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. 2011 Jun 27;11(7):6645–6655. doi: 10.3390/s110706645

Figure 4.

Figure 4.

Sensor performance: (a) Real-time measurement of OFF state sensor response to the target riboflavin and negative control QCA via ISD vs. Time (s) with VSD = 0.2 V and VGS = 8 V. (b) Real-time ON state sensing via ISD vs. time (s) for 10 nM exposure to riboflavin. Inset shows ISD vs. VG sensor response to 10 μM riboflavin and 10 μM negative control QCA. (c) Signal dependence vs. riboflavin concentration (M) for OFF state sensing scheme. (d) Signal dependence vs. riboflavin concentration (M) for ON state sensing scheme.