683460.fig.005a
(a)
683460.fig.005b
(b)
683460.fig.005c
(c)
683460.fig.005d
(d)
Figure 5: A permittivity as a function of frequency for GNPs-modified SiO2 thin films for DNA immobilization and hybridization detection after (a) 30 minutes, (b) 1 hour, (c) 2 hours, and (d) 4 hours.