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Nanoparticles natural polymers

Synthetic and natural polymers have been investigated which are biodegradable and biocompatible. The nanospheres are formed by precipitation of synthetic polymers or by denatu-ration/solidification of polymers of natural origin. Four techniques have been reported for preparing nanoparticles from synthetic preformed polymers. These include ... [Pg.5]

It is not possible to determine the molecular weight of highly cross-linked polymers and natural polymers by GPC as they do not dissolve in tetrahydrafuran. Accurate results for molecular weight can only be obtained if the polymer standards used have similar properties to the polymer employed to prepare the nanoparticles. In most cases, this similarity is absent. [Pg.10]

Key Words shRNA RNAi Biodegradable polymer Natural polymer Synthetic polymer Non-viral gene delivery Drug delivery Nanoparticle Microparticle Tumor targeting. [Pg.12]

Physical Properties of Natural Polymers and Methods Used to Prepare Nanoparticles... [Pg.535]

Nanoparticles Polymeric Various natural polymers, Monomer... [Pg.1256]

Kietzke, T. Neher, D. Landfester, K. Montenegro, R. Guntner, R. Scherf, U. Novel approaches to polymer blends based on polymer nanoparticles. Nature Mater. 2003, 2, 408 12. [Pg.1560]

Such polymer-immobilized tt-allylic complexes undergoing thermal decomposition can form nanoparticles in polymer [68], during which the thermolysis can be carried out even without a solvent (for example, by heating of the formed metallopolymer films using an infrared lamp). The nanoparticle sizes depend on many factors such as the characteristics of the used dispersant polymer, its molecular mass (the optimal value is M = 100,000), and the nature... [Pg.98]

DICHROISM IN NATURAL POLYMERS CONTAINING METAL NANOPARTICLES... [Pg.266]

Many fibers composed of natural polymers contain uniaxially oriented anisotropic hollow spaces in which metal particles can crystallize under appropriate conditions. As a consequence, the impregnated fibers contain anisotropic assemblies of metal nanoparticles that induce anisotropic optical properties... [Pg.266]

Natural polymer originated compounds can be applied as stabilizers of nanoclusters. Highly stable silver nanoparticles have been successfully synthesized by gamma ray irradiation in the presence of sodium alginate (Liu et al. 2009) or chitosan (Chen et al. 2007). [Pg.472]

Rao, Y. N., Banerjee, D., Datta, A., Das, S. K., Guin, R., and Saha, A. 2010. Gamma irradiation route to synthesis of highly re-dispersible natural polymer capped silver nanoparticles. Radiat. Phys. Chem. 79 1240-1246. [Pg.531]

The term microencapsulating implies obtaining nanoparticles of a compound in protecting covers which consist of film-forming polymeric materials [60]. The encapsulated substance forming the nucleus of the microcapsule may be a metal complex or a metal nanoparticle. The polymeric cover separates the nanoparticles from each other and from the environment and serves also as a stabilizer. The cover can be made from natural polymers, for instance proteins... [Pg.335]

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See also in sourсe #XX -- [ Pg.587 , Pg.588 ]



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