Microcapsules have received a wealth of interest as materials for the encapsulation and controlled release of small molecules. Much of the focus has been on the use of microcapsules for drug delivery and ultrasmall volume reaction vessels. This presentation examines approaches to the construction and characterization of polyelectrolyte microcapsules loaded with redox-active molecules. The microcapsules were synthesized using layer-by-layer assembly of alternating polyelectrolyte layers on polystyrene bead templates ranging from 200 nm to 4.5 �m in diameter. Results of reactivity testing of a series of ferrocene derivatives after encapsulation and release will be described.  Studies to determine loading and release levels and loading capacity will also be detailed. Potential applications will be briefly discussed.

Polyelectrolyte microcapsules as carriers of redox materials

243rd National Meeting (2012)

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