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Porous and nonporous nanocapsules by H-bonding self-assembly

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TLDR
On the basis of hydrogen bonding, poly(vinylpyrrolidone) and poly(methacrylic acid) were layer-by-layer deposited on the surface of the AgCl microcrystals or SiO2 colloidal particles in aqueous solution to construct core−shell structure particles as discussed by the authors.
Abstract
On the basis of hydrogen bonding, poly(vinylpyrrolidone) and poly(methacrylic acid) were layer-by-layer deposited on the surface of the AgCl microcrystals or SiO2 colloidal particles in aqueous solution to construct core−shell structure particles. When the AgCl and SiO2 cores were removed, the porous and nonporous nanocapsules were obtained, respectively. After the nonporous capsules were incubated in a KSCN and HNO3 mixture solution for 24 h, the capsules shrank and the pores were formed in the shell of the capsules.

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Journal ArticleDOI

Layer‐by‐Layer Hydrogen‐Bonded Polymer Films: From Fundamentals to Applications

TL;DR: In this article, the authors discuss the recent developments in the synthesis of layer-by-layer (LbL) materials based on hydrogen-bonded (HB) assembly, the study of their structure-property relationships, and the prospective applications of HB LbL constructs in biotechnology and biomedicine.
Journal ArticleDOI

Disulfide cross-linked polymer capsules: en route to biodeconstructible systems.

TL;DR: Hydrogen-bonded multilayer thin films were constructed using poly(vinylpyrrolidone) and poly(methacrylic acid) functionalized with cysteamine that included thiol moieties that were cross-linked to render the films stable at physiological pH.
Journal ArticleDOI

Disulfide-Stabilized Poly(methacrylic acid) Capsules: Formation, Cross-Linking, and Degradation Behavior

TL;DR: It is demonstrated that the capsules undergo reversible swelling in response to changes in external pH, and degrade in the presence of a physiological concentration of a natural thiol-containing peptide, glutathione.
Journal ArticleDOI

Hollow polymeric nanostructures—Synthesis, morphology and function

TL;DR: In this article, the development of reliable synthetic routes to polymeric nanostructures of well-defined composition, morphology and function is of scientific importance and technological interest, which can be achieved through direct and template-directed synthesis, core-shell precursors, and selfassembly of copolymers and polymer conjugates, as well as from dendrimers.
Journal ArticleDOI

Hydrogen-bonded interpolymer complexes as materials for pharmaceutical applications.

TL;DR: This review is an attempt to analyse and systematise existing literature on pharmaceutical application of hydrogen-bonded interpolymer complexes.
References
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Journal ArticleDOI

Controlled growth of monodisperse silica spheres in the micron size range

TL;DR: In this article, a system of chemical reactions has been developed which permits the controlled growth of spherical silica particles of uniform size by means of hydrolysis of alkyl silicates and subsequent condensation of silicic acid in alcoholic solutions.
Journal ArticleDOI

Nanoengineering of Inorganic and Hybrid Hollow Spheres by Colloidal Templating

TL;DR: Scanning and transmission electron microscopy images demonstrate that the wall thickness of the hollow spheres can be readily controlled by varying the number of nanoparticle-polymer deposition cycles, and the size and shape are determined by the morphology of the templating colloid.
Journal ArticleDOI

Buildup of ultrathin multilayer films by a self-assembly process: III. Consecutively alternating adsorption of anionic and cationic polyelectrolytes on charged surfaces

TL;DR: In this article, a solid substrate with a positively charged planar surface is immersed in a solution containing an anionic polyelectrolyte and a monolayer of the polyanion is adsorbed.
Journal ArticleDOI

Novel Hollow Polymer Shells by Colloid-Templated Assembly of Polyelectrolytes

TL;DR: Possible areas of application for polyelectrolyte shells range from the pharmaceutical, food, cosmetic, and paint industries to catalysis and microcrystallization.
Journal ArticleDOI

Hollow capsule processing through colloidal templating and self-assembly

TL;DR: This article focuses on a recent novel and versatile technique, based on a combination of colloidal templating and self-assembly processes, developed for synthesizing uniform hollow capsules of a broad range of materials.
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