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SELF-ASSEMBLY OF TRIBLOCK COPOLYMERS IN AQUEOUS SOLUTION
(Sociedad Chilena de Química, 2008-06)
The aggregation of PE4VP-b-PS-b-PE4VP block copolymers was studied in aqueous solution. Triblock copolymers P4VP-b-PS-b-P4VP were synthesized
by sequential anionic polymerization of poly(styrene) and poly(4-vinylpirydine) ...
Quaternized chitosan mediated assembly of gold nanoparticles multilayers
(Pergamon-Elsevier Science Ltd., 2014-12)
Self-assembled multilayers of quaternized chitosan (QCHI) and gold nanoparticles (AuNPs) were built up on quartz and gold substrates. To evaluate the effect of the surface coverage of AuNPs on the structural, optical and ...
Adsorption of chromium (VI) ion from aqueous solution by succinylated mercerized cellulose functionalized with quaternary ammonium groups
(Elsevier Sci LtdOxfordInglaterra, 2009)
Synthesis and characterization of water-soluble dendronized chitosan using newkome-type dendrons
(ACS, 2014-09)
With increasing emphasis on environmental care 7 and use of renewable resources, simple and effective dendroniza- 8 tion processes were performed to obtain chitosan derivatives. We 9 present different alternatives for ...
The addition of a quaternary group in biopolymeric material increases the adsorptive capacity of Acid Blue 25 textile dye
(2019-08-01)
The quaternization of chitosan molecules creates materials with high adsorptive capacity towards textile dyes, which renders them capable of rapidly removing such dyes from a solution. In this study, a novel material was ...
N-(2-hydroxy)-propyl-3-trimethylammonium, O-palmitoyl chitosan: Synthesis, physicochemical and biological properties
(Elsevier B.V., 2021-05-01)
Two samples of N-(2-hydroxy)-propyl-3-trimethylammonium, O-palmitoyl chitosan (DPCat) with different av-erage degrees of quaternization named as DPCat35 (DQ = 35%) and DPCat80 (DQ = 80%), were successfully syn-thesized by ...
Structural aspects of polyanion and hydrophobically modified polycation multilayers on hydrophilic or hydrophobic surfaces
(ROYAL SOC CHEMISTRYCAMBRIDGE, 2012)
Multilayer films of carboxymethylcellulose (CMC), a polyanion, and bromide salts of poly(4-vinylpyridine) quaternized with linear aliphatic chains of 2 (ethyl) and 5 (pentyl) carbon atoms, coded as QPVP-C2 and QPVP-C5, ...
Lysozyme binding to poly(4-vinyl-N-alkylpyridinium bromide)
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2009)
The adsorption behavior of polycations at ionic strengths (1) ranging from 0.001 to 0.1 onto silicon wafers was studied by means of ellipsometry, contact angle measurements and atomic force microscopy (AFM). Polycations ...
Protein Adsorption onto Polyelectrolyte Layers: Effects of Protein Hydrophobicity and Charge Anisotropy
(AMER CHEMICAL SOC, 2010)
Ellipsometry was used to investigate the influence of ionic strength (I) and pH on the adsorption of bovine serum albumin (BSA) or beta-lactoglobulin (BLG) onto preabsorbed layers of two polycations: poly(diallyldimethylammonium ...
Novel 2-(substituted benzyl)quinuclidines inhibit human α7 and α4β2 nicotinic receptors by different mechanisms
(Elsevier, 2013-08)
This work presents the design and synthesis of a series of novel 2-benzylquinuclidine derivatives, comprising 12 methiodide and 11 hydrochloride salts, and their structural and pharmacological characterization at the human ...