1383-5866/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.seppur.2012.08.002 ⇑ Corresponding author. Tel./fax: +81 78 803 6180. E-mail address: [email protected] (H. Matsu To reduce membrane fouling of reverse osmosis (RO) membrane, we adopted layer-by-layer (LbL) assembly. LbL assembly has received attention as a means of preparing ultrathin layers of composite membrane...

We report on a glucose oxidase (GOx)/polyelectrolyte (PE)/gold nanoparticle (AuNP) multilayer films that can be utilized as efficient glucose biosensors by layer-by-layer self-assembly method. Electrochemical impedance spectroscopy (EIS) and UV-visible spectroscopy were adopted to monitor the regular growth of the multilayer films. The role of gold nanoparticles integrated in the multilayer fil...

In our work we have focused on the incorporation of Prussian Blue nanoparticles (NP) into polyelectrolyte multilayer films (PEM). The main goal of presented studies was to obtain polymer/nanoparticles films with controlled electroactive properties. The amount and ordering of deposited nanoparticles depended on the adsorption conditions of the underlying polymer anchoring layer. In the case of f...

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...

The effect of the strength of electrostatic and short-range interactions on the multilayer assembly of oppositely charged polyelectrolytes at a charged substrate was studied by molecular dynamics simulations. The multilayer buildup was achieved through sequential adsorption of charged polymers in a layer-by-layer fashion from dilute polyelectrolyte solutions. The strong electrostatic attraction...

A novel solid-state polymer electrolyte was constructed using layer-by-layer (LbL) polyelectrolyte assembly of linear poly(ethylenimine) (LPEI) and poly(acrylic acid) (PAA), combined with a plasticization step using oligoethylene glycol dicarboxylic acid (OEGDA). This composite film exhibits a relatively high ionic conductivity of 9.5 x 10(-5) S/cm at 25 degrees C and 22% relative humidity. Det...

A polymer-based gene delivery system, denoted as “DNA/polycation/polyanion”, is designed based on the concept of polyelectrolyte multilayer fabrication by the layer-by-layer polyelectrolyte self-assembly technology. The comparisons of the physicochemical properties between ‘core’ DNA/branched polyethylenimine (PEI) and DNA/chitosan complexes suggest that DNA/PEI complexes form as colloidally st...

The formation of polyelectrolyte multilayers (PEMs) is investigated using a silicon-on-insulator based thin film resistor which is sensitive to variations of the surface potential. The buildup of the PEMs at the silicon oxide surface of the device can be observed in real time as defined potential shifts. The influence of polymer charge density is studied using the strong polyanion poly(styrene ...