Modified Polyelectrolyte Microcapsules as Smart Defense Systems

Shchukin, Dmitry; Shutava, Tatsiana G.; Shchukina, Elena; Sukhorukov, Gleb B.; Lvov, Yuri

doi:10.1021/cm049506x

Cited by 87 publications

(75 citation statements)

References 47 publications

(31 reference statements)

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“…[94][95][96][97][98] Spasova et al have synthesized optically tunable microspheres with magnetic/gold particle shells using LbL assembly. [85] Such microspheres can be assembled into chains up to 1 mm in length by deposition in a magnetic field.…”

Section: Magnetic Nanoparticlesmentioning

confidence: 99%

Freestanding Nanostructures via Layer‐by‐Layer Assembly

2006

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Freestanding flexible nanocomposite structures fabricated by layer‐by‐layer (LbL) assembly are promising candidates for many potential applications, such as in the fields of thermomechanical sensing, controlled release, optical detection, and drug delivery. In this article, we review recent advances in the fabrication and characterization of different types of freestanding LbL structures in air and at air/liquid and liquid/liquid interfaces, including micro‐ and nanocapsules, microcantilevers, freely suspended membranes, encapsulated nanoparticle arrays, and sealed‐cavity arrays. Several recently developed fabrication techniques, such as spin‐assisted coating, dipping, and micropatterning, make the assembly process more efficient and impart novel physical properties to the freestanding films.

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Section: Magnetic Nanoparticlesmentioning

confidence: 99%

Freestanding Nanostructures via Layer‐by‐Layer Assembly

2006

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“…From the chemical point of view, all multifunctional vectors based on silicon dioxide (pure SiO 2 , organically modified SiO 2, SiO 2 -ZrO 2 , SiO 2 -CaO-P 2 O 5 mixed oxides) are often synthesized in presence of template agents [200][201][202][203][204][205][206][207][208][209]. The SiO 2 -ZrO 2 mesoporous microparticles containing ZrO 2 between 0 and 20 mol % were far more stable in relevant biological conditions, than pure silica gel.…”

Section: Biocomposites As Means For Drug Transfermentioning

confidence: 99%

Bionanocomposites Assembled by “From Bottom to Top” Method

Pomogailo

Джардималиева

2014

Nanostructured Materials Preparation via Condensation Ways

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Particles, which take part in different biological processes, have a special place in nanometer composites. Rich and variable biochemistry of proteins displays key importance of a nanometer phenomenon for a working mechanism of living organisms [1,2], and this provides a wide range of possibilities for development of new types of hybrid nanomaterials with constructible structures, functions and shapes [3][4][5].Integration of nanoparticles and biomolecules, each having unique properties, on the one hand, and being in the same nanometer scale (enzymes, antigens, and antibodies of typical sizes 2-20 nm like nanoparticles), on the other hand, as of two structurally compatible classes of materials, gives resultant new hybrid nanomaterials with synergetic properties and functions (Fig. 7.1).Interaction of nanoparticles with biopolymers (proteins, nucleic acids, polysaccharides) plays very important role in enzyme catalysis, biosorption, biohydrometallurgy, geobiotechnology, etc.). There is a great interest to nanomaterials, which can be used in biomedical and pharmaceutical applications due to their biocompatibility and biodegradation. At the same time bionanocomposites should meet some demands to plasticity of a matrix, they should have improved barrier, antimicrobial properties, ability to controlled release of bioactive substances such as antimicrobial agents, antioxidants, drugs, calcium compounds in biologically available form and their mixtures, etc. Biopolymers, such as natural and synthetic proteins, obtained by chemical methods or by genetic modification of microorganisms or plants, nucleic acids (including synthetic ones), biodegraded complex polyethers, such as polylactic acid, and its derivatives, oligo-hydroxyalkanoate, most often, polyhydroxybutyrate, their copolymers, biomedical materials, such as hydroxyapatites, are used. There is an interesting group of materials for this purpose including synthetic and natural (vegetable and animal) polysaccharides, such as cellulose and its derivatives, alginates, dextranes, acacia gum, chitosan, and any of its natural and synthetic derivatives, especially chitosan acetate, and proteins obtained from raw animal materials, as well as proteins from maize (especially zein) or soya, gluten derivatives, gelatin, casein, etc. Relatively widely used in

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“…Although the methods for studying multilayer properties are straightforward, they are very often not applicable or are time consuming because of the low amount of material studied and the possible influence of the surface used as a support for layer growth. To eliminate the first factor, one should drastically increase the total surface of the multilayers, which can be done by using colloidal particles as templates [33]. Dissolution of the colloidal core could avoid the second objection.…”

Section: Preparation Of E-lbl Nanoshellsmentioning

confidence: 99%

Nanoshells for Drug Delivery

Villiers

Lvov

2003

Nanotechnologies for the Life Sciences

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The sections in this article are Introduction Metallic Nanoshells Synthesis of the Nanoshells Application in Nanomedicine Nanoshells Formed by Polyion E ‐ Lb L Self‐assembly Preparation of E ‐ Lb L Nanoshells Proving the Nanoshells Influence of the Core on Nanoshell Properties Barrier Properties of E ‐ Lb L Assembled Nanoshells Controlled Release of Active Pharmaceutical Ingredients Encapsulated by E ‐ Lb L Assembled Nanoshells Nanoshell Permeability for Low‐molecular‐weight Compounds Nanoshell Permeability for High‐molecular‐weight Compounds E ‐ Lb L Assembled Nanoshells as Protective and Functional Barriers Magnetic Nanoshells Nano‐organized Shells with Functions other than a Adjustable Diffusion Barrier Colloidal Stabilization Interpolyelectrolyte Complex Formation Biomimetic Approach Conclusion

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Modified Polyelectrolyte Microcapsules as Smart Defense Systems

Cited by 87 publications

References 47 publications

Freestanding Nanostructures via Layer‐by‐Layer Assembly

Freestanding Nanostructures via Layer‐by‐Layer Assembly

Bionanocomposites Assembled by “From Bottom to Top” Method

Nanoshells for Drug Delivery

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