes, the team used a measurement of the lithium transference number (tli)
In a nanoscale world and that is our world we can control cellulose-based materials one atom at a time.
Two of Hinestrozas students created a hooded bodysuit embedded with insecticides using metal organic framework molecules,
We wanted to harness the power of these molecules to absorb gases and incorporate these MOFS into fibers,
and environmentally benign method to combat bacteria by engineering nanoscale particles that add the antimicrobial potency of silver to a core of lignin,
"NC State engineer Orlin Velev and colleagues show that silver-ion infused lignin nanoparticles, which are coated with a charged polymer layer that helps them adhere to the target microbes,
The remaining particles degrade easily after disposal because of their biocompatible lignin core, limiting the risk to the environment.
says that the particles could be the basis for reduced risk pesticide products with reduced cost and minimized environmental impact.
We are now working to scale up the process to synthesize the particles under continuous flow conditions s
harnessing its output for imaging applications that make microscopic particles appear huge.""The device makes an object super-visible by enlarging its optical appearance with this super-strong scattering effect,
The one-atom-thick carbon sheets could revolutionize the way electronic devices are manufactured and lead to faster transistors, cheaper solar cells, new types of sensors and more efficient bioelectric sensory devices.
The method is based on an ion implantation technique, a process in which ions are accelerated under an electrical field and smashed into a semiconductor.
The impacting ions change the physical, chemical or electrical properties of the semiconductor. In a paper published this week in the journal Applied Physics Letters("Wafer-scale synthesis of multi-layer graphene by high-temperature carbon ion implantation"),from AIP Publishing
the researchers describe their work, which takes graphene a step closer to commercial applications in silicon microelectronics.
Wafer-scale (4 inch in diameter) synthesis of multi-layer graphene using high-temperature carbon ion implantation on nickel/Sio2/silicon.
Image: J. Kim/Korea University, Korea)" For integrating graphene into advanced silicon microelectronics, large-area graphene free of wrinkles, tears and residues must be deposited on silicon wafers at low temperatures,
"Our work shows that the carbon ion implantation technique has great potential for the direct synthesis of wafer-scale graphene for integrated circuit technologies."
carrying electrons with almost no resistance even at room temperature, a property known as ballistic transport. Graphene's unique optical, mechanical and electrical properties have lead to the one-atom-thick form of carbon being heralded as the next generation material for faster, smaller, cheaper and less power-hungry electronics."
"In silicon microelectronics, graphene is a potential contact electrode and an interconnection material linking semiconductor devices to form the desired electrical circuits,
"Kim's method relies on ion implantation, a microelectronics-compatible technique normally used to introduce impurities into semiconductors.
In the process, carbon ions were accelerated under an electrical field and bombarded onto a layered surface made of nickel, silicon dioxide and silicon at the temperature of 500 degrees Celsius.
Kim explained that the activation annealing temperature could be lowered by performing the ion implantation at an elevated temperature.
According to Kim, the ion implantation technique also offers finer control on the final structure of the product than other fabrication methods,
as the graphene layer thickness can be determined precisely by controlling the dose of carbon ion implantation.""Our synthesis method is controllable and scalable,
maybe they could use our particles as well, Brandl says. hen we came up with the idea to use our particles to remove toxic chemicals, pollutants,
or hormones from water, because we saw that the particles aggregate once you irradiate them with UV LIGHT.
A trap for ater-fearingpollution The researchers synthesized polymers from polyethylene glycol, a widely used compound found in laxatives, toothpaste,
in a solution hydrophobic pollutant molecules move toward the hydrophobic nanoparticles, and adsorb onto their surface,
the stabilizing outer shell of the particles is shed, and now nrichedby the pollutants they form larger aggregates that can then be removed through filtration, sedimentation,
The fundamental breakthrough, according to the researchers, was confirming that small molecules do indeed adsorb passively onto the surface of nanoparticles. o the best of our knowledge,
it is the first time that the interactions of small molecules with preformed nanoparticles can be measured directly,
and molecules. he interactions we exploit to remove the pollutants are nonspecific, Brandl says. e can remove hormones, BPA,
we showed in a system that the adsorption of small molecules on the surface of the nanoparticles can be used for extraction of any kind,
and one oxygen atom) can be polymerized to form polycarbonates in reactions that use special catalysts.
Some of the amphiphilic polycarbonates made by this method are able to aggregate into particles or micelles in a self-organization process.
Shining a light pulse on to the cavity excited the dye atoms into emitting light in a tightly focused beam.
atoms into graphene. The compounds exhibit an intense blue fluorescence and, consequently, are of interest for use as organic LEDS (OLEDS).
Within the study, boron atoms specifically replaced the two meso carbon atoms within the PAH, which resulted in its ability to transform a near-infrared dye into a blue luminophore.
Boron Customized organic molecules enable the production of lightweight, mechanically flexible electronic components adapted to individual applications, such as LEDS.
the color of fluorescence shifts into the highly desirable, blue spectral range and the capacity to transport electrons is improved substantially.
researchers have become much more capable in their abilities to modify the inner structures by embedding foreign atoms within the carbon network."
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