Articles with "polyelectrolyte" as a keyword



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Reversibly Transforming a Highly Swollen Polyelectrolyte Hydrogel to an Extremely Tough One and its Application as a Tubular Grasper.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.202005171

Abstract: Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) and its copolymer hydrogels are typical polyelectrolyte gels with extremely high swelling capacity that are widely used in industry. It's common to consider these hydrogels as weak materials that are difficult to toughen.… read more here.

Keywords: polyelectrolyte; tubular grasper; reversibly transforming; transforming highly ... See more keywords
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DNA translocation through polyelectrolyte‐modified nanopores: An analytical approximation

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Published in 2018 at "ELECTROPHORESIS"

DOI: 10.1002/elps.201800022

Abstract: An analytical model for the electrophoretic speed of DNA translocating through nanopore functionalized with polyelectrolyte (PE) brush is developed for the first time. The electrophoretic speed depends on DNA surface potential, applied electric field, viscosity,… read more here.

Keywords: polyelectrolyte; pel interface; liquid; dna ... See more keywords
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Correlating Ionic Conductivity and Microstructure in Polyelectrolyte Hydrogels for Bioelectronic Devices.

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Published in 2022 at "Macromolecular rapid communications"

DOI: 10.1002/marc.202100687

Abstract: Hydrogels have become the material of choice in bioelectronic devices because their high-water content leads to efficient ion transport and a conformal interface with biological tissue. While the morphology of hydrogels has been thoroughly studied,… read more here.

Keywords: polyelectrolyte; conductivity; bioelectronic devices; ionic conductivity ... See more keywords
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The critical Transition from Soluble Complexes to Colloidal Aggregates of Polyelectrolyte Complexes at Non-stoichiometric Charge Ratios.

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Published in 2022 at "Macromolecular rapid communications"

DOI: 10.1002/marc.202100880

Abstract: The transition from soluble to colloidal polyelectrolyte complex normally occurs at a critical non-stoichiometric charge ratio. Here, we demonstrated that the conventional batch mixing produces heterogeneous binding and complexation, which could easily mask this soluble-colloidal… read more here.

Keywords: charge ratios; charge; sol col; transition ... See more keywords
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Chemically modified cellulose nanocrystals as polyanion for preparation of polyelectrolyte complex

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Published in 2019 at "Cellulose"

DOI: 10.1007/s10570-018-2223-3

Abstract: Bacterial cellulose nanocrystals (BCNCs) have hydrophilic surfaces due to hydroxyl groups but are water-insoluble. The carboxymethylation improves the solubility of cellulose in polar media through the insertion of carboxymethyl groups. This study aims to evaluate… read more here.

Keywords: polyanion; modified cellulose; nanocrystals polyanion; polyelectrolyte ... See more keywords
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Control of the phase formation process in solutions of anionic polyelectrolyte—cationic surfactant complexes in a microfluidic channel

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Published in 2020 at "Russian Chemical Bulletin"

DOI: 10.1007/s11172-020-2920-6

Abstract: The process of phase formation in solutions of polyacrylic acid and cetyltrimethylammonium bromide was studied in microfluidic channels with a characteristic size of 100–200 µm. The system of convection—diffusion—reaction equations was solved to develop an… read more here.

Keywords: control phase; formation; process; surfactant complexes ... See more keywords
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Charge-switchable, anti-oxidative molecule tuned polyelectrolyte multilayered films: Amplified polyelectrolyte diffusivity and accelerated diabetes wound healing

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Published in 2021 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2021.129521

Abstract: Abstract The local oxidizing microenvironment and bacterial infection, as crucial internal and external factors that hinder the healing of diabetic wounds, are two main issues to be addressed in the design of novel wound dressing… read more here.

Keywords: wound healing; bhpb; diffusivity; molecule ... See more keywords
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Weak polyelectrolyte-based multilayers via layer-by-layer assembly: Approaches, properties, and applications.

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Published in 2020 at "Advances in colloid and interface science"

DOI: 10.1016/j.cis.2020.102200

Abstract: Layer-by-layer (LbL) assembly is a nanoscale technique with great versatility, simplicity and molecular-level processing of various nanoscopic materials. Weak polyelectrolytes have been used as major building blocks for LbL assembly providing a fundamental and versatile… read more here.

Keywords: layer layer; weak polyelectrolyte; based multilayers; polyelectrolyte ... See more keywords
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Inkjet printed polyelectrolyte patterns for analyte separation on inherently porous microfluidic analytical designs

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Published in 2017 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2017.03.001

Abstract: Abstract Analytical devices made of inherently porous material can provide platforms for sensor applications in point-of-care medical diagnostics and environmental monitoring. However, separation and concentration of analytes on such devices has received limited attention. Neither… read more here.

Keywords: polyelectrolyte patterns; inkjet printed; separation; inherently porous ... See more keywords
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The reduction mechanism of p-cyanophenylviologen in PVA-borax gel polyelectrolyte-based bicolor electrochromic devices

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Published in 2018 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2018.09.137

Abstract: Abstract Polyelectrolyte-based electrochromic devices containing p -cyanophenylviologen and PVA-borax gel provide two different well-defined colored states (green and red). In this work, the bicolor electrochromic gel was characterized by in situ electron spin resonance (ESR)/ultraviolet–visible–near… read more here.

Keywords: electrochromic devices; pva borax; polyelectrolyte; gel ... See more keywords
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Self-healable hyaluronic acid/chitosan polyelectrolyte complex hydrogels and multilayers

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Published in 2019 at "European Polymer Journal"

DOI: 10.1016/j.eurpolymj.2019.109268

Abstract: Abstract In this work, polyelectrolyte complexes (PEC) were obtained in form of nanometric polyelectrolyte multilayers (PEMs) and macroscopic hydrogels by electrostatic interactions between two natural polysaccharides: hyaluronic acid (HA) and chitosan (CHI). PEM was developed… read more here.

Keywords: healable hyaluronic; self healable; acid chitosan; hydrogels multilayers ... See more keywords