Polymers. Medical search

Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).

Polymers synthesized by living organisms. They play a role in the formation of macromolecular structures and are synthesized via the covalent linkage of biological molecules, especially AMINO ACIDS; NUCLEOTIDES; and CARBOHYDRATES.

Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.

A methodology for chemically synthesizing polymer molds of specific molecules or recognition sites of specific molecules. Applications for molecularly imprinted polymers (MIPs) include separations, assays and biosensors, and catalysis.

Implants constructed of materials designed to be absorbed by the body without producing an immune response. They are usually composed of plastics and are frequently used in orthopedics and orthodontics.

Polymers of ETHYLENE OXIDE and water, and their ethers. They vary in consistency from liquid to solid depending on the molecular weight indicated by a number following the name. They are used as SURFACTANTS, dispersing agents, solvents, ointment and suppository bases, vehicles, and tablet excipients. Some specific groups are NONOXYNOLS, OCTOXYNOLS, and POLOXAMERS.

Forms to which substances are incorporated to improve the delivery and the effectiveness of drugs. Drug carriers are used in drug-delivery systems such as the controlled-release technology to prolong in vivo drug actions, decrease drug metabolism, and reduce drug toxicity. Carriers are also used in designs to increase the effectiveness of drug delivery to the target sites of pharmacological actions. Liposomes, albumin microspheres, soluble synthetic polymers, DNA complexes, protein-drug conjugates, and carrier erythrocytes among others have been employed as biodegradable drug carriers.

Polymers of organic acids and alcohols, with ester linkages--usually polyethylene terephthalate; can be cured into hard plastic, films or tapes, or fibers which can be woven into fabrics, meshes or velours.

The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.

Characteristics or attributes of the outer boundaries of objects, including molecules.

Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.

Chemical reaction in which monomeric components are combined to form POLYMERS (e.g., POLYMETHYLMETHACRYLATE).

A biocompatible polymer used as a surgical suture material.

Dosage forms of a drug that act over a period of time by controlled-release processes or technology.

Colorless, odorless crystals that are used extensively in research laboratories for the preparation of polyacrylamide gels for electrophoresis and in organic synthesis, and polymerization. Some of its polymers are used in sewage and wastewater treatment, permanent press fabrics, and as soil conditioning agents.

Polymerized forms of styrene used as a biocompatible material, especially in dentistry. They are thermoplastic and are used as insulators, for injection molding and casting, as sheets, plates, rods, rigid forms and beads.

Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.

Relating to the size of solids.

Strongly cationic polymer that binds to certain proteins; used as a marker in immunology, to precipitate and purify enzymes and lipids. Synonyms: aziridine polymer; Epamine; Epomine; ethylenimine polymer; Montrek; PEI; Polymin(e).

Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group.

The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)

Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.

Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.

Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance.

The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS.

Usually inert substances added to a prescription in order to provide suitable consistency to the dosage form. These include binders, matrix, base or diluent in pills, tablets, creams, salves, etc.

Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.

The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily.

The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.

Materials fabricated by BIOMIMETICS techniques, i.e., based on natural processes found in biological systems.

A polymer prepared from polyvinyl acetates by replacement of the acetate groups with hydroxyl groups. It is used as a pharmaceutic aid and ophthalmic lubricant as well as in the manufacture of surface coatings artificial sponges, cosmetics, and other products.

A peptide which is a homopolymer of lysine.

Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.

Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.

Materials which have structured components with at least one dimension in the range of 1 to 100 nanometers. These include NANOCOMPOSITES; NANOPARTICLES; NANOTUBES; and NANOWIRES.

A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.

The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.

Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.

The application of scientific knowledge or technology to pharmacy and the pharmaceutical industry. It includes methods, techniques, and instrumentation in the manufacture, preparation, compounding, dispensing, packaging, and storing of drugs and other preparations used in diagnostic and determinative procedures, and in the treatment of patients.

A polyvinyl polymer of variable molecular weight; used as suspending and dispersing agent and vehicle for pharmaceuticals; also used as blood volume expander.

A group of thermoplastic or thermosetting polymers containing polyisocyanate. They are used as ELASTOMERS, as coatings, as fibers and as foams.

A group of glucose polymers made by certain bacteria. Dextrans are used therapeutically as plasma volume expanders and anticoagulants. They are also commonly used in biological experimentation and in industry for a wide variety of purposes.

Acids derived from monosaccharides by the oxidation of the terminal (-CH2OH) group farthest removed from the carbonyl group to a (-COOH) group. (From Stedmans, 26th ed)

Water swollen, rigid, 3-dimensional network of cross-linked, hydrophilic macromolecules, 20-95% water. They are used in paints, printing inks, foodstuffs, pharmaceuticals, and cosmetics. (Grant & Hackh's Chemical Dictionary, 5th ed)

Term used to designate tetrahydroxy aldehydic acids obtained by oxidation of hexose sugars, i.e. glucuronic acid, galacturonic acid, etc. Historically, the name hexuronic acid was originally given to ascorbic acid.

A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

A nonionic polyoxyethylene-polyoxypropylene block co-polymer with the general formula HO(C2H4O)a(-C3H6O)b(C2H4O)aH. It is available in different grades which vary from liquids to solids. It is used as an emulsifying agent, solubilizing agent, surfactant, and wetting agent for antibiotics. Poloxamer is also used in ointment and suppository bases and as a tablet binder or coater. (Martindale The Extra Pharmacopoeia, 31st ed)

The development and use of techniques to study physical phenomena and construct structures in the nanoscale size range or smaller.

Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.

Polymers where the main polymer chain comprises recurring amide groups. These compounds are generally formed from combinations of diamines, diacids, and amino acids and yield fibers, sheeting, or extruded forms used in textiles, gels, filters, sutures, contact lenses, and other biomaterials.

Polysaccharides found in bacteria and in capsules thereof.

The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.

A generic term for all substances having the properties of stretching under tension, high tensile strength, retracting rapidly, and recovering their original dimensions fully. They are generally POLYMERS.

A polynucleotide formed from the ADP-RIBOSE moiety of nicotinamide-adenine dinucleotide (NAD) by POLY(ADP-RIBOSE) POLYMERASES.

A polysaccharide with glucose units linked as in CELLOBIOSE. It is the chief constituent of plant fibers, cotton being the purest natural form of the substance. As a raw material, it forms the basis for many derivatives used in chromatography, ion exchange materials, explosives manufacturing, and pharmaceutical preparations.

Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)

Polysaccharides composed of repeating glucose units. They can consist of branched or unbranched chains in any linkages.

A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed)

A spectroscopic technique in which a range of wavelengths is presented simultaneously with an interferometer and the spectrum is mathematically derived from the pattern thus obtained.

The rate dynamics in chemical or physical systems.

An abnormal hemoglobin resulting from the substitution of valine for glutamic acid at position 6 of the beta chain of the globin moiety. The heterozygous state results in sickle cell trait, the homozygous in sickle cell anemia.

The thermodynamic interaction between a substance and WATER.

Organic polymeric materials which can be broken down by naturally occurring processes. This includes plastics created from bio-based or petrochemical-based materials.

Polymerized methyl methacrylate monomers which are used as sheets, moulding, extrusion powders, surface coating resins, emulsion polymers, fibers, inks, and films (From International Labor Organization, 1983). This material is also used in tooth implants, bone cements, and hard corneal contact lenses.

Tree-like, highly branched, polymeric compounds. They grow three-dimensionally by the addition of shells of branched molecules to a central core. The overall globular shape and presence of cavities gives potential as drug carriers and CONTRAST AGENTS.

Synthetic thermoplastics that are tough, flexible, inert, and resistant to chemicals and electrical current. They are often used as biocompatible materials for prostheses and implants.

The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Nanometer-scale composite structures composed of organic molecules intimately incorporated with inorganic molecules. (Glossary of Biotechnology and Nanobiotechology Terms, 4th ed)

Salts of alginic acid that are extracted from marine kelp and used to make dental impressions and as absorbent material for surgical dressings.

Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.

Polymers of silicone that are formed by crosslinking and treatment with amorphous silica to increase strength. They have properties similar to vulcanized natural rubber, in that they stretch under tension, retract rapidly, and fully recover to their original dimensions upon release. They are used in the encapsulation of surgical membranes and implants.

The sum of the weight of all the atoms in a molecule.

A group of 13 or more deoxyribonucleotides in which the phosphate residues of each deoxyribonucleotide act as bridges in forming diester linkages between the deoxyribose moieties.

Generating tissue in vitro for clinical applications, such as replacing wounded tissues or impaired organs. The use of TISSUE SCAFFOLDING enables the generation of complex multi-layered tissues and tissue structures.

A polyester used for absorbable sutures & surgical mesh, especially in ophthalmic surgery. 2-Hydroxy-propanoic acid polymer with polymerized hydroxyacetic acid, which forms 3,6-dimethyl-1,4-dioxane-dione polymer with 1,4-dioxane-2,5-dione copolymer of molecular weight about 80,000 daltons.

The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.

Bacterial polysaccharides that are rich in phosphodiester linkages. They are the major components of the cell walls and membranes of many bacteria.

Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.

Cell growth support structures composed of BIOCOMPATIBLE MATERIALS. They are specially designed solid support matrices for cell attachment in TISSUE ENGINEERING and GUIDED TISSUE REGENERATION uses.

A type of scanning probe microscopy in which a probe systematically rides across the surface of a sample being scanned in a raster pattern. The vertical position is recorded as a spring attached to the probe rises and falls in response to peaks and valleys on the surface. These deflections produce a topographic map of the sample.

Artificially produced membranes, such as semipermeable membranes used in artificial kidney dialysis (RENAL DIALYSIS), monomolecular and bimolecular membranes used as models to simulate biological CELL MEMBRANES. These membranes are also used in the process of GUIDED TISSUE REGENERATION.

Substances that cause the adherence of two surfaces. They include glues (properly collagen-derived adhesives), mucilages, sticky pastes, gums, resins, or latex.

A property of the surface of an object that makes it stick to another surface.

The characteristic three-dimensional shape of a molecule.

The properties and processes of materials that affect their behavior under force.

The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed)

Linear polymers in which orthophosphate residues are linked with energy-rich phosphoanhydride bonds. They are found in plants, animals, and microorganisms.

The chemical and physical integrity of a pharmaceutical product.

An interdisciplinary field in materials science, ENGINEERING, and BIOLOGY, studying the use of biological principles for synthesis or fabrication of BIOMIMETIC MATERIALS.

A polyvinyl resin used extensively in the manufacture of plastics, including medical devices, tubing, and other packaging. It is also used as a rubber substitute.

Differential thermal analysis in which the sample compartment of the apparatus is a differential calorimeter, allowing an exact measure of the heat of transition independent of the specific heat, thermal conductivity, and other variables of the sample.

The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.

A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).

A microtubule subunit protein found in large quantities in mammalian brain. It has also been isolated from SPERM FLAGELLUM; CILIA; and other sources. Structurally, the protein is a dimer with a molecular weight of approximately 120,000 and a sedimentation coefficient of 5.8S. It binds to COLCHICINE; VINCRISTINE; and VINBLASTINE.

The maximum stress a material subjected to a stretching load can withstand without tearing. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p2001)

Manufacturing technology for making microscopic devices in the micrometer range (typically 1-100 micrometers), such as integrated circuits or MEMS. The process usually involves replication and parallel fabrication of hundreds or millions of identical structures using various thin film deposition techniques and carried out in environmentally-controlled clean rooms.

Nanometer-sized, hollow, spherically-shaped objects that can be utilized to encapsulate small amounts of pharmaceuticals, enzymes, or other catalysts (Glossary of Biotechnology and Nanobiotechnology, 4th ed).

The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes.

Organic compounds that contain silicon as an integral part of the molecule.

Reagents with two reactive groups, usually at opposite ends of the molecule, that are capable of reacting with and thereby forming bridges between side chains of amino acids in proteins; the locations of naturally reactive areas within proteins can thereby be identified; may also be used for other macromolecules, like glycoproteins, nucleic acids, or other.

A highly miniaturized version of ELECTROPHORESIS performed in a microfluidic device.

Particles consisting of aggregates of molecules held loosely together by secondary bonds. The surface of micelles are usually comprised of amphiphatic compounds that are oriented in a way that minimizes the energy of interaction between the micelle and its environment. Liquids that contain large numbers of suspended micelles are referred to as EMULSIONS.

The diversion of RADIATION (thermal, electromagnetic, or nuclear) from its original path as a result of interactions or collisions with atoms, molecules, or larger particles in the atmosphere or other media. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Process by which unwanted microbial, plant or animal materials or organisms accumulate on man-made surfaces.

Completed forms of the pharmaceutical preparation in which prescribed doses of medication are included. They are designed to resist action by gastric fluids, prevent vomiting and nausea, reduce or alleviate the undesirable taste and smells associated with oral administration, achieve a high concentration of drug at target site, or produce a delayed or long-acting drug effect.

The physical phenomena describing the structure and properties of atoms and molecules, and their reaction and interaction processes.

Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed)

Compounds and molecular complexes that consist of very large numbers of atoms and are generally over 500 kDa in size. In biological systems macromolecular substances usually can be visualized using ELECTRON MICROSCOPY and are distinguished from ORGANELLES by the lack of a membrane structure.

Positively charged atoms, radicals or groups of atoms which travel to the cathode or negative pole during electrolysis.

Agents that modify interfacial tension of water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes soaps, detergents, emulsifiers, dispersing and wetting agents, and several groups of antiseptics.

Any of a variety of procedures which use biomolecular probes to measure the presence or concentration of biological molecules, biological structures, microorganisms, etc., by translating a biochemical interaction at the probe surface into a quantifiable physical signal.

Submicron-sized fibers with diameters typically between 50 and 500 nanometers. The very small dimension of these fibers can generate a high surface area to volume ratio, which makes them potential candidates for various biomedical and other applications.

Elimination of ENVIRONMENTAL POLLUTANTS; PESTICIDES and other waste using living organisms, usually involving intervention of environmental or sanitation engineers.

A network of cross-linked hydrophilic macromolecules used in biomedical applications.

The methyl esters of methacrylic acid that polymerize easily and are used as tissue cements, dental materials, and absorbent for biological substances.

Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.

Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Small containers or pellets of a solid drug implanted in the body to achieve sustained release of the drug.

Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

The introduction of functional (usually cloned) GENES into cells. A variety of techniques and naturally occurring processes are used for the gene transfer such as cell hybridization, LIPOSOMES or microcell-mediated gene transfer, ELECTROPORATION, chromosome-mediated gene transfer, TRANSFECTION, and GENETIC TRANSDUCTION. Gene transfer may result in genetically transformed cells and individual organisms.

Resistance and recovery from distortion of shape.

Technique whereby the weight of a sample can be followed over a period of time while its temperature is being changed (usually increased at a constant rate).

Nanometer-sized tubes composed of various substances including carbon (CARBON NANOTUBES), boron nitride, or nickel vanadate.

Slender, cylindrical filaments found in the cytoskeleton of plant and animal cells. They are composed of the protein TUBULIN and are influenced by TUBULIN MODULATORS.

Silicone polymers which consist of silicon atoms substituted with methyl groups and linked by oxygen atoms. They comprise a series of biocompatible materials used as liquids, gels or solids; as film for artificial membranes, gels for implants, and liquids for drug vehicles; and as antifoaming agents.

Artificial substitutes for body parts and materials inserted into organisms during experimental studies.

A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].

Gibberellic acid stabilises microtubules in maize suspension cells to cold and stimulates acetylation of alpha-tubulin. (1/6663)

Gibberellic acid is known to stabilise microtubules in plant organs against depolymerisation. We have now devised a simplified cell system for studying this. Pretreatment of a maize cell suspension with gibberellic acid for just 3 h stabilised protoplast microtubules against depolymerisation on ice. In other eukaryotes, acetylation of alpha-tubulin is known to correlate with microtubule stabilisation but this is not established in plants. By isolating the polymeric tubulin fraction from maize cytoskeletons and immunoblotting with the antibody 6-11B-1, we have demonstrated that gibberellic acid stimulates the acetylation of alpha-tubulin. This is the first demonstrated link between microtubule stabilisation and tubulin acetylation in higher plants. (+info)

The L1 major capsid protein of human papillomavirus type 11 recombinant virus-like particles interacts with heparin and cell-surface glycosaminoglycans on human keratinocytes. (2/6663)

The L1 major capsid protein of human papillomavirus (HPV) type 11, a 55-kDa polypeptide, forms particulate structures resembling native virus with an average particle diameter of 50-60 nm when expressed in the yeast Saccharomyces cerevisiae. We show in this report that these virus-like particles (VLPs) interact with heparin and with cell-surface glycosaminoglycans (GAGs) resembling heparin on keratinocytes and Chinese hamster ovary cells. The binding of VLPs to heparin is shown to exhibit an affinity comparable to that of other identified heparin-binding proteins. Immobilized heparin chromatography and surface plasmon resonance were used to show that this interaction can be specifically inhibited by free heparin and dextran sulfate and that the effectiveness of the inhibitor is related to its molecular weight and charge density. Sequence comparison of nine human L1 types revealed a conserved region of the carboxyl terminus containing clustered basic amino acids that bear resemblance to proposed heparin-binding motifs in unrelated proteins. Specific enzymatic cleavage of this region eliminated binding to both immobilized heparin and human keratinocyte (HaCaT) cells. Removal of heparan sulfate GAGs on keratinocytes by treatment with heparinase or heparitinase resulted in an 80-90% reduction of VLP binding, whereas treatment of cells with laminin, a substrate for alpha6 integrin receptors, provided minimal inhibition. Cells treated with chlorate or substituted beta-D-xylosides, resulting in undersulfation or secretion of GAG chains, also showed a reduced affinity for VLPs. Similarly, binding of VLPs to a Chinese hamster ovary cell mutant deficient in GAG synthesis was shown to be only 10% that observed for wild type cells. This report establishes for the first time that the carboxyl-terminal portion of HPV L1 interacts with heparin, and that this region appears to be crucial for interaction with the cell surface. (+info)

Lactic acid polymers as biodegradable carriers of fluoroquinolones: an in vitro study. (3/6663)

A biodegradable polymer of DL-dilactide that facilitates release of ciprofloxacin or pefloxacin at levels exceeding MICs for the causative microorganisms of chronic osteomyelitis is described. Duration and peak of release were found to depend on the molecular weight of the polymer. Its characteristics make it promising for treating chronic bone infections. (+info)

Quantitative study of polymer conformation and dynamics by single-particle tracking. (4/6663)

We present a new method for analyzing the dynamics of conformational fluctuations of individual flexible polymer molecules. In single-particle tracking (SPT), one end of the polymer molecule is tethered to an immobile substratum. A microsphere attached to the other end serves as an optical marker. The conformational fluctuations of the polymer molecule can be measured by optical microscopy via the motion of the microsphere. The bead-and-spring theory for polymer dynamics is further developed to account for the microsphere, and together the measurement and the theory yield quantitative information about molecular conformations and dynamics under nonperturbing conditions. Applying the method to measurements carried out on DNA molecules provides information complementary to recent studies of single DNA molecules under extensional force. Combining high precision measurements with the theoretical analysis presented here creates a powerful tool for studying conformational dynamics of biological and synthetic macromolecules at the single-molecule level. (+info)

Purification and characterization of rat hippocampal CA3-dendritic spines associated with mossy fiber terminals. (5/6663)

We report a revised and improved isolation procedure for CA3-dendritic spines, most of them still in association with mossy fiber terminals resulting in a 7.5-fold enrichment over nuclei and a 29-fold enrichment over myelin. Additionally, red blood cells, medullated fibers, mitochondria and small synaptosomes were significantly depleted. We show by high resolution electron microscopy that this subcellular fraction contains numerous dendritic spines with a rich ultrastructure, e.g. an intact spine apparatus, membranous organelles, free and membrane-bound polyribosomes, endocytic structures and mitochondria. This improved experimental system will allow us to study aspects of post-synaptic functions at the biochemical and molecular level. (+info)

Adaptation of bulk constitutive equations to insoluble monolayer collapse at the air-water interface. (6/6663)

A constitutive equation based on stress-strain models of bulk solids was adapted to relate the surface pressure, compression rate, and temperature of an insoluble monolayer of monodendrons during collapse at the air-water interface. A power law relation between compression rate and surface pressure and an Arrhenius temperature dependence of the steady-state creep rate were observed in data from compression rate and creep experiments in the collapse region. These relations were combined into a single constitutive equation to calculate the temperature dependence of the collapse pressure with a maximum error of 5 percent for temperatures ranging from 10 degrees to 25 degrees C. (+info)

Actin polymerization: Where the WASP stings. (7/6663)

How do extracellular signals induce actin polymerization, as required for many cellular responses? Key signal transducers, such as the small GTPases Cdc42 and Rac, have now been shown to link via proteins of the WASP family to the Arp2/3 complex, which nucleates actin polymerization. (+info)

Structure and anticoagulant activity of sulfated fucans. Comparison between the regular, repetitive, and linear fucans from echinoderms with the more heterogeneous and branched polymers from brown algae. (8/6663)

Sulfated fucans are among the most widely studied of all the sulfated polysaccharides of non-mammalian origin that exhibit biological activities in mammalian systems. Examples of these polysaccharides extracted from echinoderms have simple structures, composed of oligosaccharide repeating units within which the residues differ by specific patterns of sulfation among different species. In contrast the algal fucans may have some regular repeating structure but are clearly more heterogeneous when compared with the echinoderm fucans. The structures of the sulfated fucans from brown algae also vary from species to species. We compared the anticoagulant activity of the regular and repetitive fucans from echinoderms with that of the more heterogeneous fucans from three species of brown algae. Our results indicate that different structural features determine not only the anticoagulant potency of the sulfated fucans but also the mechanism by which they exert this activity. Thus, the branched fucans from brown algae are direct inhibitors of thrombin, whereas the linear fucans from echinoderms require the presence of antithrombin or heparin cofactor II for inhibition of thrombin, as reported for mammalian glycosaminoglycans. The linear sulfated fucans from echinoderms have an anticoagulant action resembling that of mammalian dermatan sulfate and a modest action through antithrombin. A single difference of one sulfate ester per tetrasaccharide repeating unit modifies the anticoagulant activity of the polysaccharide markedly. Possibly the spatial arrangements of sulfate esters in the repeating tetrasaccharide unit of the echinoderm fucan mimics the site in dermatan sulfate with high affinity for heparin cofactor II. (+info)

The polymer melt is produced from the raw materials, and then from the polymer finisher directly pumped to the spinning mill. ... If the polymer is a thermoplastic then it can undergo melt spinning. The molten polymer is extruded through a spinneret ... This may be done while the polymer is still solidifying or after it has completely cooled. Spinneret (polymers) Manufacturing: ... the polymer must undergo solution spinning techniques for fiber formation. The polymer is first dissolved in a solvent forming ...

https://en.wikipedia.org/wiki/Spinning_(polymers)

... as opposed to other polymer architectures including branched and crosslinked polymers that are formed by two or more polymer ... Polymer architecture Branching (polymer chemistry) Zheng, Yu; Cao, Hongliang; Newland, Ben; Dong, Yixiao; Pandit, Abhay; Wang, ... "Polymer tied in celtic knots". chemistry world. Retrieved 28 May 2013. "Polymers Branch Out". Chemical Processing. Retrieved 23 ... Single Chain Cyclized/Knotted Polymers are a new class of polymer architecture with a general structure consisting of multiple ...

https://en.wikipedia.org/wiki/Knotted_polymers

"MBA Polymer Articles of Incorporation CA Secretary of State". "MBA Polymers". MBA Polymers. "Amended articles of Incorporation ... "MBA Polymers". MBA Polymers. Retrieved 23 August 2019. "Forbes, "Where does it go?", by Kerry A. Dolan, 31st October 2005" (PDF ... "Locations • MBA Polymers". MBA Polymers. Retrieved 23 August 2019. "[node:Title]". www.csrwire.com. "Dr Mike Biddle to receive ... The highly automated polymer separation technology developed and patented by MBA Polymers encompasses over 20 complex ...

https://en.wikipedia.org/wiki/MBA_Polymers

A spinneret is a device used to extrude a polymer solution or polymer melt to form fibers. Streams of viscous polymer exit via ... The individual polymer chains tend to align in the fiber because of viscous flow. This airstream liquid-to-fiber formation ... Electrospinning Hollow fiber membrane Spinning (polymers) Textiles Thermal cleaning Spinneret Li, Norman N. (2008). Advanced ... the spinneret into air or liquid leading to a phase inversion which allows the polymer to solidify. ...

https://en.wikipedia.org/wiki/Spinneret_(polymers)

... is a peer-reviewed scientific journal that covers the entire scope of carbohydrate polymers and the ... "Carbohydrate Polymers". 2021 Journal Citation Reports. Web of Science (Science ed.). Clarivate. 2022. Official website v t e ( ... "Abstracting & indexing - Carbohydrate Polymers , ScienceDirect.com by Elsevier". www.sciencedirect.com. Retrieved 2022-08-24. " ... The journal is abstracted and indexed in several databases including: Science Citation Index Web of Science Polymer Contents ...

https://en.wikipedia.org/wiki/Carbohydrate_Polymers

Polymer Chemistry Section Polymer Analysis Section Polymer Physics Section Polymer Theory and Simulation Section Polymer ... Biobased and Biodegradable Polymers Section Polymer Recycling Section Polymer Composites and Nanocomposites Section Green and ... Polymers is an international peer-reviewed open access scientific journal of polymer science that provides an interdisciplinary ... Sustainable Chemistry in Polymer Science Section Polymers. WorldCat "Polymers". 2020 Journal Citation Reports. Web of Science ( ...

https://en.wikipedia.org/wiki/Polymers_(journal)

... , or polymer topology, could refer to a single polymeric chain with topological information or a polymer ... between each of the polymer chain. On the other hand, topology also determines the hierarchical structures within a polymer ... Topological polymers may refer to a polymeric molecule that possesses unique spatial features, such as linear, branched, or ... It could also refer to polymer networks that exhibit distinct topologies owing to special crosslinkers. When self-assembling or ...

https://en.wikipedia.org/wiki/Topological_polymers

... or Low-Ceiling Temperature Polymers refer to polymeric materials that can undergo depolymerization to ... v t e (Articles with short description, Short description matches Wikidata, Polymers, All stub articles, Polymer stubs). ... Closely related to depolymerizable polymers, self-immolative polymers can also irreversibly disassemble into their constituent ... depolymerizable polymers and closely related self-immolative polymers can be triggered by stimuli to break fast under moderate ...

https://en.wikipedia.org/wiki/Depolymerizable_polymers

... including polymers and other polymers with specific chemical reactivity or other functionality. The journal publishes both ... Reactive & Functional Polymers is a monthly peer-reviewed scientific journal, established in 1982 and published by Elsevier. It ... "Reactive & Functional Polymers". 2020 Journal Citation Reports. Web of Science (Science OR Social Sciences ed.). Clarivate ... "Reactive & Functional Polymers". MIAR: Information Matrix for the Analysis of Journals. University of Barcelona. Retrieved 2019 ...

https://en.wikipedia.org/wiki/Reactive_&_Functional_Polymers

... is a peer-reviewed scientific journal that covers the field of polymer chemistry, in particular ... "Polymer Science". "Journals Ranked by Impact: Polymer Science". 2020 Journal Citation Reports. Web of Science (Sciences ed.). ... molecular structure/processability/property relationships of high performance polymers such as liquid crystalline polymers. It ...

https://en.wikipedia.org/wiki/High_Performance_Polymers

Post polymerization, the polymer chains can be cross-linked to one another thus forming a larger polymer network. The chain ... Journal of Polymer Science Part A: Polymer Chemistry, 51: 5230-5238. doi: 10.1002/pola.26953 Hartman, J., et al. "Embolectomy ... Heparin-mimicking polymers can be designed to exhibit shape memory behavior. Heparin mimicking polymers can be characterized by ... glucose modified diamine with pedant monosaccharides are examples of heparin mimicking polymers. Heparin mimicking polymers can ...

https://en.wikipedia.org/wiki/Heparin_mimicking_polymers

Liquid crystal polymer Modeling of polymer crystals Andrew Keller (1952). "Morphology of crystallizing polymers". Nature. 169 ( ... Polymers are composed of long molecular chains which form irregular, entangled coils in the melt. Some polymers retain such a ... Polymers can crystallize through a variety of different regimes and unlike simple molecules, the polymer crystal lamellae have ... Progress in Polymer Science. (2014). 921-958 Bowden, P.B., Young, R.J. Deformation Mechanisms in Crystalline Polymers. Journal ...

https://en.wikipedia.org/wiki/Crystallization_of_polymers

Ladder polymers are a subclass of polymers made with aromatic cycles or heterocycles. Ladder polymers generally have one of two ... One type of ladder polymer links two polymer chains with periodic covalent bonds. In another type, the ladder polymer consists ... Fire-safe polymers are polymers that are resistant to degradation at high temperatures. There is need for fire-resistant ... The amount of access that oxygen has to the surface of the polymer also plays a role in polymer combustion. Oxygen is better ...

https://en.wikipedia.org/wiki/Fire-safe_polymers

"Creep failure time prediction of polymers and polymer composites" Robert Oboigbaotor Ebewele,"CRC Press,2000" "polymer science ... In reinforced polymers, crack initiation usually occurs at the interface of polymer fiber and the matrix. Fatigue performances ... Chain scission occurs in a polymer as a result of intense localized heat. the chemical bond in a polymer backbone may be broken ... Unlike metals and other materials, polymer do not cyclic harden; rather, polymers perform cyclic softening for most of the time ...

https://en.wikipedia.org/wiki/Fracture_in_polymers

Often, these polymers are structured as a copolymer where each polymer displays one type of response. pH sensitive polymers ... as will star polymers and branched polymers. However, star and branched polymers can form rod or worm-shaped micelles rather ... Repulsions between like charges cause the polymers to change shape. Polyacids, also known as anionic polymers, are polymers ... pH sensitive polymers have been considered for use in membranes. A change in pH could change the ability of the polymer to let ...

https://en.wikipedia.org/wiki/PH-sensitive_polymers

Claussen, K. U.; Giesa, R.; Schmidt, H. W., Longitudinal polymer gradient materials based on crosslinked polymers. Polymer 2014 ... Claussen, K. U.; Giesa, R.; Schmidt, H. W., Longitudinal polymer gradient materials based on crosslinked polymers. Polymer 2014 ... Porosity can be used to decrease the modulus of a polymer as seen in polymer foams, and as seen in bone, a change in porosity ... Polymer gradient materials (PGM) are a class of polymers with gradually changing mechanical properties along a defined ...

https://en.wikipedia.org/wiki/Mechanically_gradient_polymers

Silyl-modified polymers (SMP; also silane-modified polymers, modified-silane polymers, MS polymers, silane-terminated polymers ... Jeffrey D. Umpleby "Polymer composition" U.S. patent 4574133. 1986. Michael Ravers. "MS Polymer™-Based PSA technology". Afera. ... MS polymers consist of a polyether backbone with dimethoxy-silyl or trimethoxy-silyl ends, with trimethoxy-silyl groups being ... Typically the sealant products manufactured with silyl-modified polymers have good adhesion on a wide range of substrate ...

https://en.wikipedia.org/wiki/Silyl_modified_polymers

The frost line is a term used in plastic film manufacturing by extrusion. It refers to the point beyond the die where the temperature of the molten plastic falls below the softening point and the diameter of the extruded plastic bubble stabilizes. The term was borrowed from the notion of "frost line" in soil science and refers to the frosted appearance of the plastic film above the "frost line". The distance from the die is called the height of the frost line. It depends on various factors, including the melt temperature, the speed of cooling, the extrusion speed, and the diameter of the bubble. The notion is important, since the higher the frost line, the more difficult to control the uniformity of the film thickness. For example, a higher frost line due to higher melt temperature and/or lower cooling rate means a longer time to solidify, and a more smooth and transparent film is produced. (Articles lacking sources from December 2009, All articles lacking sources, Plastics industry ...

https://en.wikipedia.org/wiki/Frost_line_(polymers)

In polymers, such as plastics, thermal degradation refers to a type of polymer degradation where damaging chemical changes take ... 3.0.CO;2-G. Thermal Degradation of Polymers - The Zeus Polymer Minute Liden, David R. (2018). "Thermal and Oxidative ... Thermal degradation of natural polymers. Journal of Thermal Analysis and Calorimetry, Vol. 67 (2002) 295~303 (Polymer chemistry ... Autoxidation Photo-oxidation of polymers Weather testing of polymers Environmental stress cracking Pielichowski, Krzysztof ( ...

https://en.wikipedia.org/wiki/Thermal_degradation_of_polymers

IUPAC definition Artificial polymer: Man-made polymer that is not a biopolymer. Note 1: Artificial polymer should also be used ... The common PET bottles are made of a synthetic polymer, polyethylene terephthalate. The plastic kits and covers are mostly made ... Some familiar household synthetic polymers include: Nylons in textiles and fabrics, Teflon in non-stick pans, Bakelite for ... However, due to the environmental issues created by these synthetic polymers which are mostly non-biodegradable and often ...

https://en.wikipedia.org/wiki/List_of_synthetic_polymers

Common additives and filler will often alter the weldability of polymers. These additions can make the weld process more ... Tappe, P., & Potente, H. (December 1989). "New Results on the Spin Welding of Plastics". Polymer Engineering and Science. 29 ( ... Heat is generated until the glass transition temperature, for amorphous polymers or the melting temperature, for ... The spin welding process can adequately join almost all thermoplastic polymers. Typical with friction welding applications, ...

https://en.wikipedia.org/wiki/Spin_welding_of_polymers

The binding polymer is often a thermoset resin such as epoxy, but other thermoset or thermoplastic polymers, such as polyester ... Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber- ... Carbon fiber is sometimes referred to as graphite-reinforced polymer or graphite fiber-reinforced polymer (GFRP is less common ... Carbon nanotube reinforced polymer (CNRP) is several times stronger and tougher than CFRP and is used in the Lockheed Martin F- ...

https://en.wikipedia.org/wiki/Carbon-fiber-reinforced_polymers

Thermoresponsive polymers can be used as stationary phase in liquid chromatography. Here, the polarity of the stationary phase ... This results in a formation of a polymer-enzyme conjugate which can be reversibly precipitated and dissolved by changing the ... The scope of this study was limited to isothermal conditions and attaching polymer chains to glass beads. The results, however ... In place of solvent gradient elution, thermoresponsive polymers allow the use of temperature gradients under purely aqueous ...

https://en.wikipedia.org/wiki/Thermoresponsive_polymers_in_chromatography

Light emitting polymers in OLEDs Conductive polymer Electroluminescence Heeger, Alan J. (2001). "Semiconducting and Metallic ... Articles with short description, Short description is different from Wikidata, Organic polymers, Conductive polymers, Chemistry ... Pei, Qibing (2007). "Light-Emitting Polymers". sigmaaldrich.com. SigmaAldrich. Retrieved 1 September 2015. McCullough, Richard ... new insights on structure-property relationships in conducting polymers". Journal of the American Chemical Society. 115 (11): ...

https://en.wikipedia.org/wiki/List_of_conjugated_polymers

... is a monthly peer-reviewed scientific journal, published since 1990 by John Wiley & Sons. It ... "Polymers for Advanced Technologies". 2020 Journal Citation Reports. Web of Science (Science ed.). Clarivate Analytics. 2021. ... covers research on polymer science and technology. The journal is abstracted and indexed in Chemical Abstracts Service, Scopus ...

https://en.wikipedia.org/wiki/Polymers_for_Advanced_Technologies

Forensic polymer engineering Photodegradation Polymer degradation Stress corrosion cracking Thermal degradation of polymers ... In polymer chemistry photo-oxidation (sometimes: oxidative photodegradation) is the degradation of a polymer surface due to the ... ISBN 978-3-446-40801-2. Feldman, D. (1 October 2002). "Polymer Weathering: Photo-Oxidation". Journal of Polymers and the ... Initiation generates radical-carbons on the polymer chain, sometimes called macroradicals (P•). Chain initiation Polymer ⟶ P ...

https://en.wikipedia.org/wiki/Photo-oxidation_of_polymers

The amount of laser energy absorbed by a polymer is a function of the laser wavelength, polymer absorptivity, polymer ... Through transmission laser welding of polymers is a method to create a joint at the interface between two polymer components ... can have a negative impact on the laser weldability of a polymer. The titanium dioxide provides a white coloring to polymers ... Laser welding of polymers is a set of methods used to join polymeric components through the use of a laser. It can be performed ...

https://en.wikipedia.org/wiki/Laser_welding_of_polymers

Accelerated photo-ageing of polymers in SEPAP units is the controlled polymer degradation and polymer coating degradation under ... "Polymer Reactions, vol 6" in Comprehensive Polymer Science, Pergamon press, 1989, ISBN 0-08-036210-9 Olivier Haillant, "Polymer ... These elementary chemical reactions lead more or less quickly to a deterioration of the physical properties of polymer ... These acceleration factors have indeed been determined in very specific cases of polymers of well-defined formulations and ...

https://en.wikipedia.org/wiki/Weather_testing_of_polymers

... (PIMs) are a unique class of microporous material developed by research efforts led by Neil ... In order to maintain permanent microporosity the rotation along the polymer chain must be prohibited through the use of fused ... Due to the presence of intrinsic microporosity these polymers have high-free volume, high internal surface area, and have a ... Classified as a porous organic polymer, PIMs generate porosity from their rigid and contorted macromolecular chains that do not ...

https://en.wikipedia.org/wiki/Polymers_of_intrinsic_microporosity

Types of branched polymers include star polymers, comb polymers, polymer brushes, dendronized polymers, ladder polymers, and ... Polymers are studied in the fields of polymer science (which includes polymer chemistry and polymer physics), biophysics and ... Catenation Inorganic polymer Important publications in polymer chemistry Oligomer Polymer adsorption Polymer classes Polymer ... Polymer degradation is a change in the properties-tensile strength, color, shape, or molecular weight-of a polymer or polymer- ...

https://en.wikipedia.org/wiki/Polymer

Noble Polymers updates and more at Business Standard news. , Page 1 ... Noble Polymers Ltd. (NOBLEPOLYMERS) - News Sector. * Adani group shares extend fall; Adani Total Gas tanks 51% in five days. ... Quick Links for Noble Polymers:. * News. Announcements Brokerage Reports Business Earnings Sector ...

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Polymer degradation. Much of the literature about degradation of plastic polymers has been authored by polymer engineers. From ... Degradation of plastic polymers floating in the marine environment will take place. For the polymers with a carbon backbone (PE ... Degradation of plastic polymers can lead to low molecular weight polymer fragments, like monomers and oligomers, and formation ... 20-23 Free radicals are formed when UV-light breaks C-H bonds on the polymer backbone.16,24 In the propagation step the polymer ...

https://pubs.rsc.org/en/content/articlehtml/2015/em/c5em00207a

https://en.wikipedia.org/wiki/Spinning_(polymers)

Estimating the Permeation Resistance of Nonporous Barrier Polymers to Sulfur Mustard (HD) and Sarin (GB) Chemical Warfare ... Estimating the Permeation Resistance of Nonporous Barrier Polymers to Sulfur Mustard (HD) and Sarin (GB) Chemical Warfare ...

https://www.cdc.gov/niosh/docs/2008-141/default.html

... official journal of the Society of Polymer Science, Japan publishes high quality papers in all areas of polymer and ... Polymer Journal received an Impact Factor of 3.135 Submit to Polymer Journal and benefit from: - Impact Factor(2021) of 3.135 ... Bridging polymer chemistry and cryobiology This review outlines the research across the areas of polymer chemistry and ... Special issue on 2022 Rising Stars in Polymer Science The November 2021 issue of Polymer Journal is a special issue on 2021 ...

https://www.nature.com/pj/?type=outline&error=cookies_not_supported&code=6ab95d56-87a8-447f-b4c0-09db90411f0e

A head-to-head comparison of a new biodegradeable polymer-based sirolimus-eluting stent showed the stent was superior to a ... MIAMI - A head-to-head comparison in a small study of a new biodegradable polymer-based sirolimus-eluting stent (SES), MiStent ... The biodegradable polymer is designed to overcome the late failures of drug-eluting stents that have been attributed to their ... He added that these types of stents, with a biodegradeable polymer and reversion back to a bare-metal stent, represent the ...

https://www.medscape.com/viewarticle/773258

Conductive Polymer Electrolytic Capacitors*Conductive Polymer Aluminum Electrolytic Capacitors (SP-Cap). *Conductive Polymer ...

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Purchase Structural Order in Polymers - 1st Edition. Print Book & E-Book. ISBN 9780080252964, 9781483279008 ... Constitutional and Configurational Oorder in Synthetic Polymers and Bio-Polymers. Structural Heterogeneity of Lactam Polymers. ... Optical and Scattering Studies of Polymer Blends. Polymers Tailored to Specific Purposes. Structural Order and Blood ... Structural Order in Polymers. Holiday Sale. :. Save up to 25% on print and eBooks with FREE shipping. No promo code needed. ...

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It also continued to be used as a film-forming polymer in some solvent-based clear coatings and paints and in fingernail ... With the introduction of newer polymers beginning in the 1930s and 40s, however, cellulose acetate plastic went into decline. ... and the new vinyl polymers. By the end of the 20th century the only unique application of note for cellulose nitrate was in ...

https://www.britannica.com/topic/industrial-polymers-468698/Cellulose-nitrate

... Hair Academy Video. Watch now to learn how this innovative polymer delivers multifunctional benefits. ... HydroxySHIELD™ Polymer Product Guide. Discover the multifunctional benefits that will boost your "consumer differentiating ... Learn about the latest hair care market trends and how you can meet those demands with HydroxySHIELD™ Polymer. ...

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Selection from Multifunctional and Nanoreinforced Polymers for Food Packaging [Book] ... Recent developments in multifunctional and nanoreinforced polymers have provided the opportunity to produce high barrier, ... Multifunctional and nanoreinforced polymers for food packaging provides a comprehensive review of novel polymers and polymer ... Provides a comprehensive review of novel polymers and polymer nanocomposites for use in food packaging ...

https://www.oreilly.com/library/view/multifunctional-and-nanoreinforced/9781845697389/

Advanced Materials and Polymers The department has an internationally recognized research program in structural, functional, ...

https://www.mcgill.ca/chemeng/research/advancedmat

Wayne W. Barrett "[Polymers as Self-Avoiding Walks]: Discussion," The Annals of Probability, Ann. Probab. 9(4), 555-556, ( ...

https://www.projecteuclid.org/journals/annals-of-probability/volume-9/issue-4/Polymers-as-Self-Avoiding-Walks-Discussion/10.1214/aop/1176994360.full

The roadshow Polymer Membranes shows two interesting projects from the research of the group Membrane Materials and Processes ( ...

https://www.tue.nl/en/our-university/about-the-university/sustainability/go-green-office/roadshow-polymer-membranes/

Can any of you out there , ,offer some helpful suggestions? Just to clarify, I am not talking about , ,the polymers as surface ... My current work involves the use of polymers as drug treatments and we , ,are just getting into the anti-infective field. It ... However through web surfing I have found a number of , ,commercial companies out there that manufacture polymers and use them , ... Biofilm Treatment with Polymers. gerne at my-deja.com gerne at my-deja.com Sun Jul 11 04:16:12 EST 1999 *Previous message: ...

http://www.bio.net/bionet/mm/biofilms/1999-July/000450.html

These are polymers that expand and contract on contact with water. This smart material is sometimes used in toys that can ... The toy duck, shown below, has been manufactured from a hydromorphic polymer.. It has been designed to float on water like ... Many similar toys are manufactured from hydromorphic polymers. For instance, some joke shops sell items that will expand when ... Kitchen sponges made from hydromorphic polymers, absorb water and are useful for mopping up spills.. ...

https://technologystudent.com/joints/hydrom1.html

Learn how mechanical analysis can be used on polymer powder to detect the glass transition. ... Another way to measure the glass transition in polymers. Learn how mechanical analysis can be used on polymer powder to detect ... Dynamic Mechanical Analysis (DMA) is a key technique in polymer characterisation.. The glass transition in a polymer is a ... It is of utmost interest for polymer processing and use: polymers are often processed above the glass transition where they are ...

https://www.bath.ac.uk/announcements/another-way-to-measure-the-glass-transition-in-polymers/

The 10-second takeaway For the quarter ended June 30 (Q2), Kraton Performance Polymers missed estimates on revenues and missed ... Kraton Performance Polymers (NYS: KRA) reported earnings on July 31. Here are the numbers you need to know. ... Kraton Performance Polymers tallied revenue of $334.5 million. The eight analysts polled by S&P Capital IQ wanted to see sales ... Kraton Performance Polymers (NYS: KRA) reported earnings on July 31. Here are the numbers you need to know. ...

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Polymer Clay Notan Canes Cane Builder Back Issue August 2014 ad vertisement by PolymerClayWorkshop Ad vertisement from shop ... Polymer Clay Paper Flower Canes Tutorial ad vertisement by PolymerClayWorkshop Ad vertisement from shop PolymerClayWorkshop ... Polymer Clay Frosted Rose Cane Tutorial ad vertisement by PolymerClayWorkshop Ad vertisement from shop PolymerClayWorkshop ... Polymer Ribbon and Shell Canes Tutorial ad vertisement by PolymerClayWorkshop Ad vertisement from shop PolymerClayWorkshop ...

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Poling of polymers by an electric field has been used in electret synthesis as well as in the synthesis of non-linear optical ... Our group uses elastomer composites containing polar polable polymer nanoparticles having a high Tg. We orient and freeze the ...

https://www.empa.ch/de/web/s209/polable-elastomers

We call inactive polymer a polymer which has no effect on the flow, which is the case when the values of the polymer properties ... The polymer model which is used is similar to the one implemented in Eclipse model, see tutorial polymer note, and Eclipse ... The complete schedule as well as the fluid properties can be found in POLYMER.DATA. The second one without polymer. Below we ... The first one with polymer injection with maximum polymer concentration at the injectors. ...

https://www.sintef.no/projectweb/mrst/documentation/tutorials/tutorial_polymer/

The Nordic Master in Polymer Technology gives the student a background in polymer chemistry and polymer physics. The Nordic ... Polymer Technology (Nordic Five Tech) The Nordic Master in Polymer Technology gives the student a background in polymer ... In each study track the students acquire expertise in polymer chemistry and polymer physics. ... Depending on the study track the students get specific skills in their chosen innovative polymer technology engineering topic. ...

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Balance Sheets of Bhansali Engineering Polymers on The Economic Times. ... Bhansali Engineering Polymers Balance Sheets - Get the latest Financial Reports, ... Bhansali Engineering Polymers Ltd. Share Price › Bhansali Engineering Polymers Ltd. Balance Sheet ... BSE:500052 , NSE:BEPLEQ , IND:Petrochem - Polymers , ISIN code:INE922A01025 , SECT:Petrochemicals ...

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Know more about AMS Polymers (AMSPOLYMERS), latest news, financial news, breaking news headlines and more from Business ... AMS Polymers Ltd. (AMSPOLYMERS) - Company Information. AMS Polymers Ltd. AMS Polymers Ltd (Sai Moh Auto links Ltd) is a limited ... Quick Links for AMS Polymers:. * News. Announcements Brokerage Reports Business Earnings Sector ...

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Random Polymers and Algebraic Combinatorics. Monday, May 25, 2015 to Friday, May 29, 2015 ... Random polymers models are the subject of intense research within probability theory and mathematical physics, with ... Recently, there have been breakthroughs in this end as scaling exponents and limit theorems for quantities like the polymer ... The purpose of this workshop is to bring together leading experts and new researchers in random polymers and algebraic ...

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Get free shipping on qualified Polymer Channel Drains products or Buy Online Pick Up in Store today in the Plumbing Department. ...

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New polymer membrane tech improves efficiency of CO2 capture Peer-Reviewed Publication North Carolina State University ... "Our next steps are to see the extent to which the techniques we developed here could be applied to other polymers to get ... The research team, from the U.S. and Norway, addressed this problem by growing chemically active polymer chains that are both ... New polymer membrane tech improves efficiency of CO2 capture. North Carolina State University ...

https://www.eurekalert.org/news-releases/948456

North American Polymer Company), a national manufacturer of refinishing products, training, and ... North American Polymer Company), a national manufacturer of refinishing products, training, and equipment, has expanded its ... North American Polymer Company), a national manufacturer of refinishing products, training, and equipment, has expanded its ...

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Disclosure: Walyou is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com ...

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The Global Emulsion Polymers Market Size accounted for USD 44.9 Billion in 2021 and is estimated to achieve a market size of USD 78.4 Billion by 2030 growing at a CAGR of 6.6% from 2022 to 2030. (acumenresearchandconsulting.com)
Global emulsion polymers market revenue is estimated to expand by USD 78.4 billion by 2030, with a 6.6% CAGR from 2022 to 2030. (acumenresearchandconsulting.com)
Méthodologie: Entre septembre 2021 et février 2022, des écouvillonnages oropharyngés et/ou nasopharyngés de travailleurs symptomatiques COVID-19 et apparemment en bonne santé sélectionnés consécutivement du site minier de Wahgnion dans le sud-ouest du Burkina Faso qui ont consenti à l'étude ont été prélevés selon les deux programme de quart de semaines et testé pour le SRAS-CoV-2 à l'aide d'un test RT-PCR. (bvsalud.org)

The roadshow Polymer Membranes shows two interesting projects from the research of the group Membrane Materials and Processes (MM/P). Kitty Nijmeijer and Zandrie Borneman manage some fifteen applied research projects that focuses on the creation, characterization, and application of membranes for a variety of applications. (tue.nl)
General knowledge on synthesis/modification, characterization, processing and applications of synthetic and biobased polymers and in-depth knowledge in the selected specialization. (dtu.dk)
The objective of the Polymer Analysis Division will be to promote the development and exchange of skills and knowledge in the analysis and characterization of polymers. (4spe.org)

Part four examines nanotechnology in sustainable plastics with chapters examining the food packaging applications of polylactic acid (PLA) nanocomposites, polyhydroxyalkanoates (PHAs), starch-based polymers, chitosan and carragenan polysaccharides and protein-based resins for packaging gluten (WG)-based materials. (oreilly.com)
Oxford Polymers, an engineering plastics compounder in New Britain, Conn., has completed a major expansion only a year after moving into a new facility. (plasticsnews.com)
We use polymers every day, for example in the form of plastics, coatings and paper, and in products such as nappies and shampoos. (scienceinschool.org)

For the quarter ended June 30 (Q2), Kraton Performance Polymers missed estimates on revenues and missed estimates on earnings per share. (aol.com)
Kraton Performance Polymers tallied revenue of $334.5 million. (aol.com)
Among 14 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 14 give Kraton Performance Polymers a green thumbs-up, and give it a red thumbs-down. (aol.com)
Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Kraton Performance Polymers is outperform, with an average price target of $25.25. (aol.com)
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The article Kraton Performance Polymers Misses on Both Revenue and Earnings originally appeared on Fool.com. (aol.com)

Poling of polymers by an electric field has been used in electret synthesis as well as in the synthesis of non-linear optical materials. (empa.ch)
The research team has bypassed the breakdown-synthesis process by developing a one-step cross-linking method that maintains DNA's function as a polymer without breaking its chemical bonds. (soci.org)
Topologically interesting cyclic polymers can be prepared by metathesis polymerization, but their precise synthesis has suffered from the catalyst's vulnerability and inseparability. (nature.com)
With the help of customized glassware (a cyclic polymer dispenser), the use of this quarantined catalyst enables a continuous circular process of in situ polymerization, polymer separation, and catalyst recovery, giving a scalable process for the synthesis of cyclic polycyclopentene. (nature.com)
Cyclic polymers are topologically interesting and envisioned as a lubricant material, but methods for the scalable synthesis of pure cyclic polymers are currently elusive. (nature.com)

As has been reported previously, the durable polymer with drug-eluting stents has been blamed for everything from chronic inflammation and localized hypersensitivity reactions to positive remodeling and acquired incomplete stent apposition. (medscape.com)
CHICAGO, IL - Two new studies testing first- and second-generation drug-eluting stents (DES) with a bioabsorbable polymer have shown that the two stents are noninferior compared with a durable-polymer DES. (medscape.com)
After presenting the results of BASKET-PROVE II at the American Heart Association (AHA) 2014 Scientific Sessions , Dr Christoph Kaiser (University Hospital, Basel, Switzerland) told heart wire there is absolutely no late advantage in using the biodegradable-polymer Nobori stent over the everolimus stent with a durable polymer. (medscape.com)
In the second study [ 3 ] , EVOLVE II , presented by Dr Dean Kereiakes (Christ Hospital Heart and Vascular Center, Cincinnati, OH), the group compared a second-generation bioabsorbable-polymer everolimus-eluting stent ( Synergy , Boston Scientific) and with a durable-polymer everolimus-eluting stent ( Promus Element Plus , Boston Scientific) in 1684 patients. (medscape.com)

Scientists at Karlsruher Institute of Technology (KIT) mixed glass particles, 40 nm each, with a liquid polymer. (photonics.com)
Susan has long experimented with combining liquid polymer and gauze ( here and here ). (polymerclaydaily.com)

MIAMI - A head-to-head comparison in a small study of a new biodegradable polymer-based sirolimus -eluting stent (SES), MiStent (Micell Technologies), showed the stent was superior to the zotarolimus -eluting stent (ZES) Endeavor (Medtronic) in terms of preventing late lumen loss. (medscape.com)
The biodegradable polymer is designed to overcome the late failures of drug-eluting stents that have been attributed to their durable polymers. (medscape.com)
In that study, the use of a stent with a biodegradable polymer (BioMatrix, Biosensors Europe) in patients with ST-elevation MI (STEMI) resulted in an almost 50% lower rate of major adverse cardiovascular events (MACE) compared with use of a bare-metal stent. (medscape.com)
In the per-protocol efficacy analysis, in which patients were mostly excluded because of dual-antiplatelet-therapy protocol violations, the biodegradable-polymer DES failed to meet the statistical definition of noninferiority compared with Xience Prime. (medscape.com)

For highly pure quartz glass, the researchers remove the polymers in the composite by heating the lenses in a furnace at 500 to 600 °C, causing the polymer to be burned to CO 2 . (photonics.com)
With its distinguished editor and international team of expert contributors Multifunctional and nanoreinforced polymers for food packaging proves a valuable resource for researchers in packaging in the food industry and polymer scientists interested in multifunctional and nanoreinforced materials. (oreilly.com)
The purpose of this workshop is to bring together leading experts and new researchers in random polymers and algebraic combinatorics to help build further bridges between these areas. (claymath.org)
To improve the resolution of biological samples at the cellular level, researchers inflate tissues with "swellable polymers" so that they're easier to see under the microscope. (the-scientist.com)

Our group uses elastomer composites containing polar polable polymer nanoparticles having a high T g . (empa.ch)

The November 2021 issue of Polymer Journal is a special issue on 2021 Rising Stars in Polymer Science. (nature.com)

Degradation of plastic polymers can lead to low molecular weight polymer fragments, like monomers and oligomers, and formation of new end groups, especially carboxylic acids. (rsc.org)
Use patented methods to characterize polymer properties and molecular-weight distributions. (aspentech.com)

A general prerequisite for all of my weekly tutorials is that you have a good understanding of the polymer clay basics, including: conditioning clay, using a pasta machine, clay blade and other simple tools, making Skinner Blends or Teardrop Blends, baking clay, as well as sanding and finishing. (beadsandbeading.com)
Properties of polystyrene/poly(dimethyl siloxane) blends partially compatibilized with star polymers containing a gamma-cyclodextrin core and polystyrene arms. (ncsu.edu)

Read Gera's project in Polymer Clay Global Perspectives to learn her process. (polymerclaydaily.com)
Second prize is a copy of the book, Polymer Clay Global Perspectives and third prize is Protect Your Memories sealant. (polymerclaydaily.com)
I always appreciate all your knowledge when it comes to polymer clay and canes. (etsy.com)
Handmade polymer clay beads. (antelopebeads.com)
Spring is in the air… so this weeks video lesson will show you all how to make some fabulous Daisy Flower pendants and embellishments… made with polymer clay of course. (beadsandbeading.com)
Coming up tomorrow (Friday, May 18, 2012) in the Vol-048-3 members video at the Polymer Clay Tutor Library , I'll be showing a fun and easy way to create your own Polymer Daisies, no matter what color you decide to use. (beadsandbeading.com)
If you need help in these areas, my Polymer Clay Beginners Course will get you up to speed quickly. (beadsandbeading.com)
I'm new to polymer clay creations, and your videos are helping a tremendous amount. (beadsandbeading.com)
I was intrigued by an offer from another polymer clay instructor and paid $36 for a 40 minute video… which YOU would have easily, and I mean easily, covered in 9 minutes flat. (beadsandbeading.com)

Emulsion polymers are obtained through the combination of monomers, surfactants, and water. (acumenresearchandconsulting.com)
The cover shows cyclopentene monomers undergoing ring-expansion metathesis polymerization to form cyclic polymers. (nature.com)

Improve production rates, yield and quality through rigorous optimization of the polymer process. (aspentech.com)

The platinum-chromium stent pairs a bioabsorbable PLGA polymer with an everolimus drug formulation. (medscape.com)

The growing use of the products in coatings, paints, and adhesives is likely to boost the emulsion polymers market growth. (acumenresearchandconsulting.com)
Furthermore, increasing the application of adhesives in the automobile coating sector is predicted to considerably contribute to the emulsion polymer market value in the coming years. (acumenresearchandconsulting.com)
Oil and water-based are the most commonly used emulsion polymers. (acumenresearchandconsulting.com)
Emulsion polymers are majorly used for paints & coatings, and automotive applications as they exhibit low VOC. (acumenresearchandconsulting.com)
Regulations such as REACH and the clean air act are the major factors driving the emulsion polymer market. (acumenresearchandconsulting.com)
The major driving factor for the emulsion polymers market is the upsurge in demand for emulsion polymers from the paints & coatings industry. (acumenresearchandconsulting.com)
Moreover, the stringent regulations by the government towards VOC emission also support the growth of the emulsion polymers market globally. (acumenresearchandconsulting.com)
In addition, the growing awareness regarding green buildings is also one of the driving factors for the emulsion polymer market. (acumenresearchandconsulting.com)
However, the volatility in the raw material cost is likely to restrict the growth of emulsion polymers during the forecast period. (acumenresearchandconsulting.com)
Also, the manufacturing of cost-effective emulsion polymers is one of the major challenges faced by manufacturers. (acumenresearchandconsulting.com)
Nevertheless, the increasing adoption of bio-based emulsion polymers globally offers huge growth opportunities for emulsion polymer manufacturers during the forecast period. (acumenresearchandconsulting.com)
Superior features such as binders, adhesion, as well as film forming, in addition to the widespread use of vinyl acetate in textiles, bookbinding, on-site building, and cardboard packaging, should drive the market size of emulsion polymers. (acumenresearchandconsulting.com)
The polymer emulsion total market is expected to be driven by an application perspective in the coatings and paints industry due to lower carbon dioxide and energy emissions during the manufacturing method. (acumenresearchandconsulting.com)

Multifunctional and nanoreinforced polymers for food packaging provides a comprehensive review of novel polymers and polymer nanocomposites for use in food packaging. (oreilly.com)
Recent advances in the field of nanotechnology led several groups to recognize the promise of recruiting nanocomposities to the ongoing battle against pathogenic gram-positive and gram-negative bacteria and metal-polymer nanocomposites are a typical example. (who.int)
In addition, a thermal annealing treatment markedly reduced signal- noise for one of the key benzene and naphthalene sensitive polymer-nanocomposites, vastly improving sensitivity for this application. (cdc.gov)

Styrene is primarily used in the production of polystyrene polymers. (who.int)

Polymers (and oligomers) can be treated as solids below their melting points- allowing users to model the entire polymer process including drying and dewatering. (aspentech.com)

When heteroatoms are present in the main chain of a polymer, degradation proceeds by photo-oxidation, hydrolysis, and biodegradation. (rsc.org)

The research team, from the U.S. and Norway, addressed this problem by growing chemically active polymer chains that are both hydrophilic and CO 2 -philic on the surface of existing membranes. (eurekalert.org)
The paper, " An Integrated Materials Approach to Ultrapermeable and Ultraselective CO 2 Polymer Membranes ," is published in the journal Science . (eurekalert.org)

Thus, the inorganic nanoparticles incorporated into a polymer matrix provide novel functionalities to hydrogels and tunable properties. (novapublishers.com)

A new technology could make it possible to produce and use high-quality glass materials in place of polymers. (photonics.com)
The design of smart materials based on different natural and synthetic polymers represents one of the most attractive research areas over the last several years. (novapublishers.com)
This book reviews recent advances and developments of various classes of stimuli responsive polymer materials, different type of hydrogels for biomedical and pharmaceutical devices, scaffolds for tissue regeneration, and stimuli-responsive sensors or separation processes. (novapublishers.com)
Surface modification of carbon materials with polymers is useful for engineering surface properties and adding functionality to carbon materials. (nature.com)
In energy storage technologies, polymer-based dielectric materials are crucial due to their low cost and great thermal as well as electrical properties. (aps.org)
In the 1920s and '30s celluloid began to be replaced in most of its applications by less flammable and more versatile materials such as cellulose acetate, Bakelite, and the new vinyl polymers. (britannica.com)
Insight into current research front in polymer technology including the role of polymeric materials in sustainable society. (dtu.dk)
Compared with the other two polymer acceptor materials, PY-Se exhibits higher crystallinity, which can be attributed to the stronger intermolecular interaction between PY-Se molecules. (azooptics.com)
In addition, an all-polymer system is considered to be one of the most potential application materials for wearable electronic devices. (azooptics.com)
Polymers are one of the most versatile materials with unlimited uses and applications. (hj.se)
Polymers are extensively used as packaging materials owing to their outstanding barrier properties against diffusing small molecules such as oxygen, carbon dioxide, nitrogen, and water vapors. (hj.se)
Sepoong Polymer will lead the way in localization of various materials through constant research and development and develop together with our customers. (sppolymer.co.kr)

Chapters assess the transport and high barrier properties of food packaging polymers such as ethylene-norbornene copolymers and advanced single-site polyolefins, nylon-MXD6 resins and ethylene-vinyl alcohol copolymers before going on to explore recent advances in various plastic packaging technologies such as modified atmosphere packaging (MAP), nanoscale inorganic coatings and functional barriers against migration. (oreilly.com)
Polypropylene random copolymers are thermoplastic resins produced through the polymerization of propylene, with ethylene or butene bonds introduced in the polymer chain. (ineos.com)

Here, we propose a graph-based Bayesian multi-task learning model to inherently capture the relation between multiple properties for a given polymer candidate. (aps.org)
Structural Order in Polymers presents the increasing importance of the relationships between order in the chemical constitution and in the steric structure of the macromolecules and physical and chemical properties of the polymers. (elsevier.com)
The complete schedule as well as the fluid properties can be found in POLYMER.DATA . (sintef.no)
We call inactive polymer a polymer which has no effect on the flow, which is the case when the values of the polymer properties are set as in LABPOLYMER2.DATA . (sintef.no)
In addition to the readily tunable structural, optical, and electrochemical properties, all-polymer organic solar cells (all-OSCs), based on polymer donors and polymer acceptors, have unique advantages, such as excellent stability and robustness compared with their counterparts based on fullerenes or small molecules non-fullerenes. (azooptics.com)
Systematic investigation shows that electron linker engineering significantly affects the physicochemical properties, intermolecular interactions, and charge transport properties of polymer acceptors. (azooptics.com)
Compared with the small-molecule non-fullerene system, the all-polymer system has better mechanical properties, which can be mainly attributed to the entanglement of polymer chains. (azooptics.com)
Our in silico approach employs a series of quantitative structure-property relationship models that facilitate rapid virtual screening of polymers based on relevant properties such as the refractive index, glass transition and thermal decomposition temperatures, and solubility in standard solvents. (mdpi.com)
There are three main grades of polypropylene resin allowing for changes in specific properties as determined by the composition of the polymer chain. (ineos.com)
In this webinar you will learn not only learn the techniques to enhance barrier properties of the polymer but also learn the active and intelligent food packing systems that give actual information of the food quality based on the thermal and UV exposure history of the food content. (hj.se)
12 spaces and address the getting properties for the download basics of polymers : fabrication and is such( likelihood) and unchanged( bitcoin). (imeli.com)
Early in Phase I, we discovered that the temperatures required for melt-extrusion were sufficiently high as to destroy the chemical sensing properties of the majority of the polymers. (cdc.gov)

The MiStent SES system contains a stent coating that includes sirolimus and the absorbable polymer. (medscape.com)
He added that these types of stents, with a biodegradeable polymer and reversion back to a bare-metal stent, represent the future workhorse stents in interventional cardiology. (medscape.com)
Boston Scientific is also in the biodegradeable polymer market with its Synergy stent. (medscape.com)
The idea is that you get rid of the polymer and then you'd basically have a bare-metal stent, which we thought would be safer in later stages," he said. (medscape.com)

We explored whether the multipotency of adipose derived stem cells (AdSCs) is maintained when they are removed from injectable polymer (IP) hydrogels with various degrees of cross-linking and induced to differentiate into osteoblasts and adipocytes. (nature.com)

DCM is used primarily as a solvent in paint removers, degreasers, aerosol products and the manufacture of foam polymers. (who.int)

In comparison to the ubiquity of their chalcogenic thiophene analogs, selenophene-incorporated conjugated polymers are relatively scarce in the organic electronics literature. (nature.com)
In this focus review, we discuss the key developments in selenophene-based conjugated polymer research from the early polyselenophene investigations, through the detailed study of regioregular poly(3-hexylselenophene), to the state-of-the-art donor-acceptor polymers that have enabled advancements in the performance and functionality of various optoelectronic devices. (nature.com)

Organized into three parts encompassing 16 chapters, this book begins with an overview of the structural regularity as a primary requisite for the crystallization of a polymer. (elsevier.com)
This text then examines the structure of cellulose, which is the most significant structural stereoregular polymer. (elsevier.com)
Polymers consist of large molecules made up of repeating structural units. (scienceinschool.org)

Recent developments in multifunctional and nanoreinforced polymers have provided the opportunity to produce high barrier, active and intelligent food packaging which can help ensure, or even enhance, the quality and safety of packaged foods. (oreilly.com)

Some attention has been drawn to additives and persistent organic pollutants that sorb to the plastic surface, but so far the chemicals generated by degradation of the plastic polymers themselves have not been well studied from an environmental perspective. (rsc.org)
Professor Park Chi-Young's team successfully developed an atypical porous polymer material that can completely remove phenolic organic contaminants in water at ultra-high speeds. (phys.org)

In BFS process, a polymer resin is melted into a parison, which is blown into a mould, filled, and sealed, all in a continuous process within a single piece of equipment. (who.int)

In the first activity, students aged 13-15 investigate the diffusion of liquids through different types of polymer membrane ( Worksheet 1 ). (scienceinschool.org)

UV-radiation and oxygen are the most important factors that initiate degradation of polymers with a carbon-carbon backbone, leading to chain scission. (rsc.org)

The Nordic Master in Polymer Technology gives the student a background in polymer chemistry and polymer physics. (dtu.dk)
In each study track the students acquire expertise in polymer chemistry and polymer physics. (dtu.dk)
The topic of polymers is often limited to chemistry lessons. (scienceinschool.org)

Polymer Engineering and Science, 50 (4), 747-755. (utwente.nl)
Polymer Engineering and Science, 50 (4), 756-761. (utwente.nl)
Journal of Applied Polymer Science, 117 (3), 1394-1404. (utwente.nl)
In Phase I of this SBIR program, Seacoast Science investigated the feasibility developing chemical vapor sensitive threads from a polymer-nanocomposite using the highly conduct nature of graphene and the selectivity of certain polymers toward specific chemical targets. (cdc.gov)
Journal of polymer science. (who.int)

download basics of polymers : fabrication and: GOOGLE CONSUMER BAROMETER, JANUARY 2018. (imeli.com)

However the process, in which polysaccharides such as cellulose are broken down and converted to polymers, is very energy intensive. (soci.org)

The art must consist of mostly extruded polymer. (polymerclaydaily.com)

The polymer acts like a bonding agent, maintaining the matrix of glass particles and thus the shape of the material. (photonics.com)
Recently, breakthroughs in material design and optimized device techniques have driven the efficiency of OSCs exceeding 19% when using the non-fullerene small molecule acceptors and polymer donors system. (azooptics.com)

Google Polymer is a new framework for building web applications based on Web Components , and it promises to bring support for all the latest HTML5 standards and all the evergreen browsers by using polyfills to compensate for missing functionality in any of them. (infoq.com)

Occupation exposure occurs through its use as a degreaser, paint remover, aerosol propellant, blowing agent for polymer foam, and as a solvent in the textile industry, photographic film production (cellulose triacetate). (who.int)

The Balance Sheet Page of Bhansali Engineering Polymers Ltd. presents the key ratios, its comparison with the sector peers and 5 years of Balance Sheet. (indiatimes.com)

Injection molded from a proprietary reinforced composite for enhanced strength and durability, our M-LOK Polymer Rail Sections are light weight and feature beveled ends to reduce snagging and eliminate sharp corners and edges. (lapolicegear.com)
Phase I focused on the determining what characteristics of polymers are necessary to fabricate robust sensing threads, and how to best process these threads for optimal sensitivity and durability. (cdc.gov)

Random polymers models are the subject of intense research within probability theory and mathematical physics, with increasingly strong connections to algebraic combinatorics, representation theory and integrable systems. (claymath.org)

however this change is small and often disturbed by other effects: polymer aging, heat transfer, crystallinity, etc. (bath.ac.uk)
As a result, this strategy of precise modification of electron linkers can be a practical way to simultaneously actualize molecular crystallinity and phase miscibility for improving the performance of all-polymer solar cells, showing practical significance. (azooptics.com)

The potential degradation pathways and products depend on the polymer type. (rsc.org)
Polymer-based products are widely used in our daily lives in various forms such as packaging, automobiles, etc. (aps.org)
NAPCO, Ltd. (North American Polymer Company), a national manufacturer of refinishing products, training, and equipment, has expanded its product guarantee to include 100 percent customer service satisfaction for all NAPCO customers. (prweb.com)
Nova Polymers is the largest manufacturer and distributor of photopolymer sign products in the United States, Canada, Europe, The Middle East and Australia. (novapolymers.com)
Manufacturer Details for Avon Polymer Products, Ltd. (cdc.gov)
The final products of amylase digestion include maltose, maltotriose, and higher residues of glucose polymers. (medscape.com)

Glassomer is a solid nanocomposite that can be structured using polymer molding and subtractive technologies at submicrometer resolution. (photonics.com)
The entire range of polymer-forming technologies is now opened for glass," said Bastian E. Rapp, head of NeptunLab at KIT's Institute of Microstructure Technology. (photonics.com)
The total global revenues from new polymer recycling technologies is forecast to reach $162bn by the year 2030. (idtechex.com)

We used polymers that Seacoast has previously shown to have good sensitivity to hydrocarbons, particularly benzene. (cdc.gov)

Depending on the study track the students get specific skills in their chosen innovative polymer technology engineering topic. (dtu.dk)
For the Hamming sizes download basics of polymers : fabrication and processing technology 500, 000 settlers of video) and the StatModelR consultant. (imeli.com)
download basics of polymers : fabrication and processing technology AND THEIR AUDIENCE DEFINITIONS. (imeli.com)
With previously a download basics of polymers : fabrication and processing technology of kilometers given, the personalization for RFCBT provides not well-kept, although it runs psychological. (imeli.com)
Specialized services in polymer technology since 1985. (polymerengineering.ca)

Air polymer-type A is a water-soluble ultrasound contrast gel indicated for sonohysterosalpingography to assess fallopian tube patency in women with known or suspected infertility. (medscape.com)
Approval of air polymer type A was based on 2 studies that compared 2- and 3-dimensional imaging to detect fallopian tube patency in women with infertility, which was confirmed by laparoscopy with chromotubation as the reference standard. (medscape.com)