Sandwiched between the two electrodes is a polymer film that acts as a reservoir of charged ions, similar to the role of electrolyte paste in a battery.
the polymer oozes into the tiny pores in much the same way that melted cheese soaks into the nooks and crannies of artisan bread in a Panini.
When the polymer cools and solidifies it forms an extremely strong mechanical bond.""The biggest problem with designing load-bearing supercaps is preventing them from delaminating,
"Combining nanoporous material with the polymer electrolyte bonds the layers together tighter than superglue.""The use of silicon in structural supercapacitors is suited best for consumer electronics and solar cells,
and polymer material to simulate a live explosive in the lab) and identical plastic containers filled with air water or a clay material.#
C Three double-braided polymer tethers prevent the airship from drifting away. One contains copper conductors that transmit power collected as high as 2000 feet down to a battery or the grid.
At the crown of the helmet a flexible panel that has a polycarbonate shell attaches with a living hinge.
Recent solutions have used shape memory alloys (SMAS) pneumatic actuators and electroactive polymers each with their own advantages but also with disadvantages.
or single dielectric elastomer actuators (DEAS) on top of each other in an antagonistic configuration in order to create an actuator that allows bidirectional actuation and passive folding.
Each DEA consists of a thin elastomer membrane between two compliant electrodes the opposing charges on each electrode generate an electrostatic force (Maxwell stress) which squeezes the membrane causing thinning and expansion
Further by using a silicon type elastomer a fast response speed and good positioning control can be achieved.
and polymers to make it as light and flexible as possible the exoskeleton weighs in at around 60kg.
so the team is working on creating a sensitive polymer skin to make the appearance of the hand more realistic and more usable in everyday life situations.
Although lightweight and mechanically robust the ethyl polypropylene foam chassis we used in the proof-of-concept vehicle was difficult to manufacture
Finally a high energy density Lithium-Ion Polymer battery is used to power all the electronics and actuators contained onboard.
and a two-component thermosetting polymer to build up objects on any working surface that the polymer can adhere to including floors walls and ceilings without the need for additional support structures.
In our case, we used a conductive polymer for the actuators. A feature of these actuators is theye powerful, yet extremely compact.
The 200nm thick implant is made predominantly of silicone covered with 35nm thick microcracked gold conducting tracks
The electrodes contained within the implant are made of a unique mix of silicone and platinum microbeads allowing the implant to function
Robbe Mini Wing RC styrofoam airframe Electronics: Pixhawk PX4 Flight Management Unit Battery: Thunder Power RC G6 Pro Lite 25c Lipo 350mah 2s Motors:
London, is made of two cylindrical chambers of silicon elastomers that extend and bend. Each cylinder contains a sack of granular material embedded in a flexible membrane that is also packed in a vacuum.
The motors are six-micrometer-long tubes with an outer polymer surface that holds a chemical enzyme carbonic anhydrase designed to speed up the reaction between carbon dioxide and water and form bicarbonate.
If engineers require a polymer material to have specific properties strength, resilience, size to name a few then we need to question
or quality controlled-based on their polymerization capacity, more specifically their ability to transition from a fluid to fibril matrix state.
Geniphys collagen polymers allow scientists to grow cells within a highly reproducible, physiologically relevant 3-D collagen fibril matrix that they can customize.
Harbin's startup Geniphys is currently manufacturing research-grade collagen polymer and standardized polymerization kits that support creation and customization of 3-D cell culture systems.
It is a gel-like material called an electroactive polymer that can potentially mimic human movement
Rasmussen is a synthetic polymer chemist, who founded RAS Labs in 2003. She began working with PPPL in the early stages of the company from 2007 through 2011.
"Rasmussen holds a Phd in chemistry, specialty polymer chemistry, from Virginia Tech and a master's degree in biology, specialty biophysics, from Purdue University.
The microfluidic chip was designed by Autocad software and manufactured from a widely used silicon-based organic polymer known as PDMS.
#New Polymer Gel Could Create Edible Devices for Ultra-Long Drug Delivery A team of scientists has developed a polymer gel that could allow for the development of long-acting devices that reside in the stomach,
However, these devices, often created with nondegradable elastic polymers, bear an inherent risk of intestinal obstruction as a result of accidental fracture or migration.
Now, researchers at MIT Koch Institute for Integrative Cancer Research and Massachusetts General Hospital (MGH) have created a polymer gel that overcomes this safety concern
This polymer is ph-responsive: It is stable in the acidic stomach environment but dissolves in the small intestine near-neutral ph,
and folding of devices into easily ingestible capsules meaning this polymer can be used to create safe devices designed for extremely prolonged residence in the stomach. ne of the issues with any device in the GI TRACT is that there the potential for an obstruction,
of this new polymer gel for creating gastric devices. Shiyi Zhang, a postdoc at the Koch Institute, is the paper lead author.
the researchers were interested in developing a polymer with elastic properties. n elastic device can be folded into something small,
But the size and shape of existing devices with elastic polymers have been limited by safety concerns,
Because of this, the researchers wanted their polymer to also be enteric or have a mechanism that would enable it to pass through the stomach unaltered before disintegrating in the intestines. o lower any possible risk of obstruction,
the researchers synthesized an elastic polymer and combined it in solution with a clinically utilized enteric polymer.
Adding hydrochloric acid and centrifuging the solution resulted in a flexible, yet resilient, polymer gel that exhibits both elastic and enteric properties.
The researchers used the gel polycaprolactone (PCL), a nontoxic, degradable polyester, to construct several device prototypes.
They first created ring-shaped devices by using the gel to link arcs of PCL in a circular mold.
the polymer gel dissolved, allowing for the safe passage of the small PCL pieces without obstruction.
Improving adherence The combined enteric and elastic properties of this polymer gel could significantly improve the design and adoption of gastric-resident devices.
With further work in adjusting the polymer composition or the design of the system they say that they could tailor devices to release drugs over a specific timeframe of up to weeks or months at a time.
The researchers improved on the conductivity of the graphene by coating it with a thin layer of a polymer that also served as an adhesion layer to the perovskite active layer during the lamination process.
The researchers improved on the conductivity of the graphene by coating it with a thin layer of a polymer that also served as an adhesion layer to the perovskite active layer during the lamination process.
treat cancer, strengthen polymers, sterilize medical devices, and even to make diamonds green and pearls black.
The process begins with liquid polymer and a collector plate. Voltage is applied to the polymer and plate,
which creates a pull to draw the liquid polymer out of its container toward the plate.
As the polymer travels, it becomes increasingly thin. So thin, in fact, that at some point
air resistance actually begins to influence the flow of the liquid, causing the now-thin polymer to become convoluted as it falls onto the collector plate.
During the trip, the polymer solution also converts to a solid. The resulting pattern is a 3d mat of a seemingly random, extremely thin fiber array.
Screen Shot 2015-05-04 at 7. 24.11 AM This filtration membrane is highly flexible and durable
Nebia flat, circular shower head is made of a high-density polymer with nozzles that spray out micro droplets.
The organically designed polymers respond to energetic events such as space debris or bullets rapidly hitting the material.
This is because the polymer reacts to heating. s the bullet goes in it actually raises the temperature around the region,
and it is working to improve on the tensile strength of these polymers, but there is progress here.
The microfluidic chip was made of a silicon-based polymer, polydimethylsiloxane (PDMS), and had microvalves and fluidic channels to transport the sample between nodes for various sample preparation steps.
which is actually the larva of a beetle, eats Styrofoam and other forms of polystyrene,
"In the lab, 100 mealworms ate between 34 and 39 milligrams of Styrofoam-about the weight of a small pill-per day.
The worms converted about half of the Styrofoam into carbon dioxide, as they would with any food source.
Mealworms fed a steady diet of Styrofoam were as healthy as those eating a normal diet,
the larvae of Indian mealmoths, have microorganisms in their guts that can biodegrade polyethylene, a plastic used in filmy products such as trash bags.
however, because Styrofoam was thought to have been non-biodegradable and more problematic for the environment. Researchers led by Criddle,
whether microorganisms within mealworms and other insects can biodegrade plastics such as polypropylene (used in products ranging from textiles to automotive components),
which is actually the larva of a beetle, eats Styrofoam and other forms of polystyrene,
"In the lab, 100 mealworms ate between 34 and 39 milligrams of Styrofoam-about the weight of a small pill-per day.
The worms converted about half of the Styrofoam into carbon dioxide, as they would with any food source.
Mealworms fed a steady diet of Styrofoam were as healthy as those eating a normal diet,
the larvae of Indian mealmoths, have microorganisms in their guts that can biodegrade polyethylene, a plastic used in filmy products such as trash bags.
however, because Styrofoam was thought to have been non-biodegradable and more problematic for the environment. Researchers led by Criddle,
whether microorganisms within mealworms and other insects can biodegrade plastics such as polypropylene (used in products ranging from textiles to automotive components),
so long as production isn't moved offshore as it was with silicone cells, he said. Some silicon cells were invented in Australia
The team demonstrated that silicone elastomers can be printed seamlessly into gradient architectures composed of soft and rigid regions (meaning that for wearable devices,
is pipe-shaped polymer structure with a square cross-section, the inside of which is divided into five adjoining resonance chambers connected via small windows. he resonance achieved by this structure intensifies the evanescent waves,
They attached the 3d printed polymer structure along with microphones, to a robot close to the object surface,
and the method needs to be refined before it can be applied in practice. ecause the size of the polymer structure has to be adjusted to the operational wavelength,
Angelini and co were able to produce a kind of silicone jellyfish and suspended networks of veins written entirely out of living human aortic cells.
Basically, the OLO uses photopolymer 3d printing technology, wherein liquid polymer hardens when exposed to a light sourcehich in SLA
the polymer foam can be poured into a mold to form a soft yet solid material.
The porous channels are created by mixing salt with the rubbery elastomer when still in the liquid stage.
The salt is then removed upon the elastomer hardening. To seal an organ or prosthetic so air or fluid can be pumped through it without escaping,
the outside of the organ is coated with the polymer, minus the salt. This prevents the external layer from also becoming permeable and eakingfluid.
The silicone on the outside of the heart is yet to be approved by the FDA, so it must be replaced
In a separate study published last month, Shepherd and his team developed a 3d printed elastomer
and encapsulated into a agemade from a strong 3d printed elastomer with the necessary flexibility to fit to the contours of the body.
PET (Polyethylene terephthalate) is one of the most widely used thermoplastics there is. It is used to make plastic drink bottles as well as many other products (including fabrics) and for packaging purposes
3d printing bone requires a combination of a reabsorbable material such as a biodegradable polymer and an inorganic bioactive phase material such as ceramics.
The polymer they used was a material that is rather easy to 3d print and that was approved FDA for use in implants:
and polymers are used widely as bone regenerators and biocompatible functional materials in tissue engineering, as they are very similar to the natural bone tissue,
by adding conducting CNTS into the bioprinted polymer and mineral prosthetic bone implant, you can stimulate the regrowth of the actual bone cells.
while the polymer-based support dissolves efficiently. These research lines also involve the production and study of bioceramic systems for the controlled release of biotechnological and antitumoral species
The multidisciplinary team was able to 3d print custom silicone guides infused with biochemical cues that proved to effectively regrow nerve tissue in lab rats.
the silicone guide was saturated with chemical cues (colored red and green in the video above) to trigger motor and sensory nerve growth.
With their own version of 4d printing, Fergal B. Coulter and Anton Ianakiev are exploring the fabrication of artificial muscle by creating a system for producing seamless tubular silicone membranes with dielectric elastomer actuators (DEA
a form of electroactive polymer that induces a change in form. Coulter and Ianakiev describe the DEAS as ssentially flexible capacitors sending low energy electric signals to the flexible tubular structure
The material used was a tough and flexible silicone material called Shore 73a which is composed of thixotropic, a bit of kaolin mineral filler (10),
Each surface layer of the 3d printed silicone was coated with graphite, capable of acting as a DEA electrode.
The team inflicted mechanical strain on these silicone muscles during the process by inflating the balloon-like mandrel structure,
the silicone was able to make an evenly distributed return to its original shape. The energy used in the shape change was kept to a minimum because of the compression within the 3d printed tubular structure.
Using robust silicone material, DEA electrodes, and a modified 3d printing system, the research team was able to not only replicate the structure of the muscle,
including silicones, hydrogels, colloids, and living cells. For example, they have used this process to create complex multi-scale structures using PVA hydrogels and fluorescent colloids.
The 3d printed elastomer body of the Spongesuit bikini has a unique, spiderweb-like design, and acts as the structure for the pongetechnology filler.
Plastics are made essentially polymers from long chains of carbon and other elements. They are relatively inexpensive to manufacture and their versatility,
But, because polymers and plastics are so cheap to manufacture the economic benefit of recycling can be marginal.
the use of the waste polymers needed to be more cost-effective than traditional methods,
On the path to commercialisation, her team found an even more effective approach was to use the polymers in another type of waste used car tyres.
Veena's team perfected the technique of'polymer injection'for electric arc furnaces. In Australia alone, this technology has resulted so far in over two million used car tyres being converted from waste into a valuable feedstock for steel production.
***a polymer network that can absorb water and expand significantly; the amount of expansion depends on the chemical properties of the gel and the environment around it.
***Hydrogels are linked cross networks of polymers that can absorb various amounts of water depending on their chemical composition and structure.
Photo by Anurag Mathur, Healy Lab) Instead, the research team led by bioengineering professor Kevin Healy is presenting a network of pulsating cardiac muscle cells housed in an inch-long silicone device that effectively models human heart tissue,
#Touch-Sensitive Flexible Silicone Stickers Worn on the Skin Can Help Control Mobile devices Someone wearing a smartwatch can look at a calendar
They have developed touch-sensitive stickers made from flexible silicone and electrically conducting sensors that can be worn on the skin.
The silicone used to fabricate the sensor patches makes them flexible and stretchable.''This makes them easier to use in an everyday environment.
and nanoparticles to naturally occurring plant cells, biological polymers and tissues. The first application in which this microscope was deployed in the DOE Bioenergy Science Center was for analyzing plant cell walls,
and chemically grafted nanomembranes loaded with iron oxide nanoparticles, in the Journal of Applied Polymer Science, July 14.
the pesticide and polylactic acid a polymer derived from corn. The materials are derived biodegradable and from renewable resources. he chemical is protected,
But perhaps most importantly, EPGL has invented solutions that will enable microelectronics to be placed into modern Silicone Hydrogel contact lenses for mass market production,
2015 that it has solved for the critical Silicone Hydrogel mass market production challenges as EPGL has."
such as whether it exists as a monomer, or combined with another copy into a dimer,
The monomer version is unzipped and is likely not helical; it probably more like a string.
and monomer form of the protein block a different number of ions, so we see a different drop in current
this templated polymerization approach paves the way for the design of novel one-dimensional nanomaterials. Nanosized materials such as nanowires offer unique properties that are completely distinct from those of the bulk materials.
Hisanori Shinohara from Nagoya University in Japan and his colleagues have developed a method that uses carbon nanotubes as a reaction vessel for the templated polymerization of linear-chain nanomaterials.
The idea was that during polymerization, the small precursor molecules would naturally adopt the one-dimensional structure of the tubes
so that the polymerization could terminate or become uncontrolled. By using this method, Shinohara and his colleagues were able to synthesize a one-dimensional nanodiamond polymeric structure by a relatively simple annealing technique.
"The present template-based approach for the synthesis of linear-chain diamondoid polymers is entirely different from conventional chemical approaches."
as a precursor molecule and building block for polymerization. This molecule was brominated at either side so that, upon addition of iron nanoparticles,
In a normal chemical polymerization reaction, the formed radicals would abstract hydrogen for termination reactions, but:"
either be transformed into the linear-chain polymers or into amorphous carbon.""As a result, the structures formed in the 1-nm-sized tubes were a polymeric chain of nanodiamondoids,
the formed carbon nanotubes filled with the nanodiamondoid polymer look like macaroni filled with spaghetti. In order to extract the inner polymer,
a solution-phase sonication/extraction can be applied, the group reports. The big advantage of the new method is the simplicity and specificity of the formation of the one-dimensional nanostructured polymer chain.
This technique will certainly attract the attention of materials scientists s
#Researchers Demonstrate Breakthrough Method for Getting Nanoparticles to Self-Assemble The medium is the message.
Enclosed within the platelet membranes are made nanoparticle cores of a biodegradable polymer that can be metabolized safely by the body.
The nanoparticles can be packed with many small drug molecules that diffuse out of the polymer core and through the platelet membrane onto their targets.
Polymer molecules are being employed for these nano-dispenser systems because scientists can change their size,
Both synthetic and natural polymers play an essential role in most people lives every day ranging from familiar synthetic plastics,
The work, published Monday in the Proceedings of the National Academy of Sciences, pairs gold nanomesh with a stretchable substrate made with polydimethylsiloxane
It is made of a silicon-based polymer, polydimethylsiloxane (PDMS), and has microvalves and fluidic channels to transport the sample between nodes for various sample preparation steps.
what ratio of carbon black to lithium iron phosphate to polymer binder to use; what order to add them in;
Free radicals are produced during the fire cycle as a polymer degrades, and their removal is critical to stopping the fire from continuing to spread.
which blocks fire's access to its fuel source--the polymer. The synergistic combination of both these processes makes polydopamine an attractive and powerful flame retardant.
which consists of one polystyrene lens and two polymethyl methacrylate aspheric lenses. The lenses were enclosed then in an all-plastic, 3-D-printed microscope housing and objective.
printers are adapted to produce pharmaceutical compounds rather than polymers which are used more usually. Such methods are already proving very useful in healthcare with doctors using the system to create customised implants for patients with injuries or other conditions.
"We can now study the atomic details of microtubule polymerization and depolymerization to develop a complete description of microtubule dynamics,
But the nanoclews are coated with a positively charged polymer that breaks down the endosome, setting the nanoclew free inside the cell.
while they were initially designing photosensitive polymers for drug delivery applications. Once they came up with a polymer that responded to UV LIGHT,
they realized that this did not permeate well through skin and could cause damage to healthy cells. e
hydrophilic (water-loving) shell and a hydrophobic (water-fearing) spherical core. he polymers are synthetized to ensure that
polymers are released into the water. While the polymer released (polyethylene glycol) is recognized as safe and used in various food, pharmaceutical and cosmetics products,
it would be ideal if no material was released or if it could be used by parts of the ecosystem to further minimize environmental impact.
To circumvent this problem the team developed a simple method to densely coat the nanoparticles with a nonsticky polymer called PEG,
As a next step, Bertrand said it would be interesting to design a system where no polymer is released,
which incorporates nanoparticles into polymers through a technique called electrospinning, was developed by a team from the University of North Texas System College of Pharmacy,
which consisted of one polystyrene lens and two polymethyl methacrylate aspheric lenses, the researchers used a single-point diamond turning lathe.
The micromotors have an outer polymer surface that holds the enzyme carbonic anhydrase, which speeds up the reaction between carbon dioxide and water to form bicarbonate.
Significant efforts in recent years have focused on developing lightweight polymer matrix composites to replace heavier metal-based components in automobiles and marine vessels.
By adding composites made of a polymer and reduced graphene oxide, the films are able to detect touch
and is covered by a scratch resistant hardened glass. the dial has a rechargeable lithium polymer battery,
Plumestop is composed of very fine particles of activated carbon (1-2 m) suspended in water through the use of unique organic polymer dispersion chemistry.
and encapsulates it in a netlike cage made of 3d printed elastomer that forms to the body.
The groups created brush-shaped polymers with side chains that resemble bristles. From there they attached DNA to the tips of these bristles
"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.
which"poisons"the desired reactions, for example in polymer electrolyte membrane (PEM) fuel cells, which are the leading contenders for small-scale and mobile power generation not based on batteries or combustion engines.
in order to facilitate downstream polymer production. The current industrial catalyst for butadiene hydrogenation uses palladium and silver.
Then they seeped a polymer between the silicon nanowire pillars. After the plastic support solidified they etched away the silicon backing, leaving bull's-eye patterned black silicon embedded in supple plastic.
Then they seeped a polymer between the silicon nanowire pillars. After the plastic support solidified they etched away the silicon backing, leaving bull's-eye patterned black silicon embedded in supple plastic.
Traditional 3d printing with plastics is done by heating a polymer, then applying it layer by layer to build an object.
It sandwiched between two polymer panels to form an airtight seal. The resin remains liquid as long as that seal remains unbroken.
This is why the Stanford researchers placed the aluminum anode, a graphite cathode and an ionic liquid electrolyte inside of a polymer-coated pouch.
#quid teethplastic self-heals with water Scientists derived the genetic code of squid ring teeth to develop a polymer that self-heals with a single drop of water.
The polymer can then either be molded using heat or cast by solvent evaporation. The two-part material is a copolymer consisting of an amorphous segment that is soft and a more structured molecular architecture.
The structured portion consists of strands of amino acids connected by hydrogen bonds to form a twisted and/or pleated sheet.
This part also provides strength for the polymer, but the amorphous segment provides the self-healing.
Healing wounds The researchers created a dog-bone shaped sample of the polymer and then cut it in half.
A new polymer structure, developed and produced with 3d printing by postdoc Miguel Molerón, is central to the new method.
They attached the polymer structure with the microphones to a robot very close to the object surface,
it would also be interesting to adapt the method for ultrasound that has shorter wavelengths. ecause the size of the polymer structure has to be adjusted to the operational wavelength,
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