Results 41 to 50 of about 22,858 (148)

Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution

Journal of Chemistry, 2013
We present a general description of conductivity behavior of highly charged strong polyelectrolytes in dilute aqueous solutions taking into account the translational dielectric friction on the moving polyions modeled as chains of charged spheres ...
Anis Ghazouani, Sondes Boughammoura, Jalel M'Halla   +2 more
doaj   +1 more source

Coating Effect on the ¹H—NMR Relaxation Properties of Iron Oxide Magnetic Nanoparticles

Nanomaterials, 2020
We present a 1H Nuclear Magnetic Resonance (NMR) relaxometry experimental investigation of two series of magnetic nanoparticles, constituted of a maghemite core with a mean diameter dTEM = 17 ± 2.5 nm and 8 ± 0.4 nm, respectively, and coated with four ...
Francesca Brero, Martina Basini, Matteo Avolio, Francesco Orsini, Paolo Arosio, Claudio Sangregorio, Claudia Innocenti, Andrea Guerrini, Joanna Boucard, Eléna Ishow, Marc Lecouvey, Jérome Fresnais, Lenaic Lartigue, Alessandro Lascialfari   +13 more
doaj   +1 more source

Nanodispersions of Polyelectrolytes Based on Humic Substances: Isolation, Physico-Chemical Characterization and Evaluation of Biological Activity

Pharmaceutics, 2021
Natural polyelectrolytes, including in the form of complexes with colloidal particles, are increasingly used in pharmacy due to the possibility of regulated attachment of medicinal substances and their targeted delivery to the target organ.
Elena V. Uspenskaya, Anton V. Syroeshkin, Tatiana V. Pleteneva, Ilaha V. Kazimova, Tatiana V. Grebennikova, Irina T. Fedyakina, Varvara V. Lebedeva, Oleg E. Latyshev, Olesia V. Eliseeva, Viktor F. Larichev, Timur M. Garaev, Tatiana V. Maximova, Mariya A. Morozova, Pham My Hanh   +13 more
doaj   +1 more source

Anionic Polyelectrolytes for Batteries

, 2022
Anionic Polyelectrolytes for ...
Gongyue Huang (13073922), Haijin Zhu (13072281)   +1 more
core   +1 more source

Transient Coatings from Nanoparticles Achieving Broad-Spectrum and High Antimicrobial Performance

Pharmaceuticals, 2023
Cationic and hydrophilic coatings based on casting and drying water dispersions of two different nanoparticles (NPs) onto glass are here described and evaluated for antimicrobial activity.
Rachel Zaia, Giovanna M. Quinto, Livia C. S. Camargo, Rodrigo T. Ribeiro, Ana M. Carmona-Ribeiro   +4 more
doaj   +1 more source

SOLUTION AND GELLING PROPERTIES OF POLYSACCHARIDE POLYELECTROLYTES

, 1991
Attention is focussed on the special class of polysaccharide polyelectrolytes belonging to the family of the microbial polysaccharides. But a few exceptions, these are high molecular weight water- soluble polycarboxylates with complex, regular structures.
DENTINI, Mariella, COVIELLO, Tommasina, CRESCENZI, Vittorio   +2 more
core   +1 more source

Diffusive dynamics and electrochemical regulation of weak polyelectrolytes across liquid interfaces

Physical Review Research
We propose a framework to study the spatiotemporal evolution of liquid-liquid phase separation of weak polyelectrolytes in ionic solutions. Unlike strong polyelectrolytes, which carry a fixed charge, the charge state of weak polyelectrolytes is modulated
Giulia L Celora, Ralf Blossey, Andreas Münch, Barbara Wagner   +3 more
doaj   +1 more source

Improving the Efficiency of a Coagulation-Flocculation Wastewater Treatment of the Semiconductor Industry through Zeta Potential Measurements

Journal of Chemistry, 2014
Efficiency of coagulation-flocculation process used for semiconductor wastewater treatment was improved by selecting suitable conditions (pH, polyelectrolyte type, and concentration) through zeta potential measurements.
Eduardo Alberto López-Maldonado, Mercedes Teresita Oropeza-Guzmán, Adrián Ochoa-Terán   +2 more
doaj   +1 more source

Amphiphilic QP(DMAEMA-co-LMA)-b-POEGMA Random-Block Terpolymers as Nanocarriers for Insulin

Biomedicines, 2020
We report on the utilization of the amphiphilic poly[quaternized (2-(N,N-dimethylamino) ethyl methacrylate)]-co-(lauryl methacrylate))-b-poly[(oligo ethylene glycol) methyl ether methacrylate] QP(DMAEMA-co-LMA)-b-POEGMA cationic diblock terpolymer ...
Martha Kafetzi, Stergios Pispas, Xiaoyan Bao, Ping Yao   +3 more
doaj   +1 more source

Polyelectrolytes: Research, Development, and Applications

CHIMIA, 2001
A brief overview is provided of the principal research and development activities of the Laboratory of Polyelectrolytes and BioMacromolecules at the Swiss Federal Institute of Technology.
David Hunkeler, Christine Wandrey
doaj