FERROCENYL SILICON-BASED DENDRIMERS AS MEDIATORS IN AMPEROMETRIC BIOSENSORS

The application of ferrocene-containing dendrimers as mediators in amp erometric biosensors is described. The steady-state amperometric respo nse of carbon paste electrodes containing these dendritic relay system s and glucose oxidase is investigated as a function of the glucose con centration and the applied potential. The results show that these sens ors respond rapidly to the addition of glucose. The dependence of the glucose sensor response on the size, the number of organometallic redo x centers and the nature of the organosilicon dendritic framework is d iscussed.