#Mild Carbonization Process Converts Polymer Organic Frameworks into Nanometer-Thick Carbon Sheets"We have developed a'designer carbon'that is both versatile and controllable,
Bao and her colleagues developed a new way to synthesize high-quality carbon using inexpensive-and uncontaminated-chemicals and polymers.
The process begins with conducting hydrogel, a water-based polymer with a spongy texture similar to soft contact lenses."
"Hydrogel polymers form an interconnected, three-dimensional framework that's ideal for conducting electricity, "Bao said."
and activation process to convert the polymer organic frameworks into nanometer-thick sheets of carbon."
pore size and surface area simply by changing the type of polymers and organic linkers we use,
The researchers tested their cantilever's capacities by measuring the mass of polystyrene microspheres, which have a mean diameter of 15.0 micrometers--the same order of magnitude as a liver cell.
and Technology to tap into organic chemistry and conducting polymers to fabricate a three-dimensional (3-D) polypyrrole (PPY) aerogel-based electromagnetic absorber.
because it enables them to egulate the density and dielectric property of conducting polymers through the formation of pores during the oxidation polymerization of the pyrrole monomer,
we noticed that it was almost invisible and very flexible like a polymer and could literally be sucked into a glass needle or pipette.
"Whether it's a silicon probe or flexible polymers...they cause inflammation in the tissue that requires periodically changing the position or the stimulation.
researchers lay out a mesh of nanowires sandwiched in layers of organic polymer. The first layer is dissolved then, leaving the flexible mesh,
#Polymer Nanobrushes Grab Selected Bacteria for Pathogen Detection A Texas A&m Agrilife Research engineer and a Florida colleague have developed a biosensor that can detect listeria bacterial contamination within two
"I do the biological and polymer engineering; he does the electrochemistry and nanostructures, "she said.
"The selection process the polymers use to select for specific bacteria in the listeria biosensor is very similar to the squid's cilia.
when the polymer nanobrushes have had time to grab the selected bacteria, the rest of the sample is washed away and the impedance,
the 9500 is the ideal system for an expansive range of advanced AFM applications associated with materials science, life science, polymer science and electrical characterization.
polymers, complex materials and thin films, instantly correlating chemical maps with sample properties, such as modulus, conductivity, and workfunction.
as well as semiconductive and conductive polymers to tailor the behavior of natural cotton fibers. he layers were so thin that the flexibility of the cotton fibers is preserved always,
coated with a layer of charged polymer that aids the particles to stick to the target microbes,
a start-up company, has developed a proprietary nano-polymer additive that protects against any microbial infection
The nano-polymer additive's unique features are that they are activated only upon contact, and do not leak
Ervin Weiss inventor and one of the developers of the nano-polymer additive technology adds,
"The nano-polymer additive has a broad spectrum of antibacterial effect. It kills Gram positive and Gram negative bacteria,
as well as Candida species believe that the nano-polymer additive, which is free of toxins and heavy metals, will revolutionize medical device industry. s
Brandl had synthesized previously polymers that could be cleaved apart by exposure to UV LIGHT. But he and Bertrand came to question their suitability for drug delivery,
because we saw that the particles aggregate once you irradiate them with UV LIGHT. trap for ater-fearingpollutionthe researchers synthesized polymers from polyethylene glycol,
Nanoparticles made from these polymers have a hydrophobic core and a hydrophilic shell. Due to molecular-scale forces
and the polymers are biodegradable, minimizing the risks of leaving toxic secondary products to persist in,
from environmental remediation to medical analysis. The polymers are synthesized at room temperature, and don need to be prepared specially to target specific compounds;
"The technique has been demonstrated successfully on a variety of materials including cotton, polyester and linen. The next step is to further develop the chemical deposition process on other materials,
New substrate opens door to mass produced regenerative therapies The polymer which is called poly (HPHMA-co-HEMA)- combines N-(4-hydroxyphenyl) methacrylamide and 2-hydroxyethyl methacrylate.
and neural progenitors. he idea is coated culture vessels with the polymer are arranged into arrays or factories each capable of supporting the production of billions of human pluripotent stem cells for applications in regenerative medicine and transplants.
the Nottingham team also claim their polymer could help regenerative medicines developers reduce manufacturing costs. Substrates a substantial costsubstrates used for commercial stem cell production are expensive.
We are testing the substrate with potential commercial partners now. ommercial applicationsthe polymer has application in both the production of cells for drug safety testing
Advanced Materialsiscovery of a Novel Polymer for Human Pluripotent Stem Cell Expansion and Multi-lineage Differentiationoi:
New substrate opens door to mass produced regenerative therapies Mass produced regenerative therapies are a step closer say UK researchers who have developed a polymer substrate they claim can be used to set up tem cell factories.
The polymer which is called poly (HPHMA-co-HEMA)- combines N-(4-hydroxyphenyl) methacrylamide and 2-hydroxyethyl methacrylate.
and neural progenitors. he idea is coated culture vessels with the polymer are arranged into arrays or factories each capable of supporting the production of billions of human pluripotent stem cells for applications in regenerative medicine and transplants.
the Nottingham team also claim their polymer could help regenerative medicines developers reduce manufacturing costs. Substrates a substantial costsubstrates used for commercial stem cell production are expensive.
We are testing the substrate with potential commercial partners now. ommercial applicationsthe polymer has application in both the production of cells for drug safety testing
Advanced Materialsiscovery of a Novel Polymer for Human Pluripotent Stem Cell Expansion and Multi-lineage Differentiationoi:
iscovery of a Novel Polymer for Human Pluripotent Stem Cell Expansion and Multilineage Differentiation. he possibilities for regenerative medicine are still being reached in the form of clinical trials,
Georgia Institute of technology Study Coating the inside of glass microtubes with a polymer hydrogel material dramatically alters the way capillary forces draw water into the tiny structures,
while the polymer layer locally deforms. The meniscus then rapidly slides for a short distance before the process repeats.
After using high-resolution optical visualization to study the meniscus propagation while the polymer swelled, the researchers realized they could put this previously-unknown behavior to good use.
or cooling the polymer inside a microfluidic chamber, you can either speed up the filling process
That would allow precise control of fluid flow on demand using external stimuli to change polymer film behavior.
dynamically evolving polymer interfaces in which the system creates an energy barrier to further motion through elasto-capillary deformation,
the paper authors wrote. his insight has implications for optimal design of microfluidic and lab-on-a-chip devices based on stimuli-responsive smart polymers.
and tag individual cells using fluorescent polystyrene beads of different diameters, rather than injected droplets of oil or fat.
Ribo-T may be able to be tuned to produce unique and functional polymers for exploring ribosome functions
or producing designer therapeutics--and perhaps one day even non-biological polymers. No one has developed ever something of this nature."
Polymers are poor conductors of electricity and 3d printing is based primarily around a set range of plastics.
To overcome this, Controlled Environments reports that the research group designed materials based around polymers and wax.
and Lawrence Livermore National Laboratory employed a microfluidic assembly technique to produce microcapsules that contain liquid sorbents encased in highly permeable polymer shells.
These permeable silicone beads could be sliced a-bread'breakthrough for CO2 capture--efficient easy-to-handle minimal waste
which the flow rates of three fluids--a carbonate solution combined with a catalyst for enhanced CO2 absorption a photocurable silicone that forms the capsule shell
The silicone-tipped earbuds are inserted into then ear and their audio features can be controlled using a smartphone app.
The University of Illinois team created a polymer in 2014 that they showed can fix holes of up to three centimetres.
with no sewing required. the printer works with custom polyester and cotton blends, that are shipped as liquids in pods that are placed into the machine prior to each job. the team consists of marcus foley, aaron rowley both biomedical/mechanical engineers and joseph white,
Google also talked up the concept of giving new and unusual battery designs a forum to experiment with Project Ara there are battery technologies that offer substantial improvements over conventional lithium polymer architectures
and a polymer solution on top of an indium-tin-oxide (ITO) glass ply that was used as the anode for the LED.
researchers have been searching for polymers on which human pluripotent stem cells can be grown and differentiated in vast numbersillions at a time. he possibilities for regenerative medicine are still being researched in the form of clinical trials,
which are made polymers from natural materials like proteins or from human-made substances to make plastic,
Ph d.,study co-author and the Georgia Power Professor of Polymers, Fibers and Textiles in UGA's college of family and consumer sciences."
"Currently, the most common nanofiber manufacturing technique, called electrospinning, uses high-voltage electricity and specially designed equipment to produce the polymer strings.
Polymer that has been melted or liquefied in a solution is mixed with biocompatible iron oxide or another magnetic material and placed inside a hypodermic needle.
a droplet of the polymer fluid stretches out and attaches to the magnet, forming a nanofiber string that winds around the platter as it continues to spin.
"The researchers can use this method to create a variety of nanofibers simply by changing the polymer placed in the syringe.
"We can use almost any kind of polymer with this platform, and we can tailor make the nanofibers for different applications,
Ribo-T may be able to be tuned to produce unique and functional polymers for exploring ribosome functions
and perhaps one day even non-biological polymers, point out Dr. Mankin.""We felt like there was a very small chance Ribo-T could work,
According the company, the new piezoelectric polymer converts pressure and vibration into electric energy with high efficiency,
ceramics and polymers. Both are based on the principle of using mechanical strain to generate electricity
while polymers are lighter, more flexible, and more durable, but not very efficient. According to Ricoh, its new energy-generating rubber combines flexibility and high energy output.
but it's also more flexible and durable than other polymers; surviving several million uses in testing.
but it does say that it's engaged in further research to produce a commercially viable version of the polymer for both sensors and energy applications o
It consists of rolls of adhesive wallpaper made of flexible polymer film, which is embedded with Kevlar fibers in a crisscross pattern.
that are composed of polydimethylsiloxane (PDMS) elastomer. To make the tubes, the researchers start by dipping a rod-shaped cylindrical template in a bath of liquid PDMS.
gravity pulls much of the gelling elastomer down to the underside of the template, making the coating thinner on top and thicker on the bottom.
the secondary component of the ink (used as a binder) is a biocompatible, biodegradable and hyperelastic polyester (PLG) that,
The ability to tune the elasticity of the material at will could prove important in manufacturing biomedical polymers that can,
Still, Silicon valley is betting that Bolt silk could supplant petroleum-based textiles such as polyester, Lycra,
The conducting elastomers can be fabricated in diameters ranging from the very small about 150 microns
Last year, the same team created a polymer, inspired by the human blood-clotting system, which patched holes up to 3cm wide.
The secret ingredient in Shah ink is a mix of biocompatible elastomer and fast-evaporating solvents.
we render these capsules stimuli-responsive by incorporating gold nanorods into the polymer shell, allowing for highly selective photothermal rupture
and encased in a sphere of silica and a polymer. The researchers'method of making the stars ensures that all of the particles are nearly identical
The 100%polyimide polymer construction eliminates dusting and the requirement for dangerous handling protocols, making it clean and safe.
The energy-damping bellow is extruded using a Dupont Hytrel TPC-ET polyester thermoplastic elastomer with a tensile elastomer element made of a soft material with lower stiffness to deliver a low force response to the system.
This electron microscope image shows tiny nanoparticles of bismuth ferrite embedded in a polymer film. The film enhances the unique electric and magnetic properties of bismuth ferrite and preserves these properties even when bent.
and mixed them into a polymer solution. The solution was dried in a series of steps at increasing temperatures to produce a thin flexible film.
Mixing nanoparticles of bismuth ferrite into a polymer improved the current-leakage problem and also gave the film flexible stretchable properties.
They also tested different shaped devices made out of glass, polystyrene, stainless steel, and polycaprolactone, a polyester, showing that the shape matters as well as the size e
#Injectable Hydrogel Material Serves as Scaffold to Heal Wounds At UCLA researchers have designed an injectable hydrogel scaffold that promotes wound healing by serving as a 3d platform within which new tissue can grow.
The corticosteroid DEX, a powerful ameliorator of inflammation, was released from the polymer by external application of an electromagnetic field for 2 h/day for a week.
and the chipsclear polymer allows scientists to watch the small-scale biological processes in real time. he organs-on-chips allow us to see biological mechanisms
"Gong and her students also have been based studying bio polymers for more than a decade. CNF offers many benefits over current chip substrates, she says."
"The advantage of CNF over other polymers is that it's a bio-based material and most other polymers are based petroleum polymers.
"And, compared to other polymers, CNF actually has a relatively low thermal expansion coefficient.""The group's work also demonstrates a more environmentally friendly process that showed performance similar to existing chips.
Scientists used revolutionary nanotechnology to work on small polymer layers inside implants which measure between 1 and 100 nanometers (nm) a human hair is approximately 100,
the risk of deep bone infection is reduced substantially. ur research shows that applying small quantities of antibiotic to a surface between the polymer layers
Nanofibers-polymer filaments only a couple of hundred nanometers in diameter have a huge range of potential applications, from solar cells to water filtration to fuel cells.
a polymer solution is pumped through a small nozzle, and then a strong electric field stretches it out.
The cones are dipped in a polymer solution, and the electric field causes the solution to travel to the top of the cones,
and a dissolved polymer. When an electrode is mounted opposite the sawteeth and a voltage applied between them,
the water-ethanol mixture streams upward, dragging chains of polymer with it. The water and ethanol quickly dissolve, leaving a tangle of polymer filaments opposite each emitter, on the electrode.
The researchers were able to pack 225 emitters, several millimeters long, on a square chip about 35 millimeters on a side.
Nanofibers-polymer filaments only a couple of hundred nanometers in diameter have a huge range of potential applications, from solar cells to water filtration to fuel cells.
a polymer solution is pumped through a small nozzle, and then a strong electric field stretches it out.
The cones are dipped in a polymer solution, and the electric field causes the solution to travel to the top of the cones,
and a dissolved polymer. When an electrode is mounted opposite the sawteeth and a voltage applied between them,
the water-ethanol mixture streams upward, dragging chains of polymer with it. The water and ethanol quickly dissolve, leaving a tangle of polymer filaments opposite each emitter, on the electrode.
The researchers were able to pack 225 emitters, several millimeters long, on a square chip about 35 millimeters on a side.
The two components that make the UCLA-developed system work are a polymer donor and a nanoscale fullerene acceptor.
The polymer donor absorbs sunlight and passes electrons to the fullerene acceptor; the process generates electrical energy.
The plastic materials, called organic photovoltaics, are organized typically like a plate of cooked pasta a disorganized mass of long, skinny polymer paghettiwith random fullerene eatballs.
because the electrons sometimes hop back to the polymer spaghetti and are lost. The UCLA technology arranges the elements more neatly like small bundles of uncooked spaghetti with precisely placed meatballs.
The fullerenes inside the structure take electrons from the polymers and toss them to the outside fullerene
which can effectively keep the electrons away from the polymer for weeks. hen the charges never come back together,
The two components that make the UCLA-developed system work are a polymer donor and a nanoscale fullerene acceptor.
The polymer donor absorbs sunlight and passes electrons to the fullerene acceptor; the process generates electrical energy.
The plastic materials, called organic photovoltaics, are organized typically like a plate of cooked pasta a disorganized mass of long, skinny polymer paghettiwith random fullerene eatballs.
because the electrons sometimes hop back to the polymer spaghetti and are lost. The UCLA technology arranges the elements more neatly like small bundles of uncooked spaghetti with precisely placed meatballs.
The fullerenes inside the structure take electrons from the polymers and toss them to the outside fullerene
which can effectively keep the electrons away from the polymer for weeks. hen the charges never come back together,
which are coated with a charged polymer layer that helps them adhere to the target microbes,
which are coated with a charged polymer layer that helps them adhere to the target microbes,
or continuous formation of polymer nanofibers and other nanomaterials in the bulk of a sheared fluid medium is introduced.
Creating large amounts of polymer nanofibers dispersed in liquid is a challenge that has vexed researchers for years.
But engineers and researchers at North carolina State university and one of its start-up companies have reported now a method that can produce unprecedented amounts of polymer nanofibers
describe the method that allows them to fabricate polymer nanofibers on a massive scale. The method-fine-tuned after nearly a decade of increasing success in producing micro
-and nanoparticles of different shapes-works as simply as dropping liquid solution of a polymer in a beaker containing a spinning cylinder.
Glycerin-a common and safe liquid that has many uses-is used to shear the polymer solution inside the beaker along with an antisolvent like water.
the researchers created polymer microrods, which could have various useful applications in foams and consumer products."
"Depending on the concentrations of liquids, polymers and antisolvents, you can create multiple types of nanomaterials of different shapes and sizes.""
Its flexibility was imparted by embedding the silicon bars into a flexible layer of silicone. As the silicone was bent
or flexed, the period of the grating spacings responded in kind. The semiconductor material also allowed the team to create a skin that was incredibly thin, perfectly flat,
University of Akron polymer scientist finds that certain amino acids and sugars were meant simply to be in life March 11th,
"But it's been a mostly polymer composite with graphene making up less than 20 percent of the volume."
the graphene flakes are mixed with a biocompatible elastomer and quickly evaporating solvents.""It's a liquid ink,
The presence of the other solvents and the interaction with the specific polymer binder chosen also has a significant contribution to its resulting flexibility and properties.
Shah said the biocompatible elastomer and graphene's electrical conductivity most likely contributed to the scaffold's biological success."Cells conduct electricity inherently--especially neurons,
Researchers at the University of Georgia have developed an inexpensive way to manufacture extraordinarily thin polymer strings commonly known as nanofibers.
These polymers can be made from natural materials like proteins or from human-made substances to make plastic,
study co-author and the Georgia Power Professor of Polymers, Fibers and Textiles in UGA's College of Family and Consumer Sciences."
"Currently, the most common nanofiber manufacturing technique--electrospinning--uses high-voltage electricity and specially designed equipment to produce the polymer strings.
Polymer that has been melted or liquefied in a solution is mixed with biocompatible iron oxide or another magnetic material and placed inside a hypodermic needle.
a droplet of the polymer fluid stretches out and attaches to the magnet, forming a nanofiber string that winds around the platter as it continues to spin.
"The researchers can use this method to create a variety of nanofibers simply by changing the polymer placed in the syringe.
"We can use almost any kind of polymer with this platform, and we can tailor make the nanofibers for different applications,
#Fine-tuned molecular orientation is key to more efficient solar cells Polymer-based solar cells offer a number of potential advantages.
They are made of polymers that are inexpensive and flexible, and can be deposited on glass or plastic substrates, allowing the construction of large-scale structures.
and Kazuo Takimiya of the RIKEN Center for Emergent Matter Science managed to create a type of polymer solar cell called a bulk-heterojunction solar cellhere the electron donor
because we now have an understanding of how we can move forward to create polymer solar cells with greater efficiency.
and Technology to tap into organic chemistry and conducting polymers to fabricate a three-dimensional (3-D) polypyrrole (PPY) aerogel-based electromagnetic absorber.
because it enables them to"regulate the density and dielectric property of conducting polymers through the formation of pores during the oxidation polymerization of the pyrrole monomer,"
Silk fibroin is a natural polymer produced by various insects. This substance has applications in the production of tissue engineering scaffolds as a biological material due to its appropriate mechanical properties and computability.
News and information On the Surface of Polymers June 17th, 2015deben reports on how the University of Portsmouth use in situ XCT compressive testing to help answer how materials respond to complex loading conditions June 17th,
The nanoparticles are coated with polymers that fine-tune their optical properties and their rate of degradation in the body.
The polymers can be loaded with drugs that are released gradually. The nanoparticles also can be made quite small,
"We think we coated this particle with a specific polymer and with specific drug-loading
In further experiments, the researchers found they could alter the infusion of the particles into melanoma cells by adjusting the polymer coatings.
"You can coat it with different polymers to give it a different optical response. You can load it with two drugs,
The new technique relies on polymer self-assembly, where molecules are designed to spontaneously assemble into desired structures.
an intensely hot laser swept across the sample to transform disordered polymer blocks into precise arrangements in just seconds."
To further exploit the power and precision of LZA, the researchers applied a heat-sensitive elastic coating on top of the unassembled polymer film.
the scientists converted the polymer base into other materials. One method involved taking the nano-cylinder layer
These molecules then glom onto the self-assembled polymer, converting it into a metallic mesh.
where a vaporized material infiltrates the polymer nano-cylinders and transforms them into functional nanowires.
allowing it to drive polymer self-assembly even on top of complex underlying layers. This versatility enables the use of a wide variety of materials in different nanoscale configurations."
The corticosteroid DEX, a powerful ameliorator of inflammation, was released from the polymer by external application of an Electromagnetic field for 2 hours/day for a week.
a conductive polymer material that responds to electromagnetic fields. Wen Gao, a postdoctoral researcher in the Center for Paralysis Research who worked on the project with Borgens
and the shape change of the polymer that allows it to store and release drugs,
the polymer snaps back to the initial architecture and retains the remaining drug molecules.""For each different drug the team would need to find the corresponding optimal electromagnetic field for its release,
Natural Polymers with Applications in Various Industries Synthesized in Iran June 22nd, 2015announcements n-tech Research Issues Report on Smart Coatings Market,
New non-platinum and nanosized catalyst for polymer electrolyte fuel cell Abstract: Canadelectrochim have discovered a new non-platinum and nano-sized catalyst for the fuel cell based on Mother Nature
Advancements in the electrolyte system of PEMFCTHE commercial development of a special electrolyte (single ion conducting polymer electrolyte) changed the field of electrochemical devices in a significant way.
With the development of a single ion (for example only hydrogen ions in PEMFC) conducting polymer, electrochemists have the ability to choose from a variety of polymers with both high conductivity for a given ion of interest (off course hydrogen ions
and process-ability allowing the design of electrochemical devices (such as PEMFC) in their most ideal format (3). The broad class of electrolyte (electrolyte is a polymer
and so it is called polymer electrolyte) to which Nafion (discovered by Dupont company) belong has application in a number of area of commercial importance,
Natural Polymers with Applications in Various Industries Synthesized in Iran June 22nd, 2015high-tech nanofibres could help nutrients in food hit the spot June 17th, 2015the European project SVARNISH,
2015a cool way to form 2-D conducting polymers using ice: POSTECH scientists develop breakthrough technique to easily optimize electrical properties of Polyaniline nanosheets to an unprecedented level in an environmental-friendly and inexpensive way July 7th,
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