Coatings for Microneural Implants: Electrical Considerations

This chapter provides an overview of coatings that have been used to improve charge transfer across the electrode-tissue interface. Faradaic and non-faradaic charge transfer mechanisms are introduced, and their benefits and disadvantages are discussed in context of charge transfer at the electrode-tissue interface. The chapter then discusses specific examples of coatings for faradaic charge transfer and coatings for non-faradaic charge transfer. For each coating, the charge transfer mechanism is discussed, along with examples of their use in the literature to highlight their advantages and disadvantages.