A process for making polys whose phenolic hydroxyl groups are partially protected by acid-decomposable or -eliminable groups, by which the degree of deblocking of the phenolic hydroxyl groups is controlled. Also described are methods of screening compounds for the ability to suppress or reduce microglial activation. A conductive layer increases the electric field strength in the gas-filled layer between the electrical conductor and the conductive layer. Circuitry on the secondary side is arranged to provide an output voltage for the electrical device during active mode. The functionalized end of the SAM can optionally modified chemically as appropriate, and is then reacted with metal-bearing species such as tetrakistitanium, TiN24, to provide a titanium nitride layer.