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Nanoscale Contact Mechanics between Two Grafted ...

Nanoscale Contact Mechanics between Two Grafted ...

Request PDF | Nanoscale Contact Mechanics between Two Grafted Polyelectrolyte Surfaces | The adhesive and frictional behavior of end-grafted …
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Cationic polyelectrolytes: A new look at their possible ...

Cationic polyelectrolytes: A new look at their possible ...

Modulation of locomotor activity of polymorphonuclear veils by cationic substances and cationic lysosomal fractions from human neutrophils.Inflammation 9:375–387. Google Scholar 35. De Vries, A., J. Salgo, Y. Mathot, A. Nevo, and E. Katchalski. 1955. The influence of polyamino acids on phagocytosis in vitro.Arch. Int.
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Injectable Tripeptide/Polymer Nanoparticles Supramolecular ...

Injectable Tripeptide/Polymer Nanoparticles Supramolecular ...

A seed layer composed of a polyelectrolyte covalently modified by anchoring hydrogelator peptides constitutes the top of the multilayer. This layer is …
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Temperature responsive polyelectrolyte complexes : Bio ...

Temperature responsive polyelectrolyte complexes : Bio ...

In this thesis, we developed bio-inspired temperature responsive polyelectrolytes that can be applied as underwater adhesive, and may serve as biomedical adhesive as well.

A thorough understanding of natural underwater adhesives is needed for bio-mimicry and, therefore, we reviewed the adhesion mechanisms by sandcastle worms and mussels ...

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Preparation and characterization of polyelectrolyte ...

Preparation and characterization of polyelectrolyte ...

A polyelectrolyte multilayer (PEM) coating was fabricated via the alternate deposition of collagen (Col) and poly (γ-glutamic acid) (γ-PGA) onto 316L stainless steel with chitosan as a barrier in the middle layer using spin-assisted layer-by-layer assembly. ... Chitosan (CS) is a natural cationic polysaccharide composed of poly-β (1–4)-D ...
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AFM adhesion imaging for the comparison of polyelectrolyte ...

AFM adhesion imaging for the comparison of polyelectrolyte ...

Using adhesion-imaging AFM, the topog- bed, forming a polyelectrolyte multilayer (PEM) on the fibre raphy and adhesion of the treated surfaces were examined by surface.1,2 Still another possibility is to use polyelectrolyte complexes approaching and retracting a SiO2 probe with a 3 nm curvature (PECs) preformed by mixing two polyelectrolytes ...
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Inherently antimicrobial quaternary amine hydrogel wound ...

Inherently antimicrobial quaternary amine hydrogel wound ...

A composition and method for treating a wound with an inherently antimicrobial dressing. The dressing is a hydrogel containing from about 15 to 95 percent, and preferably from about 61 to 90 percent, by weight of a cationic quaternary amine acrylate polymer prepared by the polymerization of acryloyloxyethyl(or propyl)-trialkyl(or aryl)-substituted ammonium salts or …
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Polyelectrolyte in Electric Field: Disparate ...

Polyelectrolyte in Electric Field: Disparate ...

easingly used in fabrication of hydrogels (e.g., based on aminopolysaccharide chitosan) to guide the emergence of complex and anisotropic structure; however, how an imposed electric field affects the polymer chain conformation and orientation during the self-assembly process is not understood. Here, we applied nonequilibrium all-atom …
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Cationic polyelectrolytes | SpringerLink

Cationic polyelectrolytes | SpringerLink

The aminolysis-hydrolysis of the nitrile groups of PAN with asymmetrical diamines as H2N-(CH2)m-NR2 was investigatied by IR spectroscopy (qualitative and quantitative) and elemental analyses. IR quantitative spectroscopy is an adequately proved method for investigation of the extent of transformation. The amine reactivity depends on the distance between the two amine …
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Polyelectrolyte-based physical adhesive hydrogels with ...

Polyelectrolyte-based physical adhesive hydrogels with ...

Physically crosslinked hydrogels were synthesized by copolymerization of acrylamide and acrylic acid monomers in the presence of cationic polyelectrolyte polydimethyldiallylammonium chloride. The fully physically crosslinked hydrogel showed good mechanical properties and good adhesion with a variety of substrates.
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Discriminatory Bio-Adhesion Over Nano-Patterned Polymer ...

Discriminatory Bio-Adhesion Over Nano-Patterned Polymer ...

The interaction of these brushes with two different cationic species PLL and lysozyme were studied. The thesis documents rapid and complete brush displacement by PLL, highlighting a major limitation of using such brushes in some applications. Also unanticipated, lysozyme, a small cationic protein, was found to adhere to the brushes in
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China MSDS Anionic Polyelectrolyte Polyacrylamide Polymer ...

China MSDS Anionic Polyelectrolyte Polyacrylamide Polymer ...

25kg net each per bag. Origin. China. HS Code.. Product Description. Premium PAM for oilfield drilling. Premium PAM for oilfield drilling as a functional additive,either to control wellbore shales or to extend bentonite clay in a low-solids a shale control mud,PHPA is used to seal microfractures and coat the shale surfaces ...
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2,3,6-tricarboxylate cellulose as a fully ... - NCSU

2,3,6-tricarboxylate cellulose as a fully ... - NCSU

Full Article. 2,3,6-Tricarboxylate Cellulose as a Fully Biodegradable Flocculant: Efficient Synthesis and Flocculation Performance. Kexin Chen, a Weijun Lv, b, * Wei Chen, a Yifeng Wang, c Yong Zhang, a, * Xiumei Zhang, a and Juming Yao a Cellulose-based flocculants have shown excellent performance for wastewater flocculation, being low-cost and eco-friendly.
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Polyelectrolyte (CATIONIC) - Raindrops

Polyelectrolyte (CATIONIC) - Raindrops

Dec 06, 2018 · POLYELECTROLYTE-C is Cationic polyacrylamide is a kind of high molecular polymeric electrolyte with water-solubility. It has active groups with rather strong positive charge and an effective function of floe collation. It is easily soluble in water and not soluble in some organic solvent like ethanol and acetone.
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Polyelectrolyte Complex Based Interfacial Drug Delivery ...

Polyelectrolyte Complex Based Interfacial Drug Delivery ...

An improved interfacial drug delivery system (DDS) based on polyelectrolyte complex (PEC) coatings with controlled drug loading and improved release performance was elaborated. The cationic homopolypeptide poly(l-lysine) (PLL) was complexed with a mixture of two cellulose sulfates (CS) of low and hi …
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(PDF) Strength-enhancing of Cationic Starch on Recycled ...

(PDF) Strength-enhancing of Cationic Starch on Recycled ...

The effects of cationic starch wet end addition on the properties of clay filled papers. Svensk Papperstidn 87 (12),. Lundstrom, H. L., Johansson, E., and Wagberg, L., (2010). Polyelectrolyte multilayers from cationic and anionic starch: Influence of charge density and salt concentration on the properties of adsorbed layers.
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Gel-like ionic complexes for antimicrobial, hemostatic and ...

Gel-like ionic complexes for antimicrobial, hemostatic and ...

Mar 29, 2019 · Moreover, the gel-like complex was applied onto various substrates as an adhesive in comparison with commercial superglue gel, revealing the robust, substrate-independent, water-based, repeatable and removable adhesive property of the ionic complex glue.
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Polyelectrolyte-based physical adhesive hydrogels with ...

Polyelectrolyte-based physical adhesive hydrogels with ...

Abstract. Physically crosslinked hydrogels were synthesized by copolymerization of acrylamide and acrylic acid monomers in the presence of cationic polyelectrolyte polydimethyldiallylammonium chloride. The fully physically crosslinked hydrogel showed good mechanical properties and good adhesion with a variety of substrates.
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Optimal use of the cationic polyelectrolyte poly-L-lysine ...

Optimal use of the cationic polyelectrolyte poly-L-lysine ...

Optimal use of the cationic polyelectrolyte poly-L-lysine in the preparation of cell monolayers for diagnostic cytopathology. K C Watts and O Husain. ... This may not be the complete list of references from this article. Sherbet GV, Lakshimi MS, Rao KV. Characterisation of ionogenic groups and estimation of the net negative electric charge on ...
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Polyelectrolyte - an overview | ScienceDirect Topics

Polyelectrolyte - an overview | ScienceDirect Topics

Blue symbols are for an adsorbed cationic polyelectrolyte, chitosan, in an aqueous solution at pH 3.5. 198 The black symbols and corresponding gray band are from the PMMA-b-PSGMA charged brushes. Shear velocities for all data are in the range 250–500 nm s −1 .
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Cationic Polyelectrolyte - Chemtex Speciality Limited

Cationic Polyelectrolyte - Chemtex Speciality Limited

It is appreciated for unmatched features like exceptional floc formation, superior cleaning, quick settling, and improvised filter clarity, high filtration capacity, and full miscibility in water in filter cake washing. Cationic Polyelectrolyte is utilized for the following solid-liquid separation processes: Belt filter, centrieased production rate, cake …
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Temperature responsive polyelectrolyte complexes: Bio ...

Temperature responsive polyelectrolyte complexes: Bio ...

For wound closure, adhesives provide many advantages over the use of sutures. However, adhesives are not yet common practice in internal medicine, due to limited adhesive properties in wet conditions, Chapter this thesis, we developed bio-inspired temperature responsive polyelectrolytes that can be applied as underwater adhesive, and may serve as biomedical …
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Polyelectrolyte complexation between cationic and anionic ...

Polyelectrolyte complexation between cationic and anionic ...

Apr 01, 2014 · Polyelectrolyte complexation between cationic and anionic polyelectrolytes with complementary polymer-bound reactive groups of amine and acetoacetate: effect of mono- and divalent salts. Mohammad A. Jafar Mazumder 1 Iranian Polymer Journal volume 23, pages 445–455 (2014)Cite this article
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Temperature-responsive polyelectrolyte complexes for bio ...

Temperature-responsive polyelectrolyte complexes for bio ...

Dec 05, 2020 · Temperature responsive polyelectrolyte complexes (TERPOCs) function as wet adhesives. • Viscoelastic properties of TERPOCs can be tuned by ionic strength and water content. • Hydrophobic moieties are beneficial for underwater adhesive performance. • A hydrophobic content that is too large results in water release and unstable hydrogels.
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Polyelectrolyte-based physical adhesive hydrogels with ...

Polyelectrolyte-based physical adhesive hydrogels with ...

Polyelectrolyte-based physical adhesive hydrogels with excellent mechanical properties for biomedical applications† Wenxiang Li , a Ruyan Feng , b Rensheng Wang , a Dan Li , b Wenwen Jiang , a Hanzhou Liu , a Zhenzhong Guo , * c Michael J. Serpe d and Liang Hu * a
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Cationic Polyelectrolyte Nanocapsules of Moxifloxacin for ...

Cationic Polyelectrolyte Nanocapsules of Moxifloxacin for ...

Jun 28, 2021 · Microbial keratitis (MK) is a vision-threatening disease and the fourth leading cause of blindness worldwide. In this work, we aim to develop moxifloxacin (MXN)-loaded chitosan-based cationic mucoadhesive polyelectrolyte ocapsules (PENs) for the effective treatment of MK. PENs were formulated by polyelectrolyte complex coacervation method and …
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Polyelectrolyte - an overview | ScienceDirect Topics

Polyelectrolyte - an overview | ScienceDirect Topics

Polyelectrolytes that are applied practically as flocculants are mainly water-soluble polyacrylamides, polyphosphates and modified natural polymers – gelatines, chitosan, and carragee, as well as starch and cellulose derivatives. Polyelectrolytes are classified as cationic, anionic, and nonionic according to the nature of the functional groups along the …
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Nanomaterials | Free Full-Text | Polyelectrolyte Complex ...

Nanomaterials | Free Full-Text | Polyelectrolyte Complex ...

Mar 22, 2016 · An improved interfacial drug delivery system (DDS) based on polyelectrolyte complex (PEC) coatings with controlled drug loading and improved release performance was elaborated. The cationic homopolypeptide poly(l-lysine) (PLL) was complexed with a mixture of two cellulose sulfates (CS) of low and high degree of substitution, so that the CS and PLL …
Get Price