| 摘要 |
A microelectrode assembly is made by screen process printing a layer of electrode material 2, of thickness characteristic of a microelectrode, (1 micrometre of less), onto a substrate 1. An insulating material 3 is provided e.g. by screen process printing, to overlay at least part of the layer of microelectrode material, and an edge of the layer is exposed to constitute an active microelectrode surface. The electrode material is preferably gold but may be platinum, silver, silver- palladium or copper, the substrate a ceramic and the insulating material a dielectric, glass or polymer. A biologically active material such as an enzyme may be bonded to the insulating material and a counter electrode 4 may be formed on the back of the substrate. <IMAGE> |
