How To Use Surfactant In A Sentence
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The surface concentration of the adsorbed surfactants, the surface velocity and the migration velocity of the bubble are obtained by a boundary collocation technique.
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The surface concentration of the adsorbed surfactants, the surface velocity and the migration velocity of the bubble are obtained by a boundary collocation technique.
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Silicone surfactants, and amine and tin catalysts, are also used.
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Research on surfactants and membrane solubilization showed that anionic surfactants interact more with lipid bilayers.
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Objective:To investigate the enhancing effect of some non-ionic surfactants on intestinal absorption of the main active components vitexin-2"-O- rhamnoside in Hawthorn Leaf total flavonoids.
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Administration of surfactant in neonates with infant respiratory distress syndrome has led to improved survival rates.
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In addition, a thin layer of liquid lining the alveoli exerts surface tension, tending to collapse the lungs, although this surface tension is greatly decreased by the presence of surfactant.
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Nowadays, thanks to artificial surfactants, which keep newborn lungs expanded after that first big breath, ventilators designed specifically for tiny lungs, maternal steroid therapy, the survival rates of the teenier, tinier babies are actually improving.
11 « January « 2007 « Adventures in Juggling
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Mild cleansing compositions - Mild cleansing compositions comprising anionic, nonionic and / or amphoteric surfactants, one or more dyes having a total color, and one or more encapsulated dyes, including microencapsulated dyes, in microcapsules prepared by coacervation, precipitation, polycondensation or other reaction of anionic and cationic components, which encapsulated dyes have a total color different from ...
FreshPatents.com: Notable Patent Applications - 05/07/2009
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They considered mechanical stress and chemical factors such as bleaches, pH and surfactants.
Foodconsumer.org
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In view of the complication of surfactant screening in tertiary recovery, the surfactant model reducing oil-water intension has been established so as to optimize the surfactant screening method.
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The word dendrite means fingers; the organic glue and the surfactant used to shape the Clay NanoSheets used in this hydrogel both have fingers that reach out and grab the nearby elements, holding it all together.
TreeHugger
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Consequently, basic physico-chemical research on the interaction between model lipid systems and surfactants is needed so that poloxamer therapy can be improved rationally.
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The Pharmacy Department requires that all Surfactant orders be signed or countersigned by the staff neonatologist.
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Our results suggest that the adsorption of pulmonary surfactant to an air-liquid interface can be considered in terms of two sequential steps.
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The nonstick chemicals also serve in stain-resistant coatings and as surfactants in fire-fighting foams, floor polishes, and insecticides.
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PEG (polyethylene glycol for example, PEG-100 stearate) (also an emollient and surfactant)
Simple Skin Beauty
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The material is mostly barytes, with traces of diesel oil, surfactants, biocides, heavy metals and other chemicals in the often secret formulas used by well drillers.
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Typical of recent price trends in surfactants are the movements in linear alkylbenzene sulfonates (LAS), a widely used group of synthetic surfactants that are the main cleaning ingredients in household detergents.
Purchasing - Top Stories
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Soap -- a surfactant called oleic acid -- might help the growing crystals disperse evenly.
PhysOrg.com - latest science and technology news stories
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Their activity may be enhanced by using membrane-disrupting surfactants such as quaternary ammonium compounds.
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Natural surfactant has been observed to form a structure, tubular myelin, that appears as a square lattice in electron micrographs.
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Those researchers have reported using amidine groups to imbue surfactants and solvents with CO
Chemical & Engineering News: Latest News
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Common binders are a combination of waxes and organic materials, which may include thermoplastics or thermosets along with surfactants and other additives.
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Our results suggest that of the multiple structures which different monolayers form when supercompressed, pulmonary surfactant collapses by the same mechanism as other compounds that form smectic liquid-crystal bulk phases.
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On the one hand, a monomolecular layer of the most abundant molecular species, DPPC, can reduce the surface tension close to zero, like the entire surfactant.
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Did a bit of work with stress reducers and surfactants vis a vis permalloy plating 20 years ago.
More Unthreaded « Climate Audit
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Sometimes surfactants are mixed into solvent sealers so that the residue will mix with water for easier cleanup afterwards.
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Upon separation, the surfactants lose all surface-active behavior.
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Finally, addition of cationic surfactants to lipid membranes leads to hole formation.
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Try using a cleanser with an extra-gentle surfactant such as polysorbate 85 or 60, cocamidropropyl betaine, or caprylic acid, and make sure it has added humectants and emollients.
Simple Skin Beauty
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Similar approaches were used for the adsorption of surfactants and polymers.
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The lower efficiency of surfactants with large headgroups can be understood as a steric effect, where a bulky headgroup sterically hinders the hydrophobic residues on the peptide from interacting with the micelle core.
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Bullard KM, Sonne J, Hawgood S, Harrison MR, Adzick NS: Tracheal ligation increases cell proliferation but decreases surfactant protein production in fetal murine lungs in vitro.
CHOP congenital diaphragmatic hernia publications
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Their surfaces were subsequently stabilized by passivating surfactants, concentrated, and then redispersed in an epoxy used to form the dome of the LED.
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The method might also prove highly valuable for the investigation of surface-active substances other than pulmonary surfactant.
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This same swimming response can be elicited by contact with several other seastars, or by surfactants such as soaps and detergents, or by strong salt solutions.
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Wetsel and his colleague Dachun Wang, M.D., an IMM instructor, used a genetic selection procedure they created to generate a type of lung cell known as alveolar epithelial type II, which secretes surfactant, a substance that keeps the lung inflated, and can turn into another important lung cell that regulates the transfer of oxygen into the blood and the removal of carbon dioxide.
THE MEDICAL NEWS
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The invention discloses a washing and softening laundry detergent composition, which comprises cationic softener, nonionic surfactant, thickener, opacifier and deionized water.
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An important case of adsorption on liquid surfaces is that of surface-active or surfactant molecules at the water-air or water-oil interface.
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Their activity may be enhanced by using membrane-disrupting surfactants such as quaternary ammonium compounds.
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This will then allow observing directly the structure-function relationship of pulmonary surfactant and any other surface-active substance.
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surfactants" called methylene blue active substances in her well water and her pond.
The Altoona Mirror
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The third item on the list is a surfactant like liquid dishwashing detergent.
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This phosphate group makes phospholipids polar like surfactants.
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The inherent positive charge of the quaternary nitrogen and hydrophobic retinoid side chains in A2E suggest that it may behave as a surfactant.
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The primary conditioning ingredients are cationic surfactants, silicones, and polymers.
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The company's dishwashing liquid, for example, contains surfactants made from vegetable oil, as well as ingredients such as aloe vera and wheat protein.
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When you combine the corn syrup with a water conditioner or surfactant system, you get synergies that help in the movement and performance of the product.
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Soap - a surfactant called oleic acid - might help the growing crystals disperse evenly.
Energy News - Energy Technology - Energy Business - Energy and the Environment
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Surfactants are usually used at 1 / 4% by spray volume or 1 quart per 100 gallons of spray mixture.
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The company's dishwashing liquid, for example, contains surfactants made from vegetable oil, as well as ingredients such as aloe vera and wheat protein.
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Silicone surfactants, and amine and tin catalysts, are also used.
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Water is a fabulous cleaning agent, but it's even better when tiny nanoscale particles, such as detergent surfactants, are dispersed in it.
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Many cleaning products contain chlorine, petroleum-based surfactants and distillates, formaldehyde and germicides - many of which are potent poisons.
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SCO is an anionic surfactant obtained by saponification of triglycerides extracted from Cocus nucifera and is a compound widely used in the formulation of many cosmetic and hygiene products.
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The surfactants include fluroethers, oligomers of propylene-oxide, siloxanes, etc.
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‘Surfactant keeps the tiny air sacs in the lungs open,’ Hein says.
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Latex emulsions are made up of polymeric materials suspended in an aqueous solvent by a surfactant.
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This same swimming response can be elicited by contact with several other seastars, or by surfactants such as soaps and detergents, or by strong salt solutions.
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Danny said they're all pretty much sodium hydroxide and sodium hypo-something, but the surfactants are different.
DO NO HARM
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The surfactant group exhibited less lung injury on histology and biochemistry.
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For example, there is not a lot of excess capacity for linear alkylbenzene sulfonates (LAS), the world's largest volume surfactants, Burns observes.
Purchasing - Top Stories
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The researchers thought that paraffin wax, which is made up of long straight molecules that don't react with much, might help line things up, while soap, a surfactant called oleic acid, might help the growing crystals disperse evenly.
Gizmag Emerging Technology Magazine
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SURFACTANTS - Aid in helping to keep toilet bowls and urinals stay clean and shinny with every flush.
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Non-ionic surfactants act as accelerators of diffusion in the cuticular wax barrier.
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Her PhD thesis investigated the role of surfactants and emulsions in the petrochemical industry, and detailed the chemical mechanisms involved in road making.
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Also known as surfactants, these materials help stabilize the system by reducing the interfacial tension between the two phases.
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The addition of the surfactants can accelerate remediation work.
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Research on surfactants and membrane solubilization showed that anionic surfactants interact more with lipid bilayers.
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It is the main functional constituent of the natural surfactants, and the body's foremost reservoir of choline, an essential nutrient.
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Latex emulsions are made up of polymeric materials suspended in an aqueous solvent by a surfactant.
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Latex emulsions are made up of polymeric materials suspended in an aqueous solvent by a surfactant.
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They include such materials as thickeners, surfactants, defoamers, biocides, and pigment dispersants.
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Others are developing alternative approaches for fluid control, including the use of electroactive surfactants or chemically controlled valves.
The Scientist
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These studies address the effect of the hydrophobic surfactant proteins on diffusion within lipid bilayers.
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We also varied the end group of the trichlorosilyl surfactant, using an amine, vinyl, bromo, or phenyl group to provide other surfaces of differing hydrophobicity.
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Several of these genes with significantly decreased expression play important roles in fluid absorption and the synthesis, trafficking, or reutilization of surfactant proteins and phospholipids.
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Try using a cleanser with an extra-gentle surfactant such as polysorbate 85 or 60, cocamidropropyl betaine, or caprylic acid, and make sure it has added humectants and emollients.
Simple Skin Beauty
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Water is a fabulous cleaning agent, but it's even better when tiny nanoscale particles, such as detergent surfactants, are dispersed in it.
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The primary conditioning ingredients are cationic surfactants, silicones, and polymers.
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Anionic surfactants on foam stability significantly larger than non - ionic surfactants.
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The Illinois Department of Natural Resources said the substance was alkylbenzene sulfonic acid anionic surfactant, which commonly used in laundry detergent products.
DailyHerald.com > News
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Its key advantage, says George Jackson, professor of chemical physics, is the ability to predict very accurately the behaviour of complex strongly-associating systems such as azeotropic refrigerant mixtures, aqueous solutions of non-ionic surfactants and strong electrolyte solutions, as well as high molecular weight components such as polymer-gas systems.
All Things Press Release
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The amphiploid species Brassica napus (oilseed rape, Canola) is a globally important oil crop yielding food, biofuels and industrial compounds such as lubricants and surfactants.
BioMed Central - Latest articles
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The addition of crop oil, surfactant, or fluid fertilizer may improve control of emerged weeds.
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This contains mild, sulfate-free surfactants such as sodium cocoyl glutamate, caprylic acid or sodium lauroyl, from coconuts and amino acids, respectively, derived from the same natural sources as regular soap and synthetic detergents.
Simple Skin Beauty
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This is the result of there being too little of a substance known as a surfactant, which acts as a kind of detergent or wetting agent to lower the surface tension of the fluid in the lungs.
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In 1937 the first cationic surfactants were used in bituminous road construction and these were quaternary ammonium salts.
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One of the surfactants we're using, sodium cholate, has a molecular structure that's similar to a nanotube -- basically hexagons put together," he said.
PhysOrg.com - latest science and technology news stories
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By adding a surfactant with an additive (to prevent adsorption of the surfactant to the rock), the viscosity of the oil can be lowered to around 15 centipoise (essentially making the oil lighter).
Marketwire - Breaking News Releases
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AIM : To investigate the active effect of eustachian tube surfactant ( ETS ) associated protein.
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This remarkable compaction can be reproduced in vitro by adding a small amount of condensing agent, such as polyamines, multivalent metal cations, cationic surfactants, or neutral polymers to a DNA solution.
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Often referred to as “syndet bars” or “soap-free” soaps, these use synthetic—and usually milder—surfactants such as sodium cocyl isethionate which is derived from coconuts or sodium palmitate.
Simple Skin Beauty
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Surfactant therapy attenuated this deterioration, but not completely.
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Experiments conducted in greenhouse showed that the efficacy of nicosul-furon on crabgrass was affected by weed size, surfactants and rain interval.
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A water-based drilling mud additive comprising a pre-blended combination of about 2 parts of high softening point uintaite, about 1 part of a lower softening point uintaite, about 1 part of causticized lignite, and a strongly lipophilic, non-ionic surfactant is disclosed.
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They act like surfactants and displace ‘foaming’ beer proteins from the surface.
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The use of crop oil, surfactants or fertilizer solutions generally increases burndown activity of these herbicides.
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Similar results for the SOS Chromotest were obtained with various non-ionic surfactants, such as Tween 20 and 80, Triton X - 305 and Tyloxapol.
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Alkanolamides belong to nonionic surfactants. Synthesis of alkanolamide from fatty acid using two - step method was introduced.
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In 1937 the first cationic surfactants were used in bituminous road construction and these were quaternary ammonium salts.
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Gordon Graff -- Purchasing, 12/2/2009 1: 58: 26 PM Despite a decline in demand, prices for surfactant linear alkylbenzene sulfonate have remained stubbornly higher than other chemicals, steadily increasing off a cyclical bottom in April.
Purchasing - Top Stories
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Common binders are a combination of waxes and organic materials, which may include thermoplastics or thermosets along with surfactants and other additives.
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To maximize the chance of extubation to nCPAP we chose to use a combination of surfactant and caffeine as a respiratory stimulant to enable preterm neonates to be maintained on nCPAP.
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The characteristics of the transformed films and of the process by which conversion occurs challenge current models of the stable surfactant film.
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Metrohm's Surfpac solution can be used to determine the surfactant activity in raw materials, dying and washing agents, cleaners and cosmetics by potentiometric titration.
Manufacturingtalk - manufacturing industry news
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Also called RDS or hyaline membrane disease, respiratory distress syndrome is a condition of premature infant lungs due to insufficient sufactant (see surfactant).
Glossary
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One of the major advances in neonatal respiratory care is the introduction of surfactant.
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The most commonly used spray additives include oils, surfactants, and certain fertilizers.
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The inhibition behavior of N - dodecyl benzotriazole cationic surfactant ( DBCS ) for mild carbon steel in 1.
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The surfactants include fluroethers, oligomers of propylene-oxide, siloxanes, etc.
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Their research shows that the surfactant layer must be analyzed in terms of its vibrational couplings, rather than by ordinary heat conduction.
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Latex emulsions are made up of polymeric materials suspended in an aqueous solvent by a surfactant.
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DNA) or targeted drug release (for the protein-polymer conjugates) using lipidic structures rather than synthetic polymers or surfactants.
Naturejobs - All Jobs
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Biological activities of amphoteric surfactants to higher or lower organisms were introduced.
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Surfactant helps to keep the baby's alveoli open; without surfactant, the lungs collapse and the baby is unable to breathe.
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Ingredients: Deionized water, glycerin, stearic acid, myristic acid, lauric acid, potassium hydroxide, amino acid surfactant, ethylene glyceryl diester, imidazolidinyl urea, essence, etc.
