#Liver-like device via 3-D printer (Phys. org) Nanoengineers at the University of California San diego have developed a 3-D-printed device inspired by the liver to remove dangerous toxins
The device which is designed to be used outside the body much like dialysis uses nanoparticles to trap pore-forming toxins that can damage cellular membranes
Nanoparticles have already been shown to be effective at neutralizing pore-forming toxins in the blood
but if those nanoparticles cannot be digested effectively they can accumulate in the liver creating a risk of secondary poisoning especially among patients who are already at risk of liver failure.
To solve this problem a research team led by nanoengineering professor Shaochen Chen created a 3-D-printed hydrogel matrix to house nanoparticles forming a device that mimics the function of the liver by sensing attracting
The concept of using 3-D printing to encapsulate functional nanoparticles in a biocompatible hydrogel is said novel Chen.
-and nanoscale resolution required to print tissues that mimic nature's fine-grained details including blood vessels
Nanosponge decoy fights superbug infections More information: Paper: Bio-inspired detoxification using 3d printed hydrogel nanocomposites www. nature. com/ncomms/2014/140full/ncomms4774. htm h
#Flexible supercapacitor raises bar for volumetric energy density Scientists have taken a large step toward making a fiber-like energy storage device that can be woven into clothing
The scientists report their research in Nature Nanotechnology. Dai a professor of macromolecular science and engineering at Case Western Reserve and a co-author of the paper explained that most supercapacitors have high power density but low energy density
A solution containing acid-oxidized single-wall nanotubes graphene oxide and ethylenediamine which promotes synthesis and dopes graphene with nitrogen is pumped through a flexible narrow reinforced tube called a capillary column and heated in an oven for six hours.
Sheets of graphene one to a few atoms thick and aligned single-walled carbon nanotubes self-assemble into an interconnected prorous network that run the length of the fiber.
Self Cleaning Clothing With Hydrophobic Nanotechnology as the Kickstarter says might be a vague enough claim to cause some concern
It turns out that the best surface structure for repelling beetles has tiny folds just half a nanometer in length and half a nanometer in height.
I'd rather just use nanotech to keep the body i have right now alive for eternity!!!
With a wavelength of 550 nanometers typically used that means most microscopes can only see about 0. 2 micrometers (or about the width of a bacterium) according to Abbe.
A small molecule can be just one nanometer long. With the help of these nanoscopes researchers have been able to visualize molecules such as those created in synapses in the brain.
They can also track protein buildup in numerous degenerative diseases such as Alzheimer s or Parkinson s. In fact nanoscopy can even be used to visualize the individual proteins in fertilized eggs.
while the second beam suppresses all other fluorescence except for that in a nanometer-sized area.
Only the nanometer-sized volume is registered by the microscope and a brightly lit image with better resolution than 0. 2 micrometers is revealed.
and Nanosystems explains:##Previously these elements wobbled as they moved forward and they were less efficient
#The scientists used a light-sensitive biocompatible epoxy resin in which they incorporated magnetic nanoparticles. In the first part of the curing stage they exposed a thin layer of this material to a magnetic field.
This field magnetised the nanoparticles leading to a particle re-arrangement in form of parallel lines.
#advanced materials and nanotechnology;##energy and its storage. Robotics infographicthe IPO report also looks at the rate of robotics patents compared to other innovation patents on a country basis
and nanorobotics where often all the robots are steered by the same control signal (IROS 2012 paper).
or nanorobots our robots are programmed to behave as simple remote control cars and tuned to listen to the same frequency.
Nanoengineers at the University of California, San diego have made a splash in trying to overcome this obstacle.
Now, researchers led by Harish Bhaskaran, a nanoengineering expert at the University of Oxford in the United kingdom,
They then placed a nanoscale patch of GST atop this waveguide. To write data in this layer,
potentially offering an easy way to monitor the assembly of nanoparticles, or to study how mass is distributed within a cell.
the device can attain a resolution of about 150 nanometers. The researchers also calculated that
they could improve the resolution to about 4 nanometers. High-resolution mass imagingthis advance could help spur the development of a technique known as inertial imaging,
The new MIT technology could enable very high-speed inertial imaging as cells flow through a channel. he suspended nanochannel technology pioneered by the Manalis group is remarkable
as they flow through the nanochannels. analislab is also using the new technique to study how cellsdensities change as they pass through constrictions.
It solves the problem of trying to integrate two disparate processes with nanometer transistors and micron optics.?
which rely on the creation of precise kinds of nanoscale textures on the surface, this system makes use of the tiny irregularities that naturally exist on a metal surface
The grain boundary is extremely narrow, on the order of a few nanometers. Therefore, it is extremely difficult to characterize
It may be used to create alloy nanomaterials for solar cells, heterogeneous catalysts for a variety of chemical reactions, and energy storage devices."
and morphology of the alloy nanoparticles on surfaces,"said Dr. Grant Johnson, a PNNL physical chemist who led the study.
The team created the nanoparticles using magnetron sputtering and gas aggregation. They placed them on a surface using ion soft landing techniques devised at PNNL.
The result is a layer of bare nanoparticles made from two different metals that is free of capping layers, residual reactants,
The result is bare ionic metal nanoparticles that are about 4 to 10 nanometers across. The mass spectrometer filters the ionic particles,
rather than homogeneous nanoparticles with the desired shape. Further, the particles lack a capping layer.
At relatively short time frames on flat surfaces, the nanoparticles bind randomly. Leave the process running longer and a continuous film forms.
Stepped surfaces result in the nanoparticles forming linear chains on the step edges at low coverage.
While this work focuses on single nanoparticles, the final result is extended an array with implications that stretch from the atomic scale to the mesoscale."
New nanomaterials will boost renewable energy More information:""Soft Landing of Bare Nanoparticles with Controlled Size, Composition, and Morphology."
"Nanoscale 7: 3491-3503. DOI: 10.1039/c4nr06758 8
#Probabilistic programming does in 50 lines of code what used to take thousands Most recent advances in artificial intelligenceuch as mobile apps that convert speech to textre the result of machine learning, in
which computers are turned loose on huge data sets to look for patterns. To make machine-learning applications easier to build,
and Technology (KAIST) has developed a hyper-stretchable elastic-composite energy harvesting device called a nanogenerator. Flexible electronics have come into the market
and hyper-stretchable elastic-composite generator (SEG) using very long silver nanowire-based stretchable electrodes. Their stretchable piezoelectric generator can harvest mechanical energy to produce high power output (4 V) with large elasticity (250%)and excellent durability (over 104 cycles.
#Lab-on-a-chip device detects cryptosporidium in as little as 10 minutes For a healthy individual, an infection of Cryptosporidium parvum may mean nothing more than a few days of bad diarrhea.
Recently, researchers at Fudan University's Institute of Biomedical sciences in Shanghai developed a lab-on-a-chip device that can rapidly diagnose cryptosporidium infections from just a finger prickotentially bringing point-of-care diagnosis to at-risk areas in rural China
which could improve the efficacy of existing chemotherapy drugs.""It is important to understand how fork reversal
form new nanocrystals that are attached loosely to the seed surface. Fluids, used in the process, shear the weakly tethered new crystals from the seed crystal surface allowing the surfaces to be further available for a repeat process
creating an electrode made of nanoparticles with a solid shell, and a olkinside that can change size again and again without affecting the shell.
The use of nanoparticles with an aluminum yolk and a titanium dioxide shell has proven to be he high-rate champion among high-capacity anodes
That where the idea of using confined aluminum in the form of a yolk-shell nanoparticle came in.
In the nanotechnology business there is a big difference between what are called ore-shelland olk-shellnanoparticles.
which are about 50 nanometers in diameter, naturally have oxidized an layer of alumina (Al2o3). e needed to get rid of it,
which reacts with titanium oxysulfate to form a solid shell of titanium hydroxide with a thickness of 3 to 4 nanometers.
That alliance also has led to important advances in the use of quantum dot materials to create highly efficient solar cells and sodium batteries,
Instead, silicon nanopillars are arranged precisely into a honeycomb pattern to create a etasurfacethat can control the paths and properties of passing light waves.
a microdevices engineer at JPL and co-author of a new Nature Nanotechnology study describing the devices. urrently,
The device nanofabrication was performed in the Kavli Nanoscience Institute at Caltech. JPL is a division of Caltech.
Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission, Nature Nanotechnology (2015;
#Pillared Graphene structures Gain Strength, Toughness and Ductility In a newly published study, scientists from Rice university reveal that putting nanotube pillars between sheets of graphene could create hybrid structures with a unique balance of strength, toughness
Carbon nanomaterials are common now as flat sheets, nanotubes and spheres, and theye being eyed for use as building blocks in hybrid structures with unique properties for electronics,
the way the atoms are arranged can influence all those properties. ome labs are actively trying to make these materials or measure properties like the strength of single nanotubes and graphene sheets,
and quantitatively predict the properties of hybrid versions of graphene and nanotubes. These hybrid structures impart new properties
and functionality that are absent in their parent structures graphene and nanotubes. To that end the lab assembled three-dimensional computer models of illared graphene nanostructures, akin to the boron nitride structures modeled in a previous study to analyze heat transfer between layers. his time we were interested in a comprehensive understanding of the elastic and inelastic properties
of 3-D carbon materials to test their mechanical strength and deformation mechanisms, Shahsavari said. e compared our 3-D hybrid structures with the properties of 2-D stacked graphene sheets and 1-D carbon nanotubes.
Turning the nanotubes in a way that forced wrinkles in the graphene sheets added further flexibility and shear compliance,
That leads to the notion the hybrids can be tuned to fail under particular circumstances. his is the first time anyone has created such a comprehensive atomistic ensto look at the junction-mediated properties of 3-D carbon nanomaterials
Shahsavari is an assistant professor of civil and environmental engineering and of materials science and nanoengineering at Rice.
Working with brick-like blocks of gold nanoantennas, the Berkeley researchers fashioned a kin cloakbarely 80 nanometers in thickness,
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.
and is a member of the Kavli Energy Nanosciences Institute at Berkeley (Kavli ENSI), is the corresponding author of a paper describing this research in Science.
This short video clip shows how the activation of a metasurface cloak made from an ultrathin layer of nanoantennas can render a 3d object invisible.
however, allow us to manipulate the phase of a propagating wave directly through the use of subwavelength-sized elements that locally tailor the electromagnetic response at the nanoscale,
300 square microns in area that was wrapped conformally in the gold nanoantenna skin cloak, the light reflected off the surface of the skin cloak was identical to light reflected off a flat mirror,
The cloak can be turned nor ffsimply by switching the polarization of the nanoantennas. phase shift provided by each individual nanoantenna fully restores both the wavefront
Working with brick-like blocks of gold nanoantennas, the Berkeley researchers fashioned a kin cloakbarely 80 nanometers in thickness,
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.
and is a member of the Kavli Energy Nanosciences Institute at Berkeley (Kavli ENSI), is the corresponding author of a paper describing this research in Science.
however, allow us to manipulate the phase of a propagating wave directly through the use of subwavelength-sized elements that locally tailor the electromagnetic response at the nanoscale,
300 square microns in area that was wrapped conformally in the gold nanoantenna skin cloak, the light reflected off the surface of the skin cloak was identical to light reflected off a flat mirror,
The cloak can be turned nor ffsimply by switching the polarization of the nanoantennas. phase shift provided by each individual nanoantenna fully restores both the wavefront
a UCLA professor of physics and astronomy and a member of UCLA California Nanosystems Institute, is published September 21 in the online edition of the journal Nature Materials.
#Bioadhesive Nanoparticles Help Protect Your Skin From the Sun Dermatologists from Yale university have developed a new sunscreen made with bioadhesive nanoparticles that doesn penetrate the skin,
made with bioadhesive nanoparticles, that stays on the surface of the skin. Results of the research will appear in the September 28 online edition of the journal Nature Materials. e found that
and our nanoparticles are so adhesive that they don even go into hair follicles, which are relatively open.
the researchers developed a nanoparticle with a surface coating rich in aldehyde groups, which stick tenaciously to the outer skin layer.
The nanoparticle hydrophilic layer essentially locks in the active ingredient, a hydrophobic chemical called padimate O. Some sunscreen solutions that use larger particles of inorganic compounds, such as titanium dioxide or zinc oxide,
By using a nanoparticle to encase padimate O, an organic chemical used in many commercial sunscreens,
#Nanoscientists Improve the Stability of Perovskite Solar cells UCLA researchers have taken a step towards next-generation perovskite solar cells by using a metal oxide andwich.
UCLA professor Yang Yang, member of the California Nanosystems Institute, is renowned a world innovator of solar cell technology
The study was published online in the journal Nature Nanotechnology. Postdoctoral scholar Jingbi You and graduate student Lei Meng from the Yang Lab were the lead authors on the paper. here has been much optimism about perovskite solar cell technology,
which rely on the creation of precise kinds of nanoscale textures on the surface, this system makes use of the tiny irregularities that naturally exist on a metal surface
Now researchers at the Royal Melbourne Institute of technology (RMIT) in Australia have built on their previous work developing ultra-fast nanoscale memories.
The researchers believe that these nanoscale memory devices promise a future of artificial intelligence network that could enable a so-called bionic brain.
The researchers believe that this new property could lead to a new generation of superconducting nanoscale devices.
believe this latest work could usher in the fabrication of nanoscale superconducting quantum interference devices and single-electron superconductor quantum dots u
The french team wrote this week this week in Nature Nanotechnology. Graphene could also help bring about the realization of a simplified ampere, one of the seven SI base units.
#Peering Into Nanoparticles One at a time Reveals Hidden World Imagine you could single out individuals in a large group
This is essentially what researchers at Chalmers University in Sweden have been able to achieve with a new microscopy technique that is capable of looking at a single nanoparticle rather than just a mass of them all clumped together. e were able to show that you gain deeper insights into the physics
of how nanomaterials interact with molecules in their environment by looking at the individual nanoparticle as opposed to looking at many of them at the same time,
The researchers applied the experimental spectroscopy technique to examine hydrogen absorption in single palladium nanoparticles.
despite various nanoparticles having the same size and shape, they would absorb hydrogen at pressures as different as 40 millibars.
While others have been able to image single nanoparticles previously, those efforts came at a rather high cost of heating the nanoparticles up,
or impacting them in some other way that eliminates the ability to observe them accurately. hen studying individual nanoparticles you have to send some kind of probe to ask the particle hat are you doing?
said Langhammer. his usually means focusing a beam of high-energy electrons or photons or a mechanical probe onto a very tiny volume.
so that it is possible to study nanoparticles one at a time in their actual environments. This ability to observe nanoparticles outside the lab could prove to be a key development for studies on the impact of nanoparticles in the environment e
#An Electric car Heater Can't Be Too Thin or Too Economical Just about every electrical device seems to want to slim down to a thin filmf possible,
The idea is to mix nanotubes into a fluid to create a slurry, lay down a film just a few micrometers thick on a suitable substrate,
The heat-generating resistance comes mainly from the passage of current through gaps between the nanotubes.
when you combine some biomimicry, metamaterials and nanowires? It turns out to be integrated the first circularly polarized light detector on a silicon chip.
Researchers at Vanderbilt University have used silver nanowires to fabricate a metamaterial that is capable of detecting polarized light in a way not unlike the way cuttlefish, bees,
the researchers fabricated the portable CPL sensors by laying down nanowires in a zigzag pattern over a thin sheet of acrylic affixed to a thick silver plate.
This material is affixed to the bottom of a silicon wafer with the nanowire side up.
The nanowires create a sea of electrons that produces lasmondensity waves, the oscillations in the density of electrons that are generated
The researchers found that they could make the zigzag pattern of nanowires with a right-or left-handed orientation.
When they arranged the nanowires in right-handed pattern, the surface absorbed right circularly polarized light
And when they arranged the nanowires to have both left-and right-handed patterns, the sensor could discern between left
Until now, the only experimental TFET to meet the International Technology Roadmap for Semiconductors (ITRS) goal of average subthreshold swing below 60 millivolts per decade over four decades of current was a transistor that used nanowires.
#The New Wrinkle in Graphene Is Wrinkles One of the holy grails of graphene research has been a method for achieving wafer-scale growth of wrinkle-free single-crystal monolayer graphene on a silicon wafer.
and during that process we accidentally found small nanowrinkles, just five nanometers wide, in the sample.
can be used to see objects as small as two nanometers in width. or perspective, that makes DNA about 50,000 times thinner than a human hair,
#Liquidity Launches To Bring Clean water To Everyone Liquidity Nanotech is trying to change the world.
Screen Shot 2015-05-04 at 7. 29.15 AM To create the nanofiber thin membrane that could be produced at scale,
An international team of researchers made the discovery by studying a superconductor made from carbon-60 molecules or"buckyballs".
"The team found the new state after changing the distance between neighbouring buckyballs by doping the material with rubidium,'physicsworld. com'reported.
An international team of researchers made the discovery by studying a superconductor made from carbon-60 molecules or"buckyballs".
"The team found the new state after changing the distance between neighbouring buckyballs by doping the material with rubidium,'physicsworld. com'reported.
the primary component of natural gas, using a combination of semiconducting nanowires and bacteria. The research builds on a similar hybrid system that yielded butanol, a component in gasoline,
"said Yang, also a co-director of the Kavli Energy Nanosciences Institute.""One purpose of this experiment was to show we could integrate bacterial catalysts with semiconductor technology.
Working with brick-like blocks of gold nanoantennas, the researchers fashioned a"skin cloak"barely 80 nanometres in thickness,
or off simply by switching the polarization of the nanoantennas.""This is the first time a 3d object of arbitrary shape has been cloaked from visible light,
"The Calverton, New york-based Graphene 3d Lab is already well-known for the development of proprietary graphene-based nanocomposite materials for 3d printing,
The nanoscale structure of the material allows it to absorb more than 25 times its own weight in contaminants,
economically sustainable and intelligently manufactured combining cutting edge 3d printing and nanoscale cleantech material research, said the developers. pongesuit aims to transform the swimming experience into an eco-friendly activity,
#3d printed Micro-Fish to Explore the Oceans of Our Bodies In the exponentially vital industry of nanoengineering,
Two professors of nanoengineering from the University of California San diego are utilizing advanced 3d printing technology to produce icrofish fish-shaped microrobotic devices geared towards traveling
The nanoengineering team was then able to modify the microfish body with various nanoparticles, using platinum in the tail section to interact with the hydrogen peroxide used to propel the fish forward,
Chen and Wang have conducted demonstrations to show the great potential of combining 3d printing with nanoengineering, installing polydiacetylene (PDA) nanoparticles within the microfish.
when nanoparticles are introduced to the particular toxins. This project offers boundless potential for the way that we locate
and scaffolds with the required shapes and sizes. he carbon nanotubes (or CNT) were added to the bioprintable material mixture to create a hree-dimensional electrical conducting network all through the volume of the scaffold,
CNTS are basically one-atom-thick graphene sheets rolled up onto themselves in order to form very long filaments with diameters of only a few nanometers. n this sense,
electrical stimulation has been explored since the discovery of the presence of electrical potentials in mechanically loaded bones,
by adding conducting CNTS into the bioprinted polymer and mineral prosthetic bone implant, you can stimulate the regrowth of the actual bone cells.
Perhaps one of the most curious aspects is that bioprinting CNTS created no additional difficulties,
the addition of the CNTS was performed and reaching a proper dispersion took a bit of stirring time. ercedes
nanoparticles and biocompatible matrices for biotechnological applications. Moreover, they are pioneers in the application of silica-based ordered mesoporous materials,
The cloak, 80 nanometers in thickness, was wrapped around a three-dimensional object shaped with bumps and dents.
#Tiny'Nanoneedles'Prompt Parts of the Body to Generate New Blood vessels The researchers, from Imperial College London and Houston Methodist Research Institute in the USA, hope their nanoneedle technique could ultimately help damaged organs
and nerves to repair themselves and help transplanted organs to thrive. The nanoneedles work by delivering nucleic acids to a specific area.
Nucleic acids are the building blocks of all living organisms and they encode, transmit and express genetic information.
The nanoneedles are tiny porous structures that act as a sponge to load significantly more nucleic acids than solid structures.
The nanoneedles are made from biodegradable silicon, meaning that they can be left in the body without leaving a toxic residue behind.
and sirna into human cells in the lab, using the nanoneedles. They also showed they could deliver nucleic acids into the back muscles in mice.
using nanoneedles, to provide transplanted organs or future artificial organ implants with the necessary connections to the rest of the body,
and tissues,"said Ennio Tasciotti, Co-Chair, Department of Nanomedicine at Houston Methodist Research Institute and co-corresponding author of the paper."
but we are pleased that the nanoneedles have been successful in this trial in mice. There are a number of hurdles to overcome
and we haven't yet trialled the nanoneedles in humans, but we think they have enormous potential for helping the body to repair itself."
"The researchers are now aiming to develop a material like a flexible bandage that can incorporate the nanoneedles.
Alternatively, we may see surgeons first applying the nanoneedle bandages inside the affected region to promote the healthy integration of these new organs and implants in the body.
#Microbubble Technology for Delivery of Nanoparticles to Tumours Biomedical researchers led by Dr. Gang Zheng at Princess Margaret Cancer Centre have converted successfully microbubble technology already used in diagnostic imaging into nanoparticles that stay
The discovery, published online today in Nature Nanotechnology, details how Dr. Zheng and his research team created a new type of microbubble using a compound called porphyrin-a naturally occurring pigment in nature that harvests light.
and observed that they fragmented into nanoparticles. Most importantly the nanoparticles stayed within the tumour and could be tracked using imaging."
"Our work provides the first evidence that the microbubble reforms into nanoparticles after bursting and that it also retains its intrinsic imaging properties.
We have identified a new mechanism for the delivery of nanoparticles to tumours, potentially overcoming one of the biggest translational challenges of cancer nanotechnology.
In addition, we have demonstrated that imaging can be used to validate and track the delivery mechanism, "says Dr. Zheng, Senior Scientist at the Princess Margaret and also Professor of Medical Biophysics at the University of Toronto.
Conventional microbubbles, on the other hand, lose all intrinsic imaging and therapeutic properties once they burst, he says,
"So for clinicians, harnessing microbubble to nanoparticle conversion may be a powerful new tool that enhances drug delivery to tumours,
organic nanoparticle delivery platforms capable of transporting cancer therapeutics directly to tumours. Source: http://www. uhn. ca a
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