Hydrophilic polymer phases. Medical search. Frequent questions

This dissertation presents the synthesis of stimuli-responsive hydrophilic diblock copolymers and the study of their behavior in water under various conditions. (tennessee.edu)
Highly swollen crosslinked hydrophilic copolymers called "hydrogels" are synthesized by free radical crosslinking copolymerization with some multifunctional crosslinkers with some co-monomers including hydrophilic groups for increasing of their swelling capacity. (scirp.org)
For example, the OEG-grafted (meth)acrylates copolymers show typically lower critical solution temperature (LCST) behavior with obvious tunable phase transition temperature. (databasefootball.com)
Poloxamers, also called Pluronic, belong to a unique class of synthetic tri-block copolymers containing central hydrophobic chains of poly(propylene oxide) sandwiched between two hydrophilic chains of poly(ethylene oxide). (mostwiedzy.pl)
We are interested in the dynamics of these heterogeneous polymer materials, such as block copolymers and polymer-grafted nanoparticles. (fsu.edu)
The present work deals with the preparation of ultrafiltration (UF) and microfiltration (MF) membranes with enhanced fouling resistant ability by using two different methods, liquid- induced phase separation (LIPS) and vapor-induced phase separation (VIPS), after in-situ modification of the PVDF solution using amphiphilic PS-b-PEGMA block copolymers as additive. (ncl.edu.tw)

Hydrophilic interaction chromatography (HILIC) is an increasingly popular separation mode that can be used to improve the retention of challenging polar analytes. (shimadzu.com)
Materials for reverse phase chromatography are characterized by effective endcapping. (separlab.eu)
For chromatography, where the mobile phase which contains a very high percentage of water must be used RP sorbents which active layer is containing a small amount of polar groups (aqua) are delivered. (separlab.eu)
For SEC chromatography, hydrophilic polymers and biopolymers are useful materials labeled DIOL. (separlab.eu)

It is postulated that the membranes are a nano-scale composite structure comprising interpenetrating networks of hydrophobic and hydrophilic regions of size determined by the preparation procedure. (bl.uk)
RIS has been successfully performed on both hydrophobic and hydrophilic IOLs in vivo. (medscape.com)

This paper presents the first analytical solutions for the coupled synergistic behavior of LSW and polymer flooding considering CE reactions, wettability alteration, adsorption, inaccessible pore volume (IPV), and salinity effects on polymer viscosity. (onepetro.org)

As such, ionic polymer when mixed with DSCG does not form w/w emulsion, but gives rise to a homogeneous solution or a precipitate solution. (wikipedia.org)
The idea was that the hydrophilic polymer (PEO) would interact with water molecules and ionic species, and the hydrophobic polymer (PVC) would serve as an inert matrix, intimately tangled with the hydrophilic polymer to prevent its diffusion into the aqueous solution phase. (bl.uk)
Even for LC columns that claim to be designed for basic compounds, adequate resolution often can not be obtained due to problems such as leading of highly polar basic compounds, peak shape deterioration of acidic compounds, or long equilibration time required for low ionic strength acidic mobile phase. (shimadzu.com)
The polymers operate within a physiologically relevant window in terms of temperature, pH, and ionic strength. (ugent.be)
Effect of Salt Type and Alkyl Chain Length on the Binodal Curve of an Aqueous Two-Phase System Composed of Imidazolium Ionic Liquids. (acs.org)
Here, the focus will be dependent on the solid-state characterization of dipole and/or ionic z pak phases in mixtures. (losaltos.com)

Based on the change in existing form of poly-MPC modified on the surface of stationary phases, ion-exchange properties of poly-MPC were controllable to result in interesting selectivity changes in HPLC. (go.jp)

The gel properties were not significantly affected by the incorporation of the micelles even when the polymer concentration reached 5 mg/g. (tennessee.edu)
Then, the coupled multiphase-flow and reactive-transport model is decoupled into three simpler subproblems-the first in which CE reactions are solved, the second in which a variable polymer concentration can be added to the reaction path, and the third in which fractional flows can be mapped onto the fixed cation and polymer-concentration paths. (onepetro.org)
Induction of anesthesia is a phase characterized by rapid changes in both drug concentration and drug effect. (stanford.edu)
The phase transition temperature (clouding points) is highly dependently on the degree of polymerization (DP), the side-chain length, the polymer concentration. (databasefootball.com)

Synthetic surfactants are aliphatic oligomer tails modified with hydrophilic head groups, and have been traditionally designed for use as detergents or colloidal stabilizers. (europa.eu)
Recently, production of synthetic peptides is achieved commercially by solid-phase peptide synthesis (SPPS) or in combination with solution phase method pioneered by Robert Bruce Merrifield. (rgcb.res.in)
These sorbents may therefore be successfully used for the SEC hydrophobic synthetic polymers. (separlab.eu)
Synthetic polymer hydrogels constitute a group of biomaterials, used in numerous biomedical disciplines, and are still developing for new promising applications. (mostwiedzy.pl)

This water-in-water emulsion consists of liquid crystals suspended as water-solvated droplets dispersed in a solution of polymer whose solvent is also water. (wikipedia.org)
The strengthening of interfacial molecular interactions in w/w emulsions results in the formation of a layer of polymer that coats the surface of the droplet which consequently prevents droplets from clumping together. (wikipedia.org)
In double emulsions, the multiphasic system permits additional destabilizing mechanisms, such as the coalescence of the inner droplets and diffusion of the inner phase and the outer phase due to gradients in osmotic and Laplace pressure. (springeropen.com)
As an example, the co-deposition of emulgated silicone oil droplets onto hydrophilic and hydrophobic surfaces has been studied for formulations containing anionic surfactant and cationic polymers of varying hydrophobicity. (lu.se)

The combination of a nonionic/anionic hydrophilic tail on Hitenol BC-10 (Figure 3) produces the desired particle diameter. (adhesivesmag.com)

An ion-exchange monomer including an anion exchange group and a cation exchange group, 2-methacryloyloxyethyl- phosphoryl choline (MPC) was introduced on the surface of uniformly sized, hydrophilic macro-porous polymer particle. (go.jp)
We carefully studied several solvents utilized for the surface modification to elucidate solubility of the monomer as well as its polymer into each solvent. (go.jp)
It is based on conventional IP method employed in polymeric membrane fabrication wherein MWCNTs are dispersed in one of the monomer containing phases. (njit.edu)
those with hydrophilic groups are generally dispersed in monomer-containing aqueous solution and those with hydrophobic groups are generally dispersed in monomer containing organic solvent prior to fabricating IP-based membranes. (njit.edu)

The method allows the synthesis of diaminoketothiazole wherein the 2-substituted amino group and 5-acyl group can be widely varied for solid phase and combinatorial library synthesis of 4-amino-2-(aryl/alkyl) amino-5-alkanoyl/hetaroyl/aroylthiazoles (DAT). (rgcb.res.in)
The Hallinan lab has custom capabilities in polymer synthesis, various air-free experiments, advanced time-resolved spectroscopic methods, and access to a full suite of materials characterization facilities at university and college centers as well as at the nearby National High Magnetic Field Laboratory. (fsu.edu)
Although not required, special consideration will be given to applicants with experience in the areas of polymer synthesis, membrane separations/transport, and/or electrochemistry. (fsu.edu)
Solid-Phase Peptide Synthesis of Endothelin Receptor Antagonists on Novel Flexible, Styrene-Acryloyloxyhydroxypropyl Methacrylate-Tripropyleneglycol Diacrylate [SAT] Resin. (tkmcas.ac.in)
Synthesis, Characterization, and Evaluation of PS-PPDC Resin: A Novel Flexible Cross-linked Polymeric Support for Solid-Phase Organic Synthesis. (tkmcas.ac.in)
Poly(ethylene glycol) grafted polystyrene dendrimer resins: Novel class of supports for solid phase peptide synthesis M.A.Siyad and G.S. Vinod Kumar. (tkmcas.ac.in)
Synthesis, Characterization and Application of Bisphenol A Glycerolate Dimethacrylate Cross-Linked Polystyrene (PS-BGD): A Flexible Support for Gel Phase Peptide Synthesis. (tkmcas.ac.in)
Synthesis and Evaluation of chloro SPIRO and amino SPIRO Supports: Novel Hydrophilic Cross-linked Polystyrene Polymers for Solid Phase Peptide Synthesis. (tkmcas.ac.in)

The aqueous phase viscosity is a function of polymer and salt concentrations. (onepetro.org)
A common soap film is uniquely characterized by a proton conducting, flexible, semipermeable, quasi 2-D aqueous phase, which doubles as a smooth (3.2Å roughness) and low defect substrate for self-assembled surfactant monolayers on its opposite surfaces. (europa.eu)
In this study, the encapsulation of vitamin D3 into a double emulsion with psyllium gum in the aqueous phase and lecithin in the oil phase was optimized and modeled. (springeropen.com)

Using interfacial polymerization (IP), a facile procedure for fabricating highly productive solvent-resistant nanofiltration membranes has been developed via a polymer-CNT composite. (njit.edu)

One of the advantages of hydrogels consists in their capability of high swelling and in exhibiting a first-order phase transition (collapse) caused by a small change in external conditions such as temperature, electric ﬁeld, solvent composition, etc. [14] - [19]. (scirp.org)
In this composite the IP-generated polyamide provides the selectivity and the nanogaps between the external surfaces of CNTs externally functionalized with hydrophilic/hydrophobic groups and the matrix polymer enhance solvent flux by an order of magnitude. (njit.edu)
nm diameter dispersed in the polymerized matrix provide a very low resistance pathway for solvent transport via the interface between the polymer and the outer surface. (njit.edu)

The use of a polymerizable surfactant improves the particle stability and reduces the amount of free hydrophilic material available. (adhesivesmag.com)

Herein, we design such transiently responsive polymers that exhibit UCST behaviour while gradually losing this property in response to a hydrolysis reaction in the polymer side chains. (ugent.be)
Hydrogels are three-dimensional networks of hydrophilic polymer chains with properties in between liquids and solids. (scirp.org)
We, therefore, attribute to the absence of secondary conformation in polypeptoids, where the short polymer chains enable more exposure of hydrophobic segments to the water phase, which results in the lower CP. (databasefootball.com)

Its advantages are excellent water resistance and good compatibility with organic polymers and resins. (appflameretardant.com)

Thus, the separation of hydrophobic/hydrophilic groups cannot be applied to DSCG. (wikipedia.org)
Results showed that hydrophilic and gas separation properties of PSF/PEG membranes increased by plasma surface modification. (hindawi.com)
Typically, the permeability of asymmetric polymeric gas separation membranes prepared by phase inversion techniques is quite low and unsuitable for practical use. (hindawi.com)
For the CO 2 /CH 4 separation, the hydrophilic property of the membrane surface has an influence on the CO 2 permeation rate. (hindawi.com)
Separation methods have been reported, rosulip f straight phase conditions. (losaltos.com)
An enhanced surface adsorption is typically obtained from dilute mixtures of a polyelectrolyte and an oppositely charged surfactant under conditions when there is a bulk associative phase separation in the mixture. (lu.se)
Often the phase-separation and enhanced deposition can be obtained by a simple dilution process. (lu.se)

It is proposed that the dominant effect on permselectivty in the membranes studied here is a modification of the interaction between ions and water within the membrane channels formed by a hydrated hydrophilic polymer. (bl.uk)
Therefore, the permeation rate of CO 2 was enhanced by increasing the hydrophilic property of the membrane surface [ 3 , 4 ]. (hindawi.com)
In 1998, Kim and Lee [ 5 ] studied the effect of PEG on membrane formation by phase inversion. (hindawi.com)
The membrane fabrication technique proposed is easily scalable and can be adapted to a variety of liquid phase separations. (njit.edu)

Whereas such behaviour has been reported earlier for LCST systems, it is at present unexplored for UCST polymers. (ugent.be)
Furthermore, we demonstrate that, in contrast to LCST polymers, in aqueous medium the UCST polymer forms a coacervate phase below the UCST, which can entrap a hydrophilic model protein, as well as a hydrophobic dye. (ugent.be)

Thin fibers of polymer accumulated on the collector plate, with the enzyme embedded inside, until a solid mesh was obtained. (eurekalert.org)

Shim-pack MAqC-ODS I reversed-phase columns are packed with a silica gel containing metal and added octadecylsilyl group. (shimadzu.com)
Shim-pack WAX/WCX series columns are chemically-bonded hydrophilic silica gel based ion exchange columns. (shimadzu.com)

In this study, we present an enzyme-based fluorometric electrospun fiber sensor (eFES) mesh as a gas-phase biosensor in dry form. (iitani.com)
Researchers at Tokyo Medical and Dental University (TMDU) demonstrate an enzyme-based biosensor in the form of an electrospun polymer mesh that can detect volatile organic compounds, which may help healthcare providers more rapidly disease screening and metabolism assessment. (eurekalert.org)
Tokyo, Japan - Scientists from the Tokyo Medical and Dental University (TMDU) introduce an easy method for manufacturing biosensors made from electrospun polymers. (eurekalert.org)

The collaborative team assembles Polymer Science faculty in the disciplines of Chemical Engineering and Chemistry. (fsu.edu)
A Ph.D. in the area of Chemical Engineering, Chemistry, Polymer or Materials Science and Engineering, or another relevant discipline must be completed by the time of employment. (fsu.edu)

In particular, thermal-responsive polymers, which are able to exhibit a reversible phase, transition in a controlled manner to temperatures, which offer great potential for biomedical applications such as drug carriers, smart hydrogels, and stimuli-responsive surfaces. (databasefootball.com)
Hydrogels consist of a hydrophilic polymer network and a large amount of water as the dispersion medium. (imechanica.org)

Soft matters can be viewed as the cross-media assemblies of solids and fluids, or as composites with solid and fluid phases. (imechanica.org)

This w/w emulsion was generated when the different water-solvated molecular functional groups get segregated in an aqueous mixture consisting of polymer and liquid crystal molecules. (wikipedia.org)
2. As the droplet size increases, the molecular interactions at the interface of the droplet phase and the continuous phase become stronger through multivalent interactions. (wikipedia.org)
GFC is used to separate water-soluble high polymers such as polysaccharides, proteins, and nucleic acids according to their molecular sizes by using hydrophilic packing materials and aqueous mobile phase. (shimadzu.com)
The peptoid polymers with high molecular weights and large-scale yields can be obtained by ring-opening polymerization technique. (databasefootball.com)

Its lipophilic backbone interacts with nonpolar hydrocarbon residues of the analytes while the linked hydrophilic groups interact with polar functional groups to provide enhanced retention. (mn-net.com)

It was shown that membranes prepared by co-casting polymers from solution were indeed stable in water and that the properties could be changed by change in fabrication procedure which changed the microstructure. (bl.uk)

R.X. Zhuo, B. Du, Z.R. Lu, "In vitro release of 5-fluorouracil with cyclic core dendritic polymer," J. Control Release 57(22 February 1999):249-257. (nanomedicine.com)

Polymer/clay or polymer/zeolite hybrid composite polymeric systems have received great attention because of their relatively low production cost and high adsorption capacity for water, some dyes and metal. (scirp.org)

It is conceivable that the thermal-responsive property arises from the thioether groups introduced by the thiol-yne click chemistry reaction that vary the hydrophilic-hydrophobic balance. (databasefootball.com)
A Postdoctoral Scholar position is available for a research project in POLYMER MEMBRANES, jointly carried out in the Florida A&M University−Florida State University (FAMU-FSU) College of Engineering Department of Chemical and Biomedical Engineering and the Department of Chemistry and Biochemistry at FSU. (fsu.edu)
The candidate will work closely with the team of PIs consisting of Daniel Hallinan Jr. ( Chemical & Biomedical Engineering ), Justin Kennemur ( Chemistry and Biochemistry ) and Joseph Schlenoff ( Professor of Polymer Science ), as well as with their respective research teams. (fsu.edu)

Generally, etching and deposition processes occur at the same time when the polymeric membranes are treated with the discharge plasma from non-polymer forming gases [ 1 ]. (hindawi.com)

both the droplet and continuous phases contain different molecules that are entirely water-soluble. (wikipedia.org)
Apart from being water-soluble, one important criterion for the generation of this w/w emulsion system is that the polymer cannot bear functional groups that interact strongly with DSCG. (wikipedia.org)
Traditionally known PDLC consists of oil-in-water emulsion where the oily droplet is a thermotropic liquid crystal such as 4-pentyl-4'-cyanobiphenyl (5CB), and the water phase contains certain polymers. (wikipedia.org)
In comparison, this water-in-water emulsion consists of Polymer-Dispersed Lyotropic Liquid Crystals, where the lyotropic liquid crystal is DSCG molecules solvated in water. (wikipedia.org)
The water-in-water emulsion of polymer-dispersed lyotropic liquid crystals has the potential for building highly bio-functional materials because of its compatibility with protein structure. (wikipedia.org)
PTEGMA and PDEGEA are thermosensitive polymers with LCSTs of 58 and 9 °C [degree Celsius], respectively, in water. (tennessee.edu)
image: The electrospinning enzyme string was made with enzyme and coenzyme containing water-soluble polymer solution (top). (eurekalert.org)
Polymer flooding can significantly improve sweep and delay breakthrough of injected water, thereby increasing oil recovery. (onepetro.org)
Polymer viscosity degrades in reservoirs with high-salinity brines, so it is advantageous to inject low-salinity water as a preflush. (onepetro.org)
The solutions are used to develop a front-tracking algorithm, which can solve the slug-injection problem of low-salinity water as a preflush followed by polymer. (onepetro.org)
If the film composition is semi-permeable, the hydrophilic pockets will swell when exposed to water. (adhesivesmag.com)
For example, if the time frame of film formation is long enough, some of hydrophilic material may follow the receding water phase. (adhesivesmag.com)
To solve these issues, pickering particles or a mix of surfactants and gelling agents (to stabilize the inner or outer emulsion or gel the water phase or crystallize the fat phase) may be used [ 5 ]. (springeropen.com)
Polymer membranes for batteries, water, or carbon dioxide capture must be mechanically strong with selective transport properties. (fsu.edu)
For example, we can combine a hydrophilic phase that conducts water or ions with a hydrophobic material that provides mechanical strength. (fsu.edu)

Hydrophilic material becomes trapped between those particles and naturally attracts moisture. (adhesivesmag.com)

This may result in pockets with higher concentrations of hydrophilic material dispersed within the film. (adhesivesmag.com)

However, few studies and reports have considered the integrated prevention and control of multiple hazards, which is related to the difficulty of analyzing the reaction mechanisms of multiple hazards at multiple scales and under multiple phases in complex food matrices. (bvsalud.org)
These results hold great potential for the launch of CD polymers both as reaction vessels for green, homogeneous photocatalysis and as a drug delivery carrier of oxygen-releasing agents in tissues. (carbohyde.com)
Practically absolute endcapping is achieved by reaction in the gaseous phase and is used for sorbents labeled HE. (separlab.eu)

The swollen pockets usually have a refractive index different from that of the polymer. (adhesivesmag.com)
Applying this laser to a hydrophilic acrylic IOL not only selectively changes polarity and refractive index but also allows for the creation of 3D structures within an IOL. (medscape.com)

Polysulfone/polyethylene glycol (PSF/PEG) membranes were prepared by dry/wet phase inversion method. (hindawi.com)
For the addition of the third component in the polymer solution, polyethylene glycol (PEG) is one of the most important additives used. (hindawi.com)

This IOL includes a proprietary photoreactive silicon e macromer in a medical-grade silicone polymer matrix. (medscape.com)

In order to increase the permeability of gas, hydrophilic properties, selective layer thickness, and porosity of the membranes have to be improved. (hindawi.com)

The complex coupled effects of CE reactions, polymer properties, and multiphase flow and transport have not been explained to date. (onepetro.org)
The work described in this thesis was carried out as part of a project to explore the use of solid polymer electrolytes as pH electrodes, the properties of which would be superior to those of the fragile glass membranes traditionally used. (bl.uk)
It is known that a couple of polymers containing oligo (ethylene glycol/OEG) moieties exhibit thermal-responsive properties due to their hydration and dehydration of the groups. (databasefootball.com)
The hydrophilic properties, metallic. (mostwiedzy.pl)
Multiple phases dispersed throughout a material enables advanced properties that cannot be achieved in materials without structure. (fsu.edu)

The dry-form biosensor-eFES mesh-will open a new direction for gas-phase biosensors because of its remarkable performance and simple fabrication, which is advantageous for commercialization. (iitani.com)

The present invention isa new solid phase method for the preparation of DAT to make this lead molecule as a new class of small molecules as a potent antimitotic agents for the control of cytoskeletal functions and cell proliferation. (rgcb.res.in)
The process by which two molecules of the same chemical composition form a condensation product or polymer. (bvsalud.org)

We performed 8 times of heating and cooling cycles between 20 and 50 o C. The phase transition is completely recovered, indicative of good stability to temperature (see figure from the article). (databasefootball.com)
It was also demonstrated that the two-phase area was expanded with a decrease in temperature. (acs.org)

Latex made with this level of surfactant will still blush because of the increased level of hydrophilic material, which causes swelling of the pockets to diameters larger than 40 nm. (adhesivesmag.com)
The 85-nm latex needs to be made with a lower level of surfactant to take advantage of the smaller hydrophilic pockets. (adhesivesmag.com)

Complexation of the hydrophobic substrates within a hydrophilic cyclodextrin polymer allowed their photooxygenation in a homogeneous aqueous environment. (carbohyde.com)

Chapter 4 shows that by incorporating a small amount of carboxylic acid groups into both blocks of a doubly thermosensitive diblock copolymer, the C-shaped sol-gel phase diagram can be readily and reversibly shifted by changing the solution pH. (tennessee.edu)

Gels do not dissolve but swell/shrink (i.e., change their volume) in contact with liquid phases. (scirp.org)
These pockets with more hydrophilic material will continue to swell and cause a normally clear film to blush. (adhesivesmag.com)

In a process called "phase wrapping," a convex lens is reduced by the femtosecond laser to a thin layer of approximately 50 μm in thickness, creating multiple refractive zones. (medscape.com)

State-of-the-art spherical polymer for highest demands in solid phase extraction. (mn-net.com)
A large number of short peptoid oligomers with precise sequence and chain length up to 50 monomers have been synthesized by a solid-phase approach. (databasefootball.com)
Significant improvements in safety, cost, and energy density of commercial batteries are possible by replacing the currently used liquid electrolyte with solid (polymer) electrolyte. (fsu.edu)

Polymer Journal. (elsevierpure.com)
The study, "Insights into the multiscale lubrication mechanism of edible phase change materials," was published in the journal ACS Applied Materials and Interface . (pcm-ral.org)

The polymer solution serves as the medium or continuous phase of the w/w emulsion. (wikipedia.org)
The early work on CO 2 -sensitive inks is then described, where such inks comprise a hydrophilic pH-sensitive dye anion, coupled with a lipophilic quaternary ammonium cation, dissolved in a nonaqueous solution of a polymer which, when cast, forms a dry ink film that gives a reversible color response when exposed to CO 2 both in the gas phase and dissolved in solution. (qub.ac.uk)

They have been used successfully in the past to model steady-state or near steady-state kinetics, but never have they been used to model induction-phase kinetics using a high-resolution pharmacokinetic dataset. (stanford.edu)

Consequently, the known polymers that afford w/w emulsion include polyacrylic amides and polyols. (wikipedia.org)
This w/w emulsion also represents a new class of polymer dispersed liquid crystals(PDLC). (wikipedia.org)

Chemicals and Drugs14

Analytical, Diagnostic and Therapeutic Techniques and Equipment6

Phenomena and Processes4

Disciplines and Occupations2

Technology, Industry, Agriculture6

Copolymers6

Chromatography4

Hydrophobic and hydrophilic2

Behavior1

Ionic6

Stationary phases1

Concentration4

Synthetic4

Droplets4

Anionic1

Monomer4

Synthesis8

Aqueous phase3

Interfacial1

Solvent3

Particle1

Chains3

Resins1

Separation7

Membrane4

LCST2

Fibers1

Silica2

Electrospun3

Chemical Engineering2

Hydrogels2

Composites1

Molecular4

Analytes1

Membranes prepared1

Cyclic1

Adsorption1

Chemistry3

Polymeric1

Water15

Particles1

Concentrations1

Reaction3

Refractive index2

Polyethylene2

Silicone1

Selective1

Properties5

Biosensors1

Molecules2

Temperature2

Surfactant2

Homogeneous1

Groups1

Swell2

Thickness1

Solid3

Journal2

Solution2

High1

Emulsion2