e1
EXERCISES
1. What are the three fundamental requirements of a
difference between these two mechanisms of charge
transfer?
3. Explain the inherent trade-off between choosing an
5. List three reasons why choosing an electrode with
appropriate mechanical properties is important.
2. Capacitive and Faradaic. Faradaic charge transfer
3. A large electrode surface area helps ensure electro-
chemical reversal for a large range of stimulation cur-
rents, due to increased capacitive and pseudocapacitive
4. Electrode capacitance, electrode surface area, and
capacity for pseudocapacitive reaction.
5. The electrode must conform to the tissue; the elec-
trode must be sufficiently stiff to allow for insertion
CHAPTER II.5.12
The Role of Biomaterials in Stimulating
Bioelectrodes