Secondary Structure of Polypeptide Multilayer Films: An Example of Locally Ordered Polyelectrolyte Multilayers
نویسندگان
چکیده
منابع مشابه
Perturbation of nanoscale structure of polypeptide multilayer thin films.
Multilayer thin films formed by sequential deposition of oppositely charged polypeptides on a charged surface are known from previous studies to comprise a mixture of types of secondary structure. Here, study of the perturbation of polypeptide film structure by deposition of poly(allylamine hydrochloride) (PAH) and poly(styrenesulfonate) (PSS) on the film surface has revealed differences in beh...
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The alternate deposition of polyanions and polycations on charged surfaces leads to the formation of nanostructured films called polyelectrolyte multilayers [1,2,3]. The layer by layer deposition process of polyelectrolytes is used to design films equipped by compartments containing "free" polymers or biomolecules [4-6]. Each compartment corresponds to a stratum of an exponentially growing poly...
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The Layer-by-layer deposition of positively and negatively charged macromolecular species is an ideal method for constructing thin films incorporating biological molecules. We investigate the adsorption of fibronectin onto polyelectrolyte multilayer (PEM) films using optical waveguide lightmode spectroscopy (OWLS) and atomic force microscopy (AFM). PEM films are formed by adsorption onto Si(Ti)...
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Reconstruction of extracellular matrix substrates for delivery of functional photoreceptors is crucial in pathologies such as retinal degeneration and age-related macular degeneration. In this study, we assembled polyelectrolyte films using the layer-by-layer deposition method. The buildup of three different films composed of poly(L-lysine)/chondroitin sulfate (PLL/CSA), poly(L-lysine)/poly(sty...
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Polyelectrolyte multilayer films are a versatile functionalization method of surfaces and rely on the alternated adsorption of oppositely charged species. Among such species, charged dyes can also be alternated with oppositely charged polymers, which is challenging from a fundamental point of view, because polyelectrolytes require a minimal number of charges, whereas even monovalent dyes can be...
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ژورنال
عنوان ژورنال: Langmuir
سال: 2002
ISSN: 0743-7463,1520-5827
DOI: 10.1021/la0117505