The base material is polydimethylsiloxane (PDMS), an easy-to-process silicone-based organic polymer. Conductive carbon black powder is added to the liquid silicone before it is spread flat by a thin-film applicator.
After creating the tattoo-like designs on a computer, a laser cutter traces out the design
which makes up the sensor. This is then sandwiched between two clear sheets of silicone.""The sensor is made out of biocompatible silicone and carbon-doped silicone.
So there are carbon particles inside the silicone which make it conductive so we can use it for electronics,
"explained Weigel. The stickers are attached to the body using a medical-grade adhesive that can be peeled easily off after use without hurting the skin.
The current prototypes are wired to a computer, although the technology could evolve to use integrated microchips.
whole system consumes 9 Watts of power) to create high-pitched and high-intensity sound waves to levitate a spherical bead (of up to four mm in diameter) made of expanded polystyrene.
Finally, the researchers filled the pores that remained after the sintering with a synthetic monomer used in dentistry,
The polymer foam starts as a liquid that can be poured into a mold to create shapes,
Cornell researchers are close to making prosthetic body parts with the so-called"elastomer foam.""""We are currently pretty far along for making a prosthetic hand this way,
The researchers used carbon fiber and silicone on the outside to fashion a structure that expands at different rates on the surface-to make a spherical shape into an egg shape, for example,
features a sensor created by sandwiching a conductive carbon black powder between two sheets of silicone.
they use a flexible polymer substrate covered in gold nanoparticles to which the VOCS attach. By applying electrodes and a voltage to the resulting film,
#Researchers discover N-type polymer for fast organic battery The discovery relies upon a"conjugated redox polymer"design with a naphthalene-bithiophene polymer,
The breakthrough, described in the Journal of the American Chemical Society and featured as ACS Editors'Choice for open access, addresses a decades-long challenge for electron-transport conducting polymers,
Researchers have recognized long the promise of functional organic polymers, but until now have not been successful in developing an efficient electron-transport conducting polymer to pair with the established hole-transporting polymers.
The lithium-doped naphthalene-bithiophene polymer proved both to exhibit significant electronic conductivity and to be stable through 3,
000 cycles of charging and discharging energy, Yao said. The discovery could lead to a cheaper alternative to traditional inorganic-based energy devices,
Organic polymers can be processed at relatively low temperatures, lowering the cost. They also produce less CO2,
organic polymers could potentially be synthesized from biomass.""Organic-conjugated polymers are emerging as a materials class for energy-related applications,
enabling a path to a more sustainable energy landscape without the need of energy-intensive, expensive and sometimes toxic metal-based compounds,
concluding that"a model polymer, P (NDI2OD-T2), was stably and reversibly n-doped to a high doping level of 2. 0,
-conjugated polymers...With rational molecular design? -conjugated redox polymers will establish new design space in polymer chemistry
and see widespread applications, especially in energy-related ones such as batteries, supercapacitors and thermoelectrics.""The basic polymer used in the work was discovered in 2009;
Yao said it was provided by members of the research team from Polyera Corporation, a technology company based in Illinois
and raised the polymer's doping level from a previously reported 0. 1 to 2. 0. The results are record-setting.
The polymer exhibits the fastest charge-discharge performance for an organic material under practical measurement conditions,
His group also will continue to do basic scientific research on the polymer to learn more about it,
It is a gel-like material called an electroactive polymer that can potentially mimic human movement
and wrapped over a multilayer polymer composite, the heated film stimulates the polymer to solidify.
The group tested the film on a common carbon-fiber material used in aircraft components,
After it has fused the underlying polymer layers, the film itself--a fraction of a human hair's diameter--meshes with the composite, adding negligible weight.
then applied a current to heat both the film and the underlying polymer in the Cycom composite layers.
or cross-link, the polymer and carbon fiber layers, finding that the CNT film used one-hundredth the electricity required for traditional oven-based methods to cure the composite.
some of the highest-temperature aerospace polymers require temperatures up to 750 F in order to solidify.""We can process at those temperatures,
In addition to the HZDR, the Technische Universitt Dresden, Leibniz-Institute of Polymer Research Dresden (IPF), the Fraunhofer Institute for Ceramic Technology and Systems (IKTS) and the Namlab ggmbh all participate in running the structured doctoral program m
The tests showed that reflection can be reduced by even 10,000 times in polymers, by adding particles
include high permeability polymers, nanomagnets for medical diagnostics applications, materials for the 3d printing of metal articles,
TUW has developed therefore new polymers.""These are so-called thermoplastic polyurethanes, "explains Robert Liska from the Institute of Applied Synthetic Chemistry of Vienna University of Technology."
"By selecting very specific molecular building blocks we have succeeded in synthesizing a polymer with the desired properties."
"A thin polymer thread spun into tubesto produce the vascular prostheses, polymer solutions were spun in an electrical field to form very fine threads and wound onto a spool."
"The wall of these artificial blood vessels is very similar to that of natural ones, "says Heinz Schima of the Medical University of Vienna.
The polymer fabric is slightly porous and so, initially, allows a small amount of blood to permeate through
The platform is a disposable flexible polyester chip with implanted electrodes. HIV-1 antibodies are added to whole blood
a polyester film with microfluidic channels to capture the T cells, and a detection technology known as lensless shadow imaging.
A single drop of whole blood from a fingerprick was applied to the polyester film, where capillary forces pull the blood into the microfluidic channels.
The shadow of the CD4+T cells that adhere to the channels can then be visualized on the polyester film.
and Mechanical Science & Engineering Professor Andrew Alleyne, embedded QDS in novel polymer materials that retain strong quantum efficiency.
They then used electrohydrodynamic jet (e-jet) printing technology to precisely print the QD-embedded polymers onto photonic crystal structures.
and 3d printing techniques to create a custom silicone guide implanted with biochemical cues to help nerve regeneration.
#Silicone vaginal rings deliver antiviral drugs, protect women against HIV Researchers at University Jean Monnet of Saint-Etienne,
France have succeeded in developing a vaginal silicone ring that delivers molecules that act on both HIV and herpes virus.
despite the fact that silicone is a hydrophobic compound, "said Meriam Memmi, author of the study and Phd candidate at University Jean Monnet of Saint-Etienne, France.
This was possible due to the addition of a hydrophilic compound to the silicone, which allowed the drugs to be released from their reservoirs.
These preliminary results demonstrate the ability of silicone rings to continuously deliver hydrophilic antiviral drugs for a long period of time at a concentration that would be effective for neutralizing the viruses present in semen.
"The aim of our study was to develop a vaginal silicone ring that was nontoxic to the health of users
Bruno Pozzetto and of chemists from the Polymer Materials Engineering Laboratory under the supervision of Pr.
Christian Carrot, with the help of Mr. Blaise Figuereo, a silicone engineer who designed the apparatus used to create the reservoir rings s
They showed that silicone elastomers can be printed seamlessly into gradient architectures composed of soft and rigid regions.
The work, published Monday in the Proceedings of the National Academy of Sciences, pairs gold nanomesh with a stretchable substrate made with polydimethylsiloxane, or PDMS.
polymer coated nickel-titanium (nitinol) alloy stent frame specially designed to prevent leakage. To implant the device,
"The metamaterial consists of silicon pillar arrays embedded in a polymer matrix and clad in gold film.
which consisted of one polystyrene lens and two polymethyl methacrylate aspheric lenses, the researchers used a single-point diamond turning lathe.
"The study was funded co by Capillary Film Technology Ltd--a UK SME developing low-cost microfluidic fluoropolymer film for life sciences and clinical diagnostics.
in addition to combining it with a hydrophilic plasma polymer coating, which attracts moisture, "says Dr. Ingo Grunwald,
Researchers have integrated silver nanoparticles into the thin plasma polymer coating, which is up to just 100 nanometers thick.
with two plasma polymer layers surrounding a center layer of silver. Within this structure a biocide reservoir is formed
This allows the silver ions to penetrate the outermost plasma polymer layer over a set period of time deemed necessary to properly integrate the implant.
The test samples were coated using a plasma polymerization facility at the IFAM in Bremen. Researchers confirmed the mechanical stability
A demonstration unit of the plasma polymer coating is currently available. Researchers will be presenting a dental implant featuring the Dentaplas coating at the MEDICA trade fair in Düsseldorf from November 16-19 at the joint Fraunhofer booth t
The pressure sensors are made of a carbon nanotube-elastomer composite shaped into tiny pyramidal structures that are coated onto a surface.
which forms part of the Fraunhofer Institute for Chemical Technology ICT, in collaboration with SBHPP, the high-performance plastics business unit of Sumitomo Bakelite Co. Ltd.,
Palacci and colleagues wrapped pale polymer around tiny cubes of hematite, a dark mineral of iron and oxygen that protrudes from the spherical beads as a reddish dot.
The polymer beads surf forward on those flows in the direction of their hematite protrusions.
40 very fine, dielectric elastomer sensors measure compression load and distribution for diabetes patients taking over the job usually performed by the nerves in their feet. xisting systems on the market measure the pressure distribution
Electronics transmit data to your smartphone The sensors are made from a soft and very stretchy elastomer silicone film that is easy to integrate into textiles.
the team developed a simple method to densely coat the nanoparticles with a nonsticky polymer called PEG,
biocompatible polymer film made out of polyvinylidene fluoride, or PVDF. To improve the material energy harvesting ability, they added DNA,
The second step is a layer of uricase trapped in polymers, which reacts selectively with uric acid.
#New method for modifying natural polymers could help bring lifesaving medications to market In drug-delivery research,
a natural polymer often used for drug delivery. According to Kevin Edgar, a professor of sustainable biomaterials and Meng doctoral adviser, the new method an get drugs to market,
Suspending the drug in a polymer matrix can help. Polymers are long chains of repeating units.
Many familiar materials are polymers including proteins, DNA, and cellulose, a sugar-based polymer which gives plant cell walls their structure.
Dispersing a drug in a polymer matrix protects it and suppresses the formation of insoluble crystals.
The polymer eventually swells and releases the drug, allowing it to be absorbed into the bloodstream.
Because medications have broadly diverse chemical structures, properties, and dosing and delivery requirements, finding the right polymer matrix to work well with most drugs involves making
and testing many different options. Meng chemistry offers a new way to make a wide variety of polymer matrices using cellulose as a starting material.
Cellulose is an attractive material for drug delivery because it nontoxic breaks down into components that are already present in the body,
is water-permeable, and can survive the stomach acidic environment. Unlike many synthetic polymers, which are made often from petrochemicals,
cellulose is derived from wood, a renewable resource supporting the mission of the College of Natural resources
renewable starting material to develop a wide variety of polymers specifically tuned to carry many different pharmaceutical targets.
The spectrum of different polymers available is like arvesting apples this year, peaches next year,
and even polymer fibers stretch typically only 20-25 percent, Park noted. That is a limiting factor in a device such as a hand
as the silicone is stretched, cracks develop in the reflective layer, allowing light to escape. By measuring the loss of light,
a building block of a conductive polymer called tetraaniline. The scientists showed for the first time that tetraaniline crystals could be grown vertically.
made of a silicon-like material called an elastomer, to easily remove the sensors, made of gold and chromium, from the silicon wafer.
The flexible, carbon nanotubeaced polymer detects pressure and translates the sensation into pulses of electricity that can be interpreted by the mammalian nervous system,
The paper, tretch-Triggered Drug Delivery from Wearable Elastomers Containing Therapeutic Depots, is published online in the journal ACS Nano.
They then seeped a polymer between the silicon nanowire pillars. After the plastic support solidified, they etched away the silicon backing, leaving bull-eye patterned black silicon embedded in supple plastic.
the thread is coated in silicone which then solidifies. When the desired shape is completed, the tray at the bottom of the machine is slid out and the mesh
which in the early testing is silicone. As there is one continuous piece of thread which is used through the whole structure,
the researchers describe how they used ultrasound to move tiny polystyrene beads measuring only 3mm across
*Expanded polystyrene particles ranging from 0. 6 to 3. 1m diameter are levitated above single-sided arrays.
The dark red polymer material is made using limonene, a compound found in orange peels, and sulphur. It turns yellow
The synthetic coatings are called often polymer brushes because of their bristlelike appearance when attached to the particle surface.
To create the biological equivalent of a polymer brush the researchers turned to neurofilaments pipe cleaner-shaped proteins found in nerve cells.
By acting as tiny cylindrical polymer brushes neurofilaments collectively assemble into a structural network that helps keep one end of the nerve cell propped open
and turned it into a polymer brush by cloning a portion of a gene that encodes one of the neurofilament bristles re-engineering it such that we could attach the resulting protein to surfaces in a precise and oriented way
The DNASE an enzyme that would normally cut up the DNA cocoon is coated in a thin polymer that traps the DNASE like a sword in a sheath.
Once inside the cancer cell the cell acidic environment destroys the polymer sheath containing the DNASE.
A typical lithium-ion battery consists of two tightly packed electrodes--a carbon anode and a lithium metal-oxide cathode--with an ultrathin polymer separator in between.
and his colleagues applied a nanolayer of copper onto one side of a polymer separator creating a novel third electrode halfway between the anode and the cathode.
The copper coating on the polymer separator is only 50 nanometers thick about 500 times thinner than the separator itself said Wu a postdoctoral fellow in the Cui group.
The coated separator is quite flexible and porous like a conventional polymer separator so it has negligible effect on the flow of lithium ions between the cathode and the anode.
and abetted by gelatinous sticky polymers produced by seaweed reports a research team headed by a UC Davis veterinary infectious-disease expert.
Using the parasite Toxoplasma gondii as a model they showed how these sticky polymers increase the chance that disease-causing organisms would be picked up by marine snails
Findings from the new study will be published Oct 8 in the journal Proceedings of the Royal Society B. Discovering the role that these invisible polymers play in disease transmission in the ocean is a tremendous step forward in helping us better understand
In laboratory tests the researchers discovered that the gelatinous polymers excreted by seaweed act in two ways to provide an environment conducive to transmission of infectious diseases.
First the polymers act like glue binding together waterborne organic material into larger particles in
Secondly the polymers help to form sticky biofilms which can trap the T. gondii egg cells and coat kelp on which marine snails graze.
Zeng said the prototype lab-on-a-chip is made of a widely used silicone rubber called polydimethylsiloxane and uses a technique called on-chip immunoisolation.
#New Technique Increases Nanofiber Production Rate Fourfold Nanofibers polymer filaments only a couple of hundred nanometers in diameter have a huge range of potential applications, from solar cells
In the first, 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,
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;
a renewable fermentation process that seeks to act as a partial replacement for the an oil-based processes that goes into making synthetic rubber.
a technology that replaces the oil-based feedstock for part of the synthetic rubber-making process with renewable biomass.
For an idea of the impact, consider that approximately 50 percent of consumer tires are made from polymers
And unlike the Miseq, both the PGM and 454 have problems with accuracy concerning homopolymers,
electric scooters and more Can this polystyrene pedal-powered plane break world records? Solar group to World bank:
But the equally colossal pieces of Styrofoam that protected the computer in shipping more than two decades ago are gone long,
You say Styrofoam is one of the biggest culprits in our landfills, taking up 25 percent of the space.
We talk about Styrofoam because of how it s used, and that s in a highly disposable way.
You have this polymer that s made from carcinogenic compounds like benzene and it will last up to 10,000 years.
We have a plastic that s alive a living polymer. Our vision is to replace plastics where ever they don t make sense
There s a lot of places where we can just replace Styrofoam. That s our first-generation technology.
made from plant-based polymers, comes into contact with blood. Vetigel cofounder, Joe Landolina, started working on the project
which was to use a polymer to seal up a wound very quickly. In the beginning I wasn expecting that the polymer itself would be able to quickly stop bleeds.
We realized that if we put it onto a wound something really remarkable would happenwhich is that it would actually change shape,
and the individual polymer chains to start separating. At this point instead of allowing the material to completely dissolve,
While polymer coatings have been used to achieve more or less this same effect, the polymers degrade rapidly. Even worse, the polymer coatings are sometimes so thick that they actually pose a bigger problem to the heat transfer than the films they are supposed to be combating.
After testing the material in an environment of pure water vapor at 100 degrees Celsius the researcher found that the graphene coating offered a fourfold improvement in heat transfer compared to bare metal.
The MIT researchers have calculated also that these numbers could be improved to a five to seven times improvement by optimizing temperature differences in the system.
a polymer coating solution started to degrade in the environment within three hours and completely failed within 12.
The sensors developed at another lab at Harvard include embedded channels filled with a conductive liquid that changes in resistivity as the silicone is stretched.
First they use this method to create the desired structure a lattice out of a polymer.
The polymer lattice is coated then with a ceramic such as alumina. Oxygen plasma etches out the polymer leaving behind a lattice of hollow ceramic tubes.
Greer s lab showed that by changing the thickness of the tube walls it s possible to control how the material fails.
While the lithium-polymer batteries used in smartphones today are somewhat flexible they can survive being bent many times.
The design uses new materials from Light Polymers, a startup based in South San francisco. In an LCD,
Technology presented by Light Polymers at the 2014 Emerging Display Technologies conference in San jose this week could allow switching in less than 60 microseconds.
Marc Mcconnaughey, CEO of Light Polymers, says the company materials are being evaluated by flat-panel display manufacturers.
Chernev and co aim to start by analysing the resonances of each of the monomer
The signatures from these should provide a kind of alphabet from which to work out the resonances of more complex polymers.
Imprint Energy, of Alameda, California, has been testing its ultrathin zinc-polymer batteries in wrist-worn devices
Ho developed a solid polymer electrolyte that avoids this problem, and also provides greater stability,
teixobactin has two non-protein cell wall targetsighly conserved portions of two precursor polymers of peptidoglycan and cell wall teichoic acid.
Last year, the same team created a polymer, inspired by the human blood-clotting system, which patched holes up to 3cm wide.
Last year, the same team created a polymer, inspired by the human blood-clotting system, which patched holes up to 3cm wide.
and used it to desorb material from a thin film of organic molecular glass or polyphthalamide polymer (PPA).
#Bucktown Polymers water soluble Rinse Out 3d prinintg Resin (ROR) could replace lost wax casting Jun 1,
More recently, researchers at Bucktown Polymers have developed a new type of 3d printing material that cures rapidly
Existing polymer or wax-based offerings have up to a 12-hour long burnout process whereas the ROR is capable of being rinsed with water in a matter of minutes.
it is also eliminating the problem of unintended patterns that can be created from other materials due to polymer expansions or leftover ash and residue.
Those interested in finding out more about Rinse Out Resin can head over to Bucktown Polymers.
Involving special bio-inks made from biocompatible polymers and cells, these could be used for 3d printing just about everything in the human body, from cartilage, to bone structures and theoretically even entire new organs.
and another polymer like material together slowly, but this kit can simply be mixed and subsequently 3d printed.
Hydrogels, which are defined by water molecules that are encased in rubbery polymer networks that provide shape
added David Mooney, a professor of bioengineering at Harvard university. his builds off earlier work using other polymer systems,
but the demonstration that one can achieve similar mechanical performance with a common biomedical polymer is a substantial advance iit is also quite exciting that these new tough gels can be used for 3d printing,
It a unique mixture of 40%grinded wood particles in combination with the modified and proven easy-to-print binding polymers used for our Easyfil#filaments.
the structure of a silicone wafer changed by dramatically increasing the amount of silver printed lines
a UV sensitive polymer. he material is nonflammable, and has good structural strength similar to ABS materials commonly used in 3d printing.
What's more, the rest of the ink consists of a biocompatible biodegradable polyester (PLG) that,
But it been a mostly polymer composite with graphene making up less than 20 percent of the volume
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.
the elasticity of the material can be tuned by changing the portions of graphene and polymers.
along with Eastman Amphora (TM) 3d polymer bonding abilities, will ensure multipart designs accomplish the desired goal. he material will be available this summer in a variety of colors,
made with Eastman Amphora (TM) 3d polymer, will rank among the best premium materials on the market. hough the quality of both Lulzbot
and collaborating with them allows us to bring Eastman Amphora (TM) 3d polymer to a broader audience in the right way. t the same time as this speaks of the firm foundation that Aleph Objects
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011