By Stoyko Fakirov
This ebook information all present concepts for changing bulk polymers into nano-size fabrics. The authors spotlight a number of actual and chemical methods for instruction of nano-size polymers. They describe the homes of those fabrics and their huge strength advertisement applications.
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Additional resources for Nano-size Polymers: Preparation, Properties, Applications
Example text
Has proposed the use of a diblock, consisting of the stabilizing and stealthing PEO block and a high charge density cationic polyelectrolyte as potential carrier of siRNA and plasmid DNA. Due to the high charge density of the polyelectrolyte block, the DNA complexes are particularly stable, in terms of dissociation and transfection activity. Moreover, siRNA complexes were found to show low cytotoxicity, improved siRNA delivery and high gene silencing activity [58], illustrating the importance of the molecular characteristics of the polymer, in this case the high charge density, for the particular bioapplication.
Macromol Rapid Commun 34:1459–1463 33. Liu Y, Abetz V, Mueller AHE (2003) Janus cylinders. Macromolecules 36:7894–7898 34. Wolf A, Walther A, Mueller AHE (2011) Janus triad: three types of nospherical, nanoscale Janus particles from one single triblock terpolymer. Macromolecules 44:9221–9229 35. Petzetakis N, Robin MP, Patterson JP, Kelley EG, Cotanda P, Bomans PHH, Sommerdijk NAJM, Dove A, Epps TH III, O’Reilly RK (2013) Hollow block copolymer nanoparticles through spontaneous one-step structural reorganization.
Polymerization-Induced Self-assembly As already described in the previous sections, the classical approach for preparation of polymeric nano-size aggregates from amphiphilic block copolymers by self-assembly in a selective solvent involves several steps. The first step is synthesis of an amphiphilic copolymer with a narrow molar mass distribution, followed by purification and characterization. Then, the self-assembly is performed by adding a non-solvent of one block into dilute copolymer solution or by direct dissolution of the copolymer in a selective solvent.