Ion-exchange membranes prepared using layer-by-layer polyelectrolyte deposition

Polyelectrolyte-quantum dot multilayer films fabricated by combined layer-by-layer assembly and Langmuir-Schaefer deposition.

Stable multilayer thin films, assembled by a combination of layer-by-layer processing of polyelectrolytes and inorganic quantum dot monolayers prepared using the Langmuir-Schaefer deposition procedure, have been examined. Film formation and structure are confirmed using UV-vis absorption measurements and fluorescence spectroscopy. Growth is shown to be linear over several polyelectrolyte-quantu...

Electroanalytical applications of nanocomposites from conducting polymers and metallic nanoparticles prepared by layer-by-layer deposition*

Layer-by-layer (LbL) deposition is a convenient technique for the formation of ultra thin nanocomposite layers containing metallic nanoparticles (NPs) and conducting polymers (CPs). The advantages of this approach for producing composite layers suitable for electroanalytical applications are discussed. Examples of electroanalytical applications of LbL-deposited composites are presented. Composi...

Mixed mosaic membranes prepared by layer-by-layer assembly for ionic separations.

Charge mosaic membranes, which possess distinct cationic and anionic domains that traverse the membrane thickness, are capable of selectively separating dissolved salts from similarly sized neutral solutes. Here, the generation of charge mosaic membranes using facile layer-by-layer assembly methodologies is reported. Polymeric nanotubes with pore walls lined by positively charged polyethylenimi...

Size-controlled polyelectrolyte nanocapsules via layer-by-layer self-assembly

Nanomaterials have found many important applications in biomedical, pharmaceutical, electronic, and molecular diagnostic fields. The recent introduction of electrostatic layer-by-layer (LbL) self-assembly technique enables the design and development of polymer/polymer and polymer/nanoparticle complexes at nanometer scale [1]. The LbL technique is based on alternate adsorption of oppositely char...

Infrared Analysis of Electrostatic Layer-By-Layer Polymer Membranes Having Characteristics of Heavy Metal Ion Desalination