Polyelectrolyte Complexes
Effects of high treatment levels in a dry-strength additive program based on deposition of polyelectrolyte complexes: How much glue is too much?
... of polyelectrolyte complex- es at high dosages. Polyelectrolyte complexes were formed by two basic techniques, sequential addition and ...trolyte complexes were able to deposit onto the ...
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FORMULATION AND EVALUATION OF METFORMIN HYDROCHLORIDE SUSTAINED RELEASE TABLETS USING POLYELECTROLYTE COMPLEXES
... The present study involves formulation and evaluation of sustained release tablets of metformin hydrochloride which is BCS Class-III drug, using polyelectrolyte complexes of gum karaya-chitosan. ...
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Polyelectrolyte complexes: A review of their applicability in drug delivery technology
... of polyelectrolyte complexes have been the focus of intensive fundamental and applied ...Interpolyelectrolyte complexes combine unique physicochemical properties with high ...of ...
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Deposition of polyelectrolyte complexes as a mechanism for developing paper dry strength
... surfaces polyelectrolyte complexes formed between the cationic and anionic polymers [23-25] can be expected to have a net charge, and the sign of charge generally will depend on which of the ...
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Ulvan chitosan polyelectrolyte complexes as matrices for enzyme induced biomimetic mineralization
... Abstract: Polyelectrolyte complexes (PEC) of chitosan and ulvan were fabricated to study ALP mediated formation of apatitic minerals. Scaffolds of the PEC were subjected to alkaline phosphatase (ALP) and ...
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Ternary system (surfactant polyelectrolyte polyelectrolyte) complexes: Determination of the characteristic concentrations
... Polymer–surfactant interactions have attracted a great deal of attention for the benefit that the combination of these molecules can provide in several industrial applications [1–3]. Ionic surfactants can strongly ...
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Design and In Vitro Evaluation of Pentoxifylline- Polyelectrolyte Complex Tablets
... The polyelectrolyte complex was thor- oughly washed with distilled water and was then sepa- rated from water by centrifugation for 30 minute at 10000 ...the polyelectrolyte complex was again submerged in ...
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POLYELECTROLYTE COMPLEX AN OVERVIEW
... study Polyelectrolyte complex. Polyelectrolyte complexes (PECs) represent a special class of polymeric compounds consisting of oppositely charged polyions that can have either cationic or anionic ...
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Evaluation of the role of polyelectrolyte deposition conditions in growth factor release
... units. Polyelectrolyte complexes (PECs) can be formed by depositing polycations and polyanions on a surface in an alternating fashion, resulting in a polyelectrolyte multilayer ...
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Pectin-Chitosan Polyelectrolyte Complex Nanoparticles for Encapsulation and Controlled Release of Nisin
... hydrophobic polyelectrolyte complexes were generated, leading to ...of polyelectrolyte complexes, because the LPE molecules have more carboxylic groups than HPE, fewer amount of LPE were ...
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Effects of aluminum sulfate and polyelectrolyte solutions on the geotechnical properties of organic clay
... hydroxide complexes form due to the reaction between this acidic coagulant and the natural alkalinity of the source water, which usually consists of calcium bicarbonate (Twort et ...and polyelectrolyte ...
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Distinctive electrokinetic behavior of nanoporous silica particles treated with cationic polyelectrolyte
... The amount of cationic polyelectrolyte (titrant) required to reach a zero streaming potential endpoint was found to be very sensitive to salt concentration. Figures 5A and 5B show results obtained, respectively, ...
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Adsorption and Diffusion of Highly Charged Cationic Polyelectrolyte into Silica Gel Particles
... Effects of molecular mass on the adsorption of polyelectrolytes onto cellulose and other porous materials have been shown in various studies. In contrast to what would be expected in the case of non-porous surfaces, many ...
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Growth Factor Release from Polyelectrolyte-Coated Titanium for Implant Applications
... No effect on fibroblast cell count was observed with FGFb-containing coatings. This could indicate that an insufficient amount of FGFb was released to increase cell proliferation. Alternatively, the PE coating and/or ...
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Development of a robust pH-sensitive polyelectrolyte ionomer complex for anticancer nanocarriers
... core composed of PLA blocks and neutralized PEI/P(Asp) complexes by protonation of the charged molecules, resulting in rapid drug release from the loosened core of PIC. These results are consistent with the cell ...
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Advances in polyelectrolyte multilayer nanofilms as tunable drug delivery systems
... Further, polyelectrolyte multilayer nanofilms have been investigated to functionalize biomedical device surfaces for tissue engineering ...within polyelectrolyte multilayer nanofilms may also protect the ...
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Composite silica nanoparticle/polyelectrolyte microcapsules with reduced permeability and enhanced ultrasound sensitivity
... other and finally cover the whole shell, as illustrated by the TEM results, Figure 5c and Figure 5d. The continuous inorganic nanoparticles would compress the capsule in some degree through the shrinkage process, and the ...
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Freeze drying of polyelectrolyte complex nanoparticles: Effect of nanoparticle composition and cryoprotectant selection
... Table 4 Viability MTS assay of Caco-2 cells by MTS assay treated for 72 hours with 4% w/v TRE solution or with reconstituted, CHON-based NPs, previously freeze dried with 4% w/v TRE.. Cy[r] ...
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Determination of the Molar Mass of Surface-Grafted Weak Polyelectrolyte Brushes using Force Spectroscopy
... 2: Typical pulling events observed in the force curves acquired on: a a PDMAEMA comb layer 3.3 nm dry thickness at pH 7 with a single peak event fitted with the worm-like chain WLC model[r] ...
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Protective composite silica/polyelectrolyte shell with enhanced tolerance to harsh acid and alkali conditions
... Supplementary Materials SEM and CLSM images of CaCO3 particles loading with TRITC-dextran; SEM images of CaCO3 particles coated with pure silica NPs; EDX mapping profiles of CaCO3/PAH/PS[r] ...
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