Search Results - "Košovan, Peter"
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Simulations Explain the Swelling Behavior of Hydrogels with Alternating Neutral and Weakly Acidic Blocks
Published in Macromolecules (13-12-2022)“…We used computer simulations to study the equilibrium swelling of weak (pH-responsive) polyelectrolyte hydrogels as a function of pH and salt concentration in…”
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2
Modeling of Polyelectrolyte Gels in Equilibrium with Salt Solutions
Published in Macromolecules (27-10-2015)“…We use hybrid molecular dynamics/Monte Carlo simulations and coarse-grained polymer models to study the swelling of polyelectrolyte gels in salt solutions…”
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3
Both Charge-Regulation and Charge-Patch Distribution Can Drive Adsorption on the Wrong Side of the Isoelectric Point
Published in Journal of the American Chemical Society (02-02-2022)“…The mechanism of protein–polyelectrolyte complexation on the wrong side of the isoelectric point has long puzzled researchers. Two alternative explanations…”
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Electrostatically Cross-Linked Reversible GelsEffects of pH and Ionic Strength
Published in Macromolecules (25-05-2021)“…Mixing of oppositely charged macromolecules can, under certain conditions, lead to the formation of electrostatically cross-linked coacervate gels. In this…”
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The pH-Dependent Swelling of Weak Polyelectrolyte Hydrogels Modeled at Different Levels of Resolution
Published in Macromolecules (26-04-2022)“…The swelling of polyelectrolyte hydrogels has been often explained using simple models derived from the Flory–Rehner model. While these models qualitatively…”
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6
On the efficiency of a hydrogel-based desalination cycle
Published in Desalination (15-07-2017)“…Polyelectrolyte based hydrogels swollen in seawater can release partially desalinated water under compression, and hence can be used as desalination agents. We…”
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Sequestration of Small Ions and Weak Acids and Bases by a Polyelectrolyte Complex Studied by Simulation and Experiment
Published in Macromolecules (13-02-2024)“…Mixing of oppositely charged polyelectrolytes can result in phase separation into a polymer-poor supernatant and a polymer-rich polyelectrolyte complex (PEC)…”
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Modeling of weak polyelectrolyte hydrogels under compression – Implications for water desalination
Published in Desalination (15-06-2021)“…Hydrogels immersed in salty solutions induce partitioning of small ions that can be exploited for water desalination. This partitioning also affects the H+…”
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Coarse-grained simulations of an ionic liquid-based capacitor: I. Density, ion size, and valency effects
Published in Journal of physics. Condensed matter (16-07-2014)“…We introduce a hierarchy of generic coarse-grained models of ionic liquids of increasing complexity. We use them in molecular dynamics simulations to study the…”
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10
Correction to “Grand-Reaction Method for Simulations of Ionization Equilibria Coupled to Ion Partitioning”
Published in Macromolecules (08-02-2022)Get full text
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11
Thermodynamic model for a reversible desalination cycle using weak polyelectrolyte hydrogels
Published in Desalination (15-09-2018)“…The recently proposed use of hydrogels for water desalination is based on the decrease of salt concentration in the gel upon compression. In the first…”
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Coarse-grained simulations of an ionic liquid-based capacitor: II. Asymmetry in ion shape and charge localization
Published in Journal of physics. Condensed matter (16-07-2014)“…In this work, which is a continuation of part I, we introduce a primitive model for an ionic liquid (IL) that can account for the planar shape of cations…”
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13
Local pH and Effective pK of a Polyelectrolyte Chain: Two Names for One Quantity?
Published in ACS macro letters (16-10-2018)“…In recent experiments, the “local pH” near polyelectrolyte chains was determined from the shift in the effective acidity constant of fluorescent pH indicators…”
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14
Anionically Functionalized Glycogen Encapsulates Melittin by Multivalent Interaction
Published in Biomacromolecules (08-08-2022)“…We developed acid-functionalized glycogen conjugates as supramolecular carriers for efficient encapsulation and inhibition of a model cationic peptide…”
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Dynamics in Stimuli-Responsive Poly(N‑isopropylacrylamide) Hydrogel Layers As Revealed by Fluorescence Correlation Spectroscopy
Published in Macromolecules (12-08-2014)“…We employ fluorescence correlation spectroscopy (FCS) to study the translational mobility of molecular tracers in stimuli-responsive grafted…”
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16
Modeling of Ionization and Conformations of Starlike Weak Polyelectrolytes
Published in Macromolecules (24-06-2014)“…The target of this work is to study conformational properties of starlike polyelectrolytes with pH-sensitive (annealed) dissociation in salt-free solutions. We…”
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Interactions of star-like polyelectrolyte micelles with hydrophobic counterions
Published in Journal of colloid and interface science (15-06-2019)“…[Display omitted] Hydrophobicity of a counterion has a profound effect on the interaction with polyelectrolytes similar to that of multivalency. Specifically,…”
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Role of pKA in Charge Regulation and Conformation of Various Peptide Sequences
Published in Polymers (09-01-2021)“…Peptides containing amino acids with ionisable side chains represent a typical example of weak ampholytes, that is, molecules with multiple titratable acid and…”
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Polymers in focus: fluorescence correlation spectroscopy
Published in Colloid and polymer science (01-10-2014)“…Fluorescence correlation spectroscopy has been increasingly used in polymer science. In the present perspective, the principles of the method are briefly…”
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Correction to Modeling of Polyelectrolyte Gels in Equilibrium with Salt Solutions
Published in Macromolecules (22-03-2016)Get full text
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