Polymer encapsulating agents

Using CO2 as a Polymer Swelling Agent in the Encapsulation of Proteins... 

The application of specialty polymers in electronics and photonics is extensive, both in a passive role — when they act as insulators, encapsulating agents, adhesives, and materials for integrated circuit (1C) fabrication — and in an active way as electronic and photonic conductors, or as active material in nonlinear optics. 

It is very important to select a proper ratio of substance to be encapsulated and a polymer used to encapsulate. The ratio of ensapsulant to encapsulating agent greatly affects the preliminary characteristics such as entrapment efficiency, size, and shape of the hydrogel beads. 

Pinho E, Grootveld M, Soares G, Henriques M. Cyclodextrins as encapsulation agents for plant bioactive compounds. Carbohydr Polym. )an 30, 2014 101 121-135. 

Water-soluble organic polymers are of considerable commercial importance, whereas few examples of water-soluble metal-containing polymers have been reported. Both cationic and anionic water-soluble polyferrocenylsilanes have been prepared by a variety of different synthetic methodologies [132-138]. These materials are of potential interest as electrode materials and as redox-active polymeric electrolytes, the ionic conductivity of which might be tuned by oxidation of the iron centers. Based on the potential formation of micellar aggregates, these materials may also prove useful as redox-active encapsulation agents [139]. Furthermore, various water-soluble ferrocenium salts have been shown to display anti-cancer activity [140]. 

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