Results 191 to 200 of about 4,374 (220)
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Polyelectrolyte Multilayers for Tunable Release of Antibiotics
Biomacromolecules, 2008Polyelectrolyte multilayers incorporating gentamicin were fabricated using layer-by-layer deposition. The multilayers could be precisely tuned with regard to dosage, and release rate under aqueous physiological conditions could be controlled. The films were demonstrated efficacious against Staphylococcus aureus and nontoxic toward murine osteoblasts ...
Helen F, Chuang +2 more
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Polyelectrolyte multilayer capsule permeability control
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2002[object Object]
Antipov Alexei A +5 more
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Roughness and Salt Annealing in a Polyelectrolyte Multilayer
Langmuir, 2013The surface roughness of polyelectrolyte multilayers made from poly(diallyldimethylammonium chloride), PDADMAC, and poly(styrene sulfonate), PSS, was measured as a function of film deposition conditions. For dry multilayers, the significant roughness which builds up for thicker films is much more apparent for multilayers terminated with PSS ...
Ramy A, Ghostine +3 more
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Polyelectrolyte multilayered assemblies in biomedical technologies
Chemical Society Reviews, 2014Layer-by-layer (LbL) was first introduced as a surface modification technique based on the sequential spontaneous adsorption of at least two distinct materials onto planar substrates. In the last two decades, this technique has been expanded to the coating of more convoluted geometries with high levels of tailored functionalization or with structural ...
Costa, Rui R., Mano, J. F.
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Ion Transport Through Polyelectrolyte Multilayers
Macromolecular Rapid Communications, 2013Polyelectrolyte 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 +9 more
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Micropatterning Neuronal Cells on Polyelectrolyte Multilayers
Langmuir, 2004This paper describes an approach to adhere retinal cells on micropatterned polyelectrolyte multilayer (PEM) lines adsorbed on poly(dimethylsiloxane) (PDMS) surfaces using microfluidic networks. PEMs were patterned on flat, oxidized PDMS surfaces by sequentially flowing polyions through a microchannel network that was placed in contact with the PDMS ...
Darwin R, Reyes +4 more
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Photopatterned Nanoporosity in Polyelectrolyte Multilayer Films
Langmuir, 2008We report on spatial control of nanoporosity in polyelectrolyte multilayer (PEM) films using photopatterning and its effects on film optical and adsorption properties. Multilayers assembled from poly(acrylic acid-ran-vinylbenzyl acrylate) (PAArVBA), a photo-cross-linking polymer, and poly(allylamine hydrochloric acid) (PAH) were patterned using ...
Solar C, Olugebefola +3 more
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Internal structure of polyelectrolyte multilayer assemblies
Physical Chemistry Chemical Physics, 2006The paper deals with the correlation between the internal structure and dynamics of polyelectrolyte multilayers on one hand and their functional properties on the other hand. It considers different concepts of multilayer formation like driving forces, adsorption kinetics, mode of growth and stability aspects.
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