Figure 12

Average static response of all the cantilevers per array to the flow of liquid at a rate of 10 μl/min (hatched section) through the chamber sealed with either the Nescofilm (blue data) or the O-ring (red). The optical read-out of the cantilever response was less affected by the less elastic sealing method using the Nescofilm than using the O-ring. Both methods were applicable for the experiments, as long the sensors within an array responded in the same way to flow. By applying a differential read-out such flow induced signals were eliminated.