Sentences with phrase «of organic polymers»

The information they gather could help improve the design and performance of organic polymers: flexible, stretchable, biocompatible electronic materials that could be used to make everything from printable solar cells to brain implants that restore movement to paralyzed limbs.

In order to make these materials more competitive, scientists need to develop a better understanding of organic polymers» nanostructures.

Not exact matches

«Made of a patented material (10 % food - grade polymer, 90 % air) that does not off - gas or leach toxins, the Newton provides support while allowing the mattress to have unprecedented breathability (which waterproof mattresses, even the organic ones, lack).»

However, the toys themselves provide a source of nutrients: the plastic materials — often low - quality polymers — release substantial amounts of organic carbon compounds.

The team subsequently developed an adsorbent of fluorine - based porous organic polymer that met all the conditions listed above.

Though all my work required the making of new molecules, individual projects ranged from designing organic compounds that control the reactivity of metal ions to generating conductive polymers for lithium - ion batteries.

It was a color that both men knew well — the color of complex polymers made up of organic molecules.

The researchers focused on a hybrid membrane that is part polymer and part metal - organic framework, which is a porous three - dimensional crystal with a large internal surface area that can absorb enormous quantities of molecules.

These hybrids harness the carbon dioxide selectivity of metal - organic frameworks while maintaining the processability of polymers.

They analyzed the samples for colored dissolved organic matter, which contains light - absorbing molecules from the breakdown of plant polymers such as lignin.

When I was at Bell Labs, I was surrounded by amazing organic chemists who could cook up all kinds of interesting polymers and organic molecules that we could use to build transistors.

It started with a fairly fundamental study of polymers, the long chains that certain organic molecules form.

Such rearrangements are now a staple of organic chemists in both academia and industry for the production of everything from pharmaceuticals and agrochemicals to pheromones and polymers.

«When these polymers come to be used in organic light - emitting diodes, their various spatial structures can be utilized to precisely control the colour of the light emit from the OLEDs,» explained physicist Dominic Raithel (M.Sc.)

«Benefitting from the ethyl acetate - based electrolyte and organic polymers electrodes, the rechargeable battery can work well at the ultra-low temperature of -70 degrees Celsius,» Xia says.

«Our material fully extracts the pollutant out of water,» said William Dichtel, an expert in organic and polymer chemistry who led the study.

Some researchers have made polymer coatings that become more wettable in the presence of water and more water - repellant in the presence of organic solvents.

And as a basis for gas sensors in particular, carbon nanotubes combine advantages (and avoid shortcomings) of more established materials, such as polymer - based organic electronics and solid - state metal - oxide semiconductors.

Taking their cue from nature, where structurally well - defined biopolymers are the norm, e.g. in DNA and genes where slight variations to the order of a small number of organic molecules gives rise to the diverse spectrum of life, they have developed a self - sorting strategy that regulates the order molecules take when forming long chain polymers.

Henning Sirringhaus of Cambridge and his colleagues describe in Science how they fashioned this polymer into an organic transistor and used it to drive a conventional polymer - based LED built directly on top.

The polymer sucked up a variety of other small organic molecules faster than current materials, as well.

Once healed, the polymer substrate of the self - healing sensor demonstrates sensitivity to volatile organic compounds (VOCs), with detection capability down to tens of parts per billion.

An organic polymer analog of a metal / insulator / metal capacitor has been constructed with the latter method.

Researchers have long recognized 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 natural version, also called nacre, is found on the inner shell of some molluscs, where it is built up of layers of the mineral aragonite separated by organic polymers such as chitin.

While conventional LEDs use silicon semiconductors, OLEDs in some of the latest cell phones and TVs are made with «pi - conjugated polymers,» which are plastic - like, organic semiconductors made of a chain of repeating molecular units.

Polyaniline belongs to a class of compounds known as organic conducting polymers.

They also describe how two kinds of «nano - engines» that create organic carbon and polymers — energy currency of the first cells — could have been assembled from inorganic minerals.

In a semi-transparent solar cell module as shown in the photograph, electrodes with two variants of the polymer PEDOT: PSS (commonly used in organic electronics) are used, where one acts as the anode and the other is modified to become the cathode.

It involves generating aerosol droplets that consist of a solid core and a shell made of organic materials that mimic some of the polymers one would find in electronics.

The paper by polymer scientists Soo - Young Park and A-Ra Cho of Kyungpook National University in Daegu, South Korea, describes a method to create a type of so - called «hybrid» film, composed of both inorganic and organic materials.

Polymer LEDs (PLEDs)-- a form of the organic light - emitting - diode displays now going into extravagantly expensive, vanishingly thin televisions — are mere microns thick and pliable.

A team of materials chemists, polymer scientists, device physicists and others at the University of Massachusetts Amherst today report a breakthrough technique for controlling molecular assembly of nanoparticles over multiple length scales that should allow faster, cheaper, more ecologically friendly manufacture of organic photovoltaics and other electronic devices.

Chemists at The University of Texas at Arlington have been the first to demonstrate that an organic semiconductor polymer called polyaniline is a promising photocathode material for the conversion of carbon dioxide into alcohol fuels without the need for a co-catalyst.

A few months ago, researchers from the Lawrence Berkeley National Laboratory in California for the first time succeeded in observing the cross-linking of polymer molecules in the active layer of an organic solar cell during the printing process.

«In particular, we will work on the developments of RTP molecules and polymers with potential of finding high - tech applications in bioimaging, optical recording, anti-counterfeiting, and afterglow organic LEDs.»

When Hubbes exposed vaccinated trees to the virulent strain of the fungus, he found that the trees were ready to mount a defence, trapping the fungus in infected cells by hardening the walls of these cells with lignin — an organic polymer in plant cell walls that imparts rigidity.

Sukegawa, T., Masuko, I., Oyaizu, K. & Nishide, H. Expanding the dimensionality of polymers populated with organic robust radicals toward flow cell application: synthesis of TEMPO - crowded bottlebrush polymers using anionic polymerization and ROMP.

After fabrication, the researchers placed samples of the microswimmers inside a simple chamber fabricated from PDMS, a common silicon - based organic polymer.

Here we describe an affordable, safe, and scalable battery system, which uses organic polymers as the charge - storage material in combination with inexpensive dialysis membranes, which separate the anode and the cathode by the retention of the non-metallic, active (macro-molecular) species, and an aqueous sodium chloride solution as the electrolyte.

Abstract: Although it is known that molecular interactions govern morphology formation and purity of mixed domains of conjugated polymer donors and small - molecule acceptors, and thus largely control the achievable performance of organic solar cells, quantifying interaction - function relations has remained elusive.

Yet she must have smiled when, while processing an image of a polymer blend required to produce a new type of organic solar cell, at a certain point she could make out more and more clearly the outline of a penguin.

Polymers (POL): The study and development of polymers; materials that have a molecular structure consisting chiefly or entirely of a large number of similar units bonded together, e.g., many synthetic organic materials used as plastics andPolymers (POL): The study and development of polymers; materials that have a molecular structure consisting chiefly or entirely of a large number of similar units bonded together, e.g., many synthetic organic materials used as plastics andpolymers; materials that have a molecular structure consisting chiefly or entirely of a large number of similar units bonded together, e.g., many synthetic organic materials used as plastics and resins.

The field of covalent organic frameworks is only a decade old, and much needs to be learned about how the porous polymers form and how to keep them stable.

To create hollow and solid microstructures, the researchers used an organic polymer precursor doped with photoinitiator made of off - the - shelf chemical components.

Technical details of these research topics focus on light - induced electron transfer reactions, both at surfaces and in transition - metal complexes, surface chemistry and photochemistry of semiconductor / liquid interfaces, novel uses of conducting organic polymers and polymer / conductor composites, and development of sensor arrays that use pattern recognition algorithms to identify odorants, mimicking the mammalian olfaction process.

Plastic solar cells, based on blends of conducting organic polymers, are of interest for making lightweight and cheap solar cells.

Kitagawa described how porous coordination polymers (PCPs) / metal - organic frameworks (MOFs) have been found to be able to store large volumes of gases, which has in turn sparked studies around the world on the mass storage of carbon dioxide and methane.

With the development of plastic materials by organic chemists during the Second World War, the capacitor industry began to replace paper with thinner polymer films.

His other topics of research concern the field of supramolecular chemistry, crystal engineering and fabrication of hybrid organic — inorganic functional materials like coordination polymers based on organometallic nodes or open metal — organic frameworks with controllable size and morphology with potential applications in storage and separation of gases and small organic molecules.