Results 141 to 150 of about 10,014 (197)

Ordered Polyelectrolyte Multilayers: Unidirectional FRET Cascade in Nanocompartmentalized Polyelectrolyte Multilayers

ChemPhysChem, 2009
AbstractMultifunctional polyelectrolyte (or layer‐by‐layer, LbL) multilayers consisting of a set of nanocompartments separated by impermeable ultrathin barriers, whereby the thickness of the compartments is tuned in the range 1–10 nm, are synthesized.
Sébastien, Peralta, Jean-Louis, Habib-Jiwan, Alain M, Jonas   +2 more
openaire   +2 more sources

Sprayed Polyelectrolyte Multilayers

Langmuir, 2000
Polyelectrolyte multilayers deposited by sequential spraying of poly(styrenesulfonate) and poly(diallyldimethylammonium) solutions are described. A highly uniform thin film is rapidly obtained over a large area. The morphology, uniformity, and chemical composition of sprayed multilayers, as well as the selective membrane properties, are found to be ...
Joseph B. Schlenoff, Stephan T. Dubas, Tarek Farhat   +2 more
openaire   +1 more source

Responsive polyelectrolyte multilayers

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2007
In this review we present selected recent developments of responsive multilayers formed by layer-by-layer assembly of oppositely charged polymers, with particular emphasis on the preparation of temperature- and pH-sensitive systems. We discuss the influence of the architecture and of the nature of the polyelectrolytes used on the responsive behavior of
Glinel, K., Déjugnat, C., Prevot, M., Schöler, B., Schönhoff, M., Klitzing, R.   +5 more
openaire   +2 more sources

Nanoconfined Polyelectrolyte Multilayers

Advanced Materials, 2006
Lateral nanometer-scale control over the growth of polyelectrolyte (layer-by-layer) multilayers is demonstrated down to 40 nm, which is well below the natural size of the macromolecules in solution. Because of confinement upon adsorption, the molecules change conformation as compared with the usual, macroscopic case (see Figure). This work opens direct
A. Pallandre, A. Moussa, B. Nysten, A. M. Jonas   +3 more
openaire   +1 more source

Polyelectrolyte Multilayers on Weak Polyelectrolyte Brushes

Macromolecular Rapid Communications, 2003
AbstractThe interaction of surface‐attached weak polyelectrolyte brushes, grown directly from the surface of a solid substrate by surface‐initiated polymerization, with weak polyelectrolyte molecules in solution is studied. In addition, the formation of PEL multilayers onto such brush substrates is investigated. A strong template effect is observed and
Zhang, Haining, Rühe, Jürgen
openaire   +2 more sources

Combinatorial Polyelectrolyte Multilayer Film Fabrication

Journal of Nanoscience and Nanotechnology, 2009
A combinatorial strategy for the fabrication of a library of polyelectrolyte multilayer films is presented in this paper. This innovative approach involves the parallel formation of polyelectrolyte multilayer films in the individual wells of polystyrene microtitre plates under various deposition conditions.
Matthew M, Coulter, David S, Dos Santos, Richard W, Loo, M Cynthia, Goh   +3 more
openaire   +2 more sources

Ion Transport Through Polyelectrolyte Multilayers

Macromolecular Rapid Communications, 2013
Polyelectrolyte multilayer (PEM) films and capsules loaded with ion‐sensitive fluorophores can be used as ion‐sensors for many applications including measurements of intracellular ion concentration. Previous studies have shown the influence of the PEM films/shells on the specific response of encapsulated ion‐sensitive fluorophores.
Susana, Carregal-Romero, Philipp, Rinklin, Susanne, Schulze, Martin, Schäfer, Andrea, Ott, Dominik, Hühn, Xiang, Yu, Bernhard, Wolfrum, Karl-Michael, Weitzel, Wolfgang J, Parak   +9 more
openaire   +2 more sources

Cyto-mechanoresponsive Polyelectrolyte Multilayer Films

Journal of the American Chemical Society, 2011
Cell adhesion processes take place through mechanotransduction mechanisms where stretching of proteins results in biological responses. In this work, we present the first cyto-mechanoresponsive surface that mimics such behavior by becoming cell-adhesive through exhibition of arginine-glycine-aspartic acid (RGD) adhesion peptides under stretching.
Johanna, Davila, Armelle, Chassepot, Johan, Longo, Fouzia, Boulmedais, Andreas, Reisch, Benoît, Frisch, Florent, Meyer, Jean-Claude, Voegel, Philippe J, Mésini, Bernard, Senger, Marie-Hélène, Metz-Boutigue, Joseph, Hemmerlé, Philippe, Lavalle, Pierre, Schaaf, Loïc, Jierry   +14 more
openaire   +2 more sources

Monocyte activation on polyelectrolyte multilayers

Journal of Biomaterials Science, Polymer Edition, 2005
The adherence and activation of primary human monocytes was investigated on a polyelectrolyte multilayer film containing hyaluronic acid (HA) and poly-L-lysine (PLL). The sequential layer-by-layer deposition of the multilayer film was characterized by surface plasmon resonance.
Jason J, Hwang, Sandra, Jelacic, Newton T, Samuel, Ronald V, Maier, Charles T, Campbell, David G, Castner, Allan S, Hoffman, Patrick S, Stayton   +7 more
openaire   +2 more sources

Polyelectrolyte multilayer capsule permeability control

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2002
[object Object]
Antipov Alexei A, Sukhorukov Gleb B, Leporatti Stefano, Radtchenko Igor L, Donath Edwin, Möhwald Helmuth   +5 more
openaire   +5 more sources